ManagementMBeanFilter


1   /**
2   * JOnAS: Java(TM) Open Application Server
3   * Copyright (C) 2004 Bull S.A.
4   * Contact: jonas-team@objectweb.org
5   *
6   * This library is free software; you can redistribute it and/or
7   * modify it under the terms of the GNU Lesser General Public
8   * License as published by the Free Software Foundation; either
9   * version 2.1 of the License, or any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
19  * USA
20  *
21  * --------------------------------------------------------------------------
22  * $Id: ManagementMBeanFilter.java,v 1.2 2005/02/03 10:25:23 danesa Exp $
23  * --------------------------------------------------------------------------
24  */
25  package org.objectweb.jonas.management.j2eemanagement;
26  
27  import javax.management.MBeanServerNotification  ;
28  import javax.management.Notification  ;
29  import javax.management.NotificationFilter  ;
30  import javax.management.ObjectName  ;
31  
32  /**
33  * @author Adriana Danes
34  *
35  * NotificationFilter that accepts only management notifications
36  */
37  public class ManagementMBeanFilter implements NotificationFilter   {
38  
39     /**
40      * Returns true if the notification is a REGISTRATION or UNREGISTRETION
41      * JOnAS management MBean notification
42      * @param notif notification to filter
43      * @return true if this is a discovery notification, false otherwise
44      */
45      public boolean isNotificationEnabled(Notification   notif) {
46          boolean result = false;
47          if (notif instanceof MBeanServerNotification  ) {
48              ObjectName   name = ((MBeanServerNotification  ) notif).getMBeanName();
49              String   onType = name.getKeyProperty("type");
50              String   onServer = name.getKeyProperty("server");
51              if (onType != null && onType.equals("management")
52                      && onServer != null && onServer.equals("JOnAS")) {
53                  return true;
54              }
55          }
56          return result;
57      }
58  }
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