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 (C) Exoffice Technologies Inc. All Rights Reserved.
42 *
43 * $Id: IpcJmsConnectionStub.java,v 1.8 2003/08/07 13:32:52 tanderson Exp $
44 *
45 * Date Author Changes
46 * $Date jimm Created
47 */
48
49
50 package org.exolab.jms.client.mipc;
51
52 import java.util.Vector;
53
54 import javax.jms.JMSException;
55
56 import org.exolab.core.ipc.IpcIfc;
57 import org.exolab.jms.client.JmsConnectionStubIfc;
58 import org.exolab.jms.client.JmsSessionStubIfc;
59
60
61 /***
62 * Used to create OpenJmsSessions to the server. It gets the new Session Id
63 * assigned by the server and returns a IpcJmsSessionStub.
64 *
65 * @version $Revision: 1.8 $ $Date: 2003/08/07 13:32:52 $
66 * @author <a href="mailto:mourikis@exolab.org">Jim Mourikis</a>
67 * @see org.exolab.jms.client.mipc.IpcJmsServerStub
68 * @see org.exolab.jms.client.mipc.IpcJmsSessionStub
69 * @see org.exolab.core.ipc.Client
70 *
71 **/
72
73
74 public class IpcJmsConnectionStub implements JmsConnectionStubIfc {
75
76 /***
77 * The owner of this instance
78 */
79 private IpcJmsServerStub _server;
80
81 /***
82 * The connection to the server
83 */
84 private IpcIfc _connection = null;
85
86 /***
87 * The client connection id
88 */
89 private String _clientId;
90
91 /***
92 * The destination connection id
93 */
94 private String _connectionId;
95
96 /***
97 * The listener for dispatching messages to sessions
98 */
99 private IpcJmsMessageListener _listener = null;
100
101 /***
102 * Construct a new <code>IpcJmsConnectionStub</code>
103 *
104 * @param server the owner of this instance
105 * @param connection the connection to the server.
106 * @param clientId this client's unique id.
107 * @param connectionId this object's connection identifier.
108 * @param listener the listener for managing session MessageListeners
109 */
110 public IpcJmsConnectionStub(IpcJmsServerStub server,
111 IpcIfc connection,
112 String clientId,
113 String connectionId,
114 IpcJmsMessageListener listener) {
115 _server = server;
116 _connection = connection;
117 _clientId = clientId;
118 _connectionId = connectionId;
119 _listener = listener;
120 }
121
122 /***
123 * Send a session connection message. Create a new IpcJmsSessionStub
124 * if this createSession request was successfull.
125 *
126 * @param ackMode the ack mode for the session
127 * @param transacted <code>true</code> if the session is transacted
128 * @return JmsSessionStubIfc the session interface.
129 * @throws JMSException on failure to create a session.
130 */
131 public JmsSessionStubIfc createSession(int ackMode, boolean transacted)
132 throws JMSException {
133 JmsSessionStubIfc stub = null;
134
135 try {
136 Vector v = pack("createSession", 2);
137 synchronized (_connection) {
138 v.add(new Integer(ackMode));
139 v.add(new Boolean(transacted));
140 _connection.send(v);
141 v = (Vector) _connection.receive();
142 }
143
144 if (v != null) {
145 Boolean b = (Boolean) v.get(0);
146 if (b.booleanValue() == true) {
147 Vector state = (Vector) v.get(1);
148 String sessionId = (String) state.get(0);
149 stub = new IpcJmsSessionStub(
150 _connection, _clientId, _connectionId, sessionId,
151 _listener);
152 } else {
153 throw new JMSException("Failed to create session: "
154 + (String) v.get(1));
155 }
156 } else {
157 throw new JMSException("Unknown connection error for "
158 + "createSession");
159 }
160 } catch (JMSException exception) {
161 throw exception;
162 } catch (Exception exception) {
163
164 throw new JMSException("Failed to create session: " + exception);
165 }
166
167 return stub;
168 }
169
170
171 public void close() throws JMSException {
172 try {
173 Vector v = pack("close", 0);
174 synchronized (_connection) {
175 _connection.send(v);
176 v = (Vector) _connection.receive();
177 }
178
179 if (v != null) {
180 Boolean b = (Boolean) v.get(0);
181 if (!b.booleanValue()) {
182 throw new JMSException("Failed to close connection: " +
183 (String) v.get(1));
184 }
185 } else {
186 throw new JMSException("Unknown connection error for " +
187 "close Connection");
188 }
189 } catch (JMSException exception) {
190 throw exception;
191 } catch (Exception exception) {
192
193 throw new JMSException("Failed to close connection: " + exception);
194 } finally {
195 _server.closed(this);
196 }
197 }
198
199
200 public String getConnectionId() throws JMSException {
201 return _connectionId;
202 }
203
204
205 public void destroy() {
206 _connection = null;
207 }
208
209 /***
210 * Pack all the data that is required by the server in a vector.
211 * Set the size of the vector to be exactly the right size for efficiency.
212 *
213 * @param method The function to activate on the server.
214 * @param numParams The number of paramaters this method will require.
215 * @return Vector The vector containing all the data.
216 *
217 */
218 private Vector pack(String method, int numParams) {
219 Vector v = new Vector(4 + numParams);
220 v.add("org.exolab.jms.server.mipc.IpcJmsServerConnection");
221 v.add(method);
222 v.add(_clientId);
223 v.add(_connectionId);
224 return v;
225 }
226
227 }