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/*
 * TeleStax, Open Source Cloud Communications  Copyright 2012.
 * and individual contributors
 * by the @authors tag. See the copyright.txt 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.restcomm.slee.resource.cap;

import java.util.concurrent.ConcurrentHashMap;

import javax.slee.EventTypeID;
import javax.slee.facilities.EventLookupFacility;
import javax.slee.facilities.Tracer;
import javax.slee.resource.FireableEventType;

/**
 * 
 * @author amit bhayani
 * 
 */
public class EventIDCache {

	private ConcurrentHashMap eventIds = new ConcurrentHashMap();
	private static final String EVENT_VENDOR = "org.restcomm";
	private static final String EVENT_VERSION = "1.0";

	private Tracer tracer;

	protected EventIDCache(Tracer tracer) {
		this.tracer = tracer;
	}

	protected FireableEventType getEventId(EventLookupFacility eventLookupFacility, String eventName) {

		FireableEventType eventType = eventIds.get(eventName);
		if (eventType == null) {
			try {
				eventType = eventLookupFacility.getFireableEventType(new EventTypeID(eventName, EVENT_VENDOR,
						EVENT_VERSION));
			} catch (Throwable e) {
				this.tracer.severe("Error while looking up for MAP Events", e);
			}
			if (eventType != null) {
				eventIds.put(eventName, eventType);
			}
		}
		return eventType;
	}
}