mq5.0-source.src.share.java.examples.jms.AsynchQueueExample Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2000-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
import javax.jms.*;
/**
* The AsynchQueueExample class consists only of a main method, which fetches
* one or more messages from a queue using asynchronous message delivery.
*
* Compile TextListener.java before you run this program.
*
* Run this program in conjunction with SenderToQueue. Specify a queue name
* on the command line when you run the program.
*/
public class AsynchQueueExample {
/**
* Main method.
*
* @param args the queue used by the example
*/
public static void main(String[] args) {
String queueName = null;
ConnectionFactory connectionFactory = null;
Connection connection = null;
Session session = null;
Queue queue = null;
MessageConsumer msgConsumer = null;
TextListener textListener = null;
int exitResult = 0;
if (args.length != 1) {
System.out.println("Usage: java AsynchQueueExample ");
System.exit(1);
}
queueName = new String(args[0]);
System.out.println("Queue name is " + queueName);
try {
connectionFactory =
SampleUtilities.getConnectionFactory();
connection =
connectionFactory.createConnection();
session = connection.createSession(false,
Session.AUTO_ACKNOWLEDGE);
queue = SampleUtilities.getQueue(queueName, session);
} catch (Exception e) {
System.out.println("Connection problem: " + e.toString());
if (connection != null) {
try {
connection.close();
} catch (JMSException ee) {}
}
System.exit(1);
}
/*
* Create consumer.
* Register message listener (TextListener).
* Start message delivery; listener displays the message obtained.
* Block until producer issues a control message indicating
* end of publish stream.
*/
try {
msgConsumer = session.createConsumer(queue);
textListener = new TextListener();
msgConsumer.setMessageListener(textListener);
connection.start();
textListener.monitor.waitTillDone();
} catch (JMSException e) {
System.out.println("Exception occurred: " + e.toString());
exitResult = 1;
} finally {
if (connection != null) {
try {
connection.close();
} catch (JMSException e) {
exitResult = 1;
}
}
}
SampleUtilities.exit(exitResult);
}
}