Re: Do functions never get inlined by jvm?
primitive hinted fns will get inlined. You can also play the same kinds of
games that Clojure does with definterface+deftype and fns that declare
:inline metadata.
If you don't want to learn the subtleties of Clojure performance tuning
then you can always write your performance critical bits in Java and call
into it. Some folks, like the people at Prismatic, seem to be doing pretty
well writing all their performance critical code in Clojure, but they've
built some tools to avoid the various potential pitfalls.
On Thu, Apr 25, 2013 at 9:19 AM, Alice dofflt...@gmail.com wrote:
I create many small methods in java without worrying about the
performance since it's usually the target of inline optimization. For
example,
public class Foo {
public static long inc(long l) {
return ++l;
}
public static long f1() {
long l = 0;
for (int i=0; i 10; i++) {
l++;
}
return l;
}
public static long f2() {
long l = 0;
for (int i=0; i 10; i++) {
l = inc(l);
}
return l;
}
}
(time (Foo/f1))
(time (Foo/f1))
(time (Foo/f1))
(time (Foo/f2))
(time (Foo/f2))
(time (Foo/f2))
Elapsed time: 23.309532 msecs
Elapsed time: 23.333039 msecs
Elapsed time: 21.714753 msecs
Elapsed time: 22.943366 msecs
Elapsed time: 21.612783 msecs
Elapsed time: 21.71376 msecs
But clojure funtions seem to be never get inlined.
(def obj (Object.))
(defn getObj [] obj)
(defn f1 [] obj)
(defn f2 [] (getObj))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f2)))
(time (dotimes [n 1] (f2)))
(time (dotimes [n 1] (f2)))
Elapsed time: 67.758744 msecs
Elapsed time: 68.555306 msecs
Elapsed time: 68.725147 msecs
Elapsed time: 104.810459 msecs
Elapsed time: 103.273618 msecs
Elapsed time: 103.374595 msecs
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Re: Do functions never get inlined by jvm?
Primitive hinted funtions seem to be not an exception.
(defn my-inc ^long [^long l] (inc l))
(defn f1 [^long l] (inc l))
(defn f2 [^long l] (my-inc l))
(time (dotimes [n 1] (f1 1)))
(time (dotimes [n 1] (f1 1)))
(time (dotimes [n 1] (f1 1)))
(time (dotimes [n 1] (f2 1)))
(time (dotimes [n 1] (f2 1)))
(time (dotimes [n 1] (f2 1)))
Elapsed time: 68.683431 msecs
Elapsed time: 68.964182 msecs
Elapsed time: 68.105047 msecs
Elapsed time: 108.576746 msecs
Elapsed time: 100.992193 msecs
Elapsed time: 100.945511 msecs
On Apr 25, 10:32 pm, David Nolen dnolen.li...@gmail.com wrote:
primitive hinted fns will get inlined. You can also play the same kinds of
games that Clojure does with definterface+deftype and fns that declare
:inline metadata.
If you don't want to learn the subtleties of Clojure performance tuning
then you can always write your performance critical bits in Java and call
into it. Some folks, like the people at Prismatic, seem to be doing pretty
well writing all their performance critical code in Clojure, but they've
built some tools to avoid the various potential pitfalls.
On Thu, Apr 25, 2013 at 9:19 AM, Alice dofflt...@gmail.com wrote:
I create many small methods in java without worrying about the
performance since it's usually the target of inline optimization. For
example,
public class Foo {
public static long inc(long l) {
return ++l;
}
public static long f1() {
long l = 0;
for (int i=0; i 10; i++) {
l++;
}
return l;
}
public static long f2() {
long l = 0;
for (int i=0; i 10; i++) {
l = inc(l);
}
return l;
}
}
(time (Foo/f1))
(time (Foo/f1))
(time (Foo/f1))
(time (Foo/f2))
(time (Foo/f2))
(time (Foo/f2))
Elapsed time: 23.309532 msecs
Elapsed time: 23.333039 msecs
Elapsed time: 21.714753 msecs
Elapsed time: 22.943366 msecs
Elapsed time: 21.612783 msecs
Elapsed time: 21.71376 msecs
But clojure funtions seem to be never get inlined.
(def obj (Object.))
(defn getObj [] obj)
(defn f1 [] obj)
(defn f2 [] (getObj))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f2)))
(time (dotimes [n 1] (f2)))
(time (dotimes [n 1] (f2)))
Elapsed time: 67.758744 msecs
Elapsed time: 68.555306 msecs
Elapsed time: 68.725147 msecs
Elapsed time: 104.810459 msecs
Elapsed time: 103.273618 msecs
Elapsed time: 103.374595 msecs
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Re: Do functions never get inlined by jvm?
jvm.tools.analyzer is a nice tool for exploration in this area.
I don't personally know all the subtleties here, but after some playing I
managed to emit an unboxing function.
I could tell from the AST.
https://gist.github.com/frenchy64/5459989
Thanks,
Ambrose
On Thu, Apr 25, 2013 at 9:44 PM, Alice dofflt...@gmail.com wrote:
Primitive hinted funtions seem to be not an exception.
(defn my-inc ^long [^long l] (inc l))
(defn f1 [^long l] (inc l))
(defn f2 [^long l] (my-inc l))
(time (dotimes [n 1] (f1 1)))
(time (dotimes [n 1] (f1 1)))
(time (dotimes [n 1] (f1 1)))
(time (dotimes [n 1] (f2 1)))
(time (dotimes [n 1] (f2 1)))
(time (dotimes [n 1] (f2 1)))
Elapsed time: 68.683431 msecs
Elapsed time: 68.964182 msecs
Elapsed time: 68.105047 msecs
Elapsed time: 108.576746 msecs
Elapsed time: 100.992193 msecs
Elapsed time: 100.945511 msecs
On Apr 25, 10:32 pm, David Nolen dnolen.li...@gmail.com wrote:
primitive hinted fns will get inlined. You can also play the same kinds
of
games that Clojure does with definterface+deftype and fns that declare
:inline metadata.
If you don't want to learn the subtleties of Clojure performance tuning
then you can always write your performance critical bits in Java and call
into it. Some folks, like the people at Prismatic, seem to be doing
pretty
well writing all their performance critical code in Clojure, but they've
built some tools to avoid the various potential pitfalls.
On Thu, Apr 25, 2013 at 9:19 AM, Alice dofflt...@gmail.com wrote:
I create many small methods in java without worrying about the
performance since it's usually the target of inline optimization. For
example,
public class Foo {
public static long inc(long l) {
return ++l;
}
public static long f1() {
long l = 0;
for (int i=0; i 10; i++) {
l++;
}
return l;
}
public static long f2() {
long l = 0;
for (int i=0; i 10; i++) {
l = inc(l);
}
return l;
}
}
(time (Foo/f1))
(time (Foo/f1))
(time (Foo/f1))
(time (Foo/f2))
(time (Foo/f2))
(time (Foo/f2))
Elapsed time: 23.309532 msecs
Elapsed time: 23.333039 msecs
Elapsed time: 21.714753 msecs
Elapsed time: 22.943366 msecs
Elapsed time: 21.612783 msecs
Elapsed time: 21.71376 msecs
But clojure funtions seem to be never get inlined.
(def obj (Object.))
(defn getObj [] obj)
(defn f1 [] obj)
(defn f2 [] (getObj))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f2)))
(time (dotimes [n 1] (f2)))
(time (dotimes [n 1] (f2)))
Elapsed time: 67.758744 msecs
Elapsed time: 68.555306 msecs
Elapsed time: 68.725147 msecs
Elapsed time: 104.810459 msecs
Elapsed time: 103.273618 msecs
Elapsed time: 103.374595 msecs
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Re: Do functions never get inlined by jvm?
Three repetitions is not nearly enough to get a feel for how hotspot optimizes functions when it detects they're in a tight loop. I don't know how javac works, but Clojure doesn't optimize much for cases where hotspot can do a much better job over time. -Phil -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
If that's a problem, you could try https://github.com/hugoduncan/criterium On Thu, Apr 25, 2013 at 5:38 PM, Phil Hagelberg p...@hagelb.org wrote: Three repetitions is not nearly enough to get a feel for how hotspot optimizes functions when it detects they're in a tight loop. I don't know how javac works, but Clojure doesn't optimize much for cases where hotspot can do a much better job over time. -Phil -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
You have to be very careful with microbenchmarks like this. I recommend
writing less trivial benchmarks. For example
http://github.com/clojure/test.benchmark/blob/master/src/main/clojure/alioth/spectral_norm.clj
This code demonstrates performance on par with plain Java. There are many
other similar examples in the test.benchark project.
David
On Thu, Apr 25, 2013 at 9:44 AM, Alice dofflt...@gmail.com wrote:
Primitive hinted funtions seem to be not an exception.
(defn my-inc ^long [^long l] (inc l))
(defn f1 [^long l] (inc l))
(defn f2 [^long l] (my-inc l))
(time (dotimes [n 1] (f1 1)))
(time (dotimes [n 1] (f1 1)))
(time (dotimes [n 1] (f1 1)))
(time (dotimes [n 1] (f2 1)))
(time (dotimes [n 1] (f2 1)))
(time (dotimes [n 1] (f2 1)))
Elapsed time: 68.683431 msecs
Elapsed time: 68.964182 msecs
Elapsed time: 68.105047 msecs
Elapsed time: 108.576746 msecs
Elapsed time: 100.992193 msecs
Elapsed time: 100.945511 msecs
On Apr 25, 10:32 pm, David Nolen dnolen.li...@gmail.com wrote:
primitive hinted fns will get inlined. You can also play the same kinds
of
games that Clojure does with definterface+deftype and fns that declare
:inline metadata.
If you don't want to learn the subtleties of Clojure performance tuning
then you can always write your performance critical bits in Java and call
into it. Some folks, like the people at Prismatic, seem to be doing
pretty
well writing all their performance critical code in Clojure, but they've
built some tools to avoid the various potential pitfalls.
On Thu, Apr 25, 2013 at 9:19 AM, Alice dofflt...@gmail.com wrote:
I create many small methods in java without worrying about the
performance since it's usually the target of inline optimization. For
example,
public class Foo {
public static long inc(long l) {
return ++l;
}
public static long f1() {
long l = 0;
for (int i=0; i 10; i++) {
l++;
}
return l;
}
public static long f2() {
long l = 0;
for (int i=0; i 10; i++) {
l = inc(l);
}
return l;
}
}
(time (Foo/f1))
(time (Foo/f1))
(time (Foo/f1))
(time (Foo/f2))
(time (Foo/f2))
(time (Foo/f2))
Elapsed time: 23.309532 msecs
Elapsed time: 23.333039 msecs
Elapsed time: 21.714753 msecs
Elapsed time: 22.943366 msecs
Elapsed time: 21.612783 msecs
Elapsed time: 21.71376 msecs
But clojure funtions seem to be never get inlined.
(def obj (Object.))
(defn getObj [] obj)
(defn f1 [] obj)
(defn f2 [] (getObj))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f2)))
(time (dotimes [n 1] (f2)))
(time (dotimes [n 1] (f2)))
Elapsed time: 67.758744 msecs
Elapsed time: 68.555306 msecs
Elapsed time: 68.725147 msecs
Elapsed time: 104.810459 msecs
Elapsed time: 103.273618 msecs
Elapsed time: 103.374595 msecs
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Re: Do functions never get inlined by jvm?
Found this blog post written by fogus:
To provide this level of flexibility Clojure establishes a level of
indirection. Specifically, all function lookups through a Var occur,
at the lowest level, through an atomic volatile. This happens every
time that a function bound using the def/defn special forms is called.
This indirection is not amenable to HotSpot optimizations.
http://blog.fogus.me/2011/10/14/why-clojure-doesnt-need-invokedynamic-but-it-might-be-nice/
On Apr 25, 10:19 pm, Alice dofflt...@gmail.com wrote:
I create many small methods in java without worrying about the
performance since it's usually the target of inline optimization. For
example,
public class Foo {
public static long inc(long l) {
return ++l;
}
public static long f1() {
long l = 0;
for (int i=0; i 10; i++) {
l++;
}
return l;
}
public static long f2() {
long l = 0;
for (int i=0; i 10; i++) {
l = inc(l);
}
return l;
}
}
(time (Foo/f1))
(time (Foo/f1))
(time (Foo/f1))
(time (Foo/f2))
(time (Foo/f2))
(time (Foo/f2))
Elapsed time: 23.309532 msecs
Elapsed time: 23.333039 msecs
Elapsed time: 21.714753 msecs
Elapsed time: 22.943366 msecs
Elapsed time: 21.612783 msecs
Elapsed time: 21.71376 msecs
But clojure funtions seem to be never get inlined.
(def obj (Object.))
(defn getObj [] obj)
(defn f1 [] obj)
(defn f2 [] (getObj))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f2)))
(time (dotimes [n 1] (f2)))
(time (dotimes [n 1] (f2)))
Elapsed time: 67.758744 msecs
Elapsed time: 68.555306 msecs
Elapsed time: 68.725147 msecs
Elapsed time: 104.810459 msecs
Elapsed time: 103.273618 msecs
Elapsed time: 103.374595 msecs
--
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Re: Do functions never get inlined by jvm?
Which is out of date.
On Thu, Apr 25, 2013 at 12:47 PM, Alice dofflt...@gmail.com wrote:
Found this blog post written by fogus:
To provide this level of flexibility Clojure establishes a level of
indirection. Specifically, all function lookups through a Var occur,
at the lowest level, through an atomic volatile. This happens every
time that a function bound using the def/defn special forms is called.
This indirection is not amenable to HotSpot optimizations.
http://blog.fogus.me/2011/10/14/why-clojure-doesnt-need-invokedynamic-but-it-might-be-nice/
On Apr 25, 10:19 pm, Alice dofflt...@gmail.com wrote:
I create many small methods in java without worrying about the
performance since it's usually the target of inline optimization. For
example,
public class Foo {
public static long inc(long l) {
return ++l;
}
public static long f1() {
long l = 0;
for (int i=0; i 10; i++) {
l++;
}
return l;
}
public static long f2() {
long l = 0;
for (int i=0; i 10; i++) {
l = inc(l);
}
return l;
}
}
(time (Foo/f1))
(time (Foo/f1))
(time (Foo/f1))
(time (Foo/f2))
(time (Foo/f2))
(time (Foo/f2))
Elapsed time: 23.309532 msecs
Elapsed time: 23.333039 msecs
Elapsed time: 21.714753 msecs
Elapsed time: 22.943366 msecs
Elapsed time: 21.612783 msecs
Elapsed time: 21.71376 msecs
But clojure funtions seem to be never get inlined.
(def obj (Object.))
(defn getObj [] obj)
(defn f1 [] obj)
(defn f2 [] (getObj))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f2)))
(time (dotimes [n 1] (f2)))
(time (dotimes [n 1] (f2)))
Elapsed time: 67.758744 msecs
Elapsed time: 68.555306 msecs
Elapsed time: 68.725147 msecs
Elapsed time: 104.810459 msecs
Elapsed time: 103.273618 msecs
Elapsed time: 103.374595 msecs
--
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Re: Do functions never get inlined by jvm?
Care to elaborate which part is out of date?
On Apr 26, 1:48 am, David Nolen dnolen.li...@gmail.com wrote:
Which is out of date.
On Thu, Apr 25, 2013 at 12:47 PM, Alice dofflt...@gmail.com wrote:
Found this blog post written by fogus:
To provide this level of flexibility Clojure establishes a level of
indirection. Specifically, all function lookups through a Var occur,
at the lowest level, through an atomic volatile. This happens every
time that a function bound using the def/defn special forms is called.
This indirection is not amenable to HotSpot optimizations.
http://blog.fogus.me/2011/10/14/why-clojure-doesnt-need-invokedynamic...
On Apr 25, 10:19 pm, Alice dofflt...@gmail.com wrote:
I create many small methods in java without worrying about the
performance since it's usually the target of inline optimization. For
example,
public class Foo {
public static long inc(long l) {
return ++l;
}
public static long f1() {
long l = 0;
for (int i=0; i 10; i++) {
l++;
}
return l;
}
public static long f2() {
long l = 0;
for (int i=0; i 10; i++) {
l = inc(l);
}
return l;
}
}
(time (Foo/f1))
(time (Foo/f1))
(time (Foo/f1))
(time (Foo/f2))
(time (Foo/f2))
(time (Foo/f2))
Elapsed time: 23.309532 msecs
Elapsed time: 23.333039 msecs
Elapsed time: 21.714753 msecs
Elapsed time: 22.943366 msecs
Elapsed time: 21.612783 msecs
Elapsed time: 21.71376 msecs
But clojure funtions seem to be never get inlined.
(def obj (Object.))
(defn getObj [] obj)
(defn f1 [] obj)
(defn f2 [] (getObj))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f1)))
(time (dotimes [n 1] (f2)))
(time (dotimes [n 1] (f2)))
(time (dotimes [n 1] (f2)))
Elapsed time: 67.758744 msecs
Elapsed time: 68.555306 msecs
Elapsed time: 68.725147 msecs
Elapsed time: 104.810459 msecs
Elapsed time: 103.273618 msecs
Elapsed time: 103.374595 msecs
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Re: Do functions never get inlined by jvm?
