HooChat
Class MessageServerImpl

java.lang.Object
  |
  +--org.omg.PortableServer.Servant
        |
        +--HooChat.IM_MODULE.MessageServerPOA
              |
              +--HooChat.MessageServerImpl

All Implemented Interfaces:

InvokeHandler, MessageServerOperations

public class MessageServerImpl

extends MessageServerPOA

This is the class where server methods are located

Constructor Summary

MessageServerImpl(int currentServerNum)

Method Summary

void	clientCheckIn(String username) The client calls this method to let the server know that it is still alive.
String	getClientList() The client calls this to get the list of clients that are currently signed on as a comma delimited string Version 2: Chuck has added global state via hydra services to get the most up-to-date list down
String	getMessage(String username) Gets the most current "message" which is a vector containing a username and message.
void	logOff(String username) The client uses this method to notify the server that it is logging out of the chat.
void	post(String username, String msg) The client uses this method to post a message to the chat room
boolean	register(String username, String password) The client is invoked by the client to log-in to the system, authenticate(and i use that term SO loosely) the identity of the client

Methods inherited from class HooChat.IM_MODULE.MessageServerPOA

_all_interfaces, _invoke, _this, _this

Methods inherited from class org.omg.PortableServer.Servant

_default_POA, _get_delegate, _get_interface_def, _is_a, _non_existent, _object_id, _orb, _poa, _set_delegate, _this_object, _this_object

Methods inherited from class java.lang.Object

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

Constructor Detail

MessageServerImpl

public MessageServerImpl(int currentServerNum)

Method Detail

clientCheckIn

public void clientCheckIn(String username)

The client calls this method to let the server know that it is still alive. Essentially, this means putting a true value in the clientsCheckedIn hashTable used to monitor client status Version 2: This is now a globally stored object via Hydra services!

Parameters:

username - the name of the user that wants to check in

Returns:

void

getClientList

public String getClientList()

The client calls this to get the list of clients that are currently signed on as a comma delimited string Version 2: Chuck has added global state via hydra services to get the most up-to-date list down

Returns:

String

logOff

public void logOff(String username)

The client uses this method to notify the server that it is logging out of the chat. This is the "clean" log-off mechanism and is not used when the client is simply killed Version 2: Chuck has added global state via hydraServices to make sure we keep the lists updated

Parameters:

username - the name of the user that wants to log-off

Returns:

void

getMessage

public String getMessage(String username)

Gets the most current "message" which is a vector containing a username and message. If there is no message it returns null;

Returns:

Vector

post

public void post(String username,
                 String msg)

The client uses this method to post a message to the chat room

Parameters:

username - the name of the user that is posting

msg - the message they are posting

Returns:

void

register

public boolean register(String username,
                        String password)

The client is invoked by the client to log-in to the system, authenticate(and i use that term SO loosely) the identity of the client

Parameters:

username - the name of the user logging in

password - the client password

Returns:

boolean this value is true if registration was successful