rendezvousservicemonitor.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
 * DISCLAIMED.  IN NO EVENT SHALL SUN MICROSYSTEMS OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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 * 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: RendezvousServiceMonitor.java,v 1.8 2005/12/13 21:25:14 bondolo Exp $
 */

package net.jxta.impl.rendezvous.rendezvousMeter;


import net.jxta.meter.*;
import net.jxta.impl.meter.*;
import net.jxta.peer.*;
import net.jxta.endpoint.*;
import net.jxta.util.*;
import net.jxta.exception.*;
import net.jxta.id.*;

import java.util.*;


/**
 * The Service Monitor for the standard Rendezvous Service
 **/
public class RendezvousServiceMonitor extends GenericServiceMonitor {
    private Hashtable clientConnectionMeters = new Hashtable();
    private LinkedList rendezvousConnectionMeters = new LinkedList();
	
    private RendezvousMeter rendezvousMeter = new RendezvousMeter();
	
    private RendezvousServiceMetric cumulativeRendezvousServiceMetric;

    /**
     * {@inheritDoc}
     **/
    protected void init() {
        cumulativeRendezvousServiceMetric = (RendezvousServiceMetric) getCumulativeServiceMetric();
        cumulativeRendezvousServiceMetric.setRendezvousMetric(rendezvousMeter.getCumulativeMetrics());
    }

    /**
     * Get the General RendezvousMeter
     */
    public RendezvousMeter getRendezvousMeter() {
        return rendezvousMeter;
    }

    /**
     * Get a Client Connection Meter 
     * @param endpointAddress containing Peer Id for the Meter
     **/
    public synchronized ClientConnectionMeter getClientConnectionMeter(EndpointAddress endpointAddress) {
        PeerID peerID = MetricUtilities.getPeerIdFromEndpointAddress(endpointAddress);

        return getClientConnectionMeter(peerID);
    }

    /**
     * Get a Client Connection Meter 
     * @param peerId Peer Id for the Meter
     **/
    public synchronized ClientConnectionMeter getClientConnectionMeter(PeerID peerId) {
        ClientConnectionMeter clientConnectionMeter = (ClientConnectionMeter) clientConnectionMeters.get(peerId);

        if (clientConnectionMeter == null) {
            clientConnectionMeter = new ClientConnectionMeter(peerId);
            clientConnectionMeters.put(peerId, clientConnectionMeter);
            cumulativeRendezvousServiceMetric.addClientConnectionMetric(clientConnectionMeter.getCumulativeMetrics());
        }
		 
        return clientConnectionMeter;
    }

    /**
     * Get a Client Connection Meter 
     * @param peerIdString Peer Id as a String
     **/
    public synchronized ClientConnectionMeter getClientConnectionMeter(String peerIdString) {
        PeerID peerID = null;
		
        peerID = MetricUtilities.getPeerIdFromString(peerIdString);

        return getClientConnectionMeter(peerID);
    }

    /*
     public synchronized void removeClientConnectionMeter(String peerId) {
     clientConnectionMeters.remove(peerId);
     }
     */

    /**
     * Get a Rendezvous Connection Meter 
     * @param peerIdStr Peer Id for the Meter as a String
     **/
    public synchronized RendezvousConnectionMeter getRendezvousConnectionMeter(String peerIdStr) {
        PeerID peerID = MetricUtilities.getPeerIdFromString(peerIdStr);

        return getRendezvousConnectionMeter(peerID);
    }

    /**
     * Get a Rendezvous Connection Meter 
     * @param peerId Peer Id for the Meter
     **/
    public synchronized RendezvousConnectionMeter getRendezvousConnectionMeter(PeerID peerID) {
        if (peerID == null) { 
            peerID = MetricUtilities.BAD_PEERID;
        }

        for (Iterator i = rendezvousConnectionMeters.iterator(); i.hasNext();) {
            RendezvousConnectionMeter rendezvousConnectionMeter = (RendezvousConnectionMeter) i.next();

            if (peerID.equals(rendezvousConnectionMeter.getPeerID())) {
                return rendezvousConnectionMeter;
            }
        }