2013/4/25 David Nolen dnolen.li...@gmail.com + :inline metadata Which is not documented anywhere and might as well not exist for regular Clojure users. -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
(doc definline) On Thu, Apr 25, 2013 at 1:17 PM, Michael Klishin michael.s.klis...@gmail.com wrote: 2013/4/25 David Nolen dnolen.li...@gmail.com + :inline metadata Which is not documented anywhere and might as well not exist for regular Clojure users. -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
2013/4/25 David Nolen dnolen.li...@gmail.com (doc definline) Macro Experimental - like defmacro, except defines a named function whose body is the expansion, calls to which may be expanded inline as if it were a macro. Cannot be used with variadic () args. If you think this is useful to regular users (who have no idea about the compiler internals or JVM), you may want to reconsider. Also, if I don't know definline exists, how do I find out? Books, docs don't mention it. 1 page on clojure.org that you have to find doesn't count. -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
user= (apropos inline) (definline) user= (doc inline) .. 2013/4/25 David Nolen dnolen.li...@gmail.com (doc definline) Macro Experimental - like defmacro, except defines a named function whose body is the expansion, calls to which may be expanded inline as if it were a macro. Cannot be used with variadic () args. If you think this is useful to regular users (who have no idea about the compiler internals or JVM), you may want to reconsider. Also, if I don't know definline exists, how do I find out? Books, docs don't mention it. 1 page on clojure.org that you have to find doesn't count. -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Softaddictslprefonta...@softaddicts.ca sent by ibisMail from my ipad! -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
2013/4/25 Softaddicts lprefonta...@softaddicts.ca user= (apropos inline) (definline) Yeah, yeah. It all starts with (apropos apropos), right? I knew it. -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
You asked a simple question, you got a plain answer. Now if you are still grunting there's not much I can do about that. I do agree that the doc string could be a bit more descriptive. But what does it mean to be understandable by normal users ? I am still trying to size what is a normal Lisp user these days. No single answer seems to fit so far. When I first used Lisp, inlining meant writing pseudo assembly code right through your Lisp code most of the time using a macro. Procedural languages had most of the time extension directives to allow you to force inlining at your will. Inlining is a concept that existed for more than 40 years in many programming languages. It's not anything new. Now if you want to use it but do not understand the implications, well it's not the doc string that will explain it to you. To me, definline looks simpler than any of the above. Luc 2013/4/25 Softaddicts lprefonta...@softaddicts.ca user= (apropos inline) (definline) Yeah, yeah. It all starts with (apropos apropos), right? I knew it. -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Softaddictslprefonta...@softaddicts.ca sent by ibisMail from my ipad! -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
2013/4/25 Softaddicts lprefonta...@softaddicts.ca Inlining is a concept that existed for more than 40 years in many programming languages. It's not anything new. The OP probably know what inlining is because, hm, the subject has that word. Then she is recommended to use something that only technically has documentation (and is marked as experimental) and is not known or used by many. I've pointed that out. Problem? -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
You could come up with definline yourself by thinking about what inlining is and wrapping things in macros, it seems to me the real problem definline solves is to also be able to use the output as a function, which is more about keeping convenience than performance gains. I think the people who want to know about this stuff will find it, it took me a couple hours myself when I worked through this thought process a year or so ago. /lurk On Thu, Apr 25, 2013 at 2:05 PM, Softaddicts lprefonta...@softaddicts.cawrote: You asked a simple question, you got a plain answer. Now if you are still grunting there's not much I can do about that. I do agree that the doc string could be a bit more descriptive. But what does it mean to be understandable by normal users ? I am still trying to size what is a normal Lisp user these days. No single answer seems to fit so far. When I first used Lisp, inlining meant writing pseudo assembly code right through your Lisp code most of the time using a macro. Procedural languages had most of the time extension directives to allow you to force inlining at your will. Inlining is a concept that existed for more than 40 years in many programming languages. It's not anything new. Now if you want to use it but do not understand the implications, well it's not the doc string that will explain it to you. To me, definline looks simpler than any of the above. Luc 2013/4/25 Softaddicts lprefonta...@softaddicts.ca user= (apropos inline) (definline) Yeah, yeah. It all starts with (apropos apropos), right? I knew it. -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Softaddictslprefonta...@softaddicts.ca sent by ibisMail from my ipad! -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
Well you looked quite outraged that it could not be found easily. I demonstrated that doc strings can be easily searched. Of course my answer comes in total antagonism with your usual position about the bad state of the existing documentation which is incomplete, wrong, ... and so forth. Your reaction does not suprise me, your behavior is quite predictable. Like an old vinyl record with all these scratches being played over and over again. Definline may be tagged as experimental but defrecord, defprotocol, ... are marked as being in alpha stage. Does this prevents you from using them ? I hope so, especially in production. Luc P. 2013/4/25 Softaddicts lprefonta...@softaddicts.ca Inlining is a concept that existed for more than 40 years in many programming languages. It's not anything new. The OP probably know what inlining is because, hm, the subject has that word. Then she is recommended to use something that only technically has documentation (and is marked as experimental) and is not known or used by many. I've pointed that out. Problem? -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Softaddictslprefonta...@softaddicts.ca sent by ibisMail from my ipad! -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
2013/4/25 Softaddicts lprefonta...@softaddicts.ca Of course my answer comes in total antagonism with your usual position about the bad state of the existing documentation which is incomplete, wrong, ... and so forth. Your reaction does not suprise me, your behavior is quite predictable. Like an old vinyl record with all these scratches being played over and over again. Nothing has changed w.r.t. Clojure/core's attitude towards documentation and making it easy for other people to contribute documentation improvements that are rapidly integrated instead of gathering dust in JIRA for many months. Why would I suddenly start singing praises to something that is broken and does not change? Sorry pal, someone has to periodically remind those in control of Clojure that we are exactly where we were years ago. And that the entire community has to put up with this. Definline may be tagged as experimental but defrecord, defprotocol, ... are marked as being in alpha stage. Does this prevents you from using them ? Those are mentioned in every book and are widely used. It would be crazy to break those by now. Makes a bit of difference when it comes to recommending features to people, don't you think? -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
May I suggest you an upgrade ? http://www.ehow.com/how_6949396_record-78-vinyl-records-cd.html 2013/4/25 Softaddicts lprefonta...@softaddicts.ca Of course my answer comes in total antagonism with your usual position about the bad state of the existing documentation which is incomplete, wrong, ... and so forth. Your reaction does not suprise me, your behavior is quite predictable. Like an old vinyl record with all these scratches being played over and over again. Nothing has changed w.r.t. Clojure/core's attitude towards documentation and making it easy for other people to contribute documentation improvements that are rapidly integrated instead of gathering dust in JIRA for many months. Why would I suddenly start singing praises to something that is broken and does not change? Sorry pal, someone has to periodically remind those in control of Clojure that we are exactly where we were years ago. And that the entire community has to put up with this. Definline may be tagged as experimental but defrecord, defprotocol, ... are marked as being in alpha stage. Does this prevents you from using them ? Those are mentioned in every book and are widely used. It would be crazy to break those by now. Makes a bit of difference when it comes to recommending features to people, don't you think? -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Softaddictslprefonta...@softaddicts.ca sent by ibisMail from my ipad! -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
Good vinyls are considered higher quality by audiophiles, because there are less stages in between the mastering and amplification. There is more potential of better performance. It can be considered a real-world case of inlining. On Thu, Apr 25, 2013 at 3:16 PM, Softaddicts lprefonta...@softaddicts.cawrote: May I suggest you an upgrade ? http://www.ehow.com/how_6949396_record-78-vinyl-records-cd.html 2013/4/25 Softaddicts lprefonta...@softaddicts.ca Of course my answer comes in total antagonism with your usual position about the bad state of the existing documentation which is incomplete, wrong, ... and so forth. Your reaction does not suprise me, your behavior is quite predictable. Like an old vinyl record with all these scratches being played over and over again. Nothing has changed w.r.t. Clojure/core's attitude towards documentation and making it easy for other people to contribute documentation improvements that are rapidly integrated instead of gathering dust in JIRA for many months. Why would I suddenly start singing praises to something that is broken and does not change? Sorry pal, someone has to periodically remind those in control of Clojure that we are exactly where we were years ago. And that the entire community has to put up with this. Definline may be tagged as experimental but defrecord, defprotocol, ... are marked as being in alpha stage. Does this prevents you from using them ? Those are mentioned in every book and are widely used. It would be crazy to break those by now. Makes a bit of difference when it comes to recommending features to people, don't you think? -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Softaddictslprefonta...@softaddicts.ca sent by ibisMail from my ipad! -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
2013/4/25 Softaddicts lprefonta...@softaddicts.ca May I suggest you an upgrade ? http://www.ehow.com/how_6949396_record-78-vinyl-records-cd.html Ah, a batch of fresh preaching from Mr. Defend Clojure/core At All Costs. Best Canadian export since Wayne Gretzky! -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do functions never get inlined by jvm?
There seems to be some rule that given sufficient time and enough participants, all threads deteriorate into an argument about the current state of clojure documentation and a huge post from Tim Daly regarding literate programming in 3...2...1... On Thu, Apr 25, 2013 at 2:23 PM, Gary Trakhman gary.trakh...@gmail.comwrote: Good vinyls are considered higher quality by audiophiles, because there are less stages in between the mastering and amplification. There is more potential of better performance. It can be considered a real-world case of inlining. On Thu, Apr 25, 2013 at 3:16 PM, Softaddicts lprefonta...@softaddicts.cawrote: May I suggest you an upgrade ? http://www.ehow.com/how_6949396_record-78-vinyl-records-cd.html 2013/4/25 Softaddicts lprefonta...@softaddicts.ca Of course my answer comes in total antagonism with your usual position about the bad state of the existing documentation which is incomplete, wrong, ... and so forth. Your reaction does not suprise me, your behavior is quite predictable. Like an old vinyl record with all these scratches being played over and over again. Nothing has changed w.r.t. Clojure/core's attitude towards documentation and making it easy for other people to contribute documentation improvements that are rapidly integrated instead of gathering dust in JIRA for many months. Why would I suddenly start singing praises to something that is broken and does not change? Sorry pal, someone has to periodically remind those in control of Clojure that we are exactly where we were years ago. And that the entire community has to put up with this. Definline may be tagged as experimental but defrecord, defprotocol, ... are marked as being in alpha stage. Does this prevents you from using them ? Those are mentioned in every book and are widely used. It would be crazy to break those by now. Makes a bit of difference when it comes to recommending features to people, don't you think? -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Softaddictslprefonta...@softaddicts.ca sent by ibisMail from my ipad! -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to
Re: Do functions never get inlined by jvm?
...0? :-) Tim Daly -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Do you know which language the clojure is written by?
Hi, Do you know which language the clojure is written by? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do you know which language the clojure is written by?
Java. But there is some clojure version written in ruby,python,c# and javascript. 2013/4/22 ljcppu...@gmail.com Hi, Do you know which language the clojure is written by? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- 庄晓丹 Email:killme2...@gmail.com xzhu...@avos.com Site: http://fnil.net Twitter: @killme2008 -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Do you know which language the clojure is written by?
2013/4/22 dennis zhuang killme2...@gmail.com But there is some clojure version written in ruby,python,c# and javascript. ClojureScript compiler is not implemented in JavaScript, it emits JavaScript but implemented in Clojure. Hopefully will be self-hosted one day! -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Something goofy you can do in Clojure.
This may look mildly surprising, and suggests one more thing *not* to ever do in production code: user= (+ .3 1.7) 2.1 user= :) Shouldn't be hard to figure out how to put a repl in a state where that expression will evaluate to that result. I'm sure mathematicians everywhere are deeply offended by the clojure reader now. :) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Something goofy you can do in Clojure.
What version are you running? As far as I know, .3 isn't even a valid representation for a number -- you'd have to write it as 0.3. So I'm not sure where you're running that code snippet such that you don't get an immediate error. On 1.5.1: = (+ 0.3 1.7) 2.0 That said, I think most programmers know that floating point representations of numbers are inexact. That's why, if you care about exactness, you should write: = (+ 0.3M 1.7M) 2.0M On Tue, Apr 9, 2013 at 1:53 AM, Cedric Greevey cgree...@gmail.com wrote: This may look mildly surprising, and suggests one more thing *not* to ever do in production code: user= (+ .3 1.7) 2.1 user= :) Shouldn't be hard to figure out how to put a repl in a state where that expression will evaluate to that result. I'm sure mathematicians everywhere are deeply offended by the clojure reader now. :) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Something goofy you can do in Clojure.
Hey Mark, don't get paranoid :)... this is all Cedric did! user= (def .3 0.4) #'user/.3 user= (+ .3 1.7) 2.1 Jim On 09/04/13 10:46, Mark Engelberg wrote: What version are you running? As far as I know, .3 isn't even a valid representation for a number -- you'd have to write it as 0.3. So I'm not sure where you're running that code snippet such that you don't get an immediate error. On 1.5.1: = (+ 0.3 1.7) 2.0 That said, I think most programmers know that floating point representations of numbers are inexact. That's why, if you care about exactness, you should write: = (+ 0.3M 1.7M) 2.0M On Tue, Apr 9, 2013 at 1:53 AM, Cedric Greevey cgree...@gmail.com mailto:cgree...@gmail.com wrote: This may look mildly surprising, and suggests one more thing *not* to ever do in production code: user= (+ .3 1.7) 2.1 user= :) Shouldn't be hard to figure out how to put a repl in a state where that expression will evaluate to that result. I'm sure mathematicians everywhere are deeply offended by the clojure reader now. :) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com mailto:clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com mailto:clojure%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com mailto:clojure%2bunsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Something goofy you can do in Clojure.
In Clojure 1.5.1: = (+ .3 1.7) CompilerException java.lang.RuntimeException: Unable to resolve symbol: .3 in this context, compiling:(NO_SOURCE_PATH:1:1) So the only way you can do this is if you def'd .3 before = (def .3 0.4) = (+ .3 1.7) 2.1 On Tuesday, April 9, 2013 10:53:06 AM UTC+2, Cedric Greevey wrote: This may look mildly surprising, and suggests one more thing *not* to ever do in production code: user= (+ .3 1.7) 2.1 user= :) Shouldn't be hard to figure out how to put a repl in a state where that expression will evaluate to that result. I'm sure mathematicians everywhere are deeply offended by the clojure reader now. :) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Something goofy you can do in Clojure.
Technically, this is a user error, since . (dot) is not a valid character inside user-defined symbols. Clojure does mostly take the stance that it is a sharp tool and you are allowed to cut yourself, should you really want to. See http://clojure.org/reader for reference, especially these two sentences : Symbols begin with a non-numeric character and can contain alphanumeric characters and *, +, !, -, _, and ? Symbols beginning or ending with '.' are reserved by Clojure. On 9 April 2013 11:51, Niels van Klaveren niels.vanklave...@gmail.comwrote: In Clojure 1.5.1: = (+ .3 1.7) CompilerException java.lang.RuntimeException: Unable to resolve symbol: .3 in this context, compiling:(NO_SOURCE_PATH:1:1) So the only way you can do this is if you def'd .3 before = (def .3 0.4) = (+ .3 1.7) 2.1 On Tuesday, April 9, 2013 10:53:06 AM UTC+2, Cedric Greevey wrote: This may look mildly surprising, and suggests one more thing *not* to ever do in production code: user= (+ .3 1.7) 2.1 user= :) Shouldn't be hard to figure out how to put a repl in a state where that expression will evaluate to that result. I'm sure mathematicians everywhere are deeply offended by the clojure reader now. :) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Something goofy you can do in Clojure.
Ah. That's pretty funny :) On Tue, Apr 9, 2013 at 2:48 AM, Jim foo.bar jimpil1...@gmail.com wrote: Hey Mark, don't get paranoid :)... this is all Cedric did! user= (def .3 0.4) #'user/.3 user= (+ .3 1.7) 2.1 Jim On 09/04/13 10:46, Mark Engelberg wrote: What version are you running? As far as I know, .3 isn't even a valid representation for a number -- you'd have to write it as 0.3. So I'm not sure where you're running that code snippet such that you don't get an immediate error. On 1.5.1: = (+ 0.3 1.7) 2.0 That said, I think most programmers know that floating point representations of numbers are inexact. That's why, if you care about exactness, you should write: = (+ 0.3M 1.7M) 2.0M On Tue, Apr 9, 2013 at 1:53 AM, Cedric Greevey cgree...@gmail.com wrote: This may look mildly surprising, and suggests one more thing *not* to ever do in production code: user= (+ .3 1.7) 2.1 user= :) Shouldn't be hard to figure out how to put a repl in a state where that expression will evaluate to that result. I'm sure mathematicians everywhere are deeply offended by the clojure reader now. :) -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: IMPORTANT: For Potential GSoC 2012 mentors, do this now please!
I'm also stuck on this. I see the My Dashboard link, but no list of projects. does someone need to accept me as a mentor first perhaps? On Tuesday, 10 April 2012 00:54:46 UTC+8, David Nolen wrote: You don't see a My Dashboard link? On Mon, Apr 9, 2012 at 12:52 PM, Phil Hagelberg ph...@hagelb.orgjavascript: wrote: On Mon, Apr 9, 2012 at 7:17 AM, David Nolen dnolen...@gmail.comjavascript: wrote: Yes apply to be a mentor - sorry it wasn't more clear - this could have been done at anytime. Also important DO NOT associate yourself with a proposal in Confluence - you MUST do this in Melange. Feeling a bit slow... I don't see any proposals listed for Clojure in Melange even though I've been accepted as a mentor: http://www.google-melange.com/gsoc/org/google/gsoc2012/clojure How does one associate themselves with a proposal? -Phil -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com javascript: For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: IMPORTANT: For Potential GSoC 2012 mentors, do this now please!
Hello, Mike, On Tue Apr 9 17:31 2013, Mikera wrote: I'm also stuck on this. I see the My Dashboard link, but no list of projects. does someone need to accept me as a mentor first perhaps? I got your mentorship application and you should be approved now as a mentor. I plan on writing some more detailed instructions for students and mentors in the next few days. I haven't yet had the chance to look around and figure out the Melange app. Sincerely, Daniel On Tuesday, 10 April 2012 00:54:46 UTC+8, David Nolen wrote: You don't see a My Dashboard link? On Mon, Apr 9, 2012 at 12:52 PM, Phil Hagelberg ph...@hagelb.orgjavascript: wrote: On Mon, Apr 9, 2012 at 7:17 AM, David Nolen dnolen...@gmail.comjavascript: wrote: Yes apply to be a mentor - sorry it wasn't more clear - this could have been done at anytime. Also important DO NOT associate yourself with a proposal in Confluence - you MUST do this in Melange. Feeling a bit slow... I don't see any proposals listed for Clojure in Melange even though I've been accepted as a mentor: http://www.google-melange.com/gsoc/org/google/gsoc2012/clojure How does one associate themselves with a proposal? -Phil -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com javascript: For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. signature.asc Description: Digital signature
Re: If there is no nil values, why do I get null pointer exception?
I would guess the NPE comes from the form (xml/emit-str
(xml/map-Element next-movie-as-map)), given that (conj nil nil) does
not throw.
Perhaps try to isolate the problem in a smaller chunk of code, and
then file a bug with the data.xml library?
On 21 March 2013 19:16, larry google groups lawrencecloj...@gmail.com wrote:
I am getting a null pointer exception in the line where I conj into the
vector. I added the pprint so I could see what was going on. I am confused
by the outcome:
(defn convert-json-to-xml [json-as-flat-maps]
(reduce
(fn [vector-of-strings next-movie-as-map]
(println next move as map: )
(println (pp/pprint next-movie-as-map))
(if (seq next-movie-as-map)
(conj vector-of-strings (xml/emit-str (xml/map-Element
next-movie-as-map)))
vector-of-strings))
[]
json-as-flat-maps))
The pprint is showing me this:
{:film_64209.9096316473 513e67e3c07f5dd74551,
:cast_member_64209.9096316473 5148c50dc07f5db4233a,
:title_64209.9096316473 Sound design,
:director ,
:runtime 5,
:movie-id 513e67e3c07f5dd74551,
:title Two Islands,
:thumb
https://s3.amazonaws.com/tribeca_cms_production/uploads/uploads/film/photo_1/513e67e3c07f5dd74551/small_TWO_ISLANDS_2_pubs.jpg;,
:categories [Documentary],
:youtube_url ,
:website_url ,
:name_64209.9096316473 Svante Colérus,
:description
Two Islands is film about two enormous waste dumps in New York City. The
first was once the largest dump in the world. The other, a cemetery of
unknowns, is still in use. Two Islands bluntly asks, what does the existence
of these two huge mountains of economic and social waste and rejected
surplus tell us about our civilization and the so-called richest nation in
the world? What kind of legacy will future archaeologists see?}
Any thoughts about what triggers a null pointer exception? I am using this
XML library:
http://clojure.github.com/data.xml/
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Re: If there is no nil values, why do I get null pointer exception?
Thank you.
I need to import this json and convert it to XML or CSV:
http://tribecafilm.com/api/xomo/films.json
I'm guessing that the problem is the nested vector of cast members, which
my project manager has asked me to flatten (I think she is planning work
with this in Microsoft Excel, eventually).
I start with rows like this:
;;
;; {
;;
Thumb_img_url:https:\/\/s3.amazonaws.com\/tribeca_cms_production\/uploads\/uploads\/film\/photo_1\/513a82d1c07f5d471377\/small_odayaka__1_PUBS.jpg,
;; website_url:,
;; director:,
;; large_img_url:null,
;; youtube_url:,
;; title:Odayaka,
;; runtime:100,
;; id:513a82d1c07f5d471377,
;; categories:[Drama],
;; description:The Great East Japan Earthquake has just
struck, the waters of the ensuing tsunami finally rolling back into the
sea. In the comparative safety of Tokyo, two wives and a child living in
the same apartment building have nothing to do but wait for their
husbands\u2019 return. Nobuteru Uchida finds a striking emotional core to
the shock of March 11, 2011, crafting a tender and intelligent narrative on
the internal effects of an unspeakable national tragedy.,
;; cast:
;; [
;; {
;; _id:513a82d1c07f5d471378,
;; film_id:513a82d1c07f5d471377,
;; name:Jo Keita,
;; Aya Saito,
;; title:Associate Producer
;; },
;; {
;; _id:513a82d1c07f5d471379,
;; film_id:513a82d1c07f5d471377,
;; name:Kiki Sugino,
;; Yukiko Shinohara,
;; Takeshi Yamamoto,
;; Ami Watanabe,
;; Yu Koyanagi,
;; Makiko Watanabe,
;; title:Cast
;; },
;; {
;; _id:513a82d1c07f5d47137a,
;; film_id:513a82d1c07f5d471377,
;; name:Shinichi Tsunoda,
;; title:Cinematographer
;; },
;; {
;; _id:513a82d1c07f5d47137b,
;; film_id:513a82d1c07f5d471377,
;; name:Jo Keita,
;; title:Composer
;; },
;; {
;; _id:513a82d1c07f5d47137c,
;; film_id:513a82d1c07f5d471377,
;; name:Nobuteru Uchida,
;; title:Director
;; },
;; {
;; _id:513a82d1c07f5d47137d,
;; film_id:513a82d1c07f5d471377,
;; name:Nobuteru Uchida,
;; title:Editor
;; },
;; {
;; _id:513a82d1c07f5d47137e,
;; film_id:513a82d1c07f5d471377,
;; name:Kousuke Ono,
;; title:Executive Producer
;; },
;; {
;; _id:513a82d1c07f5d47137f,
;; film_id:513a82d1c07f5d471377,
;; name:Kiki Sugino,
;; Eric Nyari,
;; title:Producer
;; },
;; {
;; _id:513a82d1c07f5d471380,
;; film_id:513a82d1c07f5d471377,
;; name:Nobuteru Uchida,
;; title:Screenwriter
;; }
;; ]
;; },
I flattened this by inventing keys for the nested cast members. But now my
different rows have different keys. I guess I should pad this so they all
have the same rows? Or maybe I've missed something obvious? Seems like I
shouldn't have to engage in ugly hacks for something this simple.
On Friday, March 22, 2013 11:37:31 AM UTC-4, Gary Verhaegen wrote:
I would guess the NPE comes from the form (xml/emit-str
(xml/map-Element next-movie-as-map)), given that (conj nil nil) does
not throw.
Perhaps try to isolate the problem in a smaller chunk of code, and
then file a bug with the data.xml library?
