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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 2003-2005 (C) Exoffice Technologies Inc. All Rights Reserved.
42   *
43   * $Id: RMIInvokerFactoryImpl.java,v 1.2 2005/04/17 14:01:30 tanderson Exp $
44   */
45  package org.exolab.jms.net.rmi;
46  
47  import java.rmi.RemoteException;
48  import java.rmi.AccessException;
49  import java.rmi.server.RemoteObject;
50  import java.security.Principal;
51  
52  import org.exolab.jms.net.connector.ManagedConnectionAcceptorListener;
53  import org.exolab.jms.net.connector.Authenticator;
54  import org.exolab.jms.net.connector.ResourceException;
55  import org.exolab.jms.net.uri.URIHelper;
56  
57  
58  /***
59   * A factory for {@link RMIInvoker} instances.
60   *
61   * @author <a href="mailto:tma@netspace.net.au">Tim Anderson</a>
62   * @version $Revision: 1.2 $ $Date: 2005/04/17 14:01:30 $
63   */
64  public class RMIInvokerFactoryImpl
65          extends RemoteObject implements RMIInvokerFactory {
66  
67      /***
68       * The connection authenticator.
69       */
70      private final Authenticator _authenticator;
71  
72      /***
73       * The connection acceptor that constructed this.
74       */
75      private final RMIManagedConnectionAcceptor _acceptor;
76  
77      /***
78       * The listener to delegate accepted connections to.
79       */
80      private final ManagedConnectionAcceptorListener _listener;
81  
82  
83      /***
84       * Construct a new <code>RMIInvokerFactoryImpl</code>.
85       *
86       * @param authenticator the connection authenticator
87       * @param acceptor the connection acceptor that constructed this
88       * @param listener the listsner to delegate new connections to
89       */
90      public RMIInvokerFactoryImpl(Authenticator authenticator,
91                                   RMIManagedConnectionAcceptor acceptor,
92                                   ManagedConnectionAcceptorListener listener) {
93          _authenticator = authenticator;
94          _acceptor = acceptor;
95          _listener = listener;
96  
97      }
98  
99      /***
100      * Creates an authenticated invoker.
101      *
102      * @param principal the security principal
103      * @param client    the invoker for performing invocations back to the
104      *                  client
105      * @param uri       the URI representing the client
106      * @return an authenticated invoker
107      * @throws RemoteException for any remote error
108      */
109     public RMIInvoker createInvoker(Principal principal, RMIInvoker client,
110                                     String uri)
111             throws RemoteException {
112         try {
113             if (!_authenticator.authenticate(principal)) {
114                 throw new AccessException("Failed to authenticate");
115             }
116         } catch (ResourceException exception) {
117             throw new AccessException("Failed to authenticate", exception);
118         }
119         RMIInvokerImpl invoker = new RMIInvokerImpl();
120         RMIManagedConnection connection =
121                 new RMIManagedConnection(principal, invoker, _acceptor.getURI(),
122                                          client, URIHelper.parse(uri));
123         _listener.accepted(_acceptor, connection);
124         return invoker;
125     }
126 
127 }