srdihandlermeter.java

jxta平台的开发包

/*
 * Copyright (c) 2001 Sun Micro//Systems, 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 Micro//Systems, 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 Micro//Systems, 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
 * DISCLAIMED.  IN NO EVENT SHALL SUN MICRO//SystemS OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * 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: SrdiHandlerMeter.java,v 1.3 2003/05/01 17:41:20 iam Exp $
 */

package net.jxta.impl.resolver.resolverMeter;

import net.jxta.protocol.ResolverSrdiMsg;
import net.jxta.endpoint.EndpointAddress;
import net.jxta.peer.*;
import net.jxta.util.*;
import net.jxta.impl.meter.*;
import net.jxta.exception.*;
import java.util.*;

public class SrdiHandlerMeter {
	private String handlerName;

	private SrdiHandlerMetric cumulativeMetrics;
	private SrdiHandlerMetric deltaMetrics;
	private Hashtable srdiDestinationMeters = new Hashtable();

	public SrdiHandlerMeter(String handlerName) {
		this.handlerName = handlerName;
		cumulativeMetrics = new SrdiHandlerMetric(handlerName);
	}

	public SrdiHandlerMetric getCumulativeMetrics() { return cumulativeMetrics; }

	public String getHandlerName() { return handlerName; }
	
	public synchronized SrdiHandlerMetric collectMetrics() {
		SrdiHandlerMetric prevDelta = deltaMetrics;

		for (Enumeration e = srdiDestinationMeters.elements(); e.hasMoreElements(); ) {
			SrdiDestinationMeter srdiDestinationMeter = (SrdiDestinationMeter) e.nextElement();

			SrdiDestinationMetric srdiDestinationMetric = srdiDestinationMeter.collectMetrics();
			if (srdiDestinationMetric != null) {
				/* Fix-me: Apparantly, we can have a case where NO Srdi mteric is tickled, but a 
				destination metric is available.  This may be a bug.  For now, we'll create the
				delta in that case.
				*/
				if(prevDelta == null) {
					createDeltaMetric();
					prevDelta = deltaMetrics;
				}
				prevDelta.addSrdiDestinationMetric(srdiDestinationMetric);
			}
		}
		deltaMetrics = null;
		return prevDelta;
	}

	public synchronized SrdiDestinationMeter getSrdiDestinationMeter(EndpointAddress endpointAddress) {
		PeerID peerID = MetricUtilities.getPeerIdFromEndpointAddress(endpointAddress);
		return getSrdiDestinationMeter(peerID);
	}
	
	public synchronized SrdiDestinationMeter getSrdiDestinationMeter(String peer) {
		PeerID peerID = MetricUtilities.getPeerIdFromString(peer);
		return getSrdiDestinationMeter(peerID);
	}
	
	public synchronized SrdiDestinationMeter getSrdiDestinationMeter(PeerID peerID) {
		
 		SrdiDestinationMeter srdiDestinationMeter = (SrdiDestinationMeter) srdiDestinationMeters.get(peerID);

		if (srdiDestinationMeter == null) {
			srdiDestinationMeter = new SrdiDestinationMeter(peerID);
			srdiDestinationMeters.put(peerID, srdiDestinationMeter);
			cumulativeMetrics.addSrdiDestinationMetric(srdiDestinationMeter.getCumulativeMetrics());
		}

		return srdiDestinationMeter;
	}
	
	private void createDeltaMetric() {
		deltaMetrics = new SrdiHandlerMetric(handlerName);
	}

	public String toString() {
		return "SrdiHandlerMeter(" + handlerName + ")";
	}

	public void setRegistered(boolean registered) {
		if (deltaMetrics == null)	
			createDeltaMetric();

		deltaMetrics.setRegistered(registered);
		cumulativeMetrics.setRegistered(registered);
	}

	// received

	public void messageProcessed(ResolverSrdiMsg srdi, long processTime, EndpointAddress srcAddr){
		if (deltaMetrics == null)	
			createDeltaMetric();

		deltaMetrics.messageProcessed(processTime);
		cumulativeMetrics.messageProcessed(processTime);

		SrdiDestinationMeter destinationMeter = getSrdiDestinationMeter(srcAddr);
		destinationMeter.messageProcessed();
	}

	public void errorWhileProcessing(EndpointAddress srcAddr){
		if (deltaMetrics == null)	
			createDeltaMetric();
		deltaMetrics.errorWhileProcessing();
		cumulativeMetrics.errorWhileProcessing();


		SrdiDestinationMeter destinationMeter = getSrdiDestinationMeter(srcAddr);
		destinationMeter.errorWhileProcessing();
	}


	public void srdiToUnregisteredHandler(EndpointAddress srcAddr){
		if (deltaMetrics == null)	
			createDeltaMetric();
			
		deltaMetrics.srdiToUnregisteredHandler();
		cumulativeMetrics.srdiToUnregisteredHandler();

		SrdiDestinationMeter destinationMeter = getSrdiDestinationMeter(srcAddr);
		destinationMeter.srdiToUnregisteredHandler();
	}

	

	// send


	public void messageSentViaUnicast(String peer, ResolverSrdiMsg srdi) {
		if (deltaMetrics == null)	
			createDeltaMetric();

		deltaMetrics.messageSentViaUnicast();
		cumulativeMetrics.messageSentViaUnicast();	
			
		SrdiDestinationMeter destinationMeter = getSrdiDestinationMeter(peer);
		destinationMeter.messageSentViaUnicast();
	}


	public void messageSentViaWalker(ResolverSrdiMsg srdi) {
		if (deltaMetrics == null)	
			createDeltaMetric();

		deltaMetrics.messageSentViaWalker();
		cumulativeMetrics.messageSentViaWalker();		
	}



	public void errorSendingMessage() {
		if (deltaMetrics == null)	
			createDeltaMetric();

		deltaMetrics.errorSendingMessage();
		cumulativeMetrics.errorSendingMessage();		
	}

	public void errorPropagatingMessage() {
		if (deltaMetrics == null)	
			createDeltaMetric();

		deltaMetrics.errorPropagatingMessage();
		cumulativeMetrics.errorPropagatingMessage();		
	}
}