On 21 March 2013 19:16, larry google groups
lawrenc...@gmail.comjavascript:
wrote:
I am getting a null pointer exception in the line where I conj into the
vector. I added the pprint so I could see what was going on. I am
confused
by the outcome:
(defn convert-json-to-xml [json-as-flat-maps]
(reduce
(fn [vector-of-strings next-movie-as-map]
(println next move as map: )
(println (pp/pprint next-movie-as-map))
(if (seq next-movie-as-map)
(conj vector-of-strings (xml/emit-str (xml/map-Element
next-movie-as-map)))
vector-of-strings))
[]
json-as-flat-maps))
The pprint is showing me this:
{:film_64209.9096316473 513e67e3c07f5dd74551,
:cast_member_64209.9096316473 5148c50dc07f5db4233a,
:title_64209.9096316473 Sound design
Re: If there is no nil values, why do I get null pointer exception?
Hmm, maybe I simply nested the XML elements incorrectly (though
NullPointerException doesn't give much information about the real problem).
I eventually imported this URL:
http://tribecafilm.com/api/xomo/films.json
With this code:
(defn transform-cast-members-into-xml [cast-members-listed-in-a-vector]
(timbre/spy :debug return value of transform-cast-members-into-xml
(reduce
(fn [vector-of-xml-elements next-cast-member-as-map]
(conj vector-of-xml-elements (xml/element :cast-member {}
(xml/element
:film-id {} (get next-cast-member-as-map film_id))
(xml/element
:cast-member-name {} (get next-cast-member-as-map name))
(xml/element
:cast-member-title {} (get next-cast-member-as-map title)
[]
cast-members-listed-in-a-vector)))
(defn transform-movie-json-to-vector-of-xml-elements [json-to-convert]
(timbre/spy :debug return value of
transform-movie-json-to-vector-of-xml-elements
(reduce
(fn [vector-of-xml-elements next-json-map]
(if (seq next-json-map)
(conj vector-of-xml-elements (xml/element :movie {}
(xml/element
:thumb_img_url {} (get next-json-map Thumb_img_url))
(xml/element
:website_url {} (get next-json-map website_url))
(xml/element
:director {} (get next-json-map director))
(xml/element
:youtube_url {} (get next-json-map youtube_url))
(xml/element
:title {} (get next-json-map title))
(xml/element
:runtime {} (get next-json-map runtime))
(xml/element
:_id {} (get next-json-map _id))
(xml/element
:categories {} (st/join , (get next-json-map categories)))
(xml/element
:description {} (get next-json-map description))
(xml/element
:cast {} (transform-cast-members-into-xml (get next-json-map cast)
vector-of-xml-elements))
[]
json-to-convert)))
(defn json-to-xml [request]
(let [string-to-convert (slurp
http://tribecafilm.com/api/xomo/films.json;)
json-to-convert (json/read-str string-to-convert)
vector-of-xml-elements
(transform-movie-json-to-vector-of-xml-elements json-to-convert)
final-xml-element (xml/element :movies {} vector-of-xml-elements)
page-string (xml/emit-str final-xml-element)
response-headers {:status 200
:headers {Content-Type text/plain}
:body page-string }]
response-headers))
On Friday, March 22, 2013 12:02:25 PM UTC-4, larry google groups wrote:
Thank you.
I need to import this json and convert it to XML or CSV:
http://tribecafilm.com/api/xomo/films.json
I'm guessing that the problem is the nested vector of cast members, which
my project manager has asked me to flatten (I think she is planning work
with this in Microsoft Excel, eventually).
I start with rows like this:
;;
;; {
;; Thumb_img_url:https:\/\/s3.amazonaws.com
\/tribeca_cms_production\/uploads\/uploads\/film\/photo_1\/513a82d1c07f5d471377\/small_odayaka__1_PUBS.jpg,
;; website_url:,
;; director:,
;; large_img_url:null,
;; youtube_url:,
;; title:Odayaka,
;; runtime:100,
;; id:513a82d1c07f5d471377,
;; categories:[Drama],
;; description:The Great East Japan Earthquake has just
struck, the waters of the ensuing tsunami finally rolling back into the
sea. In the comparative safety of Tokyo, two wives and a child living in
the same apartment building have nothing to do but wait for their
husbands\u2019 return. Nobuteru Uchida finds a striking emotional core to
the shock of March 11, 2011, crafting a tender and intelligent narrative on
the internal effects of an unspeakable national tragedy.,
;; cast:
;; [
;; {
;; _id:513a82d1c07f5d471378,
;; film_id:513a82d1c07f5d471377,
;; name:Jo Keita,
;; Aya Saito,
;; title:Associate Producer
;; },
;; {
;; _id:513a82d1c07f5d471379
If there is no nil values, why do I get null pointer exception?
I am getting a null pointer exception in the line where I conj into the
vector. I added the pprint so I could see what was going on. I am confused
by the outcome:
(defn convert-json-to-xml [json-as-flat-maps]
(reduce
(fn [vector-of-strings next-movie-as-map]
(println next move as map: )
(println (pp/pprint next-movie-as-map))
(if (seq next-movie-as-map)
(conj vector-of-strings (xml/emit-str (xml/map-Element
next-movie-as-map)))
vector-of-strings))
[]
json-as-flat-maps))
The pprint is showing me this:
{:film_64209.9096316473 513e67e3c07f5dd74551,
:cast_member_64209.9096316473 5148c50dc07f5db4233a,
:title_64209.9096316473 Sound design,
:director ,
:runtime 5,
:movie-id 513e67e3c07f5dd74551,
:title Two Islands,
:thumb
https://s3.amazonaws.com/tribeca_cms_production/uploads/uploads/film/photo_1/513e67e3c07f5dd74551/small_TWO_ISLANDS_2_pubs.jpg;,
:categories [Documentary],
:youtube_url ,
:website_url ,
:name_64209.9096316473 Svante Colérus,
:description
Two Islands is film about two enormous waste dumps in New York City. The
first was once the largest dump in the world. The other, a cemetery of
unknowns, is still in use. Two Islands bluntly asks, what does the
existence of these two huge mountains of economic and social waste and
rejected surplus tell us about our civilization and the so-called richest
nation in the world? What kind of legacy will future archaeologists see?}
Any thoughts about what triggers a null pointer exception? I am using this
XML library:
http://clojure.github.com/data.xml/
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Re: how do I find an IO exception triggering retries in clj-http?
Might be a silly suggestion but are the first 3 connections leading to
redirects (30x's) ???
Interesting idea. I will check. You are thinking that I should:
{http.protocol.allow-circular-redirects false
yes?
On Mar 5, 2:39 am, Marc Boschma marc.bosc...@gmail.com wrote:
Might be a silly suggestion but are the first 3 connections leading to
redirects (30x's) ???
On 05/03/2013, at 10:18 AM, larry google groups lawrencecloj...@gmail.com
wrote:
So, thanks to Michael Klishin, Aaron Cohen, Frank Siebenlist and Craig
Brozefsky I am now able to correctly ping the Omniture API. But I am
getting a strange behavior from the clj-http library. It makes 4 calls
to the API server, even though the first call is successful.
When I look here:
https://github.com/dakrone/clj-http
I see it says:
;; Apache's http client automatically retries on IOExceptions, if you
;; would like to handle these retries yourself, you can specify a
;; :retry-handler.
So, since it re-tries, I should assume that it is encountering an
IOException. But I get a successful response on the first try, so what
would the IOException be?
Because clj-http uses Slingshot, I have wrapped it in a try+ / catch
Object o block. And I print the o to the terminal, and yet I am not
seeing anything in the terminal. So where is the IOException? How do I
find it?
This is the actual function I use to ping the Omniture API:
(defn omniture-call-api [url-with-queue-method api-payload headers]
(timbre/spy :debug return value of omniture-call-api
(try+
(http-client/post url-with-queue-method
{:body api-payload
:debug true
:debug-body true
:insecure true
:headers {X-Api-Version 2
X-WSSE headers}
:content-type :json
:socket-timeout 4000
:conn-timeout 4000
:accept :json
:client-params
{http.protocol.allow-circular-redirects true
http.useragent
clj-http}})
(catch Object o (println (pp/pprint o))
If there is an IOException, why doesn't this line catch it?
(catch Object o (println (pp/pprint o))
I read here that catch Object o is the correct way to catch
everything, using Slingshot:
https://github.com/scgilardi/slingshot/issues/24
So why would I not see this error?
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Re: how do I find an IO exception triggering retries in clj-http?
As near as I can see, the 1st request is successful, and then the next
3 return with 401 errors, plus the message The nonce has already been
used. Clearly, the 2nd, 3rd and 4th attempts should fail, because
they are re-using the nonce that was already used in the first
request, and a nonce can only be used once. So it makes sense that
they would get a 401 error, but it makes no sense that they would ever
get called at all, because why would the code re-try if there was no
IOException.
One of the requests returns with a 200 status:
{:trace-redirects [https://api2.omniture.com/admin/1.3/rest/?
method=Report.QueueOvertime], :request-time 1658, :status
200, :headers {date Mon, 04 Mar 2013 21:23:44 GMT, server
Omniture AWS/2.0.0, vary Accept-Encoding, content-encoding
gzip, xserver www322, content-length 83, content-type
application/json, connection close}, :body {\status\:\queued
\,\statusMsg\:\Your report has been queued\,\reportID\:xxx}}
I assume this is the first request, because if it wasn't then it would
get the error This nonce has already been used. And why would the
later requests get the 401 error This nonce has already been used
unless the first request had succeeded?
My understanding is the code will retry up to 4 times if it encounters
an IOException. But in my case it seems to be retrying even though
here was no IOException.
Maybe this is some kind of timing issue?
On Mar 5, 10:50 am, larry google groups lawrencecloj...@gmail.com
wrote:
Might be a silly suggestion but are the first 3 connections leading to
redirects (30x's) ???
Interesting idea. I will check. You are thinking that I should:
{http.protocol.allow-circular-redirects false
yes?
On Mar 5, 2:39 am, Marc Boschma marc.bosc...@gmail.com wrote:
Might be a silly suggestion but are the first 3 connections leading to
redirects (30x's) ???
On 05/03/2013, at 10:18 AM, larry google groups lawrencecloj...@gmail.com
wrote:
So, thanks to Michael Klishin, Aaron Cohen, Frank Siebenlist and Craig
Brozefsky I am now able to correctly ping the Omniture API. But I am
getting a strange behavior from the clj-http library. It makes 4 calls
to the API server, even though the first call is successful.
When I look here:
https://github.com/dakrone/clj-http
I see it says:
;; Apache's http client automatically retries on IOExceptions, if you
;; would like to handle these retries yourself, you can specify a
;; :retry-handler.
So, since it re-tries, I should assume that it is encountering an
IOException. But I get a successful response on the first try, so what
would the IOException be?
Because clj-http uses Slingshot, I have wrapped it in a try+ / catch
Object o block. And I print the o to the terminal, and yet I am not
seeing anything in the terminal. So where is the IOException? How do I
find it?
This is the actual function I use to ping the Omniture API:
(defn omniture-call-api [url-with-queue-method api-payload headers]
(timbre/spy :debug return value of omniture-call-api
(try+
(http-client/post url-with-queue-method
{:body api-payload
:debug true
:debug-body true
:insecure true
:headers {X-Api-Version 2
X-WSSE headers}
:content-type :json
:socket-timeout 4000
:conn-timeout 4000
:accept :json
:client-params
{http.protocol.allow-circular-redirects true
http.useragent
clj-http}})
(catch Object o (println (pp/pprint o))
If there is an IOException, why doesn't this line catch it?
(catch Object o (println (pp/pprint o))
I read here that catch Object o is the correct way to catch
everything, using Slingshot:
https://github.com/scgilardi/slingshot/issues/24
So why would I not see this error?
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Re: how do I find an IO exception triggering retries in clj-http?
Hi, silly question are you using the call in a sequence pipeline with pmap or mapcat or the like? Or does clj-http that under the covers? Kind regards Meikel -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how do I find an IO exception triggering retries in clj-http?
silly question are you using the call in a sequence pipeline with pmap or mapcat or the like? Or does clj-http that under the covers? Those are good questions. Until I get this working I have been doing the simplest thing possible, which is simply starting the app, and then having the app make the call to Omniture as one of the first things it does on startup. I will dig into clj-http to see what it is doing under the covers. I am curious, do you have a suspicion about something? A theory? On Mar 5, 11:17 am, Meikel Brandmeyer (kotarak) m...@kotka.de wrote: Hi, silly question are you using the call in a sequence pipeline with pmap or mapcat or the like? Or does clj-http that under the covers? Kind regards Meikel -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how do I find an IO exception triggering retries in clj-http?
This is strange. An IOException is thrown, but it seems to do with
with the retry, which should never exist in the first place, unless an
IOException has been thrown:
clj-http has thrown this exception:
{:trace-redirects
[https://api2.omniture.com/admin/1.3/rest/?
method=Report.QueueOvertime],
:request-time 885,
:status 401,
:headers
{date Tue, 05 Mar 2013 19:14:46 GMT,
server Omniture AWS/2.0.0,
www-authenticate
WSSE realm=\Omniture REST Api\, profile=\UsernameToken\,
xserver www811,
content-length 90,
content-type application/json,
connection close},
:body
{\error\:\The nonce
(NGQ1ODc4NmU3M2QyY2I5MmIyOTIzOWFiN2Q4ODc1NjQ=) has already been used
\}}
On Mar 5, 12:45 pm, larry google groups lawrencecloj...@gmail.com
wrote:
silly question are you using the call in a sequence pipeline with pmap or
mapcat or the like? Or does clj-http that under the covers?
Those are good questions. Until I get this working I have been doing
the simplest thing possible, which is simply starting the app, and
then having the app make the call to Omniture as one of the first
things it does on startup.
I will dig into clj-http to see what it is doing under the covers.
I am curious, do you have a suspicion about something? A theory?
On Mar 5, 11:17 am, Meikel Brandmeyer (kotarak) m...@kotka.de
wrote:
Hi,
silly question are you using the call in a sequence pipeline with pmap or
mapcat or the like? Or does clj-http that under the covers?
Kind regards
Meikel
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Re: how do I find an IO exception triggering retries in clj-http?
Out of frustration, I have decided to surpress the re-tries. This
worries me -- I hate to bury a problem without understanding it. But
the retries are burying the actual queries. This page:
https://github.com/dakrone/clj-http
says:
;; Apache's http client automatically retries on IOExceptions, if you
;; would like to handle these retries yourself, you can specify a
;; :retry-handler. Return true to retry, false to stop trying:
(client/post http://example.org; {:multipart [[title Foo]
[Content/type text/
plain]
[file (clojure.java.io/file /tmp/missing-file)]]
:retry-handler (fn [ex try-count
http-context]
(println Got:
ex)
(if ( try-count
4) false true))})
So I have re-written my function so that the re-tries are always
suppressed:
(defn omniture-call-api [url-with-queue-method api-payload headers]
(timbre/spy :debug return value of omniture-call-api
(try+
(http-client/post url-with-queue-method
{:body api-payload
:debug true
:debug-body true
:insecure true
:headers {X-Api-Version 2
X-WSSE headers}
:content-type :json
:socket-timeout 4000
:conn-timeout 4000
:accept :json
:client-params
{http.protocol.allow-circular-redirects false
http.useragent
clj-http}
:retry-handler (fn [ex try-count
http-context]
false)
})
(catch Object o (catch-clj-http-exceptions o)
I will have to come back to this later, when I have more time, and try
to figure out what is going wrong.
On Mar 5, 2:19 pm, larry google groups lawrencecloj...@gmail.com
wrote:
This is strange. An IOException is thrown, but it seems to do with
with the retry, which should never exist in the first place, unless an
IOException has been thrown:
clj-http has thrown this exception:
{:trace-redirects
[https://api2.omniture.com/admin/1.3/rest/?
method=Report.QueueOvertime],
:request-time 885,
:status 401,
:headers
{date Tue, 05 Mar 2013 19:14:46 GMT,
server Omniture AWS/2.0.0,
www-authenticate
WSSE realm=\Omniture REST Api\, profile=\UsernameToken\,
xserver www811,
content-length 90,
content-type application/json,
connection close},
:body
{\error\:\The nonce
(NGQ1ODc4NmU3M2QyY2I5MmIyOTIzOWFiN2Q4ODc1NjQ=) has already been used
\}}
On Mar 5, 12:45 pm, larry google groups lawrencecloj...@gmail.com
wrote:
silly question are you using the call in a sequence pipeline with pmap or
mapcat or the like? Or does clj-http that under the covers?
Those are good questions. Until I get this working I have been doing
the simplest thing possible, which is simply starting the app, and
then having the app make the call to Omniture as one of the first
things it does on startup.
I will dig into clj-http to see what it is doing under the covers.
I am curious, do you have a suspicion about something? A theory?
On Mar 5, 11:17 am, Meikel Brandmeyer (kotarak) m...@kotka.de
wrote:
Hi,
silly question are you using the call in a sequence pipeline with pmap or
mapcat or the like? Or does clj-http that under the covers?
Kind regards
Meikel
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Re: how do I find an IO exception triggering retries in clj-http?
I look here:
https://github.com/dakrone/clj-http/issues/45
and I see the original reasoning for :trace-redirects
add a key like :trace-redirects in the response containing the
ordered list of traversed uris. This would allow clients to know what
was the final uri fetched more easily than now (I think the only way
is to set :save-request? and check the url inside the req). It could
also be very useful for caching purpose (knowing all the uris which
are equivalent to the terminal one).
The README says: :trace-redirects will contain the chain of the
redirections followed.
But in my case, I don't think I'm getting redirected. My :trace-
redirects only has 1 URL, and it is the URL that I POSTed to.
[:trace-redirects [https://api2.omniture.com/admin/1.3/rest/?
method=Report.QueueOvertime]] [:request-time 1601][:status 200]
[:headers {date Tue, 05 Mar 2013 19:57:24 GMT, server Omniture
AWS/2.0.0, vary Accept-Encoding, content-encoding gzip,
xserver www503, content-length 83, content-type application/
json, connection close}][:body {\status\:\queued\,\statusMsg
\:\Your report has been queued\,\reportID\:83928267}]
Maybe the POST gets redirected to something with the same URL? The
status I see is 200, not 301 or 302.
On Mar 5, 2:33 pm, larry google groups lawrencecloj...@gmail.com
wrote:
Out of frustration, I have decided to surpress the re-tries. This
worries me -- I hate to bury a problem without understanding it. But
the retries are burying the actual queries. This page:
https://github.com/dakrone/clj-http
says:
;; Apache's http client automatically retries on IOExceptions, if you
;; would like to handle these retries yourself, you can specify a
;; :retry-handler. Return true to retry, false to stop trying:
(client/post http://example.org; {:multipart [[title Foo]
[Content/type text/
plain]
[file (clojure.java.io/file /tmp/missing-file)]]
:retry-handler (fn [ex try-count
http-context]
(println Got:
ex)
(if ( try-count
4) false true))})
So I have re-written my function so that the re-tries are always
suppressed:
(defn omniture-call-api [url-with-queue-method api-payload headers]
(timbre/spy :debug return value of omniture-call-api
(try+
(http-client/post url-with-queue-method
{:body api-payload
:debug true
:debug-body true
:insecure true
:headers {X-Api-Version 2
X-WSSE headers}
:content-type :json
:socket-timeout 4000
:conn-timeout 4000
:accept :json
:client-params
{http.protocol.allow-circular-redirects false
http.useragent
clj-http}
:retry-handler (fn [ex try-count
http-context]
false)
})
(catch Object o (catch-clj-http-exceptions o)
I will have to come back to this later, when I have more time, and try
to figure out what is going wrong.
On Mar 5, 2:19 pm, larry google groups lawrencecloj...@gmail.com
wrote:
This is strange. An IOException is thrown, but it seems to do with
with the retry, which should never exist in the first place, unless an
IOException has been thrown:
clj-http has thrown this exception:
{:trace-redirects
[https://api2.omniture.com/admin/1.3/rest/?
method=Report.QueueOvertime],
:request-time 885,
:status 401,
:headers
{date Tue, 05 Mar 2013 19:14:46 GMT,
server Omniture AWS/2.0.0,
www-authenticate
WSSE realm=\Omniture REST Api\, profile=\UsernameToken\,
xserver www811,
content-length 90,
content-type application/json,
connection close},
:body
{\error\:\The nonce
(NGQ1ODc4NmU3M2QyY2I5MmIyOTIzOWFiN2Q4ODc1NjQ=) has already been used
\}}
On Mar 5, 12:45 pm, larry google groups lawrencecloj...@gmail.com
wrote:
silly question are you using the call in a sequence pipeline with pmap
or
mapcat or the like? Or does clj-http that under the covers?
Those are good questions. Until I get this working I have been doing
the simplest thing possible, which is simply starting the app, and
then having the app make the call to Omniture as one of the first
things it does on startup.
I will dig into clj-http to see what it is doing under the covers.
I am curious, do you have a suspicion about something? A theory?
On Mar 5, 11:17 am
why do I get Null pointer on this GMT SimpleDateFormat?
