Re: Apache Batik

PS I'm not an expert on JRuby or Java integration BTW but I have used it, but
I've used the other model described on
http://jruby.sourceforge.net/docs/java-overview.shtml

require 'java'

include_class 'java.util.Random'
r = Random.new
puts r.nextInt


Have you tried doing it this way instead?

Quoting Mark Wong-VanHaren <markwvh@xxxxxxxxx>:

> Hi, folks-
> 
> I am attempting to use JRuby to control Apache Batik.
> (The Rasterizer, specifically.)
> 
> I am utterly Java-ignorant.  The problem I'm encountering
> may well be very simple, just due to my complete Java ignorance.
> Maybe someone more clueful can steer me right?
> 
> The JRE (1.5.0_06) works fine; I can run the Batik-rasterizer JAR with it.
> Also, JRuby (0.8.2) works fine; it successfully runs the JRuby sample scrip=
> ts.
> No problems there.
> 
> What I'm ignorant about is how to do is to make JRuby recognize
> Java classes/projects which are *not* part of the standard Java distro.
> 
> My jruby script:
> =3D=3D=3D=3D=3D=3D
> require 'java'
> module Foo
>   include_package 'org.apache.batik.apps.rasterizer'
>   converter =3D Main.new     # Main is a class in Rasterizer
> end
> =3D=3D=3D=3D=3D=3D
> 
> Running this (using bin/jruby.rb) produces the following error:
> =3D=3D=3D=3D=3D
> /home/enebo/release/jruby/src/builtin/javasupport.rb:409:in
> `const_missing': uninitialized constant Main at Bobo (NameError)
>        from /home/enebo/release/jruby/src/builtin/javasupport.rb:409:in
> `const_missing'
>        from svg_rasterizer.rb:4
>        from :0
> =3D=3D=3D=3D=3D
> 
> I presume that means that JRuby doesn't know where to find
> "org.apache.batik.apps.rasterizer"?
> 
> For rasterizer, I have both the JAR file and all the .java files.
> 
> For the .java files, I set the environment variable CLASSPATH
> to the dir just above "org", hoping that would help it find it, but no luck=
> .
> 
> For the .jar file, I've put it everywhere I could think of: in the
> present working directory, in /usr/lib, and I-don't-remember-where-else,
> with the same results.
> 
> I would be greatly indebted to anyone who might point me
> in the right direction.
> 
> Thanks!
> -Mark
>  mark wong-vanharen
>  markwvh at gmail dot com
> 
> 
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