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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 (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 // rethrow as a JMSException 164 throw new JMSException("Failed to create session: " + exception); 165 } 166 167 return stub; 168 } 169 170 // implementation of JmsConnectionStubIfc.close 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 // rethrow as a JMSException 193 throw new JMSException("Failed to close connection: " + exception); 194 } finally { 195 _server.closed(this); 196 } 197 } 198 199 // implementation of JmsConnectionStubIfc.getConnectionId 200 public String getConnectionId() throws JMSException { 201 return _connectionId; 202 } 203 204 // implementation of JmsConnectionStubIfc.destroy 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 } //-- IpcConnectionStub

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