main
Class Server

java.lang.Object
  main.Server

public class Server
extends java.lang.Object

Chat server runner.

Field Summary

java.util.Hashtable<java.lang.Integer,Conversation>	convTable
java.util.Hashtable<java.lang.String,User>	userTable

Constructor Summary

Server(int port)
Creates a new instance of a server.

Method Summary

void	freeID(int ID) Frees an ID that was previously reserved for a conversation, that way they can be reused without restarting the server.
static void	main(java.lang.String[] args) Start a chat server.
int	newID() Generates a new, random ID for a conversation.
void	serve() Waits for clients to connects.

Methods inherited from class java.lang.Object

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

Field Detail

userTable

public final java.util.Hashtable<java.lang.String,User> userTable

convTable

public final java.util.Hashtable<java.lang.Integer,Conversation> convTable

Constructor Detail

Server

public Server(int port)
       throws java.io.IOException

Creates a new instance of a server.

Parameters:

port - Port to listen to clients on

Throws:

java.io.IOException - if a Server Socket cannot be made on the port

Method Detail

serve

public void serve()

Waits for clients to connects. Upon connecting, a new thread is generated. If there is an error, it ignores it and waits for the next client one to connect.

newID

public int newID()

Generates a new, random ID for a conversation. Checks to ensure that the ID has not been taken. It is randomly generated as a 32 bit signed int.

Returns:

random conversation ID as an integer

freeID

public void freeID(int ID)

Frees an ID that was previously reserved for a conversation, that way they can be reused without restarting the server.

Parameters:

ID - integer ID to free from the list of currently used ID's

main

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

Start a chat server.