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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 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 // implementation of TemporaryTopic.delete 101 public void delete() 102 throws JMSException { 103 // unregisterthe temporary topic from the owning destination 104 _connection.deleteTemporaryDestination(this); 105 } 106 107 // implementation of JmsTemporaryDestination.setOwningConnection 108 public void setOwningConnection(JmsConnection connection) { 109 _connection = connection; 110 _connectionId = _connection.getConnectionId(); 111 } 112 113 // implementation of JmsTemporaryDestination.getOwningConnection 114 public JmsConnection getOwningConnection() { 115 return _connection; 116 } 117 118 // implementation of JmsTemporaryDestination.getConnectionId 119 public String getConnectionId() { 120 return _connectionId; 121 } 122 123 // implementation of JmsTemporaryDestination.validForConnection 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 // implementation of Referenceable.getReference 136 public Reference getReference() { 137 // should never be called for temp destination 138 return null; 139 } 140 141 // implementation of Externalizable.writeExternal 142 public void writeExternal(ObjectOutput stream) 143 throws IOException { 144 stream.writeLong(serialVersionUID); 145 stream.writeObject(_connectionId); 146 super.writeExternal(stream); 147 } 148 149 // implementation of Externalizable.writeExternal 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 }

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