If you like to explore some stuff on templating, and I highly recommend StringTemplate, this is how you can do it from JRuby.

jrst.rb

# A simple JRuby StringTemplate integration demo 
# Notes: 
# - save this script as 'jrst.rb'.
# - in the folder from where you're executing this simple script, you'll
#  have a subfolder: 'lib', containing the StringTemplate libraries:
#    lib/antlr-2.7.7.jar
#    lib/stringtemplate-3.2.1.jar
# run the script
# $ jruby jrst.rb World
#
# You'll see: Hello World!
# ----------- 
require 'java'   

Dir["lib/*.jar"].each { |jar| require jar }

class JRubySringTemplate
  include_class 'java.io.StringWriter'   
  include_class 'org.antlr.stringtemplate.StringTemplate'    

  def render ( arg)                         
    st = StringTemplate.new("Hello $name$!")
    st.set_attributes( {'name' => arg});
    writer = StringWriter.new   
    writer.write( st.toString)
    return writer.getBuffer
  end 
end

puts JRubySringTemplate.new().render( ARGV[0]) 

My 5 minutes of fun in a lunch break. Next time I'll show you how to use Velocity in the same way :)

Have fun!

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Posted by Florin T.PATRASCU on November 4, 2009 1:01:07 EST PM #