01: /*
02: * JBoss, Home of Professional Open Source.
03: * Copyright 2006, Red Hat Middleware LLC, and individual contributors
04: * as indicated by the @author tags. See the copyright.txt file in the
05: * distribution for a full listing of individual contributors.
06: *
07: * This is free software; you can redistribute it and/or modify it
08: * under the terms of the GNU Lesser General Public License as
09: * published by the Free Software Foundation; either version 2.1 of
10: * the License, or (at your option) any later version.
11: *
12: * This software is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this software; if not, write to the Free
19: * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21: */
22: package org.jboss.mx.notification;
23:
24: import javax.management.NotificationFilter;
25: import javax.management.ObjectName;
26: import javax.management.Notification;
27:
28: /**
29: * NotificationFilterProxy wraps a real filter by the users to pass down
30: * to the mbean server so that as notification emitters apply the filter, the
31: * appropriate source can be set in the notification object before passing to the
32: * real filter.
33: *
34: * @author <a href="mailto:jhaynie@vocalocity.net">Jeff Haynie</a>
35: * @version $Revision: 57200 $
36: */
37: public class NotificationFilterProxy implements NotificationFilter {
38: private static final long serialVersionUID = 1L;
39: private ObjectName source;
40: private NotificationFilter delegate;
41:
42: public NotificationFilterProxy(ObjectName source,
43: NotificationFilter delegate) {
44: this .source = source;
45: this .delegate = delegate;
46: }
47:
48: /**
49: * This method is called before a notification is sent to see whether
50: * the listener wants the notification.
51: *
52: * @param notification the notification to be sent.
53: * @return true if the listener wants the notification, false otherwise
54: */
55: public boolean isNotificationEnabled(Notification notification) {
56: // replace with the real source of the event
57: notification.setSource(source);
58: return this .delegate.isNotificationEnabled(notification);
59: }
60:
61: /**
62: * return the real ObjectName source
63: *
64: * @return
65: */
66: public ObjectName getSource() {
67: return source;
68: }
69:
70: /**
71: * return the real NotificationFilter
72: *
73: * @return
74: */
75: public NotificationFilter getFilter() {
76: return delegate;
77: }
78: }
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