Thin clojure wrapper for zeromq

2011-12-18 Thread Andreas Kostler
Hi All,
For a little hobby project I found myself looking for a clojure
wrapper for 0MQ. clojure-zeromq is stale and doesn't support zeromq 
3.0.0 so I rolled my own: https://github.com/AndreasKostler/clj-0MQ

It's in a very early stage of development but most of the
functionality is there. Furthermore, there are a bunch of working
examples for you to play with.

Any feedback is very welcome.

Cheers
Andreas


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Re: ANN: Midje 1.3.0

2011-12-18 Thread eniotna
Hi,

I do not know if it's because i started writing directly clojure with facts
but i find it really intuitive.
Midje, there is a fact for that :d

Thanks for your great work

Antoine
2011/12/16 ronen nark...@gmail.com

 Joining the congrats, one of the must have tools for any Clojure
 project

 Ronen

 On Dec 14, 8:01 am, Denis Labaye denis.lab...@gmail.com wrote:
  Midje is getting better and better.
 
  Congrats!
 
 
 
 
 
 
 
  On Mon, Dec 12, 2011 at 5:41 PM, Brian Marick mar...@exampler.com
 wrote:
   Midje 1.3's most important feature is compatibility with Clojure 1.3.
  https://github.com/marick/Midje
 
   Midje is a test framework for Clojure that supports top-down as well as
   bottom-up testing,  encourages readable tests, provides a smooth
 migration
   path from clojure.test, supports a balance between abstraction and
   concreteness, and tries to be gracious in its treatment of its user.
 
   Other major changes in 1.3 are:
 
   * Colorized output
https://github.com/marick/Midje/wiki/Colorizing
 
   * Monitoring and rerunning changed files (autotest/lazytest)
(under Leiningen:https://github.com/marick/Midje/wiki/Lein-midje)
 
   * Partial prerequisites (makes it easier to add new behavior to
 existing
   code)
https://github.com/marick/Midje/wiki/Partial-prerequisites
 
   * Data prerequisites (avoiding overcommitment to data representation)
https://github.com/marick/Midje/wiki/Data-prerequisites
 
   More here:https://github.com/marick/Midje/blob/master/HISTORY.md
 
   Thanks especially to Alex Baranosky, who did a lot of work on this
 release.
 
   Enjoy.
 
   -
   Brian Marick, Artisanal Labrador
   Now working athttp://path11.com
   Contract programming in Ruby and Clojure
   Occasional consulting on Agile

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Reuse of generic Clojure/ClojureScript code? Part 2

2011-12-18 Thread Dave Sann
Following on from :

https://groups.google.com/d/topic/clojure/IngUs2TUJV8/discussion

I modified Chris Granger's cljs-watch to facilitate easy use of generic clj 
files as ClojureScript files.

cljs-watch code is here: https://github.com/davesann/cljs-watch
An example Noir project layout is here: 
https://github.com/davesann/generic-clojurescript-compile-example

The method is similar to that outlined in my original post, using path 
naming conventions to distinguish jvm specific, cljs specific, and generic 
files. I expect that some may not like the naming conventions. There are 
possible alternatives to this method - but, for me, these would require 
changes to Leiningen to allow for multiple Clojure src directories. 
(multiple src directories do not seem possible at this time.)

In reference to some of the other discussions I have seen, I am not a 
strong fan of the :generic marking in clj files. Essentially because the 
file has to be opened and parsed to determine whether it should be included 
in the build. I think that this may not be such a good idea for larger 
builds. I may be wrong.

Let me know If you find this useful

Regards

Dave

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Re: UnsatisfiedLinkError using clojure.lang.RT/loadLibrary

2011-12-18 Thread Baishampayan Ghose
It seems the JVM is unable to locate certain shared library in the
path you specified. Can you see whether that .so file actually exists
in that directory?

This is what the VTK wiki says about this type of errors -
http://www.vtk.org/Wiki/VTK/FAQ#When_I_try_to_run_my_program_with_Java-wrapped_VTK.2C_why_do_I_get_.22java.lang.UnsatisfiedLinkError:_no_vtkSomeLibraryName.22.3F

Regards,
BG

On Sun, Dec 18, 2011 at 1:00 AM, Antonio Recio amdx6...@gmail.com wrote:
 When I try to load native libraries in the System ClassLoader I get an error
 of cannot open shared object file, and I don't know how to solve it.