I need to get a GMT date. I found this page on StackOverflow: http://stackoverflow.com/questions/308683/how-can-i-get-the-current-date-and-time-in-utc-or-gmt-in-java It gives this example: SimpleDateFormat dateFormatGmt = new SimpleDateFormat(-MMM-dd HH:mm:ss); dateFormatGmt.setTimeZone(TimeZone.getTimeZone(GMT)); I thought I was following it closely with (this is inside of a (let) statement): date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) gmt-timezone (TimeZone/getTimeZone GMT) date-formatter-set-to-gmt-time (.setTimeZone date-formatter gmt- timezone) created (.format date-formatter-set-to-gmt-time (new Date)) but this line: created (.format date-formatter-set-to-gmt-time (new Date)) gives me: java.lang.NullPointerException: null Reflector.java:26 clojure.lang.Reflector.invokeInstanceMethod omniture.clj:52 mpdv-clojure.omniture/omniture-make-headers- for-api-call Can anyone tell me why? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: why do I get Null pointer on this GMT SimpleDateFormat?
You've assigned to date-formatter-set-to-gmt-time the return value from the setTimeZone method call. This method returns null, hence the null pointer exception when you try to call the format method. 'doto' might help here, like: (let [gmt-date-formatter (doto (SimpleDateFormat. -MMM-dd HH:mm:ss) (.setTimeZone (TimeZone/getTimeZone GMT)))] (.format gmt-date-formatter (Date.))) On 4 March 2013 16:50, larry google groups lawrencecloj...@gmail.com wrote: I need to get a GMT date. I found this page on StackOverflow: http://stackoverflow.com/questions/308683/how-can-i-get-the-current-date-and-time-in-utc-or-gmt-in-java It gives this example: SimpleDateFormat dateFormatGmt = new SimpleDateFormat(-MMM-dd HH:mm:ss); dateFormatGmt.setTimeZone(TimeZone.getTimeZone(GMT)); I thought I was following it closely with (this is inside of a (let) statement): date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) gmt-timezone (TimeZone/getTimeZone GMT) date-formatter-set-to-gmt-time (.setTimeZone date-formatter gmt- timezone) created (.format date-formatter-set-to-gmt-time (new Date)) but this line: created (.format date-formatter-set-to-gmt-time (new Date)) gives me: java.lang.NullPointerException: null Reflector.java:26 clojure.lang.Reflector.invokeInstanceMethod omniture.clj:52 mpdv-clojure.omniture/omniture-make-headers- for-api-call Can anyone tell me why? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: why do I get Null pointer on this GMT SimpleDateFormat?
Thank you. That is very helpful. On Mar 4, 3:17 pm, Ray Miller r...@1729.org.uk wrote: You've assigned to date-formatter-set-to-gmt-time the return value from the setTimeZone method call. This method returns null, hence the null pointer exception when you try to call the format method. 'doto' might help here, like: (let [gmt-date-formatter (doto (SimpleDateFormat. -MMM-dd HH:mm:ss) (.setTimeZone (TimeZone/getTimeZone GMT)))] (.format gmt-date-formatter (Date.))) On 4 March 2013 16:50, larry google groups lawrencecloj...@gmail.com wrote: I need to get a GMT date. I found this page on StackOverflow: http://stackoverflow.com/questions/308683/how-can-i-get-the-current-d... It gives this example: SimpleDateFormat dateFormatGmt = new SimpleDateFormat(-MMM-dd HH:mm:ss); dateFormatGmt.setTimeZone(TimeZone.getTimeZone(GMT)); I thought I was following it closely with (this is inside of a (let) statement): date-formatter (new SimpleDateFormat -MM-dd'T'HH:mm:ss) gmt-timezone (TimeZone/getTimeZone GMT) date-formatter-set-to-gmt-time (.setTimeZone date-formatter gmt- timezone) created (.format date-formatter-set-to-gmt-time (new Date)) but this line: created (.format date-formatter-set-to-gmt-time (new Date)) gives me: java.lang.NullPointerException: null Reflector.java:26 clojure.lang.Reflector.invokeInstanceMethod omniture.clj:52 mpdv-clojure.omniture/omniture-make-headers- for-api-call Can anyone tell me why? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visithttps://groups.google.com/groups/opt_out. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
how do I find an IO exception triggering retries in clj-http?
So, thanks to Michael Klishin, Aaron Cohen, Frank Siebenlist and Craig
Brozefsky I am now able to correctly ping the Omniture API. But I am
getting a strange behavior from the clj-http library. It makes 4 calls
to the API server, even though the first call is successful.
When I look here:
https://github.com/dakrone/clj-http
I see it says:
;; Apache's http client automatically retries on IOExceptions, if you
;; would like to handle these retries yourself, you can specify a
;; :retry-handler.
So, since it re-tries, I should assume that it is encountering an
IOException. But I get a successful response on the first try, so what
would the IOException be?
Because clj-http uses Slingshot, I have wrapped it in a try+ / catch
Object o block. And I print the o to the terminal, and yet I am not
seeing anything in the terminal. So where is the IOException? How do I
find it?
This is the actual function I use to ping the Omniture API:
(defn omniture-call-api [url-with-queue-method api-payload headers]
(timbre/spy :debug return value of omniture-call-api
(try+
(http-client/post url-with-queue-method
{:body api-payload
:debug true
:debug-body true
:insecure true
:headers {X-Api-Version 2
X-WSSE headers}
:content-type :json
:socket-timeout 4000
:conn-timeout 4000
:accept :json
:client-params
{http.protocol.allow-circular-redirects true
http.useragent
clj-http}})
(catch Object o (println (pp/pprint o))
If there is an IOException, why doesn't this line catch it?
(catch Object o (println (pp/pprint o))
I read here that catch Object o is the correct way to catch
everything, using Slingshot:
https://github.com/scgilardi/slingshot/issues/24
So why would I not see this error?
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Re: how do I find an IO exception triggering retries in clj-http?
Might be a silly suggestion but are the first 3 connections leading to
redirects (30x's) ???
On 05/03/2013, at 10:18 AM, larry google groups lawrencecloj...@gmail.com
wrote:
So, thanks to Michael Klishin, Aaron Cohen, Frank Siebenlist and Craig
Brozefsky I am now able to correctly ping the Omniture API. But I am
getting a strange behavior from the clj-http library. It makes 4 calls
to the API server, even though the first call is successful.
When I look here:
https://github.com/dakrone/clj-http
I see it says:
;; Apache's http client automatically retries on IOExceptions, if you
;; would like to handle these retries yourself, you can specify a
;; :retry-handler.
So, since it re-tries, I should assume that it is encountering an
IOException. But I get a successful response on the first try, so what
would the IOException be?
Because clj-http uses Slingshot, I have wrapped it in a try+ / catch
Object o block. And I print the o to the terminal, and yet I am not
seeing anything in the terminal. So where is the IOException? How do I
find it?
This is the actual function I use to ping the Omniture API:
(defn omniture-call-api [url-with-queue-method api-payload headers]
(timbre/spy :debug return value of omniture-call-api
(try+
(http-client/post url-with-queue-method
{:body api-payload
:debug true
:debug-body true
:insecure true
:headers {X-Api-Version 2
X-WSSE headers}
:content-type :json
:socket-timeout 4000
:conn-timeout 4000
:accept :json
:client-params
{http.protocol.allow-circular-redirects true
http.useragent
clj-http}})
(catch Object o (println (pp/pprint o))
If there is an IOException, why doesn't this line catch it?
(catch Object o (println (pp/pprint o))
I read here that catch Object o is the correct way to catch
everything, using Slingshot:
https://github.com/scgilardi/slingshot/issues/24
So why would I not see this error?
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Why is java.io/do-copy defined private
Hi, I implemented (defmethod (var-get #'io/do-copy) [Path Path] [#^Path input #^Path output opts] ...) for fast NIO2 io, but had to do the var-get workaround because do-copy is defined private. Jürgen -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
how do I include a single class file from someone else's library?
I am ignorant of the JVM, and of Java, so I am sure this is a dumb question. I need to post to the Omniture API. They offer some sample code here: https://developer.omniture.com/en_US/blog/calling-rest-api-in-java That code depends on a Base64Coder class which they offer in a zip file. I downloaded it and did: javac Base64Coder.java and this gave me Base64Coder.class. I created my project with Leinengen2. I thought maybe I could just copy Base64Coder.class to the target/classes folder, but then how would I reference it in my code? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how do I include a single class file from someone else's library?
When I just do something obvious, like in mpdv.core: (ns mpdv.core (:gen-class) (:import (Base64Coder)) and then call its static methods I get: Exception in thread main java.lang.NoClassDefFoundError: Base64Coder (wrong name: com/omniture/security/Base64Coder), compiling:(mpdv/core.clj:130) On Friday, February 22, 2013 4:18:00 PM UTC-5, larry google groups wrote: I am ignorant of the JVM, and of Java, so I am sure this is a dumb question. I need to post to the Omniture API. They offer some sample code here: https://developer.omniture.com/en_US/blog/calling-rest-api-in-java That code depends on a Base64Coder class which they offer in a zip file. I downloaded it and did: javac Base64Coder.java and this gave me Base64Coder.class. I created my project with Leinengen2. I thought maybe I could just copy Base64Coder.class to the target/classes folder, but then how would I reference it in my code? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: Why is java.io/do-copy defined private
Hi Jürgen, Things are declared :private usually because the author of the library didn't want to commit to a public API function in future releases. The var-get trick works fine (you can also write @#'io/do-copy) but there's no promise that `do-copy` will stay the same between releases. As long as you're aware that your code might be broken by a future release, there's no reason not to extend it as you did. Since Clojure is designed to be compatible with JDK 1.5, it doesn't use NIO2 anywhere. Perhaps conditional compilation (a possible feature for Clojure 1.6) will make it possible to support newer JDK features like NIO2. -S On Friday, February 22, 2013 12:23:27 PM UTC-5, Jürgen Hötzel wrote: Hi, I implemented (defmethod (var-get #'io/do-copy) [Path Path] [#^Path input #^Path output opts] ...) for fast NIO2 io, but had to do the var-get workaround because do-copy is defined private. Jürgen -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how do I include a single class file from someone else's library?
Ah, I see. This is a polygot project, which Leiningen describes here: https://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md That worked for me. Leiningen saves the day again. On Friday, February 22, 2013 4:25:04 PM UTC-5, larry google groups wrote: When I just do something obvious, like in mpdv.core: (ns mpdv.core (:gen-class) (:import (Base64Coder)) and then call its static methods I get: Exception in thread main java.lang.NoClassDefFoundError: Base64Coder (wrong name: com/omniture/security/Base64Coder), compiling:(mpdv/core.clj:130) On Friday, February 22, 2013 4:18:00 PM UTC-5, larry google groups wrote: I am ignorant of the JVM, and of Java, so I am sure this is a dumb question. I need to post to the Omniture API. They offer some sample code here: https://developer.omniture.com/en_US/blog/calling-rest-api-in-java That code depends on a Base64Coder class which they offer in a zip file. I downloaded it and did: javac Base64Coder.java and this gave me Base64Coder.class. I created my project with Leinengen2. I thought maybe I could just copy Base64Coder.class to the target/classes folder, but then how would I reference it in my code? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how do I include a single class file from someone else's library?
Maybe I spoke too soon. I have now stepped into the Twilight Zone. Changes I make to files do not get built when a try to run lein. Just to get some kind of reaction from Leinengen I just put random garbage in the ns clause of my core.clj: (ns lkjlkljlkjlkj mpdv.core (:gen-class) (:import (java.net URL URLConnection) (java.io ByteArrayInputStream BufferedReader IOException InputStream InputStreamReader OutputStreamWriter UnsupportedEncodingException) (java.text SimpleDateFormat) (java.util Date) (java.security MessageDigest) (org.apache.commons.mail SimpleEmail HtmlEmail) (org.joda.time.format DateTimeFormat ISODateTimeFormat) (Base64Coder) (lkjlkjlkjoiuoiu)) This should have caused an error, but instead, when I did lein uberjar everything compiled -- but compiled without any of the changes I've made during the last 30 minutes. In the terminal, from the same terminal that I run lein uberjar I can run: cat src/mpdv/core.clj and I see my changes, including the random garbage that I just wrote, but somehow, if I then type lein uberjar lein does not see it. I do not know if this issue is related, but following the advice about polygots, given here: https://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md I added this to my project.clj file: :source-paths [src/mpdv] :java-source-paths [src/java] Did I do something wrong here? Why is Leinengen still compiling, even though the source code is full of garbage? On Friday, February 22, 2013 5:01:15 PM UTC-5, larry google groups wrote: Ah, I see. This is a polygot project, which Leiningen describes here: https://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md That worked for me. Leiningen saves the day again. On Friday, February 22, 2013 4:25:04 PM UTC-5, larry google groups wrote: When I just do something obvious, like in mpdv.core: (ns mpdv.core (:gen-class) (:import (Base64Coder)) and then call its static methods I get: Exception in thread main java.lang.NoClassDefFoundError: Base64Coder (wrong name: com/omniture/security/Base64Coder), compiling:(mpdv/core.clj:130) On Friday, February 22, 2013 4:18:00 PM UTC-5, larry google groups wrote: I am ignorant of the JVM, and of Java, so I am sure this is a dumb question. I need to post to the Omniture API. They offer some sample code here: https://developer.omniture.com/en_US/blog/calling-rest-api-in-java That code depends on a Base64Coder class which they offer in a zip file. I downloaded it and did: javac Base64Coder.java and this gave me Base64Coder.class. I created my project with Leinengen2. I thought maybe I could just copy Base64Coder.class to the target/classes folder, but then how would I reference it in my code? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how do I include a single class file from someone else's library?
I see this sentence: Having one source root contain another (e.g. src and src/java) can cause obscure problems. but I have: src/ java/ mpdv/ Which I assume is what Leinengen is asking for. On Friday, February 22, 2013 5:23:28 PM UTC-5, larry google groups wrote: Maybe I spoke too soon. I have now stepped into the Twilight Zone. Changes I make to files do not get built when a try to run lein. Just to get some kind of reaction from Leinengen I just put random garbage in the ns clause of my core.clj: (ns lkjlkljlkjlkj mpdv.core (:gen-class) (:import (java.net URL URLConnection) (java.io ByteArrayInputStream BufferedReader IOException InputStream InputStreamReader OutputStreamWriter UnsupportedEncodingException) (java.text SimpleDateFormat) (java.util Date) (java.security MessageDigest) (org.apache.commons.mail SimpleEmail HtmlEmail) (org.joda.time.format DateTimeFormat ISODateTimeFormat) (Base64Coder) (lkjlkjlkjoiuoiu)) This should have caused an error, but instead, when I did lein uberjar everything compiled -- but compiled without any of the changes I've made during the last 30 minutes. In the terminal, from the same terminal that I run lein uberjar I can run: cat src/mpdv/core.clj and I see my changes, including the random garbage that I just wrote, but somehow, if I then type lein uberjar lein does not see it. I do not know if this issue is related, but following the advice about polygots, given here: https://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md I added this to my project.clj file: :source-paths [src/mpdv] :java-source-paths [src/java] Did I do something wrong here? Why is Leinengen still compiling, even though the source code is full of garbage? On Friday, February 22, 2013 5:01:15 PM UTC-5, larry google groups wrote: Ah, I see. This is a polygot project, which Leiningen describes here: https://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md That worked for me. Leiningen saves the day again. On Friday, February 22, 2013 4:25:04 PM UTC-5, larry google groups wrote: When I just do something obvious, like in mpdv.core: (ns mpdv.core (:gen-class) (:import (Base64Coder)) and then call its static methods I get: Exception in thread main java.lang.NoClassDefFoundError: Base64Coder (wrong name: com/omniture/security/Base64Coder), compiling:(mpdv/core.clj:130) On Friday, February 22, 2013 4:18:00 PM UTC-5, larry google groups wrote: I am ignorant of the JVM, and of Java, so I am sure this is a dumb question. I need to post to the Omniture API. They offer some sample code here: https://developer.omniture.com/en_US/blog/calling-rest-api-in-java That code depends on a Base64Coder class which they offer in a zip file. I downloaded it and did: javac Base64Coder.java and this gave me Base64Coder.class. I created my project with Leinengen2. I thought maybe I could just copy Base64Coder.class to the target/classes folder, but then how would I reference it in my code? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how do I include a single class file from someone else's library?
At least if I put random junk in the project.clj, Leinengen dies with an error: (defproject mpdv 0.1.0 :dependencies [[org.clojure/clojure 1.4.0] [ring 1.1.5] [ring/ring-jetty-adapter 1.1.5] [org.clojure/data.json 0.2.0] [org.clojure/java.jdbc 0.2.3] [mysql/mysql-connector-java 5.1.6] jlkjlkjlkjlkj [clj-yaml 0.4.0] [clj-time 0.4.4] lein uberjar nth not supported on this type: Symbol But otherwise, it is not seeing the changes I make to the code. On Friday, February 22, 2013 5:28:17 PM UTC-5, larry google groups wrote: I see this sentence: Having one source root contain another (e.g. src and src/java) can cause obscure problems. but I have: src/ java/ mpdv/ Which I assume is what Leinengen is asking for. On Friday, February 22, 2013 5:23:28 PM UTC-5, larry google groups wrote: Maybe I spoke too soon. I have now stepped into the Twilight Zone. Changes I make to files do not get built when a try to run lein. Just to get some kind of reaction from Leinengen I just put random garbage in the ns clause of my core.clj: (ns lkjlkljlkjlkj mpdv.core (:gen-class) (:import (java.net URL URLConnection) (java.io ByteArrayInputStream BufferedReader IOException InputStream InputStreamReader OutputStreamWriter UnsupportedEncodingException) (java.text SimpleDateFormat) (java.util Date) (java.security MessageDigest) (org.apache.commons.mail SimpleEmail HtmlEmail) (org.joda.time.format DateTimeFormat ISODateTimeFormat) (Base64Coder) (lkjlkjlkjoiuoiu)) This should have caused an error, but instead, when I did lein uberjar everything compiled -- but compiled without any of the changes I've made during the last 30 minutes. In the terminal, from the same terminal that I run lein uberjar I can run: cat src/mpdv/core.clj and I see my changes, including the random garbage that I just wrote, but somehow, if I then type lein uberjar lein does not see it. I do not know if this issue is related, but following the advice about polygots, given here: https://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md I added this to my project.clj file: :source-paths [src/mpdv] :java-source-paths [src/java] Did I do something wrong here? Why is Leinengen still compiling, even though the source code is full of garbage? On Friday, February 22, 2013 5:01:15 PM UTC-5, larry google groups wrote: Ah, I see. This is a polygot project, which Leiningen describes here: https://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md That worked for me. Leiningen saves the day again. On Friday, February 22, 2013 4:25:04 PM UTC-5, larry google groups wrote: When I just do something obvious, like in mpdv.core: (ns mpdv.core (:gen-class) (:import (Base64Coder)) and then call its static methods I get: Exception in thread main java.lang.NoClassDefFoundError: Base64Coder (wrong name: com/omniture/security/Base64Coder), compiling:(mpdv/core.clj:130) On Friday, February 22, 2013 4:18:00 PM UTC-5, larry google groups wrote: I am ignorant of the JVM, and of Java, so I am sure this is a dumb question. I need to post to the Omniture API. They offer some sample code here: https://developer.omniture.com/en_US/blog/calling-rest-api-in-java That code depends on a Base64Coder class which they offer in a zip file. I downloaded it and did: javac Base64Coder.java and this gave me Base64Coder.class. I created my project with Leinengen2. I thought maybe I could just copy Base64Coder.class to the target/classes folder, but then how would I reference it in my code? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how do I include a single class file from someone else's library?
