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org.jempeg.empeg.protocol
Class NetworkEmpegDiscoverer  

java.lang.Object
  org.jempeg.empeg.protocol.AbstractEmpegDiscoverer
      org.jempeg.empeg.protocol.NetworkEmpegDiscoverer

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public class NetworkEmpegDiscoverer

extends AbstractEmpegDiscoverer

NetworkEmpegDiscoverer implements discovery over a Socket-based TCP/IP network. Discovery is based on broadcasting a datagram to over port 8300 and listening for the Empeg to respond.

Version:

2.0a1 $Date: 2002/01/10 02:48:26 $

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Nested Class Summary
protected  class	NetworkEmpegDiscoverer.BroadcastRunnable

 

Field Summary
private static int	DISCOVERY_PORT
private static java.lang.String	DISCOVERY_STRING
private static int	MAX_RETRIES
private  java.lang.String	myDoNotBroadcastTo

 

Fields inherited from class org.jempeg.empeg.protocol.AbstractEmpegDiscoverer

 

Constructor Summary

NetworkEmpegDiscoverer()           Constructs a new NetworkEmpegDiscoverer using 255.255.255.255 as the broadcast address.

 

Method Summary
protected  void	broadcastDiscoveryRequest(java.net.DatagramSocket _socket, java.net.InetAddress _broadcastAddress)
static SocketConnection	createConnection(java.net.InetAddress _inetAddress)           Creates a SocketConnection based on the given InetAddress
boolean	discover(int _timeoutMillis)           Implemented by subclasses.
static void	main(java.lang.String[] _args)
protected  boolean	parseDiscoveryResponse(java.net.DatagramPacket _packet)
void	setDoNotBroadcastTo(java.lang.String _doNotBroadcastTo)           Sets a comma-separated list of broadcast addresses to not broadcast on.
protected  boolean	waitForDiscoveryResponses(java.net.DatagramSocket _socket, int _timeoutMillis, java.util.Vector _discoveredVec)

 

Methods inherited from class org.jempeg.empeg.protocol.AbstractEmpegDiscoverer

addEmpegDiscovererListener, fireEmpegDiscovered, fireEmpegDiscovered, getEmpegName, getPlayerType, isEmpegConnected

 

Methods inherited from class java.lang.Object

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

 

Field Detail

DISCOVERY_PORT

private static final int DISCOVERY_PORT

See Also:

Constant Field Values

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MAX_RETRIES

private static final int MAX_RETRIES

See Also:

Constant Field Values

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DISCOVERY_STRING

private static final java.lang.String DISCOVERY_STRING

See Also:

Constant Field Values

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myDoNotBroadcastTo

private java.lang.String myDoNotBroadcastTo

Constructor Detail

NetworkEmpegDiscoverer

public NetworkEmpegDiscoverer()
                       throws java.io.IOException

Constructs a new NetworkEmpegDiscoverer using 255.255.255.255 as the broadcast address.

Method Detail

createConnection

public static SocketConnection createConnection(java.net.InetAddress _inetAddress)
                                         throws java.io.IOException

Creates a SocketConnection based on the given InetAddress

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setDoNotBroadcastTo

public void setDoNotBroadcastTo(java.lang.String _doNotBroadcastTo)

Sets a comma-separated list of broadcast addresses to not broadcast on. This is an optimization if someone has a NIC that they KNOW will not have an Empeg on it.

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discover

public boolean discover(int _timeoutMillis)
                 throws java.io.IOException

Description copied from class: AbstractEmpegDiscoverer

Implemented by subclasses. This will actually perform the subclass-dependent mechanism of finding an Empeg (within the given timeout time)

Specified by:

discover in class AbstractEmpegDiscoverer

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broadcastDiscoveryRequest

protected void broadcastDiscoveryRequest(java.net.DatagramSocket _socket,
                                         java.net.InetAddress _broadcastAddress)
                                  throws java.io.IOException

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waitForDiscoveryResponses

protected boolean waitForDiscoveryResponses(java.net.DatagramSocket _socket,
                                            int _timeoutMillis,
                                            java.util.Vector _discoveredVec)
                                     throws java.io.IOException

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parseDiscoveryResponse

protected boolean parseDiscoveryResponse(java.net.DatagramPacket _packet)
                                  throws java.io.IOException

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main

public static void main(java.lang.String[] _args)
                 throws java.lang.Throwable

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