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package Examples.J_JXTA_Multicast_Socket;
import Examples.Z_Tools_And_Others.Tools;
import java.io.File;
import java.io.IOException;
import java.net.DatagramPacket;
import net.jxta.document.AdvertisementFactory;
import net.jxta.exception.PeerGroupException;
import net.jxta.id.IDFactory;
import net.jxta.peer.PeerID;
import net.jxta.peergroup.PeerGroup;
import net.jxta.peergroup.PeerGroupID;
import net.jxta.pipe.PipeID;
import net.jxta.pipe.PipeService;
import net.jxta.platform.NetworkConfigurator;
import net.jxta.platform.NetworkManager;
import net.jxta.protocol.PipeAdvertisement;
import net.jxta.socket.JxtaMulticastSocket;
public class RendezVous_Hans_A_Multicast_Participant {
// Static attributes
public static final String Name = "RendezVous Hans, a JXTA multicast socket participant";
public static final int TcpPort = 9731;
public static final PeerID PID = IDFactory.newPeerID(PeerGroupID.defaultNetPeerGroupID, Name.getBytes());
public static final File ConfigurationFile = new File("." + System.getProperty("file.separator") + Name);
public static PipeAdvertisement GetPipeAdvertisement() {
// Creating a Pipe Advertisement
PipeAdvertisement MyPipeAdvertisement = (PipeAdvertisement) AdvertisementFactory.newAdvertisement(PipeAdvertisement.getAdvertisementType());
PipeID MyPipeID = IDFactory.newPipeID(PeerGroupID.defaultNetPeerGroupID, Name.getBytes());
MyPipeAdvertisement.setPipeID(MyPipeID);
MyPipeAdvertisement.setType(PipeService.PropagateType);
MyPipeAdvertisement.setName("Test Multicast");
MyPipeAdvertisement.setDescription("Created by " + Name);
return MyPipeAdvertisement;
}
public static void main(String[] args) {
try {
// Removing any existing configuration?
Tools.CheckForExistingConfigurationDeletion(Name, ConfigurationFile);
// Creation of network manager
NetworkManager MyNetworkManager = new NetworkManager(NetworkManager.ConfigMode.RENDEZVOUS,
Name, ConfigurationFile.toURI());
// Retrieving the network configurator
NetworkConfigurator MyNetworkConfigurator = MyNetworkManager.getConfigurator();
// Setting more configuration
MyNetworkConfigurator.setTcpPort(TcpPort);
MyNetworkConfigurator.setTcpEnabled(true);
MyNetworkConfigurator.setTcpIncoming(true);
MyNetworkConfigurator.setTcpOutgoing(true);
Tools.CheckForMulticastUsage(Name, MyNetworkConfigurator);
// Setting the Peer ID
Tools.PopInformationMessage(Name, "Setting the peer ID to :\n\n" + PID.toString());
MyNetworkConfigurator.setPeerID(PID);
// Starting the JXTA network
Tools.PopInformationMessage(Name, "Start the JXTA network");
PeerGroup NetPeerGroup = MyNetworkManager.startNetwork();
// Waiting for other peers to connect to JXTA
Tools.PopInformationMessage(Name, "Waiting for other peers to connect to JXTA");
// Creating the JXTA socket server
JxtaMulticastSocket MyMulticastSocket = new JxtaMulticastSocket(NetPeerGroup, GetPipeAdvertisement());
Tools.PopInformationMessage(Name, "JXTA multicast socket created");
// Creating a datagram and sending it
String Message = "Hello from " + Name;
DatagramPacket MyDatagramPacket = new DatagramPacket(Message.getBytes(), Message.length());
Tools.PopInformationMessage(Name, "Multicasting following message:\n\n" + Message);
MyMulticastSocket.send(MyDatagramPacket);
// Sleeping a little (10 seconds)
Tools.GoToSleep(10000);
// Closing the JXTA socket
MyMulticastSocket.close();
// Retrieving connected peers
Tools.popConnectedPeers(NetPeerGroup.getRendezVousService(), Name);
// Stopping the network
Tools.PopInformationMessage(Name, "Stop the JXTA network");
MyNetworkManager.stopNetwork();
} catch (IOException Ex) {
Tools.PopErrorMessage(Name, Ex.toString());
} catch (PeerGroupException Ex) {
Tools.PopErrorMessage(Name, Ex.toString());
}
}
}