(assuming you agree that xwiki-backed sites like http://www.idiva.com , http://www.curriki.org or http://www.bestventes.com constitute "serious web apps"...)
On the Xwiki devs list, I inquired: http://lists.xwiki.org/pipermail/devs/2009-July/013763.html about using Clojure as a scripting language in Xwiki, via JSR-223. I got two very helpful replies: (1) http://lists.xwiki.org/pipermail/devs/2009-July/013764.html *Asiri Rathnayake* *Sun Jul 26 10:43:25 CEST 2009* > [...] > >* Clojure <http://groups.google.com/group/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 > > > > Are there any examples, documentation, or suggestions of writing a > "script* macro" to call a new jar in WEB-INF/lib ?* > 1. Put the Clojure jar file < http://repo1.maven.org/maven2/org/clojure/clojure/1.0.0/clojure-1.0.0.jar> inside WEB-INF/lib directory 2. Build the Clojure JSR223 engine from http://github.com/pmf/clojure-jsr223/tree/master and place it inside WEB-INF/lib 3. Restart your xwiki and use the script macro as below: {{script language="Clojure"}} // Put your clojure script here. {{/script}} (Note that since context is a reserved binding in JSR-223 specifications used for Scripting Macros, the XWiki Api Context is now accessible through xcontext.) I haven't myself tried out clojure inside xwiki but I built a ruby macro<http://code.xwiki.org/xwiki/bin/view/Macros/RubyMacro>(for 2.0M2) just by following the steps I described to you :) Question: does anybody have any hints, warnings, potential "gotchas" regarding this part: "Build the Clojure JSR223 engine from http://github.com/pmf/clojure-jsr223/tree/master and place it inside WEB-INF/lib" ?? (2) http://lists.xwiki.org/pipermail/devs/2009-July/013767.html From: Vincent Massol Date: Sun, Jul 26, 2009 at 10:21 AM [...] Well all you need is drop the JSR223 jar in WEB-INF/lib and then you can use the new language using the script macro: http://code.xwiki.org/xwiki/bin/view/Macros/ScriptMacro Then if you want you can write a wrapping macro such as we've done for groovy and jruby so that it can be called with {{clojure}} instead of {{script language="clojure"}}. >* PS: Here's examples of easy "scripted java" programming you can do in* >* Clojure (note the helpful parallelism constructs):* >* http://travis-whitton.blogspot.com/2009/07/network-sweeping-with-clojure.html * **>* http://travis-whitton.blogspot.com/2009/06/clojures-agents-scientists-monkeys-and_18.html * **> **>* It could be very useful to employ massive parallelism via such Clojure* >* scripts, which could achieve a xwiki-based web portal performance akin to * >* Yahoo's, Google's, etc. For example, the following describes how Yahoo works* >* -- and would be quite easy to implement this kind of processing "for free"* >* in Clojure with very little code:* > >* http://research.yahoo.com/files/pnuts.pdf* I'm definitely +1 to make it part of the XWiki platform (same as for jruby) if you develop it. Similar to jruby I don't think we should package it in the default WAR though but as an optional download to install (will be even easier with the app manager). Niels http://nielsmayer.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 -~----------~----~----~----~------~----~------~--~---
