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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: JmsTemporaryQueue.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 // java core 51 52 import java.io.Externalizable; 53 import java.io.IOException; 54 import java.io.ObjectInput; 55 import java.io.ObjectOutput; 56 57 import javax.jms.JMSException; 58 import javax.jms.Queue; 59 import javax.jms.TemporaryQueue; 60 import javax.naming.Reference; 61 import javax.naming.Referenceable; 62 63 import org.exolab.jms.util.UUID; 64 65 66 /*** 67 * A temporary queue is created by a client through a session and has 68 * a lifetime of the session's connection. 69 * 70 * @version $Revision: 1.7 $ $Date: 2003/08/07 13:32:50 $ 71 * @author <a href="mailto:jima@exoffice.com">Jim Alateras</a> 72 **/ 73 public class JmsTemporaryQueue 74 extends JmsQueue 75 implements TemporaryQueue, JmsTemporaryDestination, Externalizable, Referenceable { 76 77 78 /*** 79 * Used for serialization 80 */ 81 static final long serialVersionUID = 1; 82 83 /*** 84 * Contains the id to the connection that created this temporary 85 * destination. Note that the actual connection object is not 86 * streamed across, only the identifier. 87 */ 88 private String _connectionId = null; 89 90 /*** 91 * Reference to the connection that owns this deztination. 92 */ 93 transient private JmsConnection _connection = null; 94 95 96 /*** 97 * Need a default constructor for the serialization 98 */ 99 public JmsTemporaryQueue() { 100 super(TEMP_QUEUE_PREFIX + UUID.next()); 101 } 102 103 // implementation of TemporaryTopic.delete 104 public void delete() 105 throws JMSException { 106 // unregister the temporary topic from the owning destination 107 _connection.deleteTemporaryDestination(this); 108 } 109 110 // implementation of JmsTemporaryDestination.setOwningConnection 111 public void setOwningConnection(JmsConnection connection) { 112 _connection = connection; 113 _connectionId = connection.getConnectionId(); 114 } 115 116 // implementation of JmsTemporaryDestination.getOwningConnection 117 public JmsConnection getOwningConnection() { 118 return _connection; 119 } 120 121 // implementation of JmsTemporaryDestination.getConnectionId 122 public String getConnectionId() { 123 return _connectionId; 124 } 125 126 // implementation of Referenceable.getReference 127 public Reference getReference() { 128 // should never be called for temp destination 129 return null; 130 } 131 132 // implementation of JmsTemporaryDestination.validForConnection 133 public boolean validForConnection(JmsConnection connection) { 134 boolean result = false; 135 136 if ((connection != null) && 137 (connection.getConnectionId().equals(_connectionId))) { 138 result = true; 139 } 140 141 return result; 142 } 143 144 // implementation of Externalizable.writeExternal 145 public void writeExternal(ObjectOutput stream) 146 throws IOException { 147 stream.writeLong(serialVersionUID); 148 stream.writeObject(_connectionId); 149 super.writeExternal(stream); 150 } 151 152 // implementation of Externalizable.writeExternal 153 public void readExternal(ObjectInput stream) 154 throws IOException, ClassNotFoundException { 155 long version = stream.readLong(); 156 if (version == serialVersionUID) { 157 _connectionId = (String) stream.readObject(); 158 super.readExternal(stream); 159 } else { 160 throw new IOException("JmsTemporaryQueue with version " + 161 version + " is not supported."); 162 } 163 } 164 }

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