No, src is root for all Clojure. That means that your java root is under the Clojure root. Move java to top-level. On Friday, February 22, 2013 11:28:17 PM UTC+1, larry google groups wrote: I see this sentence: Having one source root contain another (e.g. src and src/java) can cause obscure problems. but I have: src/ java/ mpdv/ Which I assume is what Leinengen is asking for. On Friday, February 22, 2013 5:23:28 PM UTC-5, larry google groups wrote: Maybe I spoke too soon. I have now stepped into the Twilight Zone. Changes I make to files do not get built when a try to run lein. Just to get some kind of reaction from Leinengen I just put random garbage in the ns clause of my core.clj: (ns lkjlkljlkjlkj mpdv.core (:gen-class) (:import (java.net URL URLConnection) (java.io ByteArrayInputStream BufferedReader IOException InputStream InputStreamReader OutputStreamWriter UnsupportedEncodingException) (java.text SimpleDateFormat) (java.util Date) (java.security MessageDigest) (org.apache.commons.mail SimpleEmail HtmlEmail) (org.joda.time.format DateTimeFormat ISODateTimeFormat) (Base64Coder) (lkjlkjlkjoiuoiu)) This should have caused an error, but instead, when I did lein uberjar everything compiled -- but compiled without any of the changes I've made during the last 30 minutes. In the terminal, from the same terminal that I run lein uberjar I can run: cat src/mpdv/core.clj and I see my changes, including the random garbage that I just wrote, but somehow, if I then type lein uberjar lein does not see it. I do not know if this issue is related, but following the advice about polygots, given here: https://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md I added this to my project.clj file: :source-paths [src/mpdv] :java-source-paths [src/java] Did I do something wrong here? Why is Leinengen still compiling, even though the source code is full of garbage? On Friday, February 22, 2013 5:01:15 PM UTC-5, larry google groups wrote: Ah, I see. This is a polygot project, which Leiningen describes here: https://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md That worked for me. Leiningen saves the day again. On Friday, February 22, 2013 4:25:04 PM UTC-5, larry google groups wrote: When I just do something obvious, like in mpdv.core: (ns mpdv.core (:gen-class) (:import (Base64Coder)) and then call its static methods I get: Exception in thread main java.lang.NoClassDefFoundError: Base64Coder (wrong name: com/omniture/security/Base64Coder), compiling:(mpdv/core.clj:130) On Friday, February 22, 2013 4:18:00 PM UTC-5, larry google groups wrote: I am ignorant of the JVM, and of Java, so I am sure this is a dumb question. I need to post to the Omniture API. They offer some sample code here: https://developer.omniture.com/en_US/blog/calling-rest-api-in-java That code depends on a Base64Coder class which they offer in a zip file. I downloaded it and did: javac Base64Coder.java and this gave me Base64Coder.class. I created my project with Leinengen2. I thought maybe I could just copy Base64Coder.class to the target/classes folder, but then how would I reference it in my code? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how do I include a single class file from someone else's library?
Hmm, okay. Seems to be working with: :source-paths [src] :java-source-paths [src_java] The example on the Leiningen site might be clear to those who know the JVM, but it was not clear to me. But now I have the earlier problem: Caused by: java.lang.RuntimeException: No such namespace: Base64Coder Not sure how to import this. I tried a simple: (ns mpdv.core (:gen-class) (:import (Base64Coder)) But that does not work. On Friday, February 22, 2013 5:31:49 PM UTC-5, Marko Topolnik wrote: No, src is root for all Clojure. That means that your java root is under the Clojure root. Move java to top-level. On Friday, February 22, 2013 11:28:17 PM UTC+1, larry google groups wrote: I see this sentence: Having one source root contain another (e.g. src and src/java) can cause obscure problems. but I have: src/ java/ mpdv/ Which I assume is what Leinengen is asking for. On Friday, February 22, 2013 5:23:28 PM UTC-5, larry google groups wrote: Maybe I spoke too soon. I have now stepped into the Twilight Zone. Changes I make to files do not get built when a try to run lein. Just to get some kind of reaction from Leinengen I just put random garbage in the ns clause of my core.clj: (ns lkjlkljlkjlkj mpdv.core (:gen-class) (:import (java.net URL URLConnection) (java.io ByteArrayInputStream BufferedReader IOException InputStream InputStreamReader OutputStreamWriter UnsupportedEncodingException) (java.text SimpleDateFormat) (java.util Date) (java.security MessageDigest) (org.apache.commons.mail SimpleEmail HtmlEmail) (org.joda.time.format DateTimeFormat ISODateTimeFormat) (Base64Coder) (lkjlkjlkjoiuoiu)) This should have caused an error, but instead, when I did lein uberjar everything compiled -- but compiled without any of the changes I've made during the last 30 minutes. In the terminal, from the same terminal that I run lein uberjar I can run: cat src/mpdv/core.clj and I see my changes, including the random garbage that I just wrote, but somehow, if I then type lein uberjar lein does not see it. I do not know if this issue is related, but following the advice about polygots, given here: https://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md I added this to my project.clj file: :source-paths [src/mpdv] :java-source-paths [src/java] Did I do something wrong here? Why is Leinengen still compiling, even though the source code is full of garbage? On Friday, February 22, 2013 5:01:15 PM UTC-5, larry google groups wrote: Ah, I see. This is a polygot project, which Leiningen describes here: https://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md That worked for me. Leiningen saves the day again. On Friday, February 22, 2013 4:25:04 PM UTC-5, larry google groups wrote: When I just do something obvious, like in mpdv.core: (ns mpdv.core (:gen-class) (:import (Base64Coder)) and then call its static methods I get: Exception in thread main java.lang.NoClassDefFoundError: Base64Coder (wrong name: com/omniture/security/Base64Coder), compiling:(mpdv/core.clj:130) On Friday, February 22, 2013 4:18:00 PM UTC-5, larry google groups wrote: I am ignorant of the JVM, and of Java, so I am sure this is a dumb question. I need to post to the Omniture API. They offer some sample code here: https://developer.omniture.com/en_US/blog/calling-rest-api-in-java That code depends on a Base64Coder class which they offer in a zip file. I downloaded it and did: javac Base64Coder.java and this gave me Base64Coder.class. I created my project with Leinengen2. I thought maybe I could just copy Base64Coder.class to the target/classes folder, but then how would I reference it in my code? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: how do I include a single class file from someone else's library?
use fully qualified name for that class, I think? On Fri, Feb 22, 2013 at 11:50 PM, larry google groups lawrencecloj...@gmail.com wrote: Hmm, okay. Seems to be working with: :source-paths [src] :java-source-paths [src_java] The example on the Leiningen site might be clear to those who know the JVM, but it was not clear to me. But now I have the earlier problem: Caused by: java.lang.RuntimeException: No such namespace: Base64Coder Not sure how to import this. I tried a simple: (ns mpdv.core (:gen-class) (:import (Base64Coder)) But that does not work. On Friday, February 22, 2013 5:31:49 PM UTC-5, Marko Topolnik wrote: No, src is root for all Clojure. That means that your java root is under the Clojure root. Move java to top-level. On Friday, February 22, 2013 11:28:17 PM UTC+1, larry google groups wrote: I see this sentence: Having one source root contain another (e.g. src and src/java) can cause obscure problems. but I have: src/ java/ mpdv/ Which I assume is what Leinengen is asking for. On Friday, February 22, 2013 5:23:28 PM UTC-5, larry google groups wrote: Maybe I spoke too soon. I have now stepped into the Twilight Zone. Changes I make to files do not get built when a try to run lein. Just to get some kind of reaction from Leinengen I just put random garbage in the ns clause of my core.clj: (ns lkjlkljlkjlkj mpdv.core (:gen-class) (:import (java.net URL URLConnection) (java.io ByteArrayInputStream BufferedReader IOException InputStream InputStreamReader OutputStreamWriter UnsupportedEncodingException) (java.text SimpleDateFormat) (java.util Date) (java.security MessageDigest) (org.apache.commons.mail SimpleEmail HtmlEmail) (org.joda.time.format DateTimeFormat ISODateTimeFormat) (Base64Coder) (lkjlkjlkjoiuoiu)) This should have caused an error, but instead, when I did lein uberjar everything compiled -- but compiled without any of the changes I've made during the last 30 minutes. In the terminal, from the same terminal that I run lein uberjar I can run: cat src/mpdv/core.clj and I see my changes, including the random garbage that I just wrote, but somehow, if I then type lein uberjar lein does not see it. I do not know if this issue is related, but following the advice about polygots, given here: https://github.com/**technomancy/leiningen/blob/** stable/doc/MIXED_PROJECTS.mdhttps://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md I added this to my project.clj file: :source-paths [src/mpdv] :java-source-paths [src/java] Did I do something wrong here? Why is Leinengen still compiling, even though the source code is full of garbage? On Friday, February 22, 2013 5:01:15 PM UTC-5, larry google groups wrote: Ah, I see. This is a polygot project, which Leiningen describes here: https://github.com/**technomancy/leiningen/blob/** stable/doc/MIXED_PROJECTS.mdhttps://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md That worked for me. Leiningen saves the day again. On Friday, February 22, 2013 4:25:04 PM UTC-5, larry google groups wrote: When I just do something obvious, like in mpdv.core: (ns mpdv.core (:gen-class) (:import (Base64Coder)) and then call its static methods I get: Exception in thread main java.lang.**NoClassDefFoundError: Base64Coder (wrong name: com/omniture/security/**Base64Coder), compiling:(mpdv/core.clj:130) On Friday, February 22, 2013 4:18:00 PM UTC-5, larry google groups wrote: I am ignorant of the JVM, and of Java, so I am sure this is a dumb question. I need to post to the Omniture API. They offer some sample code here: https://developer.omniture.**com/en_US/blog/calling-rest-** api-in-javahttps://developer.omniture.com/en_US/blog/calling-rest-api-in-java That code depends on a Base64Coder class which they offer in a zip file. I downloaded it and did: javac Base64Coder.java and this gave me Base64Coder.class. I created my project with Leinengen2. I thought maybe I could just copy Base64Coder.class to the target/classes folder, but then how would I reference it in my code? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Please correct me if I'm wrong or incomplete
Re: how do I include a single class file from someone else's library?
I don't get it. Whats the fully qualified name of a standalone file that i have locally? On Friday, February 22, 2013 6:03:13 PM UTC-5, AtKaaZ wrote: use fully qualified name for that class, I think? On Fri, Feb 22, 2013 at 11:50 PM, larry google groups lawrenc...@gmail.com javascript: wrote: Hmm, okay. Seems to be working with: :source-paths [src] :java-source-paths [src_java] The example on the Leiningen site might be clear to those who know the JVM, but it was not clear to me. But now I have the earlier problem: Caused by: java.lang.RuntimeException: No such namespace: Base64Coder Not sure how to import this. I tried a simple: (ns mpdv.core (:gen-class) (:import (Base64Coder)) But that does not work. On Friday, February 22, 2013 5:31:49 PM UTC-5, Marko Topolnik wrote: No, src is root for all Clojure. That means that your java root is under the Clojure root. Move java to top-level. On Friday, February 22, 2013 11:28:17 PM UTC+1, larry google groups wrote: I see this sentence: Having one source root contain another (e.g. src and src/java) can cause obscure problems. but I have: src/ java/ mpdv/ Which I assume is what Leinengen is asking for. On Friday, February 22, 2013 5:23:28 PM UTC-5, larry google groups wrote: Maybe I spoke too soon. I have now stepped into the Twilight Zone. Changes I make to files do not get built when a try to run lein. Just to get some kind of reaction from Leinengen I just put random garbage in the ns clause of my core.clj: (ns lkjlkljlkjlkj mpdv.core (:gen-class) (:import (java.net URL URLConnection) (java.io ByteArrayInputStream BufferedReader IOException InputStream InputStreamReader OutputStreamWriter UnsupportedEncodingException) (java.text SimpleDateFormat) (java.util Date) (java.security MessageDigest) (org.apache.commons.mail SimpleEmail HtmlEmail) (org.joda.time.format DateTimeFormat ISODateTimeFormat) (Base64Coder) (lkjlkjlkjoiuoiu)) This should have caused an error, but instead, when I did lein uberjar everything compiled -- but compiled without any of the changes I've made during the last 30 minutes. In the terminal, from the same terminal that I run lein uberjar I can run: cat src/mpdv/core.clj and I see my changes, including the random garbage that I just wrote, but somehow, if I then type lein uberjar lein does not see it. I do not know if this issue is related, but following the advice about polygots, given here: https://github.com/**technomancy/leiningen/blob/** stable/doc/MIXED_PROJECTS.mdhttps://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md I added this to my project.clj file: :source-paths [src/mpdv] :java-source-paths [src/java] Did I do something wrong here? Why is Leinengen still compiling, even though the source code is full of garbage? On Friday, February 22, 2013 5:01:15 PM UTC-5, larry google groups wrote: Ah, I see. This is a polygot project, which Leiningen describes here: https://github.com/**technomancy/leiningen/blob/** stable/doc/MIXED_PROJECTS.mdhttps://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md That worked for me. Leiningen saves the day again. On Friday, February 22, 2013 4:25:04 PM UTC-5, larry google groups wrote: When I just do something obvious, like in mpdv.core: (ns mpdv.core (:gen-class) (:import (Base64Coder)) and then call its static methods I get: Exception in thread main java.lang.**NoClassDefFoundError: Base64Coder (wrong name: com/omniture/security/**Base64Coder), compiling:(mpdv/core.clj:130) On Friday, February 22, 2013 4:18:00 PM UTC-5, larry google groups wrote: I am ignorant of the JVM, and of Java, so I am sure this is a dumb question. I need to post to the Omniture API. They offer some sample code here: https://developer.omniture.**com/en_US/blog/calling-rest-** api-in-javahttps://developer.omniture.com/en_US/blog/calling-rest-api-in-java That code depends on a Base64Coder class which they offer in a zip file. I downloaded it and did: javac Base64Coder.java and this gave me Base64Coder.class. I created my project with Leinengen2. I thought maybe I could just copy Base64Coder.class to the target/classes folder, but then how would I reference it in my code? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com javascript: For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe
Re: how do I include a single class file from someone else's library?
this: (:import (Base64Coder)) gets me: Caused by: java.lang.RuntimeException: No such namespace: Base64Coder this: (:import (src_java Base64Coder)) gets me: Exception in thread main java.lang.ClassNotFoundException: src_java.Base64Coder, compiling:(core.clj:1) On Friday, February 22, 2013 6:14:42 PM UTC-5, larry google groups wrote: I don't get it. Whats the fully qualified name of a standalone file that i have locally? On Friday, February 22, 2013 6:03:13 PM UTC-5, AtKaaZ wrote: use fully qualified name for that class, I think? On Fri, Feb 22, 2013 at 11:50 PM, larry google groups lawrenc...@gmail.com wrote: Hmm, okay. Seems to be working with: :source-paths [src] :java-source-paths [src_java] The example on the Leiningen site might be clear to those who know the JVM, but it was not clear to me. But now I have the earlier problem: Caused by: java.lang.RuntimeException: No such namespace: Base64Coder Not sure how to import this. I tried a simple: (ns mpdv.core (:gen-class) (:import (Base64Coder)) But that does not work. On Friday, February 22, 2013 5:31:49 PM UTC-5, Marko Topolnik wrote: No, src is root for all Clojure. That means that your java root is under the Clojure root. Move java to top-level. On Friday, February 22, 2013 11:28:17 PM UTC+1, larry google groups wrote: I see this sentence: Having one source root contain another (e.g. src and src/java) can cause obscure problems. but I have: src/ java/ mpdv/ Which I assume is what Leinengen is asking for. On Friday, February 22, 2013 5:23:28 PM UTC-5, larry google groups wrote: Maybe I spoke too soon. I have now stepped into the Twilight Zone. Changes I make to files do not get built when a try to run lein. Just to get some kind of reaction from Leinengen I just put random garbage in the ns clause of my core.clj: (ns lkjlkljlkjlkj mpdv.core (:gen-class) (:import (java.net URL URLConnection) (java.io ByteArrayInputStream BufferedReader IOException InputStream InputStreamReader OutputStreamWriter UnsupportedEncodingException) (java.text SimpleDateFormat) (java.util Date) (java.security MessageDigest) (org.apache.commons.mail SimpleEmail HtmlEmail) (org.joda.time.format DateTimeFormat ISODateTimeFormat) (Base64Coder) (lkjlkjlkjoiuoiu)) This should have caused an error, but instead, when I did lein uberjar everything compiled -- but compiled without any of the changes I've made during the last 30 minutes. In the terminal, from the same terminal that I run lein uberjar I can run: cat src/mpdv/core.clj and I see my changes, including the random garbage that I just wrote, but somehow, if I then type lein uberjar lein does not see it. I do not know if this issue is related, but following the advice about polygots, given here: https://github.com/**technomancy/leiningen/blob/** stable/doc/MIXED_PROJECTS.mdhttps://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md I added this to my project.clj file: :source-paths [src/mpdv] :java-source-paths [src/java] Did I do something wrong here? Why is Leinengen still compiling, even though the source code is full of garbage? On Friday, February 22, 2013 5:01:15 PM UTC-5, larry google groups wrote: Ah, I see. This is a polygot project, which Leiningen describes here: https://github.com/**technomancy/leiningen/blob/** stable/doc/MIXED_PROJECTS.mdhttps://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md That worked for me. Leiningen saves the day again. On Friday, February 22, 2013 4:25:04 PM UTC-5, larry google groups wrote: When I just do something obvious, like in mpdv.core: (ns mpdv.core (:gen-class) (:import (Base64Coder)) and then call its static methods I get: Exception in thread main java.lang.**NoClassDefFoundError: Base64Coder (wrong name: com/omniture/security/**Base64Coder), compiling:(mpdv/core.clj:130) On Friday, February 22, 2013 4:18:00 PM UTC-5, larry google groups wrote: I am ignorant of the JVM, and of Java, so I am sure this is a dumb question. I need to post to the Omniture API. They offer some sample code here: https://developer.omniture.**com/en_US/blog/calling-rest-** api-in-javahttps://developer.omniture.com/en_US/blog/calling-rest-api-in-java That code depends on a Base64Coder class which they offer in a zip file. I downloaded it and did: javac Base64Coder.java and this gave me Base64Coder.class. I created my project with Leinengen2. I thought maybe I could just copy Base64Coder.class to the target/classes folder, but then how would I reference it in my code? -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.com Note that posts from new members
Re: how do I include a single class file from someone else's library?
You must know the package name of your class. Is it really in the default package? That would be almost impossible since you can't even refer to such a class from another class in a normal package. On Saturday, February 23, 2013 12:20:15 AM UTC+1, larry google groups wrote: this: (:import (Base64Coder)) gets me: Caused by: java.lang.RuntimeException: No such namespace: Base64Coder this: (:import (src_java Base64Coder)) gets me: Exception in thread main java.lang.ClassNotFoundException: src_java.Base64Coder, compiling:(core.clj:1) On Friday, February 22, 2013 6:14:42 PM UTC-5, larry google groups wrote: I don't get it. Whats the fully qualified name of a standalone file that i have locally? On Friday, February 22, 2013 6:03:13 PM UTC-5, AtKaaZ wrote: use fully qualified name for that class, I think? On Fri, Feb 22, 2013 at 11:50 PM, larry google groups lawrenc...@gmail.com wrote: Hmm, okay. Seems to be working with: :source-paths [src] :java-source-paths [src_java] The example on the Leiningen site might be clear to those who know the JVM, but it was not clear to me. But now I have the earlier problem: Caused by: java.lang.RuntimeException: No such namespace: Base64Coder Not sure how to import this. I tried a simple: (ns mpdv.core (:gen-class) (:import (Base64Coder)) But that does not work. On Friday, February 22, 2013 5:31:49 PM UTC-5, Marko Topolnik wrote: No, src is root for all Clojure. That means that your java root is under the Clojure root. Move java to top-level. On Friday, February 22, 2013 11:28:17 PM UTC+1, larry google groups wrote: I see this sentence: Having one source root contain another (e.g. src and src/java) can cause obscure problems. but I have: src/ java/ mpdv/ Which I assume is what Leinengen is asking for. On Friday, February 22, 2013 5:23:28 PM UTC-5, larry google groups wrote: Maybe I spoke too soon. I have now stepped into the Twilight Zone. Changes I make to files do not get built when a try to run lein. Just to get some kind of reaction from Leinengen I just put random garbage in the ns clause of my core.clj: (ns lkjlkljlkjlkj mpdv.core (:gen-class) (:import (java.net URL URLConnection) (java.io ByteArrayInputStream BufferedReader IOException InputStream InputStreamReader OutputStreamWriter UnsupportedEncodingException) (java.text SimpleDateFormat) (java.util Date) (java.security MessageDigest) (org.apache.commons.mail SimpleEmail HtmlEmail) (org.joda.time.format DateTimeFormat ISODateTimeFormat) (Base64Coder) (lkjlkjlkjoiuoiu)) This should have caused an error, but instead, when I did lein uberjar everything compiled -- but compiled without any of the changes I've made during the last 30 minutes. In the terminal, from the same terminal that I run lein uberjar I can run: cat src/mpdv/core.clj and I see my changes, including the random garbage that I just wrote, but somehow, if I then type lein uberjar lein does not see it. I do not know if this issue is related, but following the advice about polygots, given here: https://github.com/**technomancy/leiningen/blob/** stable/doc/MIXED_PROJECTS.mdhttps://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md I added this to my project.clj file: :source-paths [src/mpdv] :java-source-paths [src/java] Did I do something wrong here? Why is Leinengen still compiling, even though the source code is full of garbage? On Friday, February 22, 2013 5:01:15 PM UTC-5, larry google groups wrote: Ah, I see. This is a polygot project, which Leiningen describes here: https://github.com/**technomancy/leiningen/blob/** stable/doc/MIXED_PROJECTS.mdhttps://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md That worked for me. Leiningen saves the day again. On Friday, February 22, 2013 4:25:04 PM UTC-5, larry google groups wrote: When I just do something obvious, like in mpdv.core: (ns mpdv.core (:gen-class) (:import (Base64Coder)) and then call its static methods I get: Exception in thread main java.lang.**NoClassDefFoundError: Base64Coder (wrong name: com/omniture/security/**Base64Coder), compiling:(mpdv/core.clj:130) On Friday, February 22, 2013 4:18:00 PM UTC-5, larry google groups wrote: I am ignorant of the JVM, and of Java, so I am sure this is a dumb question. I need to post to the Omniture API. They offer some sample code here: https://developer.omniture.**com/en_US/blog/calling-rest-** api-in-javahttps://developer.omniture.com/en_US/blog/calling-rest-api-in-java That code depends on a Base64Coder class which they offer in a zip file. I downloaded it and did: javac Base64Coder.java and this gave me Base64Coder.class. I created my project with Leinengen2. I thought maybe I could just copy
Re: how do I include a single class file from someone else's library?
