KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > topicTree > Producer


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 topicTree;
25
26 import javax.jms.*;
27 import javax.naming.*;
28
29 /**
30  * Produces messages on the hierarchical topic.
31  */
32 public class Producer
33 {
34   static Context ictx = null;
35
36   public static void main(String JavaDoc[] args) throws Exception JavaDoc
37   {
38     System.out.println();
39     System.out.println("Produces messages on the various topics...");
40
41     ictx = new InitialContext();
42     Topic newsT = (Topic) ictx.lookup("news");
43     Topic businessT = (Topic) ictx.lookup("business");
44     Topic sportsT = (Topic) ictx.lookup("sports");
45     Topic tennisT = (Topic) ictx.lookup("tennis");
46     ConnectionFactory cf = (ConnectionFactory) ictx.lookup("cf");
47     ictx.close();
48
49     Connection cnx = cf.createConnection();
50     Session sess = cnx.createSession(true, 0);
51     MessageProducer producer = sess.createProducer(null);
52
53     TextMessage msg = sess.createTextMessage();
54
55     msg.setText("News!");
56     producer.send(newsT, msg);
57     msg.setText("Business!");
58     producer.send(businessT, msg);
59     msg.setText("Sports!");
60     producer.send(sportsT, msg);
61     msg.setText("Tennis!");
62     producer.send(tennisT, msg);
63
64     sess.commit();
65     cnx.close();
66   }
67 }
68
Popular Tags