        RendezvousConnectionMeter rendezvousConnectionMeter = new RendezvousConnectionMeter(peerID);

        rendezvousConnectionMeters.add(rendezvousConnectionMeter);
        cumulativeRendezvousServiceMetric.addRendezvousConnectionMetric(rendezvousConnectionMeter.getCumulativeMetrics());

        return rendezvousConnectionMeter;
    }

    /*
     public synchronized void removeRendezvousConnectionMeter(PeerID peerID) {
     if (peerID == null)
     return;
     
     for (Iterator i = rendezvousConnectionMeters.iterator(); i.hasNext(); ) {
     RendezvousConnectionMeter rendezvousConnectionMeter = (RendezvousConnectionMeter)i.next();
     if (peerID.equals(rendezvousConnectionMeter.getPeerID())) {
     i.remove();
     return;
     }
     }
     }
     */

    /**
     * {@inheritDoc}
     **/
    protected synchronized ServiceMetric collectServiceMetrics() {
        RendezvousServiceMetric rendezvousServiceMetric = (RendezvousServiceMetric) createServiceMetric();

        boolean anyData = false;
		
        for (Enumeration e = clientConnectionMeters.elements(); e.hasMoreElements();) {
            ClientConnectionMeter clientConnectionMeter = (ClientConnectionMeter) e.nextElement();
            ClientConnectionMetric clientConnectionMetric = clientConnectionMeter.collectMetrics(); // clears delta from meter

            if (clientConnectionMetric != null) {
                rendezvousServiceMetric.addClientConnectionMetric(clientConnectionMetric);
                anyData = true;
            }
        }

        for (Iterator i = rendezvousConnectionMeters.iterator(); i.hasNext();) {
            RendezvousConnectionMeter rendezvousConnectionMeter = (RendezvousConnectionMeter) i.next();
            RendezvousConnectionMetric rendezvousConnectionMetric = rendezvousConnectionMeter.collectMetrics(); // clears delta from meter

            if (rendezvousConnectionMetric != null) {
                rendezvousServiceMetric.addRendezvousConnectionMetric(rendezvousConnectionMetric);
                anyData = true;
            }
        }

        RendezvousMetric rendezvousMetric = rendezvousMeter.collectMetrics();

        if (rendezvousMetric != null) {
            rendezvousServiceMetric.setRendezvousMetric(rendezvousMetric);
            anyData = true;
        }

        if (anyData) {
            return rendezvousServiceMetric;
        } else {
            return null;
        }
    }

    /**
     * {@inheritDoc}
     **/
    public ServiceMetric getServiceMetric(ServiceMonitorFilter serviceMonitorFilter, long fromTime, long toTime, int pulseIndex, long reportRate) {
        int deltaReportRateIndex = monitorManager.getReportRateIndex(reportRate);
        RendezvousServiceMetric origMetric = (RendezvousServiceMetric) deltaServiceMetrics[deltaReportRateIndex];

        if (origMetric == null) {
            return null;
        } 
		
        RendezvousServiceMonitorFilter rendezvousServiceMonitorFilter = (RendezvousServiceMonitorFilter) serviceMonitorFilter;

        return origMetric.shallowCopy(rendezvousServiceMonitorFilter);
    }

    /**
     * {@inheritDoc}
     **/
    public ServiceMetric getCumulativeServiceMetric(ServiceMonitorFilter serviceMonitorFilter, long fromTime, long toTime) {
        RendezvousServiceMonitorFilter rendezvousServiceMonitorFilter = (RendezvousServiceMonitorFilter) serviceMonitorFilter;
        RendezvousServiceMetric origMetric = (RendezvousServiceMetric) getCumulativeServiceMetric();

        return origMetric.deepCopy(rendezvousServiceMonitorFilter);
    }

}