Oh, I see, the file declared a package. This worked: (com.omniture.security Base64Coder)) The Java stuff still confuses me. Thanks for all the help. On Friday, February 22, 2013 6:20:15 PM UTC-5, larry google groups wrote: this: (:import (Base64Coder)) gets me: Caused by: java.lang.RuntimeException: No such namespace: Base64Coder this: (:import (src_java Base64Coder)) gets me: Exception in thread main java.lang.ClassNotFoundException: src_java.Base64Coder, compiling:(core.clj:1) On Friday, February 22, 2013 6:14:42 PM UTC-5, larry google groups wrote: I don't get it. Whats the fully qualified name of a standalone file that i have locally? On Friday, February 22, 2013 6:03:13 PM UTC-5, AtKaaZ wrote: use fully qualified name for that class, I think? On Fri, Feb 22, 2013 at 11:50 PM, larry google groups lawrenc...@gmail.com wrote: Hmm, okay. Seems to be working with: :source-paths [src] :java-source-paths [src_java] The example on the Leiningen site might be clear to those who know the JVM, but it was not clear to me. But now I have the earlier problem: Caused by: java.lang.RuntimeException: No such namespace: Base64Coder Not sure how to import this. I tried a simple: (ns mpdv.core (:gen-class) (:import (Base64Coder)) But that does not work. On Friday, February 22, 2013 5:31:49 PM UTC-5, Marko Topolnik wrote: No, src is root for all Clojure. That means that your java root is under the Clojure root. Move java to top-level. On Friday, February 22, 2013 11:28:17 PM UTC+1, larry google groups wrote: I see this sentence: Having one source root contain another (e.g. src and src/java) can cause obscure problems. but I have: src/ java/ mpdv/ Which I assume is what Leinengen is asking for. On Friday, February 22, 2013 5:23:28 PM UTC-5, larry google groups wrote: Maybe I spoke too soon. I have now stepped into the Twilight Zone. Changes I make to files do not get built when a try to run lein. Just to get some kind of reaction from Leinengen I just put random garbage in the ns clause of my core.clj: (ns lkjlkljlkjlkj mpdv.core (:gen-class) (:import (java.net URL URLConnection) (java.io ByteArrayInputStream BufferedReader IOException InputStream InputStreamReader OutputStreamWriter UnsupportedEncodingException) (java.text SimpleDateFormat) (java.util Date) (java.security MessageDigest) (org.apache.commons.mail SimpleEmail HtmlEmail) (org.joda.time.format DateTimeFormat ISODateTimeFormat) (Base64Coder) (lkjlkjlkjoiuoiu)) This should have caused an error, but instead, when I did lein uberjar everything compiled -- but compiled without any of the changes I've made during the last 30 minutes. In the terminal, from the same terminal that I run lein uberjar I can run: cat src/mpdv/core.clj and I see my changes, including the random garbage that I just wrote, but somehow, if I then type lein uberjar lein does not see it. I do not know if this issue is related, but following the advice about polygots, given here: https://github.com/**technomancy/leiningen/blob/** stable/doc/MIXED_PROJECTS.mdhttps://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md I added this to my project.clj file: :source-paths [src/mpdv] :java-source-paths [src/java] Did I do something wrong here? Why is Leinengen still compiling, even though the source code is full of garbage? On Friday, February 22, 2013 5:01:15 PM UTC-5, larry google groups wrote: Ah, I see. This is a polygot project, which Leiningen describes here: https://github.com/**technomancy/leiningen/blob/** stable/doc/MIXED_PROJECTS.mdhttps://github.com/technomancy/leiningen/blob/stable/doc/MIXED_PROJECTS.md That worked for me. Leiningen saves the day again. On Friday, February 22, 2013 4:25:04 PM UTC-5, larry google groups wrote: When I just do something obvious, like in mpdv.core: (ns mpdv.core (:gen-class) (:import (Base64Coder)) and then call its static methods I get: Exception in thread main java.lang.**NoClassDefFoundError: Base64Coder (wrong name: com/omniture/security/**Base64Coder), compiling:(mpdv/core.clj:130) On Friday, February 22, 2013 4:18:00 PM UTC-5, larry google groups wrote: I am ignorant of the JVM, and of Java, so I am sure this is a dumb question. I need to post to the Omniture API. They offer some sample code here: https://developer.omniture.**com/en_US/blog/calling-rest-** api-in-javahttps://developer.omniture.com/en_US/blog/calling-rest-api-in-java That code depends on a Base64Coder class which they offer in a zip file. I downloaded it and did: javac Base64Coder.java and this gave me Base64Coder.class. I created my project with Leinengen2. I thought maybe I could just copy Base64Coder.class to the target/classes folder
how do I reference a var that is in my core namespace?
I wanted to have some functions run when an app starts, and I wanted this
to be configurable, because I plan to use the same architecture for several
apps. So I thought I could have the function names as strings inside of
maps inside of a set (that I sort), in a config file. And I thought I could
use ns-resolve *ns* symbol to turn the strings into references to the vars
where the function definitions are stored. But somehow this is not working.
I have this right now, in mpdv.core, which is the core namespace is an app
I created with lein:
(defn process-startup-hooks []
2013-02-21- remember, each row in hooks is a map: {:order-of-events 1,
:event-name 'connect-to-database'}
(connect-to-database)
(let [hooks (sort-by :order-of-events
(:events-called-when-the-app-starts-hooks @um/interactions))]
(doseq [x hooks]
(let [event-as-symbol (symbol (:event-name x))
event (ns-resolve *ns* event-as-symbol)]
(println what kind of var is this? )
(println *ns*)
(println (type event-as-symbol))
(println event-as-symbol)
(if-not (nil? event)
(event))
event is always nil. One of the events listed in um/interactions is
connect-to-database so, as a test, I hardcoded it here, to be sure it
could run here, and it runs fine (first line after the comment). So the var
for the function is known. But this:
(ns-resolve *ns* event-as-symbol)
returns nil, even when event-as-symbol is connect-to-database.
When I println *ns* to the terminal output, I see the namespace is:
#Namespace clojure.core
Which surprises me somewhat.
How do I get ns-resolve to look in mpdv.core for the var that I want it to
find?
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Re: how do I reference a var that is in my core namespace?
I tend to have this at the top of most of my namespaces:
(def ^:private my-ns *ns*)
This evaluates *ns* at load/init time when it is bound to the
namespace being loaded and then initializes my-ns with that value.
Then I use my-ns throughout that namespace.
*ns* is dynamically bound to whatever namespace is currently executing
which is why it changes unexpectedly when you're trying to do
something obvious with it.
On Thu, Feb 21, 2013 at 10:30 AM, larry google groups
lawrencecloj...@gmail.com wrote:
I wanted to have some functions run when an app starts, and I wanted this to
be configurable, because I plan to use the same architecture for several
apps. So I thought I could have the function names as strings inside of maps
inside of a set (that I sort), in a config file. And I thought I could use
ns-resolve *ns* symbol to turn the strings into references to the vars where
the function definitions are stored. But somehow this is not working. I have
this right now, in mpdv.core, which is the core namespace is an app I
created with lein:
(defn process-startup-hooks []
2013-02-21- remember, each row in hooks is a map: {:order-of-events 1,
:event-name 'connect-to-database'}
(connect-to-database)
(let [hooks (sort-by :order-of-events
(:events-called-when-the-app-starts-hooks @um/interactions))]
(doseq [x hooks]
(let [event-as-symbol (symbol (:event-name x))
event (ns-resolve *ns* event-as-symbol)]
(println what kind of var is this? )
(println *ns*)
(println (type event-as-symbol))
(println event-as-symbol)
(if-not (nil? event)
(event))
event is always nil. One of the events listed in um/interactions is
connect-to-database so, as a test, I hardcoded it here, to be sure it
could run here, and it runs fine (first line after the comment). So the var
for the function is known. But this:
(ns-resolve *ns* event-as-symbol)
returns nil, even when event-as-symbol is connect-to-database.
When I println *ns* to the terminal output, I see the namespace is:
#Namespace clojure.core
Which surprises me somewhat.
How do I get ns-resolve to look in mpdv.core for the var that I want it to
find?
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An Architect's View -- http://corfield.org/
World Singles, LLC. -- http://worldsingles.com/
Perfection is the enemy of the good.
-- Gustave Flaubert, French realist novelist (1821-1880)
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Re: how do I reference a var that is in my core namespace?
That worked. I find it a little surprising that this is the correct way to
do this, but it worked, so I am happy. Thank you.
On Thursday, February 21, 2013 1:43:18 PM UTC-5, Sean Corfield wrote:
I tend to have this at the top of most of my namespaces:
(def ^:private my-ns *ns*)
This evaluates *ns* at load/init time when it is bound to the
namespace being loaded and then initializes my-ns with that value.
Then I use my-ns throughout that namespace.
*ns* is dynamically bound to whatever namespace is currently executing
which is why it changes unexpectedly when you're trying to do
something obvious with it.
On Thu, Feb 21, 2013 at 10:30 AM, larry google groups
lawrenc...@gmail.com javascript: wrote:
I wanted to have some functions run when an app starts, and I wanted
this to
be configurable, because I plan to use the same architecture for several
apps. So I thought I could have the function names as strings inside of
maps
inside of a set (that I sort), in a config file. And I thought I could
use
ns-resolve *ns* symbol to turn the strings into references to the vars
where
the function definitions are stored. But somehow this is not working. I
have
this right now, in mpdv.core, which is the core namespace is an app I
created with lein:
(defn process-startup-hooks []
2013-02-21- remember, each row in hooks is a map: {:order-of-events
1,
:event-name 'connect-to-database'}
(connect-to-database)
(let [hooks (sort-by :order-of-events
(:events-called-when-the-app-starts-hooks @um/interactions))]
(doseq [x hooks]
(let [event-as-symbol (symbol (:event-name x))
event (ns-resolve *ns* event-as-symbol)]
(println what kind of var is this? )
(println *ns*)
(println (type event-as-symbol))
(println event-as-symbol)
(if-not (nil? event)
(event))
event is always nil. One of the events listed in um/interactions is
connect-to-database so, as a test, I hardcoded it here, to be sure it
could run here, and it runs fine (first line after the comment). So the
var
for the function is known. But this:
(ns-resolve *ns* event-as-symbol)
returns nil, even when event-as-symbol is connect-to-database.
When I println *ns* to the terminal output, I see the namespace is:
#Namespace clojure.core
Which surprises me somewhat.
How do I get ns-resolve to look in mpdv.core for the var that I want it
to
find?
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An Architect's View -- http://corfield.org/
World Singles, LLC. -- http://worldsingles.com/
Perfection is the enemy of the good.
-- Gustave Flaubert, French realist novelist (1821-1880)
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How do you typecast and insert a Postgres enum value using Clojure JDBC?
For example, here is a product table in PostgreSQL with status as an enum:
create type product_status as enum ('InStock', 'OutOfStock');
create table product (
pidint primary key default nextval('product_pid_seq'),
skutext not null unique,
name text not null,
descriptiontext not null,
quantity int not null,
cost numeric(10,2) not null,
price numeric(10,2) not null,
weight numeric(10,2),
status product_status not null);
Typical Clojure code to insert a product would be:
(def prod-12345 {:sku 12345
:name My Product
:description yada yada yada
:quantity 100
:cost 42.00
:price 59.00
:weight 0.3
:status InStock})
(sql/with-connection db-spec
(sql/insert-record :product product-12345))
However, status is an enum so you can't insert it as a normal string
without casting it to an enum:
'InStock'::product_status
I know you can do it with a prepared statement, such as:
INSERT INTO product (name, status) VALUES (?, ?::product_status)
But is there a way to do it without using a prepared statement?
From StackOverflow:
http://stackoverflow.com/questions/14719207/how-do-you-insert-a-postgres-enum-value-using-clojure-jdbc
- James
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do background threads sometimes swallow exceptions?
I think someone on this mailist recently said that an exception that occurs in a thread is sometimes lost? That is, even if I put in a lot of pprint statements or println statements* or (stack/print-stack-trace e) expressions, and I just want it to show up in terminal, so I can debug it, but if the exception happens in a background thread, it gets lost? If this is true, what is the best way to find these errors? I have been unable to save a document to MongoDb using Monger. I assume the problem is that my connection credentials are wrong, but no error ever appears in the output. I posted the question to Stackoverflow: http://stackoverflow.com/questions/14564589/how-do-i-add-a-document-to-mongodb-with-monger-and-clojure But so far I have no answers. *I do realize that in Clojure there are no statements, but I assume my meaning was clear enough. -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: do background threads sometimes swallow exceptions?
I don't see any threads in your Stack Overflow post. I thought it would be over-complicated to include all of the code. But inside my -main function I start a new thread and call the function that calls the function that causes this error. They are not lost. Unhandled exceptions cause threads to terminate immediately. That is good to know. I have the top level function call wrapped in a try/catch block, but I suppose I'll get better results if I do more of the try/catch at a lower level, closer to the problem. W dniu wtorek, 29 stycznia 2013 16:03:51 UTC-5 użytkownik Michael Klishin napisał: 2013/1/30 larry google groups lawrenc...@gmail.com javascript: but if the exception happens in a background thread, it gets lost? If this is true, what is the best way to find these errors? They are not lost. Unhandled exceptions cause threads to terminate immediately. You need to handle exceptions where you expect them. I don't see any threads in your Stack Overflow post. Monger itself does not create any threads internally. You are saying your credentials may be wrong but no code, it is true that with MongoDB Java driver's current behavior exceptions will be thrown next time you attempt to do something rather than immediately upon connection. -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: do background threads sometimes swallow exceptions?
On Jan 29, 2013, at 4:56 PM, Michael Klishin wrote: 2013/1/30 larry google groups lawrencecloj...@gmail.com That is good to know. I have the top level function call wrapped in a try/catch block, but I suppose I'll get better results if I do more of the try/catch at a lower level, closer to the problem. Wrap the entire new thread body in a try/catch, it should reveal any exceptions there may be. Also, if you're actually revving up new Threads, this sometimes comes in handy: http://docs.oracle.com/javase/6/docs/api/java/lang/Thread.html#setDefaultUncaughtExceptionHandler%28java.lang.Thread.UncaughtExceptionHandler%29 - Chas -- -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
How do I install guice?
I am building a web app. I just included Compojure and Friend as dependencies, and one of these, in turn, relies on Google Guice. I type: lein uberjar and I get a whole lot of output which includes: Could not find artifact com.google.code.guice:guice:pom:2.0 in central (http://repo1.maven.org/maven2) Could not find artifact com.google.code.guice:guice:pom:2.0 in clojars (https://clojars.org/repo/) Could not transfer artifact com.google.code.guice:guice:pom:2.0 from/ to guice (http://guice-maven.googlecode.com/svn/trunk): Not authorized, ReasonPhrase:Authorization Required. Could not find artifact com.google.code.guice:guice:pom:2.0 in alchim.snapshots (http://alchim.sf.net/download/snapshots) Check :dependencies and :repositories for typos. It's possible the specified jar is not in any repository. If so, see Free-floating Jars under http://j.mp/repeatability Uberjar aborting because jar/compilation failed: Could not resolve dependencies I find instructions for installing guice here: http://code.google.com/p/roboguice/issues/detail?id=38 I download guice from here: http://code.google.com/p/google-guice/downloads/list On my Mac, at the command line, I then run: mvn install:install-file -DgroupId=com.google.android.maps - DartifactId=maps -Dversion=3_r3 -Dpackaging=jar -Dfile=/Users/lkrubner/ Downloads/guice-2.0/guice-2.0.jar and I get: [INFO] Scanning for projects... [INFO] [INFO] [INFO] Building Maven Stub Project (No POM) 1 [INFO] [INFO] [INFO] --- maven-install-plugin:2.3.1:install-file (default-cli) @ standalone-pom --- [INFO] Installing /Users/lkrubner/Downloads/guice-2.0/guice-2.0.jar to /Users/lkrubner/.m2/repository/com/google/android/maps/maps/3_r3/ maps-3_r3.jar [INFO] [INFO] BUILD SUCCESS [INFO] [INFO] Total time: 0.718s [INFO] Finished at: Mon Jan 14 10:18:44 EST 2013 [INFO] Final Memory: 4M/92M [INFO] I then again run: lein uberjar and again I get: lein uberjar Could not find artifact com.google.code.guice:guice:pom:2.0 in central (http://repo1.maven.org/maven2) Could not find artifact com.google.code.guice:guice:pom:2.0 in clojars (https://clojars.org/repo/) Could not transfer artifact com.google.code.guice:guice:pom:2.0 from/ to guice (http://guice-maven.googlecode.com/svn/trunk): Not authorized, ReasonPhrase:Authorization Required. Could not find artifact com.google.code.guice:guice:pom:2.0 in alchim.snapshots (http://alchim.sf.net/download/snapshots) Check :dependencies and :repositories for typos. It's possible the specified jar is not in any repository. If so, see Free-floating Jars under http://j.mp/repeatability Uberjar aborting because jar/compilation failed: Could not resolve dependencies What am I doing wrong? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How do I install guice?
Please change your Friend dependency to [com.cemerick/friend 0.1.3]. Prior versions transitively depended upon a Guice artifact that was hosted on a now-404 Maven repository via Google Code's svn. Friend = 0.1.3 depends only on artifacts available in Clojars and Maven Central, and will remain that way. Sorry for the inconvenience, - Chas On Jan 14, 2013, at 10:23 AM, larry google groups wrote: I am building a web app. I just included Compojure and Friend as dependencies, and one of these, in turn, relies on Google Guice. I type: lein uberjar and I get a whole lot of output which includes: Could not find artifact com.google.code.guice:guice:pom:2.0 in central (http://repo1.maven.org/maven2) Could not find artifact com.google.code.guice:guice:pom:2.0 in clojars (https://clojars.org/repo/) Could not transfer artifact com.google.code.guice:guice:pom:2.0 from/ to guice (http://guice-maven.googlecode.com/svn/trunk): Not authorized, ReasonPhrase:Authorization Required. Could not find artifact com.google.code.guice:guice:pom:2.0 in alchim.snapshots (http://alchim.sf.net/download/snapshots) Check :dependencies and :repositories for typos. It's possible the specified jar is not in any repository. If so, see Free-floating Jars under http://j.mp/repeatability Uberjar aborting because jar/compilation failed: Could not resolve dependencies I find instructions for installing guice here: http://code.google.com/p/roboguice/issues/detail?id=38 I download guice from here: http://code.google.com/p/google-guice/downloads/list On my Mac, at the command line, I then run: mvn install:install-file -DgroupId=com.google.android.maps - DartifactId=maps -Dversion=3_r3 -Dpackaging=jar -Dfile=/Users/lkrubner/ Downloads/guice-2.0/guice-2.0.jar and I get: [INFO] Scanning for projects... [INFO] [INFO] [INFO] Building Maven Stub Project (No POM) 1 [INFO] [INFO] [INFO] --- maven-install-plugin:2.3.1:install-file (default-cli) @ standalone-pom --- [INFO] Installing /Users/lkrubner/Downloads/guice-2.0/guice-2.0.jar to /Users/lkrubner/.m2/repository/com/google/android/maps/maps/3_r3/ maps-3_r3.jar [INFO] [INFO] BUILD SUCCESS [INFO] [INFO] Total time: 0.718s [INFO] Finished at: Mon Jan 14 10:18:44 EST 2013 [INFO] Final Memory: 4M/92M [INFO] I then again run: lein uberjar and again I get: lein uberjar Could not find artifact com.google.code.guice:guice:pom:2.0 in central (http://repo1.maven.org/maven2) Could not find artifact com.google.code.guice:guice:pom:2.0 in clojars (https://clojars.org/repo/) Could not transfer artifact com.google.code.guice:guice:pom:2.0 from/ to guice (http://guice-maven.googlecode.com/svn/trunk): Not authorized, ReasonPhrase:Authorization Required. Could not find artifact com.google.code.guice:guice:pom:2.0 in alchim.snapshots (http://alchim.sf.net/download/snapshots) Check :dependencies and :repositories for typos. It's possible the specified jar is not in any repository. If so, see Free-floating Jars under http://j.mp/repeatability Uberjar aborting because jar/compilation failed: Could not resolve dependencies What am I doing wrong? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: How do I install guice?
