viceroy.net
Class DummyCommunicationManager

java.lang.Object
  |
  +--viceroy.net.DummyCommunicationManager

All Implemented Interfaces:

ViceroyPeerManager

public class DummyCommunicationManager

extends java.lang.Object

implements ViceroyPeerManager

Implementation of Communication manager

Author:

Anat Talmy

, Oren Dobzinski

Field Summary

ViceroyPeer	entrancePoint The entrance point of the net
private static org.apache.log4j.Logger	logger logger for debug

Constructor Summary

DummyCommunicationManager()

Method Summary

void	addListener(Listener listener, AuthorizedViceroyPeer bounded) adds a new listener to the system.
void	discover(ViceroyPeer me) finds the successor of me in the Viceroy network.
void	leave(AuthorizedViceroyPeer peer) removes the given peer from the network.
Address	register(AuthorizedViceroyPeer peer) registers a new ViceroyPeer in the system.
void	send(ViceroyPeer destination, Message message) send a message
void	setEntrancePoint(ViceroyPeer _entrancePoint) Sets the entrance point of the net

Methods inherited from class java.lang.Object

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

Field Detail

logger

private static org.apache.log4j.Logger logger

logger for debug

entrancePoint

public ViceroyPeer entrancePoint

The entrance point of the net

Constructor Detail

DummyCommunicationManager

public DummyCommunicationManager()

Method Detail

setEntrancePoint

public void setEntrancePoint(ViceroyPeer _entrancePoint)

Sets the entrance point of the net

Parameters:

_entrancePoint - The entrance point

register

public Address register(AuthorizedViceroyPeer peer)

registers a new ViceroyPeer in the system. The return value of this method should be kept at the registerred peer, for messages which need a return address

Specified by:

register in interface ViceroyPeerManager

Parameters:

peer - the peer to register

Returns:

an address that should be kept in case the registerred peer needs am answer for a certain message.

addListener

public void addListener(Listener listener,
                        AuthorizedViceroyPeer bounded)

adds a new listener to the system. Several local peers can listen on the same message with different listeners. The listener is able to distinguish between the messages

Specified by:

addListener in interface ViceroyPeerManager

Parameters:

listener - the listener to add

bounded - the peer that the incoming messages specify as destination

discover

public void discover(ViceroyPeer me)

finds the successor of me in the Viceroy network. This step is called 'discovery'. The successor is the ViceroyPeer who is responsible to my HashValue before my takeover

Specified by:

discover in interface ViceroyPeerManager

Parameters:

me - The peer who wishes to find its successor - to initiate the discovery process.

Since:

version 1.1

send

public void send(ViceroyPeer destination,
                 Message message)

send a message

Specified by:

send in interface ViceroyPeerManager

Parameters:

destination - the destination of the message

message - the message to be sent

leave

public void leave(AuthorizedViceroyPeer peer)

removes the given peer from the network. All its listeners will be removed, and no messages will reach it

Specified by:

leave in interface ViceroyPeerManager

Parameters:

peer - the peer that leaves