/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.mx.remoting.event;
import javax.management.Notification;
import javax.management.NotificationFilter;
/**
* Composite-pattern based filter
*
* @author Jeff Haynie
* @version $Revision: 81084 $
*/
public class CompositeEventFilter implements NotificationFilter
{
static final long serialVersionUID = -4670317046721324670L;
public static final int AND = 0;
public static final int OR = 1;
protected int operator = AND;
protected NotificationFilter filters[];
/**
* create a filter composite of filters using the specific operator
*/
public CompositeEventFilter(NotificationFilter filters[], int operator)
{
this.filters = filters;
this.operator = operator;
}
/**
* create a filter composite of filters using the AND operator
*/
public CompositeEventFilter(NotificationFilter filters[])
{
this(filters, AND);
}
public boolean isNotificationEnabled(Notification event)
{
Class cl = event.getClass();
for(int c = 0; c < filters.length; c++)
{
if(operator == AND)
{
if(filters[c] != null && filters[c].isNotificationEnabled(event) == false)
{
return false;
}
}
else
{
if(filters[c] != null && filters[c].isNotificationEnabled(event))
{
return true;
}
}
}
return (operator == AND ? true : false);
}
}