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
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
114 public void close()
115 throws JMSException {
116 JmsServerConnectionManager.instance().closeConnection(
117 _delegate.getID());
118 _delegate.close();
119 _delegate = null;
120 }
121
122
123 public void destroy()
124 throws JMSException {
125 _delegate = null;
126 }
127
128
129 public String getConnectionId()
130 throws JMSException {
131 return _delegate.getConnectionId();
132 }
133 }