 In linux in REPL :
 clojure java -Djava.library.path=/usr/local/lib/vtk-5.9/ -cp
 /usr/share/java/clojure.jar:/usr/local/lib/vtk-5.9/java/vtk.jar clojure.main

 when I execute this code :
 (ns project.core
   (:import (javax.swing JButton JFrame JPanel)
            (vtk vtkConeSource vtkPolyDataMapper vtkRenderWindow
                 vtkRenderWindowInteractor vtkCamera vtkActor vtkRenderer
                 vtkInteractorStyleTrackballCamera)))

 (clojure.lang.RT/loadLibrary vtkCommonJava)

 I obtain this error :
 UnsatisfiedLinkError /usr/local/lib/vtk-5.9/libvtkCommonJava.so.5.9.0:
 libvtkCommon.so.5.9: cannot open shared object file: No such file or
 directory  java.lang.ClassLoader$NativeLibrary.load (ClassLoader.java:-2)

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b.ghose at gmail.com

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Re: UnsatisfiedLinkError using clojure.lang.RT/loadLibrary

2011-12-18 Thread Dave Ray
java.library.path is only good for the first layer of libraries you
load. Any dependent libs (like libvtkCommon.so) are loaded with the
normal dynamic loading provided by the OS. So, i think there's two
options:

* Just use LD_LIBRARY_PATH env variable (or OS equivalent) and don't
bother with java.library.path.
* Make sure all the libs are loaded manually in the right order:

   (clojure.lang.RT/loadLibrary vtkCommon)
   (clojure.lang.RT/loadLibrary vtkCommonJava)

Now the vtkCommon lib is already loaded before vtkCommonJava. Of
course, this means you have to figure out the deps, sort them, and
deal with changes over time. Good times.

Hope this helps,

Dave

On Sun, Dec 18, 2011 at 11:20 AM, Baishampayan Ghose b.gh...@gmail.com wrote:
 It seems the JVM is unable to locate certain shared library in the
 path you specified. Can you see whether that .so file actually exists
 in that directory?

 This is what the VTK wiki says about this type of errors -
 http://www.vtk.org/Wiki/VTK/FAQ#When_I_try_to_run_my_program_with_Java-wrapped_VTK.2C_why_do_I_get_.22java.lang.UnsatisfiedLinkError:_no_vtkSomeLibraryName.22.3F

 Regards,
 BG

 On Sun, Dec 18, 2011 at 1:00 AM, Antonio Recio amdx6...@gmail.com wrote:
 When I try to load native libraries in the System ClassLoader I get an error
 of cannot open shared object file, and I don't know how to solve it.

 In linux in REPL :
 clojure java -Djava.library.path=/usr/local/lib/vtk-5.9/ -cp
 /usr/share/java/clojure.jar:/usr/local/lib/vtk-5.9/java/vtk.jar clojure.main

 when I execute this code :
 (ns project.core
   (:import (javax.swing JButton JFrame JPanel)
            (vtk vtkConeSource vtkPolyDataMapper vtkRenderWindow
                 vtkRenderWindowInteractor vtkCamera vtkActor vtkRenderer
                 vtkInteractorStyleTrackballCamera)))

 (clojure.lang.RT/loadLibrary vtkCommonJava)

 I obtain this error :
 UnsatisfiedLinkError /usr/local/lib/vtk-5.9/libvtkCommonJava.so.5.9.0:
 libvtkCommon.so.5.9: cannot open shared object file: No such file or
 directory  java.lang.ClassLoader$NativeLibrary.load (ClassLoader.java:-2)

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 b.ghose at gmail.com

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defrecord based on runtime metadata?

