inboundmetric.java

jxta_src_2.41b jxta 2.41b 最新版源码 from www.jxta.org

/*
 * Copyright (c) 2001 Sun Microsystems, Inc.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *       Sun Microsystems, Inc. for Project JXTA."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact Project JXTA at http://www.jxta.org.
 *
 * 5. Products derived from this software may not be called "JXTA",
 *    nor may "JXTA" appear in their name, without prior written
 *    permission of Sun.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of Project JXTA.  For more
 * information on Project JXTA, please see
 * <http://www.jxta.org/>.
 *
 * This license is based on the BSD license adopted by the Apache Foundation.
 *
 * $Id: InboundMetric.java,v 1.3 2003/05/14 01:08:11 iam Exp $
 */

 
package net.jxta.impl.endpoint.endpointMeter;

import net.jxta.endpoint.*;
import net.jxta.impl.endpoint.*;
import net.jxta.util.documentSerializable.*;
import net.jxta.document.*;

import java.util.*;

/**
  *    Meter corresponding to inbound queue for registered EndpointListeners ServiceName/ServiceParam pair
  **/
public class InboundMetric implements DocumentSerializable {
	private String serviceName;
	private String serviceParameter;

	private String serviceIdString;	// internally used to speed up Hashing

	private int numInboundQueued;
	private int numInboundDropped;
	private long timeToDropInbound;
	private int numInboundDeQueued;
	private long timeInInboundQueue;
	private int numInboundProcessed;
	private long timeToProcessInbound;


	public InboundMetric(InboundMeter inboundMeter) {
		this.serviceName = inboundMeter.getServiceName();
		this.serviceParameter = inboundMeter.getServiceParameter();

		serviceIdString = serviceName + serviceParameter;		
	}

	public InboundMetric(InboundMetric prototype) {
		this.serviceName = prototype.getServiceName();
		this.serviceParameter = prototype.getServiceParameter();

		serviceIdString = serviceName + serviceParameter;		
	}


	public InboundMetric() { } 

	/** The Service Name for this Metric **/
	public String getServiceName() { return serviceName; }
	/** The Service Parameter for this Metric **/
	public String getServiceParameter() { return serviceParameter; }
	
	/** The Number of Inbound Messages Queued **/
	public int getNumInboundQueued() { return numInboundQueued; }
	/** The Number of Inbound Messages Dropped **/
	public int getNumInboundDropped() { return numInboundDropped; }
	/** The Sum of time for all dropped messages from queue **/
	public long getTimeToDropInbound() { return timeToDropInbound; }
	/** The Number of Inbound Messages Dequeued **/
	public int getNumInboundDeQueued() { return numInboundDeQueued; }
	/** The Sum of time in queue for messages in queue **/
	public long getTimeInInboundQueue() { return timeInInboundQueue; }
	public int getNumInboundProcessed() { return numInboundProcessed; }
	/** The Sum of time for local listeners to process messages **/
	public long getTimeToProcessInbound() { return timeToProcessInbound; }
	
	/** The Average of time in queue for messages **/
	public long getAverageTimeInInboundQueue() { return  (numInboundDeQueued == 0) ? 0 : (timeInInboundQueue / numInboundDeQueued); }
	/** The Average of time in queue for dropped messages **/
	public long getAverageInboundDropTime() { return   (numInboundDropped == 0) ? 0 : (timeToDropInbound / numInboundDropped); }
	/** The Average clock time for local listeners to process messages **/
	public long getAverageInboundProcessTime() { return  (numInboundProcessed == 0) ? 0 : (timeToProcessInbound / numInboundProcessed); }


	
	public boolean equals(Object obj) {
		
		if (obj instanceof InboundMetric) {
			InboundMetric other = (InboundMetric) obj;
			
			return serviceIdString.equals(other.serviceIdString);
		} else
			return false;
	}

