net.jxta.impl.endpoint.transportMeter.TransportMeter Maven / Gradle / Ivy

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 * Copyright (c) 2001-2007 Sun Microsystems, Inc.  All rights reserved.
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 *     developed by Sun Microsystems, Inc. for JXTA(TM) technology." 
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package net.jxta.impl.endpoint.transportMeter;


import net.jxta.endpoint.EndpointAddress;
import net.jxta.impl.meter.MetricUtilities;
import net.jxta.peer.PeerID;

import java.util.Enumeration;
import java.util.Hashtable;


/**
 * Transport Meter for a specific registered Transport
 */
public class TransportMeter {
    public static final EndpointAddress UNKNOWN_ADDRESS = new EndpointAddress("", "", 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 = 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 peerID  destination PeerID
     * @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 = 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;
    }

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