inputOutputHandler
Class ClientConnectionHandler

java.lang.Object
  java.lang.Thread
      inputOutputHandler.ClientConnectionHandler

All Implemented Interfaces:

java.lang.Runnable

final class ClientConnectionHandler
extends java.lang.Thread

Handles communication with Clients. Accepts connections, receives Requests and sends Replyies. Requests are put in the InputOutputHandlerController's requestInputQueue (see InputOutputHandlerController.addUnprocessedRequest()). Replyies are taken from the InputOutputHandlerController's replyOutputQueue (see InputOutputHandlerController.getProcessedReply()).

Adds/removes user to/from UserDatabase.

Uses non-blocking I/O.

Author:

Karl-Peter Fuchs

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

protected

ClientConnectionHandler(InputOutputHandlerController inputOutputHandler, UserDatabaseController userDatabase, OutputStrategyController outputStrategy) Constructs a new ClientConnectionHandler which accepts connections, receives Requests and sends Replyies.

Method Summary

protected void	acceptConnections() Makes this ClientConnectionHandler wait for connections, Requests and Replyies.
void	run() Handles read, write and accept events (non-blocking I/O).

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

ClientConnectionHandler

protected ClientConnectionHandler(InputOutputHandlerController inputOutputHandler,
                                  UserDatabaseController userDatabase,
                                  OutputStrategyController outputStrategy)

Constructs a new ClientConnectionHandler which accepts connections, receives Requests and sends Replyies. Requests are put in the InputOutputHandlerController's requestInputQueue (see InputOutputHandlerController.addUnprocessedRequest()). Replyies are taken from the InputOutputHandlerController's replyOutputQueue (see InputOutputHandlerController.getProcessedReply()).

Adds/removes user to/from UserDatabase.

Uses non-blocking I/O.

Parameters:

inputOutputHandler - Reference on InputOutputHandlerController (Used to add messages).

userDatabase - Reference on component UserDatabase (Used to add/remove User)s.

outputStrategy - Reference on component OutputStrategy (Used to send InternalMessages).

Method Detail

acceptConnections

protected void acceptConnections()

Makes this ClientConnectionHandler wait for connections, Requests and Replyies.

run

public void run()

Handles read, write and accept events (non-blocking I/O).

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread