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 2004 (C) Exoffice Technologies Inc. All Rights Reserved.
42 *
43 * $Id: VMInvoker.java,v 1.2 2006/12/16 12:37:17 tanderson Exp $
44 */
45 package org.exolab.jms.net.vm;
46
47 import org.exolab.jms.net.connector.ResourceException;
48
49 import java.rmi.MarshalException;
50 import java.rmi.MarshalledObject;
51
52
53 /***
54 * Delegates invocations to an {@link VMManagedConnection} instance
55 *
56 * @author <a href="mailto:tma@netspace.net.au">Tim Anderson</a>
57 * @version $Revision: 1.2 $ $Date: 2006/12/16 12:37:17 $
58 */
59 class VMInvoker {
60
61 /***
62 * The physical connection
63 */
64 private VMManagedConnection _connection;
65
66
67 /***
68 * Construct a new <code>VMInvoker</code>
69 *
70 * @param connection the physical connection
71 */
72 public VMInvoker(VMManagedConnection connection) {
73 _connection = connection;
74 }
75
76 /***
77 * Invoke a method on a remote object.
78 *
79 * @param request the wrapped <code>Request</code>
80 * @return the result of the invocation
81 * @throws MarshalException if the request can't be unmarshalled or the
82 * response can't be marshalled
83 */
84 public MarshalledObject invoke(MarshalledObject request)
85 throws MarshalException {
86 return _connection.invokeLocal(request);
87 }
88
89 /***
90 * Determines if the underlying physical connection is alive.
91 *
92 * @return <code>true</code> if the connection is alive
93 */
94 public boolean isAlive() {
95 return _connection.isAliveLocal();
96 }
97
98 /***
99 * Notifies the remote end that the connection has been destroyed.
100 *
101 * @throws ResourceException for any error
102 */
103 public void destroy() throws ResourceException {
104 _connection.destroyLocal();
105 }
106
107 }