AbstractEventPolicyRule.java

/*******************************************************************************
 * This file is part of OpenNMS(R).
 *
 * Copyright (C) 2011 The OpenNMS Group, Inc.
 * OpenNMS(R) is Copyright (C) 1999-2011 The OpenNMS Group, Inc.
 *
 * OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
 *
 * OpenNMS(R) is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 *
 * OpenNMS(R) 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenNMS(R).  If not, see:
 *      http://www.gnu.org/licenses/
 *
 * For more information contact:
 *     OpenNMS(R) Licensing <license@opennms.org>
 *     http://www.opennms.org/
 *     http://www.opennms.com/
 *******************************************************************************/

package org.opennms.netmgt.scriptd.helper;

import org.opennms.netmgt.xml.event.Event;

public abstract class AbstractEventPolicyRule implements EventPolicyRule {

	private boolean forward;
	
	public void addForwardRule(EventMatch match) {
		m_filter.add(match);
		m_forwardes.add(new Boolean(true));
	}

	public void addDropRule(EventMatch match) {
		m_filter.add(match);
		m_forwardes.add(new Boolean(false));
	}

	public Event filter(Event event) {
		forward=true;
		int count = 0;
		for (EventMatch filter: m_filter) {
			if (filter.match(event)) {
				forward = m_forwardes.get(count).booleanValue();
				break;
			}
			count++;
		}
		if (forward)
			return expand(event);
		return null;
	}

	protected abstract Event expand(Event event);

}