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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 2000-2003 (C) Exoffice Technologies Inc. All Rights Reserved.
42   *
43   * $Id: RmiJmsServer.java,v 1.23 2003/08/07 13:33:10 tanderson Exp $
44   *
45   * Date         Author  Changes
46   * 2/28/2000    jima    Created
47   */
48  package org.exolab.jms.server.rmi;
49  
50  import java.rmi.Naming;
51  import java.rmi.RMISecurityManager;
52  import java.rmi.RemoteException;
53  import java.rmi.server.UnicastRemoteObject;
54  import java.util.Hashtable;
55  
56  import javax.jms.JMSException;
57  import javax.naming.Context;
58  import javax.naming.NamingException;
59  
60  import org.apache.commons.logging.Log;
61  import org.apache.commons.logging.LogFactory;
62  
63  import org.exolab.jms.client.rmi.RmiJmsConstants;
64  import org.exolab.jms.config.ConfigHelper;
65  import org.exolab.jms.config.Configuration;
66  import org.exolab.jms.config.ConfigurationManager;
67  import org.exolab.jms.config.Connector;
68  import org.exolab.jms.config.types.SchemeType;
69  import org.exolab.jms.server.ConnectionFactoryHelper;
70  import org.exolab.jms.server.JmsServerConnection;
71  import org.exolab.jms.server.JmsServerConnectionManager;
72  import org.exolab.jms.server.JmsServerIfc;
73  import org.exolab.jms.server.ServerException;
74  
75  
76  /***
77   * This class implements the JmsServerIfc and provides an RMI-based JMS Server.
78   * When then client calls init control is passed to this class instance until
79   * the server terminates (normally or abnormally).
80   *
81   * @version     $Revision: 1.23 $ $Date: 2003/08/07 13:33:10 $
82   * @author      <a href="mailto:jima@intalio.com">Jim Alateras</a>
83   * @see         ConfigurationManager
84   */
85  public class RmiJmsServer
86      extends UnicastRemoteObject
87      implements JmsServerIfc, RemoteJmsServerIfc {
88  
89      /***
90       * The logger
91       */
92      private static final Log _log = LogFactory.getLog(RmiJmsServer.class);
93  
94  
95      /***
96       * The default constructor determines whether or not to run the RMI
97       * registry in embedded mode or not. If embedded mode is specified then
98       * register this service with the ServiceManager.
99       */
100     public RmiJmsServer() throws RemoteException {
101     }
102 
103     /***
104      * This routine binds this service with the rmiregistry.
105      * When a client needs to use the server it will be automatically
106      * activated by the rmiregistry to handle the request(s). It does expect
107      * that the registry is active when this routine is called.
108      *
109      * @throws ServerException if the service cannot be bound
110      */
111     public void init() throws ServerException {
112         try {
113             // set the RMISecurityManager as the security manager for the VM
114             System.setSecurityManager(new RMISecurityManager());
115 
116             Configuration config = ConfigurationManager.getConfig();
117 
118             // bind the server to the registry
119             String serverBinding = ConfigHelper.getServerURL(
120                 SchemeType.RMI, config);
121             Naming.rebind(serverBinding, (RemoteJmsServerIfc) this);
122             _log.info("JMS Server is bound to " + serverBinding);
123 
124             // create and bind the JMS admin server to the naming registry
125             String adminBinding = ConfigHelper.getAdminURL(
126                 SchemeType.RMI, config);
127             Naming.rebind(adminBinding, new RmiJmsAdminServer());
128             _log.info("JMS Admin Server is bound to " + adminBinding);
129         } catch (Exception exception) {
130             throw new ServerException(
131                 "Failed to initialise the RMI server interface", exception);
132         }
133     }
134 
135     /***
136      * Bind any factory object specified in the configuration file to the
137      * specified JNDI context.
138      *
139      * @param context context to bind factory objects
140      * @throws NamingException if a naming error occurs
141      */
142     public void bindConnectionFactories(Context context)
143         throws NamingException {
144         Configuration config = ConfigurationManager.getConfig();
145 
146         // we need to put together a list of parameters that the
147         // RMI connection factories will need to use to connect
148         // to this server
149         Hashtable env = new Hashtable();
150         String url = ConfigHelper.getServerURL(SchemeType.RMI, config);
151         env.put(RmiJmsConstants.SERVER_URL, url);
152         env.put(RmiJmsConstants.RMI_CLIENT_PING_INTERVAL,
153             Integer.toString(getClientPingInterval()));
154 
155         Connector connector = ConfigurationManager.getConnector(
156             SchemeType.RMI);
157         ConnectionFactoryHelper.bind(
158             context, connector.getConnectionFactories(),
159             org.exolab.jms.client.rmi.RmiJmsServerStub.class, env);
160     }
161 
162     /***
163      * Create a connection to the specified server. This will create an
164      * instance of a JmsServerConnection and then return a remote reference
165      * to it.
166      *
167      * @param id client identity
168      * @param username the client's user name
169      * @param password the client's password
170      * @return a new connection
171      * @throws JMSException if the connection cannot be created
172      * @throws RemoteException if the connection cannot be created
173      */
174     public RemoteJmsServerConnectionIfc createConnection(
175         String id, String username, String password)
176         throws JMSException, RemoteException {
177         JmsServerConnection connection =
178             JmsServerConnectionManager.instance().createConnection(
179                 id, username, password);
180 
181         return new RmiJmsServerConnection(connection, getClientPingInterval());
182     }
183 
184     /***
185      * Return the client ping interval for this server. This interval is used
186      * to determine when clients are no longer available.
187      *
188      * @reutrn the ping interval in seconds
189      */
190     protected int getClientPingInterval() {
191         Configuration config = ConfigurationManager.getConfig();
192         return config.getRmiConfiguration().getClientPingInterval();
193     }
194 
195 } //-- RmiJmsServer