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JSparrow is a JMS client based on JRuby

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README.rdoc

jsparrow

JSparrow is a JMS client based on JRuby. Previously it has been called Sparrow, but changed his name because has another project with the same name.

I'm sorry but any time I break backward compatibility. However, always is for make a better API.

Install

Make gem install:

sudo gem install jsparrow -s http://gemcutter.org

Example

Five steps to send and receive JMS messages to/from a JMS provider.

WARNING: OpenJMS will be used as JMS provider, but any other could be used with no problems.

1) Create my_jsparrow_test.rb file and require the gems

require 'rubygems'
require 'jsparrow'

2) Setup indispensable informations to connect your JMS provider

JSparrow::Connection.configure do
  use_jms_client_jar '/opt/openjms/lib/openjms-0.7.7-beta-1.jar'

  use_jndi_properties :initial_context_factory => 'org.exolab.jms.jndi.InitialContextFactory',
                      :provider_url            => 'tcp://localhost:3035'
                    # :security_principal      => 'user',
                    # :security_credentials    => 'password'

  enable_connection_factories :queue_connection_factory => 'ConnectionFactory'

  enable_queues :my_queue => 'MyQueue'
end

3) Create the client and start it

jms_client = new_jsparrow_client
jms_client.start

4) OK! Now you can send and receive messages right now!

jms_client.queue_sender(:my_queue).send_text_message('jsparrow rocks!') do |msg|
  msg.set_string_property('recipient', 'jsparrow-example')
end

jms_client.queue_receiver(:my_queue).receive_message(
    :timeout  => 5000,
    :selector => "recipient = 'jsparrow-example'"
  ) do |msg|

  puts "is text message? #{msg.is_text_message?}"    # is text message? true
  puts "message: #{msg.text}"                        # message: jsparrow rocks!
end

5) After you receive your amazing messages, stop the client

jms_client.stop

So, now that you wrote code and save it, start the OpenJMS server, create the queue (MyQueue), and run above script:

jruby my_jsparrow_test.rb

jsparrow rocks! =)

Sample

A very simple sample code

Or, if you don't want write code, only do it:

jruby sample/sample_queue.rb

Next

For more informations, read the specs! ;)

github.com/leandrosilva/jsparrow/tree/master/spec

Copyright

Copyright © 2009 Leandro Silva (CodeZone) <leandrodoze@gmail.com>. See LICENSE for details.

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