Thank you for the fast reply. That helped. But do you (or anyone else here) know of a workaround for friend-oauth2? I get: lein uberjar Could not find artifact friend-oauth2:friend-oauth2:pom:0.0.2 in central (http://repo1.maven.org/maven2) Retrieving friend-oauth2/friend-oauth2/0.0.2/friend-oauth2-0.0.2.pom (4k) from https://clojars.org/repo/ Could not find artifact com.google.code.guice:guice:pom:2.0 in central (http://repo1.maven.org/maven2) Could not find artifact com.google.code.guice:guice:pom:2.0 in clojars (https://clojars.org/repo/) Could not find artifact com.google.code.guice:guice:pom:2.0 in stuart (http://stuartsierra.com/maven2) Could not transfer artifact com.google.code.guice:guice:pom:2.0 from/ to guice (http://guice-maven.googlecode.com/svn/trunk): Not authorized, ReasonPhrase:Authorization Required. Could not find artifact com.google.code.guice:guice:pom:2.0 in alchim.snapshots (http://alchim.sf.net/download/snapshots) On 14 Sty, 11:12, Chas Emerick c...@cemerick.com wrote: Please change your Friend dependency to [com.cemerick/friend 0.1.3]. Prior versions transitively depended upon a Guice artifact that was hosted on a now-404 Maven repository via Google Code's svn. Friend = 0.1.3 depends only on artifacts available in Clojars and Maven Central, and will remain that way. Sorry for the inconvenience, - Chas On Jan 14, 2013, at 10:23 AM, larry google groups wrote: I am building a web app. I just included Compojure and Friend as dependencies, and one of these, in turn, relies on Google Guice. I type: lein uberjar and I get a whole lot of output which includes: Could not find artifact com.google.code.guice:guice:pom:2.0 in central (http://repo1.maven.org/maven2) Could not find artifact com.google.code.guice:guice:pom:2.0 in clojars (https://clojars.org/repo/) Could not transfer artifact com.google.code.guice:guice:pom:2.0 from/ to guice (http://guice-maven.googlecode.com/svn/trunk):Not authorized, ReasonPhrase:Authorization Required. Could not find artifact com.google.code.guice:guice:pom:2.0 in alchim.snapshots (http://alchim.sf.net/download/snapshots) Check :dependencies and :repositories for typos. It's possible the specified jar is not in any repository. If so, see Free-floating Jars underhttp://j.mp/repeatability Uberjar aborting because jar/compilation failed: Could not resolve dependencies I find instructions for installing guice here: http://code.google.com/p/roboguice/issues/detail?id=38 I download guice from here: http://code.google.com/p/google-guice/downloads/list On my Mac, at the command line, I then run: mvn install:install-file -DgroupId=com.google.android.maps - DartifactId=maps -Dversion=3_r3 -Dpackaging=jar -Dfile=/Users/lkrubner/ Downloads/guice-2.0/guice-2.0.jar and I get: [INFO] Scanning for projects... [INFO] [INFO] [INFO] Building Maven Stub Project (No POM) 1 [INFO] [INFO] [INFO] --- maven-install-plugin:2.3.1:install-file (default-cli) @ standalone-pom --- [INFO] Installing /Users/lkrubner/Downloads/guice-2.0/guice-2.0.jar to /Users/lkrubner/.m2/repository/com/google/android/maps/maps/3_r3/ maps-3_r3.jar [INFO] [INFO] BUILD SUCCESS [INFO] [INFO] Total time: 0.718s [INFO] Finished at: Mon Jan 14 10:18:44 EST 2013 [INFO] Final Memory: 4M/92M [INFO] I then again run: lein uberjar and again I get: lein uberjar Could not find artifact com.google.code.guice:guice:pom:2.0 in central (http://repo1.maven.org/maven2) Could not find artifact com.google.code.guice:guice:pom:2.0 in clojars (https://clojars.org/repo/) Could not transfer artifact com.google.code.guice:guice:pom:2.0 from/ to guice (http://guice-maven.googlecode.com/svn/trunk):Not authorized, ReasonPhrase:Authorization Required. Could not find artifact com.google.code.guice:guice:pom:2.0 in alchim.snapshots (http://alchim.sf.net/download/snapshots) Check :dependencies and :repositories for typos. It's possible the specified jar is not in any repository. If so, see Free-floating Jars underhttp://j.mp/repeatability Uberjar aborting because jar/compilation failed: Could not resolve dependencies What am I doing wrong? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options
Re: How do I install guice?
Instead of this: [friend-oauth2 0.0.2] Use this: [friend-oauth2 0.0.2 :exclusions [com.cemerick/friend]] [com.cemerick/friend 0.1.3] That will keep lein from attempting to resolve the now-gone Guice artifact transitively referred to by the older revs of friend. - Chas On Jan 14, 2013, at 11:48 AM, larry google groups wrote: Thank you for the fast reply. That helped. But do you (or anyone else here) know of a workaround for friend-oauth2? I get: lein uberjar Could not find artifact friend-oauth2:friend-oauth2:pom:0.0.2 in central (http://repo1.maven.org/maven2) Retrieving friend-oauth2/friend-oauth2/0.0.2/friend-oauth2-0.0.2.pom (4k) from https://clojars.org/repo/ Could not find artifact com.google.code.guice:guice:pom:2.0 in central (http://repo1.maven.org/maven2) Could not find artifact com.google.code.guice:guice:pom:2.0 in clojars (https://clojars.org/repo/) Could not find artifact com.google.code.guice:guice:pom:2.0 in stuart (http://stuartsierra.com/maven2) Could not transfer artifact com.google.code.guice:guice:pom:2.0 from/ to guice (http://guice-maven.googlecode.com/svn/trunk): Not authorized, ReasonPhrase:Authorization Required. Could not find artifact com.google.code.guice:guice:pom:2.0 in alchim.snapshots (http://alchim.sf.net/download/snapshots) On 14 Sty, 11:12, Chas Emerick c...@cemerick.com wrote: Please change your Friend dependency to [com.cemerick/friend 0.1.3]. Prior versions transitively depended upon a Guice artifact that was hosted on a now-404 Maven repository via Google Code's svn. Friend = 0.1.3 depends only on artifacts available in Clojars and Maven Central, and will remain that way. Sorry for the inconvenience, - Chas On Jan 14, 2013, at 10:23 AM, larry google groups wrote: I am building a web app. I just included Compojure and Friend as dependencies, and one of these, in turn, relies on Google Guice. I type: lein uberjar and I get a whole lot of output which includes: Could not find artifact com.google.code.guice:guice:pom:2.0 in central (http://repo1.maven.org/maven2) Could not find artifact com.google.code.guice:guice:pom:2.0 in clojars (https://clojars.org/repo/) Could not transfer artifact com.google.code.guice:guice:pom:2.0 from/ to guice (http://guice-maven.googlecode.com/svn/trunk):Not authorized, ReasonPhrase:Authorization Required. Could not find artifact com.google.code.guice:guice:pom:2.0 in alchim.snapshots (http://alchim.sf.net/download/snapshots) Check :dependencies and :repositories for typos. It's possible the specified jar is not in any repository. If so, see Free-floating Jars underhttp://j.mp/repeatability Uberjar aborting because jar/compilation failed: Could not resolve dependencies I find instructions for installing guice here: http://code.google.com/p/roboguice/issues/detail?id=38 I download guice from here: http://code.google.com/p/google-guice/downloads/list On my Mac, at the command line, I then run: mvn install:install-file -DgroupId=com.google.android.maps - DartifactId=maps -Dversion=3_r3 -Dpackaging=jar -Dfile=/Users/lkrubner/ Downloads/guice-2.0/guice-2.0.jar and I get: [INFO] Scanning for projects... [INFO] [INFO] [INFO] Building Maven Stub Project (No POM) 1 [INFO] [INFO] [INFO] --- maven-install-plugin:2.3.1:install-file (default-cli) @ standalone-pom --- [INFO] Installing /Users/lkrubner/Downloads/guice-2.0/guice-2.0.jar to /Users/lkrubner/.m2/repository/com/google/android/maps/maps/3_r3/ maps-3_r3.jar [INFO] [INFO] BUILD SUCCESS [INFO] [INFO] Total time: 0.718s [INFO] Finished at: Mon Jan 14 10:18:44 EST 2013 [INFO] Final Memory: 4M/92M [INFO] I then again run: lein uberjar and again I get: lein uberjar Could not find artifact com.google.code.guice:guice:pom:2.0 in central (http://repo1.maven.org/maven2) Could not find artifact com.google.code.guice:guice:pom:2.0 in clojars (https://clojars.org/repo/) Could not transfer artifact com.google.code.guice:guice:pom:2.0 from/ to guice (http://guice-maven.googlecode.com/svn/trunk):Not authorized, ReasonPhrase:Authorization Required. Could not find artifact com.google.code.guice:guice:pom:2.0 in alchim.snapshots (http://alchim.sf.net/download/snapshots) Check :dependencies and :repositories for typos. It's possible the specified jar is not in any repository. If so, see Free-floating Jars underhttp://j.mp/repeatability Uberjar aborting because jar/compilation failed: Could not resolve dependencies What am I doing wrong? -- You received this message
Re: what Jetty jars do I need for WebSockets?
Thank you. I will do that. I find that trying to learn both Clojure and the JVM (which automatically entails parts of the Java eco-system), is a little overwhelming at first. But I suppose that is true of learning anything new. On Sunday, December 9, 2012 9:04:44 PM UTC-5, Jay Fields wrote: I don't have the answer, but I would strongly recommend webbit: https://github.com/webbit/webbit I've been using it for quite awhile and I've been very happy with it. On Sun, Dec 9, 2012 at 8:55 PM, larry google groups lawrenc...@gmail.com javascript: wrote: I am still fairly new to Clojure, the JVM and Java, so I get lost trying to read some of the stuff that assumes knowledge of any of those 3. I want to build a Clojure app using Jetty and offering WebSocket connections. I have already built an app with Clojure and Jetty, so that part is easy. But I look here: http://wiki.eclipse.org/index.php?title=Jetty/Feature/WebSocketsoldid=297254 and it says I should download 3 jars: wget -O jetty-all.jar --user-agent=demo \ http://repo2.maven.org/maven2/org/eclipse/jetty/aggregate/jetty-all/7.6.2.v20120308/jetty-all-7.6.2.v20120308.jar wget -O jetty-websocket-tests.jar --user-agent=demo \ http://repo2.maven.org/maven2/org/eclipse/jetty/jetty-websocket/7.6.2.v20120308/jetty-websocket-7.6.2.v20120308-tests.jar wget --user-agent=demo \ http://repo2.maven.org/maven2/javax/servlet/servlet-api/2.5/servlet-api-2.5.jar I assume I put these in project.clj? I already have stuff in there like: :dependencies [[org.clojure/clojure 1.3.0] [net.cgrand/moustache 1.1.0] [ring 1.1.5] [ring/ring-jetty-adapter 1.1.5] etc Searching on this topic brought me to this: https://groups.google.com/forum/?fromgroups=#!topic/ring-clojure/JD9FLJFTVsg But that is 2 years old. I have not found anything specific to ring/jetty/websockets that is recent. Can anyone point me to documentation that might lead me out of my confusion? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com javascript: For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: what Jetty jars do I need for WebSockets?
The upside of using Java is that it's very widely documented. Also, I find people on this mailing list to be very helpful. Nonetheless, I'm sure it's frustrating to have to learn about Java when you just want to do some Clojure. I've previously written about using Webbit with Clojure: http://blog.jayfields.com/2011/02/clojure-web-socket-introduction.html afaik, the post should be up to date and still working. Feel free to email me if you run into any issues. On Mon, Dec 10, 2012 at 8:25 AM, larry google groups lawrencecloj...@gmail.com wrote: Thank you. I will do that. I find that trying to learn both Clojure and the JVM (which automatically entails parts of the Java eco-system), is a little overwhelming at first. But I suppose that is true of learning anything new. On Sunday, December 9, 2012 9:04:44 PM UTC-5, Jay Fields wrote: I don't have the answer, but I would strongly recommend webbit: https://github.com/webbit/webbit I've been using it for quite awhile and I've been very happy with it. On Sun, Dec 9, 2012 at 8:55 PM, larry google groups lawrenc...@gmail.com wrote: I am still fairly new to Clojure, the JVM and Java, so I get lost trying to read some of the stuff that assumes knowledge of any of those 3. I want to build a Clojure app using Jetty and offering WebSocket connections. I have already built an app with Clojure and Jetty, so that part is easy. But I look here: http://wiki.eclipse.org/index.php?title=Jetty/Feature/WebSocketsoldid=297254 and it says I should download 3 jars: wget -O jetty-all.jar --user-agent=demo \ http://repo2.maven.org/maven2/org/eclipse/jetty/aggregate/jetty-all/7.6.2.v20120308/jetty-all-7.6.2.v20120308.jar wget -O jetty-websocket-tests.jar --user-agent=demo \ http://repo2.maven.org/maven2/org/eclipse/jetty/jetty-websocket/7.6.2.v20120308/jetty-websocket-7.6.2.v20120308-tests.jar wget --user-agent=demo \ http://repo2.maven.org/maven2/javax/servlet/servlet-api/2.5/servlet-api-2.5.jar I assume I put these in project.clj? I already have stuff in there like: :dependencies [[org.clojure/clojure 1.3.0] [net.cgrand/moustache 1.1.0] [ring 1.1.5] [ring/ring-jetty-adapter 1.1.5] etc Searching on this topic brought me to this: https://groups.google.com/forum/?fromgroups=#!topic/ring-clojure/JD9FLJFTVsg But that is 2 years old. I have not found anything specific to ring/jetty/websockets that is recent. Can anyone point me to documentation that might lead me out of my confusion? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+u...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
what Jetty jars do I need for WebSockets?
I am still fairly new to Clojure, the JVM and Java, so I get lost trying to read some of the stuff that assumes knowledge of any of those 3. I want to build a Clojure app using Jetty and offering WebSocket connections. I have already built an app with Clojure and Jetty, so that part is easy. But I look here: http://wiki.eclipse.org/index.php?title=Jetty/Feature/WebSocketsoldid=297254 and it says I should download 3 jars: wget -O jetty-all.jar --user-agent=demo \ http://repo2.maven.org/maven2/org/eclipse/jetty/aggregate/jetty-all/7.6.2.v20120308/jetty-all-7.6.2.v20120308.jarwget -O jetty-websocket-tests.jar --user-agent=demo \ http://repo2.maven.org/maven2/org/eclipse/jetty/jetty-websocket/7.6.2.v20120308/jetty-websocket-7.6.2.v20120308-tests.jarwget --user-agent=demo \ http://repo2.maven.org/maven2/javax/servlet/servlet-api/2.5/servlet-api-2.5.jar I assume I put these in project.clj? I already have stuff in there like: :dependencies [[org.clojure/clojure 1.3.0] [net.cgrand/moustache 1.1.0] [ring 1.1.5] [ring/ring-jetty-adapter 1.1.5] etc Searching on this topic brought me to this: https://groups.google.com/forum/?fromgroups=#!topic/ring-clojure/JD9FLJFTVsg But that is 2 years old. I have not found anything specific to ring/jetty/websockets that is recent. Can anyone point me to documentation that might lead me out of my confusion? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: what Jetty jars do I need for WebSockets?
I don't have the answer, but I would strongly recommend webbit: https://github.com/webbit/webbit I've been using it for quite awhile and I've been very happy with it. On Sun, Dec 9, 2012 at 8:55 PM, larry google groups lawrencecloj...@gmail.com wrote: I am still fairly new to Clojure, the JVM and Java, so I get lost trying to read some of the stuff that assumes knowledge of any of those 3. I want to build a Clojure app using Jetty and offering WebSocket connections. I have already built an app with Clojure and Jetty, so that part is easy. But I look here: http://wiki.eclipse.org/index.php?title=Jetty/Feature/WebSocketsoldid=297254 and it says I should download 3 jars: wget -O jetty-all.jar --user-agent=demo \ http://repo2.maven.org/maven2/org/eclipse/jetty/aggregate/jetty-all/7.6.2.v20120308/jetty-all-7.6.2.v20120308.jar wget -O jetty-websocket-tests.jar --user-agent=demo \ http://repo2.maven.org/maven2/org/eclipse/jetty/jetty-websocket/7.6.2.v20120308/jetty-websocket-7.6.2.v20120308-tests.jar wget --user-agent=demo \ http://repo2.maven.org/maven2/javax/servlet/servlet-api/2.5/servlet-api-2.5.jar I assume I put these in project.clj? I already have stuff in there like: :dependencies [[org.clojure/clojure 1.3.0] [net.cgrand/moustache 1.1.0] [ring 1.1.5] [ring/ring-jetty-adapter 1.1.5] etc Searching on this topic brought me to this: https://groups.google.com/forum/?fromgroups=#!topic/ring-clojure/JD9FLJFTVsg But that is 2 years old. I have not found anything specific to ring/jetty/websockets that is recent. Can anyone point me to documentation that might lead me out of my confusion? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
How do ClojureScript protocol functions work?
While digging through the CLJS sources I've seen that protocols use some sort of odd bitmask optimization. Is this documented anywhere? Or as a more general question, is the way protocols are implemented in CLJS documented at all? Thanks, Timothy -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: how do I evaluate this lazy sequence?
I'm just a
bit amazed that you would go away and write clojure code to consume JSON
and all that, without realising that data-structures in Clojure are
immutable!
That part is obvious enough, but I thought the new data structures
returned from assoc were being handed to map which then, in turn,
returned a new data structure where all values had been updated with
the values from assoc. But clearly, I got the syntax badly wrong.
On Sep 27, 2:21 pm, Jim - FooBar(); jimpil1...@gmail.com wrote:
the 2 previous responses answered your question perfectly ...I'm just a
bit amazed that you would go away and write clojure code to consume JSON
and all that, without realising that data-structures in Clojure are
immutable! I think we can all agree they are *the* cornerstone of
Clojure. It is a bit alien at first but it does pay off in the long
run... If you absolutely need to stick with your code style (mutability
not-recommended in general) use a java HashMap instead...
Jim
ps: i recently used a cheshire without any problems :-)
On 27/09/12 18:53, gaz jones wrote:
Couple of initial things, Clojure has immutable data structures so
when you call for example 'assoc' it will return you a new map with
the new values assoc'd. It will not mutate the original, so:
(let [foo {}]
(assoc foo :a 1)
(assoc foo :b 2)
foo)
Will return {}. You need to do something like:
(- {}
(assoc :a 1)
(assoc :b 2))
= {:a 1 :b 2}
FYI, assoc takes multiple kvps:
(assoc {} :a 1 :b 2)
Also, to return valid JSON, you cannot simply call 'str' on the map.
You need to use a library likehttps://github.com/dakrone/cheshireor
https://github.com/clojure/data.jsonand encode the map as JSON.
Perhaps you could illustrate the data structure you are holding inside
of @registry, and the structure of the JSON you would like to emit.
Laziness is not an issue here.
On Thu, Sep 27, 2012 at 12:02 PM, larry google groups
lawrencecloj...@gmail.com wrote:
I would like 2 types of advice:
1.) an answer to this specific question
2.) advice on how one is suppose to debug mysteries likes this
I have a simple web app that serves some data (hopefully in JSON
format, but at the moment I will accept anything at all). The app uses
Ring and Moustache and outputs the data.
We start with a simple atom:
(def registry (atom {}))
We put some data in this atom. And then we output it. But I have had
great difficulty getting anything to appear on the screen. Assuming
the problem was with the fact the main sequence was lazy, I added in
doall everywhere it made sense. But I still can not get anything to
work:
(defn current-users [request]
The default action of this app. Add new users to the registry, and
delete the ones that are more than 15 seconds old
(let [this-users-params (:params request)
final-map-for-output {}]
(add-to-logged-in-registry this-users-params)
(remove-old-registrants)
(response (apply str (into {}
(doall
(map (fn [each-user-map]
(doall
(let [inner-details (second each-
user-map)]
(assoc final-map-for-output
username (get inner-details username nothing found for user))
(assoc final-map-for-output
updated (get inner-details updated nothing found for updated))
final-map-for-output)))
@registry)))
The various variations I have tried on this have either given me a
blank white page or:
{}
Nothing else.
I used to do simply:
(response (apply str (doall @registry)
This worked fine. But it did not output valid JSON, so I wanted to
change the format. But I have not been able to get anything to appear
on screen.
Suggestions?
