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Java > Open Source Codes > classic > MsgListener


1 /*
2  * JORAM: Java(TM) Open Reliable Asynchronous Messaging
3  * Copyright (C) 2001 - ScalAgent Distributed Technologies
4  * Copyright (C) 1996 - Dyade
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19  * USA.
20  *
21  * Initial developer(s): Frederic Maistre (INRIA)
22  * Contributor(s):
23  */
24 package classic;
25
26 import javax.jms.*;
27
28 /**
29  * Implements the <code>javax.jms.MessageListener</code> interface.
30  */
31 public class MsgListener implements MessageListener
32 {
33   String JavaDoc ident = null;
34
35   public MsgListener()
36   {}
37
38   public MsgListener(String JavaDoc ident)
39   {
40     this.ident = ident;
41   }
42
43   public void onMessage(Message msg)
44   {
45     try {
46       if (msg instanceof TextMessage) {
47         if (ident == null)
48           System.out.println(((TextMessage) msg).getText());
49         else
50           System.out.println(ident + ": " + ((TextMessage) msg).getText());
51       }
52       else if (msg instanceof ObjectMessage) {
53         if (ident == null)
54           System.out.println(((ObjectMessage) msg).getObject());
55         else
56           System.out.println(ident + ": " + ((ObjectMessage) msg).getObject());
57       }
58     }
59     catch (JMSException jE) {
60       System.err.println("Exception in listener: " + jE);
61     }
62   }
63 }
64
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