	public boolean matches(String serviceName, String serviceParam) {
		if(serviceName.equals(getServiceName())) {
			if(serviceParam == null && getServiceParameter() == null) {
				return true;
			} else if(serviceParam != null && getServiceParameter() != null) {
				return serviceParam.equals(getServiceParameter());
			}
		}
		return false;
	}

	public int hashCode() { return serviceIdString.hashCode(); }
	
	void inboundMessageQueued(Message message) {
		numInboundQueued++;
	}

	void inboundMessageDropped(Message message, long time) {
		numInboundDropped++;
		timeToDropInbound += time;
	}

	void inboundMessageDeQueued(Message message, long time) {
		numInboundDeQueued++;
		timeInInboundQueue += time;
	}

	void inboundMessageProcessed(Message message, long time) {
		numInboundProcessed++;
		timeToProcessInbound += time;
	}
	
	public void mergeMetrics(InboundMetric other) {
		numInboundQueued += other.numInboundQueued;
		numInboundDropped += other.numInboundDropped;
		timeToDropInbound += other.timeToDropInbound;
		numInboundDeQueued += other.numInboundDeQueued;
		timeInInboundQueue += other.timeInInboundQueue;
		numInboundProcessed += other.numInboundProcessed;
		timeToProcessInbound += other.timeToProcessInbound;
	}	

	public void serializeTo(Element element) throws DocumentSerializationException {

		DocumentSerializableUtilities.addString(element, "serviceName", serviceName);
		DocumentSerializableUtilities.addString(element, "serviceParam", serviceParameter);

		if (numInboundQueued != 0)
			DocumentSerializableUtilities.addInt(element, "numInboundQueued", numInboundQueued);
		
		if (numInboundDropped != 0)
			DocumentSerializableUtilities.addInt(element, "numInboundDropped", numInboundDropped);
		
		if (timeToDropInbound != 0)
			DocumentSerializableUtilities.addLong(element, "timeToDropInbound", timeToDropInbound);
		
		if (numInboundDeQueued != 0)
			DocumentSerializableUtilities.addInt(element, "numInboundDeQueued", numInboundDeQueued);
		
		if (timeInInboundQueue != 0)
			DocumentSerializableUtilities.addLong(element, "timeInInboundQueue", timeInInboundQueue);
		
		if (numInboundProcessed != 0)
			DocumentSerializableUtilities.addInt(element, "numInboundProcessed", numInboundProcessed);
		
		if (timeToProcessInbound != 0)
			DocumentSerializableUtilities.addLong(element, "timeToProcessInbound", timeToProcessInbound);
	}

	public void initializeFrom(Element element) throws DocumentSerializationException {
		for (Enumeration e=element.getChildren(); e.hasMoreElements(); ) {
			Element childElement = (TextElement) e.nextElement();
			String tagName = (String) childElement.getKey();
			
			if (tagName.equals("serviceName")) 
				serviceName = DocumentSerializableUtilities.getString(childElement);	
			else if (tagName.equals("serviceParam")) 
				serviceParameter = DocumentSerializableUtilities.getString(childElement);	
			else if (tagName.equals("numInboundQueued"))
				numInboundQueued = DocumentSerializableUtilities.getInt(childElement);
			else if (tagName.equals("numInboundDropped"))
				numInboundDropped = DocumentSerializableUtilities.getInt(childElement);
			else if (tagName.equals("timeToDropInbound"))
				timeToDropInbound = DocumentSerializableUtilities.getLong(childElement);
			else if (tagName.equals("numInboundDeQueued"))
				numInboundDeQueued = DocumentSerializableUtilities.getInt(childElement);
			else if (tagName.equals("timeInInboundQueue"))
				timeInInboundQueue = DocumentSerializableUtilities.getLong(childElement);
			else if (tagName.equals("numInboundProcessed"))
				numInboundProcessed = DocumentSerializableUtilities.getInt(childElement);
			else if (tagName.equals("timeToProcessInbound"))
				timeToProcessInbound = DocumentSerializableUtilities.getLong(childElement);
		}

		serviceIdString = serviceName + serviceParameter;		
	}
}