2011-12-18 Thread Bill Robertson
I'm trying to define records based on meta data read in at runtime,
and I'm attempting to write a function that extracts name and attrs
and passes them to defrecord, but I don't understand how to
dynamically create the symbol for the record name.

e.g.

user= (defrecord (symbol foo bar) [a b])
java.lang.ClassCastException: clojure.lang.PersistentList cannot be
cast to clojure.lang.Symbol (NO_SOURCE_FILE:5)

Attempting to define fields in any way that I can guess at fail.

e.g.

user= (def fields [(symbol a)])
#'user/fields
user= (defrecord foo fields)
IllegalArgumentException Don't know how to create ISeq from:
clojure.lang.Symbol  clojure.lang.RT.seqFrom (RT.java:487)
user= (defrecord foo (var fields))
user.foo
user= (user/map-foo {:a 67})   ;; funny
#user.foo{:var nil, :fields nil, :a 67}

Short of generating a string and calling eval on it, is this possible?

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ClojureScript: Error when calling require in repljs REPL.

2011-12-18 Thread Fiel Cabral
I'm trying to learn ClojureScript and I get this error when calling
require in the repljs REPL:

(I ran these commands after cloning the git repo last night and
running script/bootstrap)

./script/repljs
Type:  :cljs/quit  to quit
ClojureScript:cljs.user (+ 1 1)
2
ClojureScript:cljs.user (zero? 0)
true
ClojureScript:cljs.user (require '[goog.string :as gstring])
Error evaluating: (require (quote [goog.string :as gstring])) :as
cljs.user.require.call(null,(new cljs.core.Vector(null,
[\?'goog.string\,\?'as\,\?'gstring\])));\n
org.mozilla.javascript.EcmaError: TypeError: Cannot call method call
of undefined (cljs repl#3)
at cljs repl:3 (anonymous)
at cljs repl:3

nil
ClojureScript:cljs.user

Thanks in advance.
-Fiel

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Re: defrecord based on runtime metadata?

2011-12-18 Thread Cedric Greevey
On Sun, Dec 18, 2011 at 2:56 PM, Bill Robertson
billrobertso...@gmail.com wrote:
 I'm trying to define records based on meta data read in at runtime,
 and I'm attempting to write a function that extracts name and attrs
 and passes them to defrecord, but I don't understand how to
 dynamically create the symbol for the record name.

 e.g.

 user= (defrecord (symbol foo bar) [a b])
 java.lang.ClassCastException: clojure.lang.PersistentList cannot be
 cast to clojure.lang.Symbol (NO_SOURCE_FILE:5)

 Attempting to define fields in any way that I can guess at fail.

 e.g.

 user= (def fields [(symbol a)])
 #'user/fields
 user= (defrecord foo fields)
 IllegalArgumentException Don't know how to create ISeq from:
 clojure.lang.Symbol  clojure.lang.RT.seqFrom (RT.java:487)
 user= (defrecord foo (var fields))
 user.foo
 user= (user/map-foo {:a 67})       ;; funny
 #user.foo{:var nil, :fields nil, :a 67}

 Short of generating a string and calling eval on it, is this possible?

Sort of. For dynamic defrecording of dynamically-determined names at
runtime, eval is needed, but eval operates on syntax fragments, not
strings, so you don't need to muck about with strings and escaping and
all that crap. Try

(eval `(do (in-ns '~'foo) (defrecord ~(symbol Bar) [~'a ~'b])))

in the REPL and see what results. Note that it's actually very similar
to macro writing.

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Re: defrecord based on runtime metadata?

2011-12-18 Thread Stephen Compall
On Sun, 2011-12-18 at 11:56 -0800, Bill Robertson wrote:
 I'm trying to define records based on meta data read in at runtime,
 Short of generating a string and calling eval on it, is this possible?

Supposing by string you meant expression, no.

https://groups.google.com/d/msg/clojure/kdAWhfBbxVc/czQ7rPRQwPsJ

You may wish, however, to generate your defrecord forms in a macro
instead.  At that point, you may exploit the fact that previous
top-level forms have already been evaluated at macro-expansion time:

(defmacro my-stuff [blah]
  ;; I can assume that (hey you!) has been evaluated!
  ;; So if (hey you!) put something where I can get at it,
  `(defrecord ~based-on-hey-you ~@based-on...))

(hey you!)

