net.mtu.eggplant.util.network

Class TCPServer

java.lang.Object

net.mtu.eggplant.util.network.TCPServer

All Implemented Interfaces:

Cloneable, Runnable

public class TCPServer
extends Object
implements Runnable, Cloneable

Simple TCP echo server.

Version:

$Revision$

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_PORT

Constructor Summary

Constructors

Constructor and Description
TCPServer() default constructor.
TCPServer(int port) Create a ServerSocket to listen for connections on If port < 0 or port > 65535 port defaults to DEFAULT_PORT.

Method Summary

Modifier and Type	Method and Description
protected Socket	getSocket() get the actual socket
void	initializeConnection() Actually make the connection and wait for data.
static void	main(String[] args)
void	print(String message) print something to the socket.
protected boolean	processData(String line) do something with a line of input.
String	readLine() read a line from the socket
void	run() The body of the server thread.
protected void	setSocket(Socket s) set the actual socket.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_PORT

public static final int DEFAULT_PORT

See Also:

Constant Field Values

Constructor Detail

TCPServer

public TCPServer()

default constructor. Uses port 6789 as the port to listen on.

TCPServer

public TCPServer(int port)

Create a ServerSocket to listen for connections on If port < 0 or port > 65535 port defaults to DEFAULT_PORT.

Parameters:

port - the port to listen on

Method Detail

run

public void run()

The body of the server thread. Loop forever, listening for and accepting connections from clients. For each connection, create a clone that executes initializeConnection().

Specified by:

run in interface Runnable

initializeConnection

public void initializeConnection()

Actually make the connection and wait for data. Just echo data back on the socket.

processData

protected boolean processData(String line)

do something with a line of input. Just print the line back out on the socket. Override this to do more with the data.

Parameters:

line - the input

Returns:

true if we should quit, false otherwise

print

public void print(String message)

print something to the socket.

Parameters:

message - the message, if not connected nothing happens

readLine

public String readLine()
                throws IOException

read a line from the socket

Returns:

the line, null if not connected

Throws:

IOException

getSocket

protected Socket getSocket()

get the actual socket

Returns:

the socket, null if not connected

setSocket

protected void setSocket(Socket s)

set the actual socket.

Parameters:

s - the socket

main

public static void main(String[] args)