net.jxta.impl.rendezvous.rendezvousMeter.RendezvousConnectionMeter Maven / Gradle / Ivy

/*
 * Copyright (c) 2001-2007 Sun Micro//Systems, Inc.  All rights reserved.
 *  
 *  The Sun Project JXTA(TM) Software License
 *  
 *  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.
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 *  2. Redistributions in binary form must reproduce the above copyright notice, 
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 *     and/or other materials provided with the distribution.
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 *  3. The end-user documentation included with the redistribution, if any, must 
 *     include the following acknowledgment: "This product includes software 
 *     developed by Sun Microsystems, Inc. for JXTA(TM) technology." 
 *     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 
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 *     Project JXTA at http://www.jxta.org.
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 *     "JXTA" appear in their name, without prior written permission of Sun.
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 *  JXTA is a registered trademark of Sun Microsystems, Inc. in the United 
 *  States and other countries.
 *  
 *  Please see the license information page at :
 *   for instructions on use of 
 *  the license in source files.
 *  
 *  ====================================================================
 *  
 *  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. 
 */

package net.jxta.impl.rendezvous.rendezvousMeter;


import net.jxta.peer.*;


/**
 * The meter about a client peer's connection to a rendezvous
 **/
public class RendezvousConnectionMeter {
    private PeerID peerID;

    private RendezvousConnectionMetric cumulativeMetrics;
    private RendezvousConnectionMetric deltaMetrics;

    private long transitionTime = 0;
    private long lastLeaseRenewalTime = 0;

    public RendezvousConnectionMeter(PeerID peerID) {
        this.peerID = peerID;
        cumulativeMetrics = new RendezvousConnectionMetric(peerID);
    }

    public RendezvousConnectionMetric getCumulativeMetrics() {
        return cumulativeMetrics;
    }

    public PeerID getPeerID() {
        return peerID;
    }

    public String getState() {
        return cumulativeMetrics.getState();
    }

    public synchronized RendezvousConnectionMetric collectMetrics() {
        RendezvousConnectionMetric prevDelta = deltaMetrics;

        deltaMetrics = null;
        return prevDelta;
    }

    private void createDeltaMetric() {
        deltaMetrics = new RendezvousConnectionMetric(cumulativeMetrics);
    }

    @Override
    public String toString() {
        return "RendezvousConnectionMeter(" + peerID + ")";
    }

    public void beginConnection() {
        transitionTime = System.currentTimeMillis();
		
        if (deltaMetrics == null) {
            createDeltaMetric();
        }

        deltaMetrics.beginConnection(transitionTime);
        cumulativeMetrics.beginConnection(transitionTime);
    }

    public void connectionEstablished(long lease) {
        long now = System.currentTimeMillis();
        long timeToConnect = now - transitionTime;

        transitionTime = now;
		
        if (deltaMetrics == null) {	
            createDeltaMetric();
        }

        deltaMetrics.connectionEstablished(transitionTime, timeToConnect, lease);
        cumulativeMetrics.connectionEstablished(transitionTime, timeToConnect, lease);
    }	

    public void leaseRenewed(long lease) {
        lastLeaseRenewalTime = System.currentTimeMillis();

        if (deltaMetrics == null) {	
            createDeltaMetric();
        }

        deltaMetrics.leaseRenewed(lastLeaseRenewalTime, lease);
        cumulativeMetrics.leaseRenewed(lastLeaseRenewalTime, lease);
    }

    public void connectionRefused() {
        transitionTime = System.currentTimeMillis();
		
        if (deltaMetrics == null) {
            createDeltaMetric();
        }

        deltaMetrics.connectionRefused(transitionTime);
        cumulativeMetrics.connectionRefused(transitionTime);
    }

    public void connectionDisconnected() {
        transitionTime = System.currentTimeMillis();
		
        if (deltaMetrics == null) {	
            createDeltaMetric();
        }

        deltaMetrics.connectionDisconnected(transitionTime);
        cumulativeMetrics.connectionDisconnected(transitionTime);
    }
}