chatapp
Class ChatClient

java.lang.Object
  chatapp.ChatClient

 class ChatClient
extends java.lang.Object

The chat client. Only trivial source code modifications are required to switch between use of MCast and TOMCast.

A ChatClient simulates a chat user. It generates lines to send, and sends them. It receives lines, and prints them. (It also writes them to a log file.) It doesn't terminate until it has sent all its lines and it is sure that it has received all msgs all other mcast group members will ever send.

Version:

$Id: ChatClient.java,v 1.2 2009/01/15 02:54:00 zahorjan Exp $

Nested Class Summary

(package private) class

ChatClient.ReceiveHelper Like most everything else, the chat client is multithreaded.

Field Summary

private Logger	logger An object encapsulating creation of a log file.
private TOMCastPacket	receivePkt The packet used by the receive thread (to hold incoming data).
private TOMCastPacket	sendPkt The packet used by the send thread (to hold outgoing data).
private TOMCastSocket	sock The communication socket.

Constructor Summary

ChatClient(java.lang.String userName, java.lang.String lobbyHost, int lobbyPort, int sendLimit, int sendDelay)
A lot of parameters are required.

Method Summary

static void	main(java.lang.String[] args)
static void	usage()

Methods inherited from class java.lang.Object

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

Field Detail

logger

private Logger logger

An object encapsulating creation of a log file. The log file has the name of the chat 'user'.log, e.g., alice.log. The log file is used by scripts (go.sh, in particular) to check the results for correctness.

sock

private TOMCastSocket sock

The communication socket.

receivePkt

private TOMCastPacket receivePkt

The packet used by the receive thread (to hold incoming data).

sendPkt

private TOMCastPacket sendPkt

The packet used by the send thread (to hold outgoing data).

Constructor Detail

ChatClient

public ChatClient(java.lang.String userName,
                  java.lang.String lobbyHost,
                  int lobbyPort,
                  int sendLimit,
                  int sendDelay)

A lot of parameters are required. It's intended that it be launched from a script...

Parameters:

userName - The string name to be used in tagging chat lines (e.g., alice)

lobbyHost - The hostname or IP address where the lobby is running

sendLimit - The number of simulated chat input lines to send before terminating

sendDelay - The number of milliseconds to wait between sending successive lines.

Method Detail

usage

public static void usage()

main

public static void main(java.lang.String[] args)