org.vrspace.server
Class ProxyDispatcher

java.lang.Object
  java.util.Observable
      org.vrspace.server.Dispatcher
          org.vrspace.server.ProxyDispatcher

public class ProxyDispatcher

extends Dispatcher

This dispatcher only forwards events to/from client/other host.
But it should maintain a scene for all foreign objects, in order to reduce network trafic and speed up event distribution, also keep local-remote user mappings etc.

Nested Class Summary

class

ProxyDispatcher.Proxy

Nested classes inherited from class org.vrspace.server.Dispatcher

Dispatcher.DaemonLoader

Field Summary

boolean	autocommit
protected static java.util.Hashtable	connections
boolean	remove

Fields inherited from class org.vrspace.server.Dispatcher

clients, clientsSync, daemonSessions, initialized, receivedBytes, receivedChars, receivedRequests, sentBytes, sentChars, sentRequests, server, space, startTime

Constructor Summary

ProxyDispatcher(Client gate, Client client)

ProxyDispatcher(java.lang.String host, int port, Client client)

Method Summary

protected void	forward(Request r) Forward Request to the Client
void	login(Client c) start
Client	login(Session session, java.lang.String login, java.lang.String password, boolean daemon) This should not be called
protected void	logout(Client c, Session s) Logout Client c from remote host, session is not used
void	request(Request r) Process request from the client.
protected void	shutdown() Called from server upon shutdown

Methods inherited from class org.vrspace.server.Dispatcher

addClient, addTransformToScene, buildDefaultDatabase, get, getAll, getByName, getByName, getClientsOnline, getDB, getRange, getRange, getServer, getTransform, init, logout, put, putTransform, remove, remove, removeClient, removeTransform, removeTransformFromScene, requestSceneUpdates, updateScene

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Field Detail

connections

protected static java.util.Hashtable connections

remove

public boolean remove

autocommit

public boolean autocommit

Constructor Detail

ProxyDispatcher

public ProxyDispatcher(Client gate,
                       Client client)
                throws java.lang.Exception

ProxyDispatcher

public ProxyDispatcher(java.lang.String host,
                       int port,
                       Client client)
                throws java.lang.Exception

Method Detail

login

public void login(Client c)
           throws ConnectionException

start

Throws:

ConnectionException

forward

protected void forward(Request r)

Forward Request to the Client

request

public void request(Request r)
             throws RequestException

Process request from the client. This forwards request to remote host, changes local client ID to remote ID if necessary

Overrides:

request in class Dispatcher

Throws:

RequestException

login

public Client login(Session session,
                    java.lang.String login,
                    java.lang.String password,
                    boolean daemon)
             throws java.lang.Exception

This should not be called

Overrides:

login in class Dispatcher

Throws:

java.lang.Exception

logout

protected void logout(Client c,
                      Session s)

Logout Client c from remote host, session is not used

Overrides:

logout in class Dispatcher

shutdown

protected void shutdown()

Called from server upon shutdown

Overrides:

shutdown in class Dispatcher