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Questions regarding do form
Hello all, I am new to clojure and I have two questions about do and the way it should be used. *Question 1: Which of the following two functions is more idiomatic and why? Both functions produce the same result.* code (defn my-fn [java-object] (. java-object firstFunc) (. java-object secondFunc) (. java-object thirdFunc) java-object) /code code (defn my-fn [java-object] (do (. java-object firstFunc) (. java-object secondFunc ) (. java-object thirdFunc ) java-object)) /code *Question 2: Again, which one is more idiomatic and why? Both functions produce the same result.* * * code (defn my-fn [java-object bar] (let [bar-bar (. java-object getSomething) _ (if (not (is-bar? bar)) (. java-object (setSomething bar-bar)))] java-object)) /code code (defn my-fn [java-object bar] (let [bar-bar (. java-object getSomething)] (do (if (not (is-bar? bar)) (. java-object (setSomething bar-bar))) java-object))) /code -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Questions regarding do form
Hi, Am Donnerstag, 27. September 2012 12:16:41 UTC+2 schrieb arekanderu: I am new to clojure and I have two questions about do and the way it should be used. *Question 1: Which of the following two functions is more idiomatic and why? Both functions produce the same result.* code (defn my-fn [java-object] (. java-object firstFunc) (. java-object secondFunc) (. java-object thirdFunc) java-object) /code The first because defn includes an implicit do. So the second example is actually (do (do ...)). In this case you could also use doto: (defn my-fn [pojo] (doto pojo .firstFunc .secondFunc .thirdFunc)) *Question 2: Again, which one is more idiomatic and why? Both functions produce the same result.* * * code (defn my-fn [java-object bar] (let [bar-bar (. java-object getSomething) _ (if (not (is-bar? bar)) (. java-object (setSomething bar-bar)))] java-object)) /code code (defn my-fn [java-object bar] (let [bar-bar (. java-object getSomething)] (do (if (not (is-bar? bar)) (. java-object (setSomething bar-bar))) java-object))) /code The third: (defn my-fn [pojo bar] (let [bar-bar (.getSomething pojo)] (when-not (is-bar? bar) (.setSomething pojo bar-bar)) pojo))) let also (just like defn) includes an implicit do for the body. Hope this helps. Kind regards Meikel -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Questions regarding do form
Thank you Meikel for your so helpful replies. On Thursday, September 27, 2012 4:19:44 PM UTC+3, Meikel Brandmeyer (kotarak) wrote: Hi, Am Donnerstag, 27. September 2012 12:16:41 UTC+2 schrieb arekanderu: I am new to clojure and I have two questions about do and the way it should be used. *Question 1: Which of the following two functions is more idiomatic and why? Both functions produce the same result.* code (defn my-fn [java-object] (. java-object firstFunc) (. java-object secondFunc) (. java-object thirdFunc) java-object) /code The first because defn includes an implicit do. So the second example is actually (do (do ...)). In this case you could also use doto: (defn my-fn [pojo] (doto pojo .firstFunc .secondFunc .thirdFunc)) *Question 2: Again, which one is more idiomatic and why? Both functions produce the same result.* * * code (defn my-fn [java-object bar] (let [bar-bar (. java-object getSomething) _ (if (not (is-bar? bar)) (. java-object (setSomething bar-bar)))] java-object)) /code code (defn my-fn [java-object bar] (let [bar-bar (. java-object getSomething)] (do (if (not (is-bar? bar)) (. java-object (setSomething bar-bar))) java-object))) /code The third: (defn my-fn [pojo bar] (let [bar-bar (.getSomething pojo)] (when-not (is-bar? bar) (.setSomething pojo bar-bar)) pojo))) let also (just like defn) includes an implicit do for the body. Hope this helps. Kind regards Meikel -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Questions regarding do form
On Thu, Sep 27, 2012 at 8:26 AM, arekanderu arekand...@gmail.com wrote: Thank you Meikel for your so helpful replies. Thanks also from a lurker, to whom these facts were a useful surprise: I'd wondered the same myself. Cheers, R On Thursday, September 27, 2012 4:19:44 PM UTC+3, Meikel Brandmeyer (kotarak) wrote: Hi, Am Donnerstag, 27. September 2012 12:16:41 UTC+2 schrieb arekanderu: I am new to clojure and I have two questions about do and the way it should be used. Question 1: Which of the following two functions is more idiomatic and why? Both functions produce the same result. code (defn my-fn [java-object] (. java-object firstFunc) (. java-object secondFunc) (. java-object thirdFunc) java-object) /code The first because defn includes an implicit do. So the second example is actually (do (do ...)). In this case you could also use doto: (defn my-fn [pojo] (doto pojo .firstFunc .secondFunc .thirdFunc)) Question 2: Again, which one is more idiomatic and why? Both functions produce the same result. code (defn my-fn [java-object bar] (let [bar-bar (. java-object getSomething) _ (if (not (is-bar? bar)) (. java-object (setSomething bar-bar)))] java-object)) /code code (defn my-fn [java-object bar] (let [bar-bar (. java-object getSomething)] (do (if (not (is-bar? bar)) (. java-object (setSomething bar-bar))) java-object))) /code The third: (defn my-fn [pojo bar] (let [bar-bar (.getSomething pojo)] (when-not (is-bar? bar) (.setSomething pojo bar-bar)) pojo))) let also (just like defn) includes an implicit do for the body. Hope this helps. Kind regards Meikel -- Russell Whitaker http://twitter.com/OrthoNormalRuss / http://orthonormalruss.blogspot.com/ http://www.linkedin.com/pub/russell-whitaker/0/b86/329 -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Questions regarding do form
I'm reading _The Joy of Clojure_ right now, and they touch on it, which is nice coming from Scheme/Racket. On Thu, Sep 27, 2012 at 10:40 AM, Russell Whitaker russell.whita...@gmail.com wrote: On Thu, Sep 27, 2012 at 8:26 AM, arekanderu arekand...@gmail.com wrote: Thank you Meikel for your so helpful replies. Thanks also from a lurker, to whom these facts were a useful surprise: I'd wondered the same myself. Cheers, R On Thursday, September 27, 2012 4:19:44 PM UTC+3, Meikel Brandmeyer (kotarak) wrote: Hi, Am Donnerstag, 27. September 2012 12:16:41 UTC+2 schrieb arekanderu: I am new to clojure and I have two questions about do and the way it should be used. Question 1: Which of the following two functions is more idiomatic and why? Both functions produce the same result. code (defn my-fn [java-object] (. java-object firstFunc) (. java-object secondFunc) (. java-object thirdFunc) java-object) /code The first because defn includes an implicit do. So the second example is actually (do (do ...)). In this case you could also use doto: (defn my-fn [pojo] (doto pojo .firstFunc .secondFunc .thirdFunc)) Question 2: Again, which one is more idiomatic and why? Both functions produce the same result. code (defn my-fn [java-object bar] (let [bar-bar (. java-object getSomething) _ (if (not (is-bar? bar)) (. java-object (setSomething bar-bar)))] java-object)) /code code (defn my-fn [java-object bar] (let [bar-bar (. java-object getSomething)] (do (if (not (is-bar? bar)) (. java-object (setSomething bar-bar))) java-object))) /code The third: (defn my-fn [pojo bar] (let [bar-bar (.getSomething pojo)] (when-not (is-bar? bar) (.setSomething pojo bar-bar)) pojo))) let also (just like defn) includes an implicit do for the body. Hope this helps. Kind regards Meikel -- Russell Whitaker http://twitter.com/OrthoNormalRuss / http://orthonormalruss.blogspot.com/ http://www.linkedin.com/pub/russell-whitaker/0/b86/329 -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- ((λ (x) (x x)) (λ (x) (x x))) http://www.wisdomandwonder.com/ ACM, AMA, COG, IEEE -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Questions regarding do form
Thanks for mentioning doto--hadn't seen that before. Particularly, I think some of my unit tests can be made significantly more readable with that. Wes On Thu, Sep 27, 2012 at 11:40 AM, Russell Whitaker russell.whita...@gmail.com wrote: On Thu, Sep 27, 2012 at 8:26 AM, arekanderu arekand...@gmail.com wrote: Thank you Meikel for your so helpful replies. Thanks also from a lurker, to whom these facts were a useful surprise: I'd wondered the same myself. Cheers, R On Thursday, September 27, 2012 4:19:44 PM UTC+3, Meikel Brandmeyer (kotarak) wrote: Hi, Am Donnerstag, 27. September 2012 12:16:41 UTC+2 schrieb arekanderu: I am new to clojure and I have two questions about do and the way it should be used. Question 1: Which of the following two functions is more idiomatic and why? Both functions produce the same result. code (defn my-fn [java-object] (. java-object firstFunc) (. java-object secondFunc) (. java-object thirdFunc) java-object) /code The first because defn includes an implicit do. So the second example is actually (do (do ...)). In this case you could also use doto: (defn my-fn [pojo] (doto pojo .firstFunc .secondFunc .thirdFunc)) Question 2: Again, which one is more idiomatic and why? Both functions produce the same result. code (defn my-fn [java-object bar] (let [bar-bar (. java-object getSomething) _ (if (not (is-bar? bar)) (. java-object (setSomething bar-bar)))] java-object)) /code code (defn my-fn [java-object bar] (let [bar-bar (. java-object getSomething)] (do (if (not (is-bar? bar)) (. java-object (setSomething bar-bar))) java-object))) /code The third: (defn my-fn [pojo bar] (let [bar-bar (.getSomething pojo)] (when-not (is-bar? bar) (.setSomething pojo bar-bar)) pojo))) let also (just like defn) includes an implicit do for the body. Hope this helps. Kind regards Meikel -- Russell Whitaker http://twitter.com/OrthoNormalRuss / http://orthonormalruss.blogspot.com/ http://www.linkedin.com/pub/russell-whitaker/0/b86/329 -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
how do I evaluate this lazy sequence?
I would like 2 types of advice:
1.) an answer to this specific question
2.) advice on how one is suppose to debug mysteries likes this
I have a simple web app that serves some data (hopefully in JSON
format, but at the moment I will accept anything at all). The app uses
Ring and Moustache and outputs the data.
We start with a simple atom:
(def registry (atom {}))
We put some data in this atom. And then we output it. But I have had
great difficulty getting anything to appear on the screen. Assuming
the problem was with the fact the main sequence was lazy, I added in
doall everywhere it made sense. But I still can not get anything to
work:
(defn current-users [request]
The default action of this app. Add new users to the registry, and
delete the ones that are more than 15 seconds old
(let [this-users-params (:params request)
final-map-for-output {}]
(add-to-logged-in-registry this-users-params)
(remove-old-registrants)
(response (apply str (into {}
(doall
(map (fn [each-user-map]
(doall
(let [inner-details (second each-
user-map)]
(assoc final-map-for-output
username (get inner-details username nothing found for user))
(assoc final-map-for-output
updated (get inner-details updated nothing found for updated))
final-map-for-output)))
@registry)))
The various variations I have tried on this have either given me a
blank white page or:
{}
Nothing else.
I used to do simply:
(response (apply str (doall @registry)
This worked fine. But it did not output valid JSON, so I wanted to
change the format. But I have not been able to get anything to appear
on screen.
Suggestions?
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Re: how do I evaluate this lazy sequence?
larry google groups lawrencecloj...@gmail.com writes: We put some data in this atom. And then we output it. But I have had great difficulty getting anything to appear on the screen. Assuming the problem was with the fact the main sequence was lazy, I added in doall everywhere it made sense. But I still can not get anything to work: Your problem's here and has nothing to do with lazyness: (let [inner-details (second each-user-map)] (assoc final-map-for-output username (get inner-details username nothing found for user)) (assoc final-map-for-output updated (get inner-details updated nothing found for updated)) final-map-for-output))) assoc (and all clojure collection functions) doesn't modify the given map but it returns a new version of the given map with the new association. You simply don't use it. Maybe you want something like this in case you want to output pairs of username/inner-details, and updated/inner-details pairs. --8---cut here---start-8--- (defn current-users [request] The default action of this app. Add new users to the registry, and delete the ones that are more than 15 seconds old (let [this-users-params (:params request)] (add-to-logged-in-registry this-users-params) (remove-old-registrants) (response (apply str (mapcat (fn [each-user-map] (let [inner-details (second each-user-map)] [[username (get inner-details username nothing found for user)] [updated (get inner-details updated nothing found for updated)]])) @registry) --8---cut here---end---8--- Bye, Tassilo -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: how do I evaluate this lazy sequence?
Couple of initial things, Clojure has immutable data structures so
when you call for example 'assoc' it will return you a new map with
the new values assoc'd. It will not mutate the original, so:
(let [foo {}]
(assoc foo :a 1)
(assoc foo :b 2)
foo)
Will return {}. You need to do something like:
(- {}
(assoc :a 1)
(assoc :b 2))
= {:a 1 :b 2}
FYI, assoc takes multiple kvps:
(assoc {} :a 1 :b 2)
Also, to return valid JSON, you cannot simply call 'str' on the map.
You need to use a library like https://github.com/dakrone/cheshire or
https://github.com/clojure/data.json and encode the map as JSON.
Perhaps you could illustrate the data structure you are holding inside
of @registry, and the structure of the JSON you would like to emit.
Laziness is not an issue here.
On Thu, Sep 27, 2012 at 12:02 PM, larry google groups
lawrencecloj...@gmail.com wrote:
I would like 2 types of advice:
1.) an answer to this specific question
2.) advice on how one is suppose to debug mysteries likes this
I have a simple web app that serves some data (hopefully in JSON
format, but at the moment I will accept anything at all). The app uses
Ring and Moustache and outputs the data.
We start with a simple atom:
(def registry (atom {}))
We put some data in this atom. And then we output it. But I have had
great difficulty getting anything to appear on the screen. Assuming
the problem was with the fact the main sequence was lazy, I added in
doall everywhere it made sense. But I still can not get anything to
work:
(defn current-users [request]
The default action of this app. Add new users to the registry, and
delete the ones that are more than 15 seconds old
(let [this-users-params (:params request)
final-map-for-output {}]
(add-to-logged-in-registry this-users-params)
(remove-old-registrants)
(response (apply str (into {}
(doall
(map (fn [each-user-map]
(doall
(let [inner-details (second each-
user-map)]
(assoc final-map-for-output
username (get inner-details username nothing found for user))
(assoc final-map-for-output
updated (get inner-details updated nothing found for updated))
final-map-for-output)))
@registry)))
The various variations I have tried on this have either given me a
blank white page or:
{}
Nothing else.
I used to do simply:
(response (apply str (doall @registry)
This worked fine. But it did not output valid JSON, so I wanted to
change the format. But I have not been able to get anything to appear
on screen.
Suggestions?
--
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Re: how do I evaluate this lazy sequence?
the 2 previous responses answered your question perfectly ...I'm just a
bit amazed that you would go away and write clojure code to consume JSON
and all that, without realising that data-structures in Clojure are
immutable! I think we can all agree they are *the* cornerstone of
Clojure. It is a bit alien at first but it does pay off in the long
run... If you absolutely need to stick with your code style (mutability
not-recommended in general) use a java HashMap instead...
Jim
ps: i recently used a cheshire without any problems :-)
On 27/09/12 18:53, gaz jones wrote:
Couple of initial things, Clojure has immutable data structures so
when you call for example 'assoc' it will return you a new map with
the new values assoc'd. It will not mutate the original, so:
(let [foo {}]
(assoc foo :a 1)
(assoc foo :b 2)
foo)
Will return {}. You need to do something like:
(- {}
(assoc :a 1)
(assoc :b 2))
= {:a 1 :b 2}
FYI, assoc takes multiple kvps:
(assoc {} :a 1 :b 2)
Also, to return valid JSON, you cannot simply call 'str' on the map.
You need to use a library like https://github.com/dakrone/cheshire or
https://github.com/clojure/data.json and encode the map as JSON.
Perhaps you could illustrate the data structure you are holding inside
of @registry, and the structure of the JSON you would like to emit.
Laziness is not an issue here.
On Thu, Sep 27, 2012 at 12:02 PM, larry google groups
lawrencecloj...@gmail.com wrote:
I would like 2 types of advice:
1.) an answer to this specific question
2.) advice on how one is suppose to debug mysteries likes this
I have a simple web app that serves some data (hopefully in JSON
format, but at the moment I will accept anything at all). The app uses
Ring and Moustache and outputs the data.
We start with a simple atom:
(def registry (atom {}))
We put some data in this atom. And then we output it. But I have had
great difficulty getting anything to appear on the screen. Assuming
the problem was with the fact the main sequence was lazy, I added in
doall everywhere it made sense. But I still can not get anything to
work:
(defn current-users [request]
The default action of this app. Add new users to the registry, and
delete the ones that are more than 15 seconds old
(let [this-users-params (:params request)
final-map-for-output {}]
(add-to-logged-in-registry this-users-params)
(remove-old-registrants)
(response (apply str (into {}
(doall
(map (fn [each-user-map]
(doall
(let [inner-details (second each-
user-map)]
(assoc final-map-for-output
username (get inner-details username nothing found for user))
(assoc final-map-for-output
updated (get inner-details updated nothing found for updated))
final-map-for-output)))
@registry)))
The various variations I have tried on this have either given me a
blank white page or:
{}
Nothing else.
I used to do simply:
(response (apply str (doall @registry)
This worked fine. But it did not output valid JSON, so I wanted to
change the format. But I have not been able to get anything to appear
on screen.
Suggestions?
--
You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
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Re: how do we go about promoting new clojure libraries?
http://dev.clojure.org/display/community/Libraries is unorganized and out of date - volunteers welcome. James Reeves created http://www.clojure-toolbox.com/ -S -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: how do we go about promoting new clojure libraries?
On Thu, Sep 27, 2012 at 12:31 AM, Stuart Sierra the.stuart.sie...@gmail.com wrote: http://dev.clojure.org/display/community/Libraries is unorganized and out of date - volunteers welcome. I am interested in keeping the clojure libraries up to date. Can you give me some ideas what are the tasks that needs to be done? So that I have some idea about it. Thanks. James Reeves created http://www.clojure-toolbox.com/ -S -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: how do we go about promoting new clojure libraries?
On Wednesday, September 26, 2012 3:05:08 PM UTC-4, Mayank Jain wrote: I am interested in keeping the clojure libraries up to date. Can you give me some ideas what are the tasks that needs to be done? So that I have some idea about it. 1. Send in a signed Clojure Contributor Agreement: http://clojure.org/contributing 2. You will receive an editor account on http://dev.clojure.org/ 3. Start editing! Thanks! -S -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: how do we go about promoting new clojure libraries?
@Stuart Thanks. But it says Send your signed agreement via postal mail to: Do I need to send it via postal mail? (I stay in India) On Thu, Sep 27, 2012 at 12:38 AM, Stuart Sierra the.stuart.sie...@gmail.com wrote: On Wednesday, September 26, 2012 3:05:08 PM UTC-4, Mayank Jain wrote: I am interested in keeping the clojure libraries up to date. Can you give me some ideas what are the tasks that needs to be done? So that I have some idea about it. 1. Send in a signed Clojure Contributor Agreement: http://clojure.org/contributing 2. You will receive an editor account on http://dev.clojure.org/ 3. Start editing! Thanks! -S -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: how do we go about promoting new clojure libraries?
2012/9/26 Mayank Jain firesof...@gmail.com Thanks. But it says Send your signed agreement via postal mail to: Do I need to send it via postal mail? (I stay in India) Unfortunately, yes. Clojure uses a fine crafted 16th century contributor agreement process that does not take into account that there may be potential contributors outside of North America and western Europe. Please cast your vote in https://groups.google.com/forum/?fromgroups=#!searchin/clojure/evolving$20the$20clojure/clojure/GnfAK6beMN8/DiMIbvYWhVkJ so it can be replaced with something that makes sense in the year 2012. -- MK -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: how do we go about promoting new clojure libraries?
2012/9/26 Stuart Sierra the.stuart.sie...@gmail.com http://dev.clojure.org/display/community/Libraries is unorganized and out of date - volunteers welcome. Stuart, No, that's not how it works. You *first* make contribution process easy, *then* ask people to volunteer. Not the other way around, no. -- MK http://github.com/michaelklishin http://twitter.com/michaelklishin -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: how do we go about promoting new clojure libraries?
On Wed, Sep 26, 2012 at 12:35 PM, Michael Klishin michael.s.klis...@gmail.com wrote: Unfortunately, yes. Clojure uses a fine crafted 16th century contributor agreement process that does not take into account that there may be potential contributors outside of North America and western Europe. Please cast your vote in https://groups.google.com/forum/?fromgroups=#!searchin/clojure/evolving$20the$20clojure/clojure/GnfAK6beMN8/DiMIbvYWhVkJ so it can be replaced with something that makes sense in the year 2012. Michael, IMHO it's not that archaic. There are _many_ FOSS projects which mandate a CLA of some sort (even the hippest projects like Node.js have this http://nodejs.org/cla.html). The only contention is the snail-mailing part, which I understand is cumbersome. Chef guys have opted to use Echosign for the signing purpose (http://wiki.opscode.com/display/chef/How+to+Contribute) and I think it's a decent compromise. Regards, BG -- Baishampayan Ghose b.ghose at gmail.com -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
