/*
 * NOTE: This copyright does *not* cover user programs that use Hyperic
 * program services by normal system calls through the application
 * program interfaces provided as part of the Hyperic Plug-in Development
 * Kit or the Hyperic Client Development Kit - this is merely considered
 * normal use of the program, and does *not* fall under the heading of
 * "derived work".
 *
 * Copyright (C) [2004-2011], VMware, Inc.
 * This file is part of Hyperic.
 *
 * Hyperic is free software; you can redistribute it and/or modify
 * it under the terms version 2 of the GNU General Public License as
 * published by the Free Software Foundation. This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA.
 */

package org.hyperic.hq.measurement.server.session;

import org.hyperic.hq.product.MetricValue;
import org.hyperic.hq.zevents.Zevent;
import org.hyperic.hq.zevents.ZeventManager;
import org.hyperic.hq.zevents.ZeventPayload;
import org.hyperic.hq.zevents.ZeventSourceId;

public class MeasurementZevent extends Zevent {
    
    public static class MeasurementZeventSource implements ZeventSourceId {
        
        private static final long serialVersionUID = 8032357796841855478L;
        
        private final int _id;
        
        public MeasurementZeventSource(int id) {
            _id = id;
        }
        
        /**
         * Returns the id of the {@link Measurement} that the event is
         * for.
         */
        public int getId() {
            return _id;
        }
        
        public int hashCode() {
            int result = 17;
            result = 37*result+_id;
            result = 37*result+this.getClass().toString().hashCode();
            return result;
        }
        
        public boolean equals(Object o) {
            if (o== this)
                return true;
            
            if (o == null || !(o instanceof MeasurementZeventSource)) 
                return false;

            return ((MeasurementZeventSource)o).getId() == getId();
        }
        
        public String toString() {
            return "MeasID[" + _id + "]";
        }
    }
    
    public static class MeasurementZeventPayload implements ZeventPayload {
        private MetricValue _val;
        
        public MeasurementZeventPayload(MetricValue val) {
            // Clone for now since it's mutable.  Boo! -- XXX
            _val = new MetricValue(val);  
        }
        
        public MetricValue getValue() {
            // Clone for now since it's mutable.  Boo! -- XXX
            return new MetricValue(_val);
        }
        
        public String toString() {
            return _val.toString();
        }
    }

    public MeasurementZevent(int measId, MetricValue val) {
        super(new MeasurementZeventSource(measId), 
              new MeasurementZeventPayload(val));
    }
}