com.compoze.util
Class MulticastDiscoveryClient

java.lang.Object
  com.compoze.util.MulticastDiscoveryClient

public class MulticastDiscoveryClient
extends java.lang.Object

This class provides a client which can discover a server by creating a multicast request.

Nested Class Summary

class

MulticastDiscoveryClient.Server Class description.

Constructor Summary

MulticastDiscoveryClient(java.net.InetAddress multicastGroup, int iPort, int iMagicNumber)
Constructor.

MulticastDiscoveryClient(java.net.InetAddress multicastGroup, int iPort, int iMagicNumber, int iTimeToLive)
Constructor.

Method Summary

java.util.Collection	discover() Send a multicast request and return the first server that responds, using a timeout of 3 seconds.
java.util.Collection	discover(int iTimeout) Send a multicast request and return the first server that responds.
java.util.Collection	discover(int iTimeout, int iRetries) Send a multicast request and return the first server that responds.
protected void	finalize() Finalize.
static void	main(java.lang.String[] args) Main.

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MulticastDiscoveryClient

public MulticastDiscoveryClient(java.net.InetAddress multicastGroup,
                                int iPort,
                                int iMagicNumber,
                                int iTimeToLive)
                         throws java.io.IOException

Constructor.

Parameters:

multicastGroup - the multicast group

iPort - the multicast port

iMagicNumber - the magic number

iTimeToLive - time to live for send packet

Throws:

java.io.IOException - if an i/o error occurred

MulticastDiscoveryClient

public MulticastDiscoveryClient(java.net.InetAddress multicastGroup,
                                int iPort,
                                int iMagicNumber)
                         throws java.io.IOException

Constructor.

Parameters:

multicastGroup - the multicast group

iPort - the multicast port

iMagicNumber - the magic number

iTimeToLive - time to live for send packet

Throws:

java.io.IOException - if an i/o error occurred

Method Detail

discover

public java.util.Collection discover()
                              throws java.io.IOException

Send a multicast request and return the first server that responds, using a timeout of 3 seconds.

Parameters:

iTimeout - the number of milliseconds to wait before timing out

Returns:

a collection of servers

Throws:

java.io.IOException - if an i/o error occurred

discover

public java.util.Collection discover(int iTimeout)
                              throws java.io.IOException

Send a multicast request and return the first server that responds.

Parameters:

iTimeout - the number of milliseconds to wait before timing out

iRetries - the number of retries to make

Returns:

a collection of servers

Throws:

java.io.IOException - if an i/o error occurred

discover

public java.util.Collection discover(int iTimeout,
                                     int iRetries)
                              throws java.io.IOException

Send a multicast request and return the first server that responds.

Parameters:

iTimeout - the number of milliseconds to wait before timing out

iRetries - the number of retries to make

Returns:

a collection of servers

Throws:

java.io.IOException - if an i/o error occurred

finalize

protected void finalize()
                 throws java.lang.Throwable

Finalize. Called by garbage collector to free resources.

Overrides:

finalize in class java.lang.Object

Throws:

java.lang.Throwable - anything may be thrown in a finalizer

main

public static void main(java.lang.String[] args)

Main.

Parameters:

args - command line arguments