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 1999 (C) Exoffice Technologies Inc. All Rights Reserved.
42 *
43 * $Id: JmsTemporaryTopic.java,v 1.7 2003/08/07 13:32:50 tanderson Exp $
44 *
45 * Date Author Changes
46 * 3/21/2000 jima Created
47 */
48 package org.exolab.jms.client;
49
50 import java.io.Externalizable;
51 import java.io.IOException;
52 import java.io.ObjectInput;
53 import java.io.ObjectOutput;
54
55 import javax.jms.JMSException;
56 import javax.jms.TemporaryTopic;
57 import javax.jms.Topic;
58 import javax.naming.Reference;
59 import javax.naming.Referenceable;
60
61 import org.exolab.jms.util.UUID;
62
63
64 /***
65 * A temporary topic is created by a client through a session and has
66 * a lifetime of the session's connection.
67 *
68 * @version $Revision: 1.7 $ $Date: 2003/08/07 13:32:50 $
69 * @author <a href="mailto:jima@exoffice.com">Jim Alateras</a>
70 **/
71 public class JmsTemporaryTopic
72 extends JmsTopic
73 implements TemporaryTopic, JmsTemporaryDestination, Externalizable, Referenceable {
74
75 /***
76 * Used for serialization
77 */
78 static final long serialVersionUID = 1;
79
80 /***
81 * Contains the id to the connection that created this temporary
82 * destination. Note that the actual connection object is not
83 * streamed across, only the identifier.
84 */
85 private String _connectionId = null;
86
87 /***
88 * Reference to the connection that owns this deztination.
89 */
90 transient private JmsConnection _connection = null;
91
92
93 /***
94 * Need a default constructor for the serialization
95 */
96 public JmsTemporaryTopic() {
97 super(TEMP_TOPIC_PREFIX + UUID.next());
98 }
99
100
101 public void delete()
102 throws JMSException {
103
104 _connection.deleteTemporaryDestination(this);
105 }
106
107
108 public void setOwningConnection(JmsConnection connection) {
109 _connection = connection;
110 _connectionId = _connection.getConnectionId();
111 }
112
113
114 public JmsConnection getOwningConnection() {
115 return _connection;
116 }
117
118
119 public String getConnectionId() {
120 return _connectionId;
121 }
122
123
124 public boolean validForConnection(JmsConnection connection) {
125 boolean result = false;
126
127 if ((connection != null) &&
128 (connection.getConnectionId().equals(_connectionId))) {
129 result = true;
130 }
131
132 return result;
133 }
134
135
136 public Reference getReference() {
137
138 return null;
139 }
140
141
142 public void writeExternal(ObjectOutput stream)
143 throws IOException {
144 stream.writeLong(serialVersionUID);
145 stream.writeObject(_connectionId);
146 super.writeExternal(stream);
147 }
148
149
150 public void readExternal(ObjectInput stream)
151 throws IOException, ClassNotFoundException {
152 long version = stream.readLong();
153 if (version == serialVersionUID) {
154 _connectionId = (String) stream.readObject();
155 super.readExternal(stream);
156 } else {
157 throw new IOException("JmsTemporaryTopic with version " +
158 version + " is not supported.");
159 }
160 }
161 }