textlistener.java

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/*
 * Copyright (c) 2003 Sun Microsystems, Inc.  All rights reserved.  U.S. 
 * Government Rights - Commercial software.  Government users are subject 
 * to the Sun Microsystems, Inc. standard license agreement and 
 * applicable provisions of the FAR and its supplements.  Use is subject 
 * to license terms.  
 * 
 * This distribution may include materials developed by third parties. 
 * Sun, Sun Microsystems, the Sun logo, Java and J2EE are trademarks 
 * or registered trademarks of Sun Microsystems, Inc. in the U.S. and 
 * other countries.  
 * 
 * Copyright (c) 2003 Sun Microsystems, Inc. Tous droits reserves.
 * 
 * Droits du gouvernement americain, utilisateurs gouvernementaux - logiciel
 * commercial. Les utilisateurs gouvernementaux sont soumis au contrat de 
 * licence standard de Sun Microsystems, Inc., ainsi qu'aux dispositions 
 * en vigueur de la FAR (Federal Acquisition Regulations) et des 
 * supplements a celles-ci.  Distribue par des licences qui en 
 * restreignent l'utilisation.
 * 
 * Cette distribution peut comprendre des composants developpes par des 
 * tierces parties. Sun, Sun Microsystems, le logo Sun, Java et J2EE 
 * sont des marques de fabrique ou des marques deposees de Sun 
 * Microsystems, Inc. aux Etats-Unis et dans d'autres pays.
 */
/**
 * The TextListener class implements the MessageListener 
 * interface by defining an onMessage method that displays 
 * the contents of a TextMessage.
 *
 * This class acts as the listener for the SimpleAsynchConsumer
 * class.
 */
import javax.jms.*;

public class TextListener implements MessageListener {

    /**
     * Casts the message to a TextMessage and displays its text.
     *
     * @param message     the incoming message
     */
    public void onMessage(Message message) {
        TextMessage msg = null;
            
        try {
            if (message instanceof TextMessage) {
                msg = (TextMessage) message;
                System.out.println("Reading message: " +
                    msg.getText());
            } else {
                System.out.println("Message is not a " +
                    "TextMessage");
            }
        } catch (JMSException e) {
            System.out.println("JMSException in onMessage(): " +
                e.toString());
        } catch (Throwable t) {
            System.out.println("Exception in onMessage():" +
                t.getMessage());
        }
    }
}