endpointservicemonitor.java

JXTA&#8482 is a set of open, generalized peer-to-peer (P2P) protocols that allow any networked devi

/*
 * Copyright (c) 2001-2007 Sun Microsystems, Inc.  All rights reserved.
 *  
 *  The Sun Project JXTA(TM) Software License
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 *  modification, are permitted provided that the following conditions are met:
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 *     developed by Sun Microsystems, Inc. for JXTA(TM) technology." 
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 *     and wherever such third-party acknowledgments normally appear.
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 *  <http://www.jxta.org/project/www/license.html> for instructions on use of 
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 *  
 *  ====================================================================
 *  
 *  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.
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 *  This license is based on the BSD license adopted by the Apache Foundation. 
 */

package net.jxta.impl.endpoint.endpointMeter;


import java.util.Hashtable;
import java.util.Map;

import net.jxta.endpoint.EndpointAddress;
import net.jxta.impl.meter.GenericServiceMonitor;
import net.jxta.meter.ServiceMetric;
import net.jxta.meter.ServiceMonitorFilter;


/**
 *  Standard EndpointService Monitor
 **/
public class EndpointServiceMonitor extends GenericServiceMonitor {
    private EndpointServiceMetric cumulativeEndpointServiceMetric;
    private final Map<String, InboundMeter> inboundMeters = new Hashtable<String, InboundMeter>();
    private final Map<EndpointAddress, OutboundMeter> outboundMeters = new Hashtable<EndpointAddress, OutboundMeter>();
    private final Map<String, PropagationMeter> propagationMeters = new Hashtable<String, PropagationMeter>();
    private final EndpointMeter endpointMeter = new EndpointMeter();

    public EndpointServiceMonitor() {}

    /**
     *  {@inheritDoc}
     */
    @Override
    protected void init() {
        cumulativeEndpointServiceMetric = (EndpointServiceMetric) getCumulativeServiceMetric();
        cumulativeEndpointServiceMetric.setEndpointMetric(endpointMeter.getCumulativeMetrics());
    }

    public EndpointMeter getEndpointMeter() {
        return endpointMeter;
    }

    public synchronized InboundMeter getInboundMeter(String serviceName, String serviceParam) {
        String address = serviceName;

        if (null != serviceParam) {
            address += "/" + serviceParam;
        }

        InboundMeter inboundMeter = inboundMeters.get(address);

        if (inboundMeter == null) {
            inboundMeter = new InboundMeter(serviceName, serviceParam);
            inboundMeters.put(address, inboundMeter);
            cumulativeEndpointServiceMetric.addInboundMetric(inboundMeter.getCumulativeMetrics());
        }

        return inboundMeter;
    }

    public synchronized PropagationMeter getPropagationMeter(String serviceName, String serviceParam) {
        String address = serviceName;

        if (null != serviceParam) {
            address += "/" + serviceParam;
        }

        PropagationMeter propagationMeter = propagationMeters.get(address);

        if (propagationMeter == null) {
            propagationMeter = new PropagationMeter(serviceName, serviceParam);
            propagationMeters.put(address, propagationMeter);
            cumulativeEndpointServiceMetric.addPropagationMetric(propagationMeter.getCumulativeMetrics());
        }

        return propagationMeter;
    }

    public synchronized OutboundMeter getOutboundMeter(EndpointAddress endpointAddress) {
        OutboundMeter outboundMeter = outboundMeters.get(endpointAddress);

        if (outboundMeter == null) {
            outboundMeter = new OutboundMeter(endpointAddress);
            cumulativeEndpointServiceMetric.addOutboundMetric(outboundMeter.getCumulativeMetrics());
            outboundMeters.put(endpointAddress, outboundMeter);
        }

        return outboundMeter;
    }

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

        if (origEndpointServiceMetric == null) {
            return null;
        }

        EndpointServiceMonitorFilter endpointServiceMonitorFilter = (EndpointServiceMonitorFilter) serviceMonitorFilter;

        return origEndpointServiceMetric.shallowCopy(endpointServiceMonitorFilter);
    }

    /**
     *  {@inheritDoc}
     */
    @Override
    public ServiceMetric getCumulativeServiceMetric(ServiceMonitorFilter serviceMonitorFilter, long fromTime, long toTime) {
        EndpointServiceMetric origEndpointServiceMetric = (EndpointServiceMetric) cumulativeServiceMetric;
        EndpointServiceMonitorFilter endpointServiceMonitorFilter = (EndpointServiceMonitorFilter) serviceMonitorFilter;

        return origEndpointServiceMetric.deepCopy(endpointServiceMonitorFilter);
    }

    /**
     *  {@inheritDoc}
     */
    @Override
    protected ServiceMetric collectServiceMetrics() {
        EndpointServiceMetric endpointServiceMetric = (EndpointServiceMetric) createServiceMetric();

        boolean anyData = false;

        for (InboundMeter inboundMeter : inboundMeters.values()) {
            InboundMetric inboundMetric = inboundMeter.collectMetrics(); // clears delta from meter

            if (inboundMetric != null) {
                endpointServiceMetric.addInboundMetric(inboundMetric);
                anyData = true;
            }
        }

        for (OutboundMeter outboundMeter : outboundMeters.values()) {
            OutboundMetric outboundMetric = outboundMeter.collectMetrics(); // clears delta from meter

            if (outboundMetric != null) {
                endpointServiceMetric.addOutboundMetric(outboundMetric);
                anyData = true;
            }
        }

        for (PropagationMeter propagationMeter : propagationMeters.values()) {
            PropagationMetric propagationMetric = propagationMeter.collectMetrics(); // clears delta from meter

            if (propagationMetric != null) {
                endpointServiceMetric.addPropagationMetric(propagationMetric);
                anyData = true;
            }
        }

        EndpointMetric endpointMetric = endpointMeter.collectMetrics();

        if (endpointMetric != null) {
            endpointServiceMetric.setEndpointMetric(endpointMetric);
            anyData = true;
        }

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