unifier
Class BasicPerspectiveUnifier

java.lang.Object
  |
  +--connect.socket.SocketComponentTemplate
        |
        +--unifier.BasicPerspectiveUnifier

All Implemented Interfaces:

Component, PerspectiveUnifier

Direct Known Subclasses:

ModeratePerspectiveUnifier

public class BasicPerspectiveUnifier

extends SocketComponentTemplate

implements PerspectiveUnifier

This class is meant to be a very basic implementation of Perspective Unifier. This PU is extremely simple (to a fault!). It adds all the objects from the WorldImage to the list of object currently known by the WorldState.

Version:

$Revision: 1.14 $

Author:

Dave Jurgens

Field Summary

static int	PORT
private connect.ComponentEmissary	representative
private static long	serialVersionUID
private boolean	serverConnected
private static boolean	SHOW_ACCEPTS

Fields inherited from class connect.socket.SocketComponentTemplate

portNumber

Constructor Summary

BasicPerspectiveUnifier()

Method Summary

protected boolean	accept(Class requestingType) Returns false.
protected boolean	allowMethod(util.MethodRequest request) Accepts the method "unify" from the Server and returns false for all others.
protected connect.ComponentEmissary	getComponentEmissary() Returns the ComponentEmissary that represents this object.
protected int	getMaxPoints() Returns 1 so that a single RelayPoint may be created.
static void	main(String[] args)
protected void	processAcceptedConnection(Class remoteComponentType, connect.ChannelBundle acceptedConnection) Processes a connection to the Server.
protected void	processRequestingConnection(connect.ComponentEmissary remoteComponent, connect.ChannelBundle incomingConnection) No components are allowed to connect to us at this point in time.
world.WorldState	unify(world.WorldState current, world.WorldImage deltaWorld) Returns a new WorldState object that reflects the changes depicted in the WorldImage.

Methods inherited from class connect.socket.SocketComponentTemplate

connect, getConnection, processRelayPoint, spawnRelayPoint

Methods inherited from class java.lang.Object

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

Methods inherited from interface connect.Component

connect, getConnection

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

PORT

public static final int PORT

See Also:

Constant Field Values

SHOW_ACCEPTS

private static final boolean SHOW_ACCEPTS

See Also:

Constant Field Values

representative

private final connect.ComponentEmissary representative

serverConnected

private boolean serverConnected

Constructor Detail

BasicPerspectiveUnifier

public BasicPerspectiveUnifier()

Method Detail

unify

public world.WorldState unify(world.WorldState current,
                              world.WorldImage deltaWorld)

Returns a new WorldState object that reflects the changes depicted in the WorldImage.

Specified by:

unify in interface PerspectiveUnifier

Parameters:

current - the current list of known objects

deltaWorld - processed information from a ObjectLocater

Returns:

the new world state with updated information

processRequestingConnection

protected void processRequestingConnection(connect.ComponentEmissary remoteComponent,
                                           connect.ChannelBundle incomingConnection)

No components are allowed to connect to us at this point in time.

Specified by:

processRequestingConnection in class SocketComponentTemplate

processAcceptedConnection

protected void processAcceptedConnection(Class remoteComponentType,
                                         connect.ChannelBundle acceptedConnection)

Processes a connection to the Server. This gets called when the connect method is called the the remote component accepts our connection. Specifically, we should have requested to connect to server right away and so we when are connected, we receive this connection to the server.

Specified by:

processAcceptedConnection in class SocketComponentTemplate

accept

protected boolean accept(Class requestingType)

Returns false. This component does not accept connections.

Specified by:

accept in class SocketComponentTemplate

allowMethod

protected boolean allowMethod(util.MethodRequest request)

Accepts the method "unify" from the Server and returns false for all others.

Specified by:

allowMethod in class SocketComponentTemplate

getComponentEmissary

protected connect.ComponentEmissary getComponentEmissary()

Description copied from class: SocketComponentTemplate

Returns the ComponentEmissary that represents this object.

Overrides:

getComponentEmissary in class SocketComponentTemplate

getMaxPoints

protected int getMaxPoints()

Returns 1 so that a single RelayPoint may be created.

Overrides:

getMaxPoints in class SocketComponentTemplate

See Also:

SocketComponentTemplate.spawnRelayPoint(int)

main

public static void main(String[] args)