Hi Susanta,
you mentioned " I'm writing a meshup sample using SCA. Here I'm using
one composite written in Ruby which requires ""rubygem".
would you like to contribute your sample to Tuscany? Good samples are always
helpful to other users.
Thanks,
Haleh
On 9/27/07, Jean-Sebastien Delfino <[EMAIL PROTECTED]> wrote:
>
> Susanta Datta wrote:
> > Jean, Thanks a lot. I'm writing a meshup sample using SCA. Here I'm
> > using one composite written in Ruby which requires ""rubygem".
> >
> > regards
> > Susanta
>
> Cool!
>
> I did a little more testing, as I really wanted to see a Ruby gem in
> action before declaring victory. Here's what I did:
>
> I installed JRuby 1.0.1.
>
> From the command line, ran jirb gem install progressbar, the
> progressbar Gem got installed under <jruby-install>/lib/ruby/gems
>
> I copied <jruby-install>/lib/ruby/gems to $HOME/.jruby/lib/ruby/gems.
> I'm running Linux, on Windows the .jruby home directory is probably
> somewhere under Documents And Settings.
>
> I changed SubtractServiceImpl.rb in the Tuscany calculator-script sample
> as follows:
> require 'rubygems'
> require 'progressbar'
>
> def subtract(n1, n2)
>
> bar = ProgressBar.new("Example progress", 50)
> total = 0
> until total >= 50
> sleep(rand(2)/2.0)
> increment = (rand(6) + 3)
> bar.inc(increment)
> total += increment
> end
> print "\n"
>
> return n1 - n2
> end
>
> Ran the calculator sample and saw:
> Example progr: 14% |ooooo | ETA:
> 00:00:00
> Example progr: 20% |oooooooo | ETA:
> 00:00:02
> Example progr: 36% |oooooooooooooo | ETA:
> 00:00:01
> Example progr: 48% |ooooooooooooooooooo | ETA:
> 00:00:01
> Example progr: 64% |ooooooooooooooooooooooooo | ETA:
> 00:00:00
> Example progr: 80% |oooooooooooooooooooooooooooooooo | ETA:
> 00:00:00
> Example progr: 96% |oooooooooooooooooooooooooooooooooooooo | ETA:
> 00:00:00
> Example progr: 100% |oooooooooooooooooooooooooooooooooooooooo| ETA:
> 00:00:00
> 3 - 2=1.0
>
> So I can confirm that Ruby Gems should work if you follow similar steps.
>
> Let me know how it goes... Thanks.
>
> > ----- Original Message ----- From: "Jean-Sebastien Delfino"
> > <[EMAIL PROTECTED]>
> > To: <tuscany-user@ws.apache.org>
> > Sent: Thursday, September 27, 2007 4:44 PM
> > Subject: Re: adding rubygem as dependency in ruby file
> >
> >
> >> Jean-Sebastien Delfino wrote:
> >>> Susanta Datta wrote:
> >>>> Hi, my composite has a ruby implementation. In my Ruby file I
> >>>> require "rubygems" and some other ruby files. How do I set those
> >>>> folder and files in my sca java project ? I tried with calculator
> >>>> script in eclipse IDE. I works fine but if I add new a "require
> >>>> rubygems" in the .rb file I get an error <unknown>:19: no such file
> >>>> to load -- rubygems (LoadError).
> >>>>
> >>>> Any idea where and how do I configure Ruby dependencies in the java
> >>>> sca project under eclipse?
> >>>>
> >>>> thanks a lot Susanta
> >>>>
> >>>
> >>> I am looking into this. To test what happens with "require"
> >>> statements I changed one of our scripting samples:
> >>>
> http://svn.apache.org/repos/asf/incubator/tuscany/java/sca/samples/calculator-script/src/main/resources/calculator/SubtractServiceImpl.rb
> >>>
> >>>
> >>> and added a "require" as follows:
> >>> require 'rexml/document'
> >>> include REXML
> >>>
> >>> def subtract(n1, n2)
> >>> doc = Document.new <<-eof
> >>> <Hello xmlns="http://test";>
> >>> <name>Foo</name>
> >>> </Hello>
> >>> eof
> >>> print doc
> >>> return n1 - n2
> >>> end
> >>>
> >>> and it works, I'm getting:
> >>> <Hello xmlns='http://test'>
> >>> <name>Foo</name>
> >>> </Hello>
> >>> 3 - 2=1.0
> >>>
> >>> REXML is part of the jruby distribution. Next, I'm going to try to
> >>> require another .rb file in the same project and will let u know
> >>> what I find.
> >>>
> >>
> >> I made a small change to our JRuby integration code to add the path
> >> to the rubygems hiding inside jruby-complete-1.0.jar to the Jruby
> >> loadpath. I also made a small change to improve the Exception
> >> reporting, you should now see the JRuby exception messages.
> >>
> >> The changes are available in SVN revision r580145 of the Tuscany
> >> trunk, see:
> >>
> http://svn.apache.org/viewvc/incubator/tuscany/java/sca/modules/implementation-script/src/main/java/org/apache/tuscany/sca/implementation/script/engines/TuscanyJRubyScriptEngine.java?view=diff&r1=580144&r2=580145&pathrev=580145
> >>
> >>
> >> This should allow you to "require 'rubygems'".
> >>
> >> You may also have to configure your environment as described in the
> >> JRuby Gotchas section there:
> >>
> http://www.headius.com/jrubywiki/index.php/Java_Integration#Embedding_with_Bean_Scripting_Framework
> >>
> >>
> >> Why gems are you using? Any Rails by any chance? I think it would be
> >> really cool to show Rails working with SCA...
> >>
> >> Hope this helps.
> >>
> >> --
> >> Jean-Sebastien
> >>
> >>
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> >>
> >
> >
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> >
> >
>
>
> --
> Jean-Sebastien
>
>
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