(my-stuff that-relies-on-hey-you)

Remember, though, that if you AOT-compile, your generated defrecord will
be based on the (hey you!) that was evaluated when compiling, not the
one evaluated when loading the compiled files later.  In short, my-stuff
should have deterministic, repeatable results, and should therefore only
rely on deterministic features of (hey you!), e.g. gensyms will break.

-- 
Stephen Compall
^aCollection allSatisfy: [:each|aCondition]: less is better

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Re: Error converting an example written in C++, TCL, python to clojure

2011-12-18 Thread Stephen Compall
On Sat, 2011-12-17 at 16:43 -0800, Antonio Recio wrote:
 When I tried to translate in clojure I get errors.

Like what?

 Where is the error in my clojure code?

Well, I can only guess, but for starters:

 ren (doto (vtkRenderer.)

`ren' isn't defined, and vtkRenderer isn't in java.lang, so you won't be
able to refer to either of them without more stuff around this.  Same
with `volume'.

   (- (.GetActiveCamera) (.SetFocalPoint (.GetCenter volume 0 1 
 2)))

And why so many args to GetCenter?

-- 
Stephen Compall
^aCollection allSatisfy: [:each|aCondition]: less is better

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Re: defrecord based on runtime metadata?

2011-12-18 Thread Alan Malloy
Why do you want to do this? It's possible that it would improve
performance if you generated loads of these records, but you would
have to effectively compile your whole program at runtime in order to
have the static type information needed to get the improved
performance. Most of the time someone wants to do this it's some sort
of misguided OOP or safety feature that they want to control what's
in their hashmaps, and in those cases the answer is well stop putting
stuff into your hashmaps if you don't want it getting there.

On Dec 18, 11:56 am, Bill Robertson billrobertso...@gmail.com wrote:
 I'm trying to define records based on meta data read in at runtime,
 and I'm attempting to write a function that extracts name and attrs
 and passes them to defrecord, but I don't understand how to
 dynamically create the symbol for the record name.

 e.g.

 user= (defrecord (symbol foo bar) [a b])
 java.lang.ClassCastException: clojure.lang.PersistentList cannot be
 cast to clojure.lang.Symbol (NO_SOURCE_FILE:5)

 Attempting to define fields in any way that I can guess at fail.

 e.g.

 user= (def fields [(symbol a)])
 #'user/fields
 user= (defrecord foo fields)
 IllegalArgumentException Don't know how to create ISeq from:
 clojure.lang.Symbol  clojure.lang.RT.seqFrom (RT.java:487)
 user= (defrecord foo (var fields))
 user.foo
 user= (user/map-foo {:a 67})       ;; funny
 #user.foo{:var nil, :fields nil, :a 67}

 Short of generating a string and calling eval on it, is this possible?

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Re: Thin clojure wrapper for zeromq

2011-12-18 Thread bjconlan
https://github.com/dysinger/zilch

It is used by the Storm project which is enough of a thumbs up for me.
(I've forked it also @ https://github.com/bjconlan/zilch - but I only
point this to you because if you are using osx I've improved on the
readme for getting a more recent version of jzmq installed via brew,
i've also updated the project.clj to use clojure 1.3.0).

Maybe this is a better choice?

On Dec 18, 6:10 pm, Andreas Kostler andreas.koestler.le...@gmail.com
wrote:
 Hi All,
 For a little hobby project I found myself looking for a clojure
 wrapper for 0MQ. clojure-zeromq is stale and doesn't support zeromq 
 3.0.0 so I rolled my own:https://github.com/AndreasKostler/clj-0MQ

 It's in a very early stage of development but most of the
 functionality is there. Furthermore, there are a bunch of working
 examples for you to play with.

 Any feedback is very welcome.

 Cheers
 Andreas

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Re: Thin clojure wrapper for zeromq

2011-12-18 Thread bjconlan
Sorry I should have read the full mail. For some reason I read it as a
question for an alternative to clojure-zeromq. Ignore my previous
email. It also doesn't support zmq.3x (only 2.x series).

Sorry about that,
B.

