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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