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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 2000-2001,2003 (C) Exoffice Technologies Inc. All Rights Reserved. 42 * 43 * $Id: IntravmJmsConnectionStub.java,v 1.5 2003/08/07 13:32:52 tanderson Exp $ 44 * 45 * Date Author Changes 46 * 05/03/2000 jima Created 47 */ 48 package org.exolab.jms.client.intravm; 49 50 import javax.jms.JMSException; 51 52 import org.exolab.jms.client.JmsConnectionStubIfc; 53 import org.exolab.jms.client.JmsSessionStubIfc; 54 import org.exolab.jms.server.JmsServerConnection; 55 import org.exolab.jms.server.JmsServerConnectionManager; 56 import org.exolab.jms.server.JmsServerSession; 57 58 59 /*** 60 * This class is responsible for implementing the client side of a intravm 61 * client-server connection for the JMS server. It is used to ovecome the 62 * performance issues associated with say and RMI based client-server running 63 * in the same VM. Depending on the different implementation of the client 64 * server ORB (i.e RMI or CORBA) some of the smarter products will simply turn 65 * a distributed request into a local client server call hence bypassing all 66 * marshalling. 67 * <p> 68 * Generic, by implication, impliesthat we are sacrificing the performance of 69 * the lower end ORB (intravm ORB) to provide a transparent framework for all 70 * underlying ORBs. 71 * 72 * @version $Revision: 1.5 $ $Date: 2003/08/07 13:32:52 $ 73 * @author <a href="mailto:jima@exoffice.com">Jim Alateras</a> 74 **/ 75 public class IntravmJmsConnectionStub 76 implements JmsConnectionStubIfc { 77 78 /*** 79 * This is a reference to the remote connection stub that is constructed during 80 * object initialisation. 81 */ 82 private JmsServerConnection _delegate = null; 83 84 /*** 85 * Instantiate an instance of this class with the specified server side 86 * object. All the requests for this stub are simply delegated to the 87 * server skeleton 88 * 89 * @param IntravmJmsServerConnectionIfc 90 * @exception JMSException 91 */ 92 IntravmJmsConnectionStub(JmsServerConnection connection) 93 throws JMSException { 94 if (connection != null) { 95 _delegate = connection; 96 } else { 97 throw new JMSException("Cannot instantiate with a null connection"); 98 } 99 } 100 101 // implementation of JmsConnectionStubIfc.createSession 102 public JmsSessionStubIfc createSession(int ackMode, boolean transacted) 103 throws JMSException { 104 IntravmJmsSessionStub stub = null; 105 106 JmsServerSession session = _delegate.createSession(ackMode, transacted); 107 stub = new IntravmJmsSessionStub(session); 108 session.setMessageListener(stub); 109 110 return stub; 111 } 112 113 // implementation of JmsConnectionStubIfc.close 114 public void close() 115 throws JMSException { 116 JmsServerConnectionManager.instance().closeConnection( 117 _delegate.getID()); 118 _delegate.close(); 119 _delegate = null; 120 } 121 122 // implementation of JmsConnectionStubIfc.destroy 123 public void destroy() 124 throws JMSException { 125 _delegate = null; 126 } 127 128 // implementation of JmsConnectionStubIfc.getConnectionId 129 public String getConnectionId() 130 throws JMSException { 131 return _delegate.getConnectionId(); 132 } 133 }

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