On Dec 18, 6:10 pm, Andreas Kostler andreas.koestler.le...@gmail.com
wrote:
 Hi All,
 For a little hobby project I found myself looking for a clojure
 wrapper for 0MQ. clojure-zeromq is stale and doesn't support zeromq 
 3.0.0 so I rolled my own:https://github.com/AndreasKostler/clj-0MQ

 It's in a very early stage of development but most of the
 functionality is there. Furthermore, there are a bunch of working
 examples for you to play with.

 Any feedback is very welcome.

 Cheers
 Andreas

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Re: ClojureScript: Error when calling require in repljs REPL.

2011-12-18 Thread Fiel Cabral
I found the answer in the clojurescript wiki under The REPL and
Evaluation Environments.

https://github.com/clojure/clojurescript/wiki/The-REPL-and-Evaluation-Environments

(require x) is not supported but (ns ...) supports :require.

On Dec 18, 4:23 pm, Fiel Cabral
e4696wyoa63emq6w3250kiw60i4...@gmail.com wrote:
 I'm trying to learn ClojureScript and I get this error when calling
 require in the repljs REPL:

 (I ran these commands after cloning the git repo last night and
 running script/bootstrap)

 ./script/repljs
 Type:  :cljs/quit  to quit
 ClojureScript:cljs.user (+ 1 1)
 2
 ClojureScript:cljs.user (zero? 0)
 true
 ClojureScript:cljs.user (require '[goog.string :as gstring])
 Error evaluating: (require (quote [goog.string :as gstring])) :as
 cljs.user.require.call(null,(new cljs.core.Vector(null,
 [\?'goog.string\,\?'as\,\?'gstring\])));\n
 org.mozilla.javascript.EcmaError: TypeError: Cannot call method call
 of undefined (cljs repl#3)
         at cljs repl:3 (anonymous)
         at cljs repl:3

 nil
 ClojureScript:cljs.user

 Thanks in advance.
 -Fiel

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Re: Thin clojure wrapper for zeromq

2011-12-18 Thread Andreas Kostler
No worries :) Thanks for re-igniting my awareness of Storm.

On 19 December 2011 11:22, bjconlan bcon...@gmail.com wrote:
 Sorry I should have read the full mail. For some reason I read it as a
 question for an alternative to clojure-zeromq. Ignore my previous
 email. It also doesn't support zmq.3x (only 2.x series).

 Sorry about that,
 B.

 On Dec 18, 6:10 pm, Andreas Kostler andreas.koestler.le...@gmail.com
 wrote:
 Hi All,
 For a little hobby project I found myself looking for a clojure
 wrapper for 0MQ. clojure-zeromq is stale and doesn't support zeromq 
 3.0.0 so I rolled my own:https://github.com/AndreasKostler/clj-0MQ

 It's in a very early stage of development but most of the
 functionality is there. Furthermore, there are a bunch of working
 examples for you to play with.

 Any feedback is very welcome.

 Cheers
 Andreas

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Re: clojurescript: how do i copy one input text field to another?

2011-12-18 Thread drewn
I had this problem too.  I tried to do it in Pinot+Noir.  Haven't
figured it out yet, so curious to see if there's any success with
this!

On Dec 16, 1:05 pm, bob rditm...@gmail.com wrote:
 here is a link to both:https://gist.github.com/1487157
 (hopefully that is what you meant by create a paste.  first time
 trying it)

 On Dec 16, 10:29 am, David Nolen dnolen.li...@gmail.com wrote:







  Can you create a paste of your index.html as well as your ClojureScript
  file?

  Thanks!
  David

  On Thu, Dec 15, 2011 at 5:12 PM, bob rditm...@gmail.com wrote:

   I new to clojurescript and i thought i would take a simple example
   likehttp://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_onclick

   it has javascript that does the following:

   button

   onclick=document.getElementById('field2').value=document.getElementById('field1').valueCopy
   Text/button

   i created the following clojurescript

   (defn ^:export copytext []
    (let [e (dom/getElement field2)]
      (doto e (dom/setTextContent (.value (dom/getElement field1))

   to set the input text field2.

   I'm not seeing any errors on the console, but i'm also not seeing the
   text being
   copied from field1 to field2.

   thanks in advance for pointers on how to get this working.

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