Package org.jboss.example.jms.statelessclustered.client

Source Code of org.jboss.example.jms.statelessclustered.client.Client

/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.example.jms.statelessclustered.client;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.MessageConsumer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.naming.InitialContext;

import org.jboss.example.jms.common.ExampleSupport;
import org.jboss.example.jms.statelessclustered.bean.StatelessClusteredSessionExample;
import org.jboss.example.jms.statelessclustered.bean.StatelessClusteredSessionExampleHome;

/**
* This example deploys a simple clustered Stateless Session Bean that is used as a proxy to send
* and receive JMS messages in a managed environment.
*
* Since this example is also used by the smoke test, it is essential that the VM exits with exit
* code 0 in case of successful execution and a non-zero value on failure.
*
* @author <a href="mailto:ovidiu@feodorov.com">Ovidiu Feodorov</a>
* @version <tt>$Revision: 2868 $</tt>
*
* $Id: Client.java 2868 2007-07-10 20:22:16Z timfox $
*/
public class Client extends ExampleSupport
{
   public void example() throws Exception
   {           
      InitialContext ic = new InitialContext();
     
      StatelessClusteredSessionExampleHome home =
         (StatelessClusteredSessionExampleHome)ic.lookup("ejb/StatelessClusteredSessionExample");           
     
      StatelessClusteredSessionExample bean = home.create();

      String queueName = getDestinationJNDIName();
      String text = "Hello!";

      bean.drain(queueName);

      bean.send("Hello!", queueName);
      log("The " + text + " message was successfully sent to the " + queueName + " queue");

      int num = bean.browse(queueName);
      bean.remove();

      log("Queue browse result: " + num);

      Queue queue = (Queue)ic.lookup(queueName);

      // Not using ClusteredConnectionFactory since that would require message
      // redistribution to be enabled, and we don't want to bother with the configuration
      // at this time.
      ConnectionFactory cf = (ConnectionFactory) ic.lookup("/ConnectionFactory");
      Connection conn = cf.createConnection();

      try
      {
         conn.start();
         Session session = conn.createSession(false, Session.AUTO_ACKNOWLEDGE);        
         MessageConsumer consumer = session.createConsumer(queue);
        
         System.out.println("blocking to receive message from queue " + queueName + " ...");
         TextMessage tm = (TextMessage)consumer.receive(5000);
        
         if (tm == null)
         {
            throw new Exception("No message!");
         }
        
         System.out.println("Message " + tm.getText() + " received");
        
         assertEquals("Hello!", tm.getText());
      }
      finally
      {
         conn.close();
      }

   }
  
   protected boolean isQueueExample()
   {
      return true;
   }
  
   public static void main(String[] args)
   {
      new Client().run();
   }  
}
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