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Ziver Koc 2011-02-15 19:40:02 +00:00
parent 4503531ec9
commit 80c6a52c69
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src/zutil/network/threaded/ThreadedUDPNetwork.java
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package zutil.net.threaded;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.MulticastSocket;
import java.net.SocketException;
/**
* A simple web server that handles both cookies and
* sessions for all the clients
*
* @author Ziver
*/
public class ThreadedUDPNetwork extends Thread{
public static final int BUFFER_SIZE = 512;
// Type of UDP socket
enum UDPType{
MULTICAST,
UNICAST
}
protected final UDPType type;
protected final int port;
protected DatagramSocket socket;
protected ThreadedUDPNetworkThread thread = null;
/**
* Creates a new unicast Clien instance of the class
*
* @param thread is the class that will handle incoming packets
* @throws SocketException
*/
public ThreadedUDPNetwork(ThreadedUDPNetworkThread thread) throws SocketException{
this.type = UDPType.UNICAST;
this.port = -1;
setThread( thread );
socket = new DatagramSocket();
}
/**
* Creates a new unicast Server instance of the class
*
* @param thread is the class that will handle incoming packets
* @param port is the port that the server should listen to
* @throws SocketException
*/
public ThreadedUDPNetwork(ThreadedUDPNetworkThread thread, int port) throws SocketException{
this.type = UDPType.UNICAST;
this.port = port;
setThread( thread );
socket = new DatagramSocket( port );
}
/**
* Creates a new multicast Server instance of the class
*
* @param thread is the class that will handle incoming packets
* @param port is the port that the server should listen to
* @param multicast_addr is the multicast address that the server will listen on
* @throws IOException
*/
public ThreadedUDPNetwork(ThreadedUDPNetworkThread thread, String multicast_addr, int port ) throws IOException{
this.type = UDPType.MULTICAST;
this.port = port;
setThread( thread );
// init udp socket
MulticastSocket msocket = new MulticastSocket( port );
InetAddress group = InetAddress.getByName( multicast_addr );
msocket.joinGroup( group );
socket = msocket;
}
public void run(){
try{
while(true){
byte[] buf = new byte[BUFFER_SIZE];
DatagramPacket packet = new DatagramPacket(buf, buf.length);
socket.receive( packet );
if( thread!=null )
thread.receivedPacket( packet, this );
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Sends the given packet
*
* @param packet is the packet to send
* @throws IOException
*/
public synchronized void send( DatagramPacket packet ) throws IOException{
socket.send(packet);
}
/**
* Sets the thread that will handle the incoming packets
*
* @param thread is the thread
*/
public void setThread(ThreadedUDPNetworkThread thread){
this.thread = thread;
}
}