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1   /***
2    * Redistribution and use of this software and associated documentation
3    * ("Software"), with or without modification, are permitted provided
4    * that the following conditions are met:
5    *
6    * 1. Redistributions of source code must retain copyright
7    *    statements and notices.  Redistributions must also contain a
8    *    copy of this document.
9    *
10   * 2. Redistributions in binary form must reproduce the
11   *    above copyright notice, this list of conditions and the
12   *    following disclaimer in the documentation and/or other
13   *    materials provided with the distribution.
14   *
15   * 3. The name "Exolab" must not be used to endorse or promote
16   *    products derived from this Software without prior written
17   *    permission of Exoffice Technologies.  For written permission,
18   *    please contact info@exolab.org.
19   *
20   * 4. Products derived from this Software may not be called "Exolab"
21   *    nor may "Exolab" appear in their names without prior written
22   *    permission of Exoffice Technologies. Exolab is a registered
23   *    trademark of Exoffice Technologies.
24   *
25   * 5. Due credit should be given to the Exolab Project
26   *    (http://www.exolab.org/).
27   *
28   * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
29   * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30   * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
32   * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33   * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39   * OF THE POSSIBILITY OF SUCH DAMAGE.
40   *
41   * Copyright 2000-2004 (C) Exoffice Technologies Inc. All Rights Reserved.
42   *
43   * $Id: JmsTopicPublisher.java,v 1.12 2004/01/20 14:14:21 tanderson Exp $
44   */
45  package org.exolab.jms.client;
46  
47  import javax.jms.JMSException;
48  import javax.jms.Message;
49  import javax.jms.Topic;
50  import javax.jms.TopicPublisher;
51  
52  
53  /***
54   * Client implementation of the <code>javax.jms.TopicPublisher</code> interface
55   *
56   * @version     $Revision: 1.12 $ $Date: 2004/01/20 14:14:21 $
57   * @author      <a href="mailto:jima@exoffice.com">Jim Alateras</a>
58   */
59  class JmsTopicPublisher
60      extends JmsMessageProducer
61      implements TopicPublisher {
62  
63      /***
64       * The destination that messages are delivered to, or <code>null</code>
65       * if this is an unidentified producer
66       */
67      private JmsTopic _topic = null;
68  
69  
70      /***
71       * Construct a new <code>JmsTopicPublisher</code>
72       *
73       * @param session the session constructing this object
74       * @param topic the publisher's destination. May be <code>null</code>.
75       */
76      public JmsTopicPublisher(JmsSession session, JmsTopic topic) {
77          super(session);
78          _topic = topic;
79      }
80  
81      /***
82       * Returns the topic associated with this publisher
83       *
84       * @return the topic associated with this publisher, or <code>null</code>
85       * if this is an unidentified producer
86       */
87      public Topic getTopic() {
88          return _topic;
89      }
90  
91      /***
92       * Publish a message, using the default delivery mode, priority and time to
93       * live.
94       *
95       * @param message the message to send
96       * @throws JMSException if the message can't be sent
97       */
98      public void publish(Message message) throws JMSException {
99          publish(getTopic(), message, getDeliveryMode(), getPriority(),
100                 getTimeToLive());
101     }
102 
103     /***
104      * Publish a message to a topic for an unidentified message producer, using
105      * the default delivery mode, priority and time to live
106      *
107      * @param topic the topic to publish the message to
108      * @param message the message to send
109      * @throws JMSException if the message can't be sent
110      */
111     public void publish(Topic topic, Message message) throws JMSException {
112         publish(topic, message, getDeliveryMode(), getPriority(),
113                 getTimeToLive());
114     }
115 
116     /***
117      * Publish a message, specifying the delivery mode, priority and time to
118      * live
119      *
120      * @param message the message to send
121      * @param deliveryMode the delivery mode to use
122      * @param priority the message priority
123      * @param timeToLive the message's lifetime (in milliseconds).
124      * @throws JMSException if the message can't be sent
125      */
126     public void publish(Message message, int deliveryMode, int priority,
127                         long timeToLive) throws JMSException {
128         publish(getTopic(), message, deliveryMode, priority, timeToLive);
129     }
130 
131     /***
132      * Publish a message to a topic for an unidentified message producer,
133      * specifying the delivery mode, priority and time to live
134      *
135      * @param topic the topic to publish the message to
136      * @param message the message to send
137      * @param deliveryMode the delivery mode to use
138      * @param priority the message priority
139      * @param timeToLive the message's lifetime (in milliseconds).
140      * @throws JMSException if the message can't be sent
141      */
142     public void publish(Topic topic, Message message, int deliveryMode,
143                         int priority, long timeToLive) throws JMSException {
144         sendMessage(topic, message, deliveryMode, priority, timeToLive);
145     }
146 
147     /***
148      * Close the publisher
149      *
150      * @throws JMSException if the publisher can't be closed
151      */
152     public synchronized void close() throws JMSException {
153         if (!isClosed()) {
154             // unregister this publisher from the session amd then call the
155             // base class method.
156             JmsTopicSession session = (JmsTopicSession) getSession();
157             session.removePublisher(this);
158             super.close();
159         }
160     }
161 
162     /***
163      * Destroy the publisher
164      */
165     public void destroy() {
166         super.destroy();
167         _topic = null;
168     }
169 
170 }