[ANN] Another one implementation of JSR 223 (Java Scripting API) for Clojure

2018-02-27 Thread Oleg Vershinin
Here is a link: 

https://github.com/overshinin/clojure-jsr223

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Clojure in Scripting Engine JSR-223

2016-05-10 Thread Olek
Is Clojure compilant with scripting engine API (JSR-223)?
Last notes are from 2009.

Thanks in advance,
Olek

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Re: [ANN] Clojure JSR 223 Implementation

2012-05-23 Thread eduardoejp
Thanks for the advice. I'll check into those.

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Re: [ANN] Clojure JSR 223 Implementation

2012-05-23 Thread Kevin Downey
you might want to use something like
https://github.com/flatland/classlojure or
https://github.com/hiredman/polycosm to provide an isolated clojure
runtime per instance of ClojureScriptEngine.

single segment namespaces are bad because the generate classes end up
in the default package.

checking jars in to git is bad form, github provides a "downloads"
feature if you want to host a downloadable jar there.

On Wed, May 23, 2012 at 4:56 PM, eduardoejp  wrote:
> Since the only other alternatives (http://code.google.com/p/clojure-jsr223/
> and https://github.com/pmf/clojure-jsr223) seem pretty much dead, I decided
> to write my own (in Clojure).
>
> You can get the jar downloading it from Clojars with lein dep and then just
> drop it in the desired class-path to have Clojure support.
>
> Here's the link: http://clojars.org/clj-jsr223
>
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And what is not good—
Need we ask anyone to tell us these things?

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[ANN] Clojure JSR 223 Implementation

2012-05-23 Thread eduardoejp
Since the only other alternatives (http://code.google.com/p/clojure-jsr223/ 
and https://github.com/pmf/clojure-jsr223) seem pretty much dead, I decided 
to write my own (in Clojure).

You can get the jar downloading it from Clojars with lein dep and then just 
drop it in the desired class-path to have Clojure support.

Here's the link: http://clojars.org/clj-jsr223

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Re: JSR 223

2009-07-31 Thread pmf

On Aug 1, 2:36 am, Niels Mayer  wrote:
> PS: I've always seen xwiki as the "emacs of webapps" (and wikis)...
> So I'm looking forward to having a real emacsish type language -- clojure
> --
> to extend it via a more appropriate language for scripting.

I'm the author of the JSR 223 bridge for Clojure. At the moment, I
have several uncommitted changes (mainly related to wrapping it up in
a nice OSGi service component (to be used optionally). The Invocable-
stuff is not implemented at the moment, but will be painless to
implement. The Compilable-interface is a bit harder to do, and given
Clojure's AOT compilation, I'm not sure if there's really a use case
(because if you use require within a small script, Clojure will
already out of the box transparently choose a compiled implementation,
given a proper classpath setup). It's not quite the same, but comes
pretty close.

Aside from that, I have some unresolved design issues regarding
isolation of engines; this works differently for Clojure than for
other dynamic languages for the reasons explained below.

Due to the static initialization of the Clojure runtime, it is much
harder to create different independent Clojure-engine instances, since
this would require loading each Clojure-runtime under a separate
classloader, which I am not opposed to, but was unable to implement.

At the moment, I'm using a weird kind of isolation in which each
Clojure-engine runs in its own thread, using a shared runtime, and
bindings are isolated by pushing and popping them.

I'm going to abandon this rather stupid approach and use a simpler
"one namespace per engine"-scheme. This change should (hopefully) be
transparent for little scripts that don't have their own explicit
namespaces. If your scripts use user-defined namespaces, I'll just
assume you break this isolation intentionally (which is true to the
meaning of namespaces, after all).

If anybody would like to look into the classloader-based isolation,
I'd happily to integrate this change (even if this means a severe
startup-overhead for the creation of each engine-instance; it's simply
the proper way to do it).

For production (at least if you plan to have more than one active
engine instance), I'd recommend to wait for either the namespace-based
isolation or (should anybody get involved) the classloader-based
approach. I'll reply to this thread again if one of these approaches
is implemented.
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Re: JSR 223

2009-07-31 Thread Niels Mayer
http://www.xwiki.org/xwiki/bin/view/Main/ReleaseNotesXWikiEnterprise20M2On
Fri, Jul 31, 2009 at 9:04 AM, Mike  wrote:
>
> Are there plans for Clojure to work in JSR-223 (Java Scripting
> Framework)?  I see a lot of languages up there already.  In fact, the
> only major JVM languages missing are Scala and Clojure.


In
http://groups.google.com/group/clojure/browse_thread/thread/297861670c2f5611
 (orig http://lists.xwiki.org/pipermail/devs/2009-July/013763.html ) I
wrote:

Clojure has a JSR-223 implementation according to:
http://github.com/pmf/clojure-jsr223/tree/master
http://groovy.codehaus.org/JSR-223+access+to+other+JVM+languages
http://sayspy.blogspot.com/2009/03/interacting-between-jvm-lang-here-and.html
I've been told I'd need to "Build the Clojure JSR223 engine from
http://github.com/pmf/clojure-jsr223/tree/master and place it inside
WEB-INF/lib" in order to add Clojure as a scripting language to Xwiki
(alongside existing
velocity/groovy<http://platform.xwiki.org/xwiki/bin/view/DevGuide/Scripting>and
jRuby <http://code.xwiki.org/xwiki/bin/view/Macros/RubyMacro> scripting
implementations). Any special instructions or suggestions or "gotchas" in
creating the clojure jsr223 engine? (I'm still upgrading to Xwiki
2.0M2<http://www.xwiki.org/xwiki/bin/view/Main/ReleaseNotesXWikiEnterprise20M2>prior
to starting my clojure experiment, so any prior advice before doing
anything stupid --  e.g. running the jsr223 engine on an incompatible
version of clojure -- would be helpful.)

Niels
http://nielsmayer.com

PS: I've always seen xwiki as the "emacs of webapps" (and wikis)...
So I'm looking forward to having a real emacsish type language -- clojure
-- 
to extend it via a more appropriate language for scripting.

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Re: JSR 223

2009-07-31 Thread Stuart Sierra

Someone's working on it: http://github.com/pmf/clojure-jsr223/tree/master

-SS


On Jul 31, 12:04 pm, Mike  wrote:
> Sorry if this is a FAQ; couldn't find it on the main site nor in the
> group.
>
> Are there plans for Clojure to work in JSR-223 (Java Scripting
> Framework)?  I see a lot of languages up there already.  In fact, the
> only major JVM languages missing are Scala and Clojure.
>
> Thanks for any info...
> Mike
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JSR 223

2009-07-31 Thread Mike

Sorry if this is a FAQ; couldn't find it on the main site nor in the
group.

Are there plans for Clojure to work in JSR-223 (Java Scripting
Framework)?  I see a lot of languages up there already.  In fact, the
only major JVM languages missing are Scala and Clojure.

Thanks for any info...
Mike

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