/* The contents of this file are subject to the license and copyright terms
* detailed in the license directory at the root of the source tree (also
* available online at http://fedora-commons.org/license/).
*/
package org.fcrepo.server.messaging;
import java.util.Properties;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.TextMessage;
import org.fcrepo.server.messaging.JMSManager;
import javax.naming.Context;
/**
* Test class for listening to a JMS topic.
*
* @author Edwin Shin
* @version $Id$
*/
public class Listener
implements MessageListener {
private final JMSManager jmsMgr;
/**
* Create a Listener object for the specified JMS topic.
*
* @param topicName the JMS topic to listen to, e.g. "fedora.apim.update"
* @param jndiProps Properties file that contains, at a minimum, values for
* Context.INITIAL_CONTEXT_FACTORY and Context.PROVIDER_URL
* @throws Exception
*/
public Listener(String topicName, Properties jndiProps)
throws Exception {
jmsMgr = new JMSManager(jndiProps);
System.out.println("*** Listening for messages on topic: " + topicName);
jmsMgr.listen(topicName, this);
}
public void onMessage(Message message) {
try {
TextMessage textMessage = (TextMessage) message;
String text = textMessage.getText();
System.out.println(text);
} catch (JMSException e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws Exception {
if (args.length < 1) {
System.out.println("Usage: " + Listener.class.getName()
+ " jmsTopicName [providerURL]");
System.out.println("\te.g. " + Class.class.getName()
+ " fedora.apim.update tcp://localhost:61616");
}
String topic = args[0];
Properties jndiProps = null;
if (args.length == 2) {
jndiProps = new Properties();
jndiProps
.setProperty(Context.INITIAL_CONTEXT_FACTORY,
"org.apache.activemq.jndi.ActiveMQInitialContextFactory");
jndiProps.setProperty(Context.PROVIDER_URL, args[1]); // e.g. tcp://localhost:61616
jndiProps.setProperty("topic." + topic, topic);
}
new Listener(topic, jndiProps);
}
}