submission.Demo
Class UDPEchoServer

java.lang.Object
  java.lang.Thread
      simnet.Application
          submission.Demo.EchoServer
              submission.Demo.UDPEchoServer

All Implemented Interfaces:

Pluggable, PlugoutListener, java.lang.Runnable, SimnetWindowListener

public class UDPEchoServer

extends EchoServer

implements Pluggable

An example of an EchoServer implemented with UDP.

Nested Class Summary

private class

UDPEchoServer.UDPEchoServerThread The thread that does all of the work for an open port.

Field Summary

protected java.util.Hashtable

sessions

Fields inherited from class submission.Demo.EchoServer

prefix

Fields inherited from class simnet.Application

appid, appstart, node, NODE_ID, pid, random, sim

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

UDPEchoServer()

Method Summary

void	close(int port) Close a server on a port
void	customInit() This is where an application can do any application-specific initializeation it requires.
void	open(int port) Open server on a new port
boolean	prePlugout(java.lang.Object replacement) To cleanup, just clear out the sessions table (the worker threads clean themselves up).
void	status() Print a status report

Methods inherited from class submission.Demo.EchoServer

close, open, setPrefix

Methods inherited from class simnet.Application

closeWindow, finalize, getTitleString, initialize, plugoutNotification, printout, printout, processWindowCommand, rawOut, run, window

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

sessions

protected java.util.Hashtable sessions

Constructor Detail

UDPEchoServer

public UDPEchoServer()

Method Detail

customInit

public void customInit()

Description copied from class: Application

This is where an application can do any application-specific initializeation it requires.

Overrides:

customInit in class Application

open

public void open(int port)

Open server on a new port

Specified by:

open in class EchoServer

close

public void close(int port)

Close a server on a port

Specified by:

close in class EchoServer

status

public void status()

Print a status report

Specified by:

status in class EchoServer

prePlugout

public boolean prePlugout(java.lang.Object replacement)

To cleanup, just clear out the sessions table (the worker threads clean themselves up).

Specified by:

prePlugout in interface Pluggable

Returns:

if this object can now be removed (was the operation sucessful)