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Java > Open Source Codes > org > ungoverned > oscar > util > FrameworkListenerWrapper


1 /*
2  * Oscar - An implementation of the OSGi framework.
3  * Copyright (c) 2004, Richard S. Hall
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * * Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
12  * * Redistributions in binary form must reproduce the above copyright
13  * notice, this list of conditions and the following disclaimer in
14  * the documentation and/or other materials provided with the
15  * distribution.
16  * * Neither the name of the ungoverned.org nor the names of its
17  * contributors may be used to endorse or promote products derived
18  * from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  *
32  * Contact: Richard S. Hall (heavy@ungoverned.org)
33  * Contributor(s):
34  *
35 **/
36 package org.ungoverned.oscar.util;
37
38 import java.security.AccessController JavaDoc;
39 import java.security.PrivilegedAction JavaDoc;
40
41 import org.osgi.framework.Bundle;
42 import org.osgi.framework.FrameworkEvent;
43 import org.osgi.framework.FrameworkListener;
44
45 public class FrameworkListenerWrapper extends ListenerWrapper implements FrameworkListener
46 {
47     public FrameworkListenerWrapper(Bundle bundle, FrameworkListener l)
48     {
49         super(bundle, FrameworkListener.class, l);
50     }
51
52     public void frameworkEvent(final FrameworkEvent event)
53     {
54         // The spec says only active bundles receive asynchronous events,
55 // but we will include starting bundles too otherwise
56 // it is impossible to see everything.
57 if ((getBundle().getState() == Bundle.STARTING) ||
58             (getBundle().getState() == Bundle.ACTIVE))
59         {
60             if (System.getSecurityManager() != null)
61             {
62                 AccessController.doPrivileged(new PrivilegedAction JavaDoc() {
63                     public Object JavaDoc run()
64                     {
65                         ((FrameworkListener) getListener()).frameworkEvent(event);
66                         return null;
67                     }
68                 });
69             }
70             else
71             {
72                 ((FrameworkListener) getListener()).frameworkEvent(event);
73             }
74         }
75     }
76 }
77
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