transportmeter.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
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 * 1. Redistributions of source code must retain the above copyright
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 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
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 *    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
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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: TransportMeter.java,v 1.6 2003/05/14 01:13:18 iam Exp $
 */

package net.jxta.impl.endpoint.transportMeter;

import net.jxta.peer.*;
import net.jxta.peergroup.*;
import net.jxta.endpoint.*;
import net.jxta.impl.endpoint.*;
import net.jxta.meter.*;
import net.jxta.impl.meter.*;
import net.jxta.platform.ModuleSpecID;

import net.jxta.util.documentSerializable.*;

import java.net.*;
import java.util.*;

/**
  * Transport Meter for a specific registered Transport 
  **/
public class TransportMeter {
	public static final EndpointAddress UNKNOWN_ADDRESS = new EndpointAddress("<unknown>", "<unknown>", null, null);
	public static final String UNKNOWN_PEER = MetricUtilities.UNKNOWN_PEERID.toString();
	private String protocol;
	private EndpointAddress endpointAddress;
	
	private Hashtable transportBindingMeters = new Hashtable();
	private TransportMetric cumulativeMetrics;
	
	public TransportMeter(String protocol, EndpointAddress endpointAddress) {
		this.endpointAddress = endpointAddress;
		this.protocol = protocol;
		cumulativeMetrics = new TransportMetric(this);
	}

	public TransportMetric getCumulativeMetrics() { return cumulativeMetrics; }

	public TransportMetric collectMetrics() {
		TransportMetric transportMetric = new TransportMetric(this);
		boolean anyData = false;

		for (Enumeration e = transportBindingMeters.elements(); e.hasMoreElements(); ) {
			TransportBindingMeter transportBindingMeter = (TransportBindingMeter) e.nextElement();
			TransportBindingMetric transportBindingMetric = transportBindingMeter.collectMetrics();
			
			if (transportBindingMetric != null) {
				transportMetric.addTransportBindingMetric(transportBindingMetric);
				anyData = true;
			}
		}

		if (anyData) 
			return transportMetric;
		else
			return null;		
	}

		
	/**
	  * Get a specific Binding Meter corresponding to a connection for this transport
	  * @param PeerIdString PeerID of destination 
	  * @param destinationAddress Destination Address of connected peer transport
	  * @return The Binding Meter for tracking this connection
	  **/
	public synchronized TransportBindingMeter getTransportBindingMeter(String peerIdString, EndpointAddress destinationAddress) {
		PeerID peerID = MetricUtilities.getPeerIdFromString(peerIdString);
		return getTransportBindingMeter(peerID, destinationAddress);
	}

	/**
	  * Get a specific Binding Meter corresponding to a connection for this transport
	  * @param PeerIdString PeerID of destination 
	  * @param destinationAddress Destination Address of connected peer transport
	  * @return The Binding Meter for tracking this connection
	  **/
	public synchronized TransportBindingMeter getTransportBindingMeter(PeerID peerID, EndpointAddress destinationAddress) {
		destinationAddress = new EndpointAddress(destinationAddress, null, null);
		
 		TransportBindingMeter transportBindingMeter = (TransportBindingMeter) transportBindingMeters.get(destinationAddress);

		if (transportBindingMeter == null) {
			transportBindingMeter = new TransportBindingMeter(peerID, destinationAddress);
			transportBindingMeters.put(destinationAddress, transportBindingMeter);
			cumulativeMetrics.addTransportBindingMetric(transportBindingMeter.getCumulativeMetrics());
		} else
			transportBindingMeter.setPeerID(peerID);
	
		return transportBindingMeter;
	}

	public Enumeration getTransportBindingMeters() { return transportBindingMeters.elements(); }

	public int getTransportBindingCount() { return transportBindingMeters.size(); }


	public String getProtocol() { return protocol; }
	public EndpointAddress getEndpointAddress() { return endpointAddress; }

	public String toString() {
		return "TransportMeter(" + endpointAddress + ")";
	}
}