propagatedpipeclient.java

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

/*
 * Copyright (c) 2006-2007 Sun Microsystems, Inc.  All rights reserved.
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 *  The Sun Project JXTA(TM) Software License
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 *     developed by Sun Microsystems, Inc. for JXTA(TM) technology." 
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 *  This software consists of voluntary contributions made by many individuals 
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package tutorial.propagated;


import net.jxta.endpoint.Message;
import net.jxta.endpoint.MessageElement;
import net.jxta.endpoint.StringMessageElement;
import net.jxta.endpoint.TextDocumentMessageElement;
import net.jxta.endpoint.MessageTransport;
import net.jxta.peergroup.PeerGroup;
import net.jxta.pipe.InputPipe;
import net.jxta.pipe.OutputPipe;
import net.jxta.pipe.PipeMsgEvent;
import net.jxta.pipe.PipeMsgListener;
import net.jxta.pipe.PipeService;
import net.jxta.platform.NetworkManager;
import net.jxta.protocol.PipeAdvertisement;
import net.jxta.protocol.RouteAdvertisement;
import net.jxta.impl.endpoint.router.EndpointRouter;
import net.jxta.impl.endpoint.router.RouteControl;
import net.jxta.document.XMLDocument;
import net.jxta.document.MimeMediaType;

import java.io.File;
import java.io.IOException;


/**
 * Simple example to illustrate the use of propagated pipes
 */
public class PropagatedPipeClient implements PipeMsgListener {
    private InputPipe inputPipe;
    private MessageElement routeAdvElement = null;
    private RouteControl routeControl = null;
    public static final String ROUTEADV = "ROUTE";

    /**
     * {@inheritDoc}
     */
    public void pipeMsgEvent(PipeMsgEvent event) {

        Message message = event.getMessage();

        if (message == null) {
            return;
        }
        MessageElement sel = message.getMessageElement(PropagatedPipeServer.NAMESPACE, PropagatedPipeServer.PONGTAG);
        MessageElement nel = message.getMessageElement(PropagatedPipeServer.NAMESPACE, PropagatedPipeServer.SRCNAMETAG);

        if (sel == null) {
            return;
        }
        // Since propagation relies on ip multicast whenever possible, it is to 
        // to be expected that a unicasted message can be intercepted through ip
        // multicast
        System.out.println("Received a pong from :" + nel.toString() + " " + sel.toString());
    }

    /**
     * main
     *
     * @param args command line args
     */
    public static void main(String args[]) {
        PropagatedPipeClient client = new PropagatedPipeClient();
        NetworkManager manager = null;

        try {
            manager = new NetworkManager(NetworkManager.ConfigMode.ADHOC, "PropagatedPipeClient",
                    new File(new File(".cache"), "PropagatedPipeClient").toURI());
            manager.startNetwork();
        } catch (Exception e) {
            e.printStackTrace();
            System.exit(-1);
        }
        PeerGroup netPeerGroup = manager.getNetPeerGroup();
        PipeAdvertisement pipeAdv = PropagatedPipeServer.getPipeAdvertisement();
        PipeService pipeService = netPeerGroup.getPipeService();

        System.out.println("Creating Propagated InputPipe for " + pipeAdv.getPipeID());
        try {
            client.inputPipe = pipeService.createInputPipe(pipeAdv, client);
        } catch (IOException e) {
            e.printStackTrace();
            System.exit(-1);
        }
        MessageTransport endpointRouter = (netPeerGroup.getEndpointService()).getMessageTransport("jxta");

        if (endpointRouter != null) {
            client.routeControl = (RouteControl) endpointRouter.transportControl(EndpointRouter.GET_ROUTE_CONTROL, null);
            RouteAdvertisement route = client.routeControl.getMyLocalRoute();

            if (route != null) {
                client.routeAdvElement = new TextDocumentMessageElement(ROUTEADV, (XMLDocument) route.getDocument(MimeMediaType.XMLUTF8), null);
            }
        }

        System.out.println("Creating Propagated OutputPipe for " + pipeAdv.getPipeID());
        OutputPipe output = null;

        try {
            output = pipeService.createOutputPipe(pipeAdv, 1);
        } catch (IOException e) {
            e.printStackTrace();
            System.exit(-1);
        }
        int i = 0;

        try {
            while (i < 10000000) {
                Message ping = new Message();
                ping.addMessageElement(PropagatedPipeServer.NAMESPACE,
                        new StringMessageElement(PropagatedPipeServer.SRCIDTAG, netPeerGroup.getPeerID().toString(), null));
                ping.addMessageElement(PropagatedPipeServer.NAMESPACE,
                        new StringMessageElement(PropagatedPipeServer.SRCNAMETAG, netPeerGroup.getPeerName() + " #" + i++, null));
                if (client.routeAdvElement != null && client.routeControl != null) {
                    ping.addMessageElement(PropagatedPipeServer.NAMESPACE, client.routeAdvElement);
                }

                System.out.println("Sending message :" + (i - 1));
                boolean sucess = output.send(ping);
                System.out.println("Send oing message status :"+sucess);
            }
            Thread.sleep(3000);
            manager.stopNetwork();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}