org.ws4d.java.communication.connection.udp

Class UDPListener

java.lang.Object

org.ws4d.java.communication.connection.udp.UDPListener

All Implemented Interfaces:

java.lang.Runnable

public class UDPListener
extends java.lang.Object
implements java.lang.Runnable

UDP listener which allows to listen for incoming UDP packets.

Each incoming packet will be handled in a separate thread.

Multicast

This listener checks for the multicast address (DPWS = 239.255.255.250) and port (DPWS = 3702). If the address and port which should be used match the multicast values, this listener registers itself for multicast datagram packets.

Method Summary

Modifier and Type	Method and Description
void	close() Stops the UDP listener.
void	ensureOpen()
boolean	equals(java.lang.Object obj)
DatagramSocket	getDatagramSocket() Returns the datagram socket which is used for incoming datagram packets.
NetworkInterface	getIface()
IPAddress	getLocalAddress()
int	getLocalPort()
UDPDatagramHandler	getUDPDatagramHandler() Returns the datagram handler for this listener.
int	hashCode()
boolean	isClosed() Indicates whether this listener is running or not.
boolean	open() Starts the UDP listener.
void	run()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Method Detail

run

public void run()

Specified by:

run in interface java.lang.Runnable

getDatagramSocket

public DatagramSocket getDatagramSocket()

Returns the datagram socket which is used for incoming datagram packets.

Returns:

the datagram socket.

getUDPDatagramHandler

public UDPDatagramHandler getUDPDatagramHandler()

Returns the datagram handler for this listener.

Returns:

the datagram handler.

isClosed

public boolean isClosed()

Indicates whether this listener is running or not.

Returns:

true if the listener is running and will handle incoming TCP connections, false otherwise.

open

public boolean open()

Starts the UDP listener.

Returns:

true if the listener is started or already running, false otherwise.

close

public void close()
           throws java.io.IOException

Stops the UDP listener.

Throws:

java.io.IOException

ensureOpen

public void ensureOpen()
                throws java.io.IOException

Throws:

java.io.IOException

getLocalPort

public int getLocalPort()

Returns:

the port

getLocalAddress

public IPAddress getLocalAddress()

getIface

public NetworkInterface getIface()

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object