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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.qpid.server.management;
import org.apache.qpid.server.logging.LogActor;
import org.apache.qpid.server.logging.actors.CurrentActor;
import org.apache.qpid.server.logging.actors.ManagementActor;
import javax.management.ListenerNotFoundException;
import javax.management.NotCompliantMBeanException;
import javax.management.NotificationBroadcaster;
import javax.management.NotificationBroadcasterSupport;
import javax.management.NotificationFilter;
import javax.management.NotificationListener;
/**
* This class provides additinal feature of Notification Broadcaster to the
* DefaultManagedObject.
* @author Bhupendra Bhardwaj
* @version 0.1
*/
public abstract class AMQManagedObject extends DefaultManagedObject
implements NotificationBroadcaster
{
private NotificationBroadcasterSupport _broadcaster = new NotificationBroadcasterSupport();
private long _notificationSequenceNumber = 0;
private LogActor _logActor;
protected AMQManagedObject(Class<?> managementInterface, String typeName)
throws NotCompliantMBeanException
{
super(managementInterface, typeName);
// CurrentActor will be defined as these objects are created during
// broker startup.
_logActor = new ManagementActor(CurrentActor.get().getRootMessageLogger());
}
// notification broadcaster implementation
public void addNotificationListener(NotificationListener listener,
NotificationFilter filter,
Object handback)
{
_broadcaster.addNotificationListener(listener, filter, handback);
}
public void removeNotificationListener(NotificationListener listener)
throws ListenerNotFoundException
{
_broadcaster.removeNotificationListener(listener);
}
/**
* broadcaster support class
*/
protected NotificationBroadcasterSupport getBroadcaster()
{
return _broadcaster;
}
/**
* sequence number for notifications
*/
protected long getNotificationSequenceNumber()
{
return _notificationSequenceNumber;
}
protected void setNotificationSequenceNumber(long notificationSequenceNumber)
{
_notificationSequenceNumber = notificationSequenceNumber;
}
protected long incrementAndGetSequenceNumber()
{
return ++_notificationSequenceNumber;
}
protected LogActor getLogActor()
{
return _logActor;
}
}
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