com.notuvy.singleapp
Class SingleUserEnforcer

java.lang.Object
  com.notuvy.singleapp.multiuser.GenericEnforcer
      com.notuvy.singleapp.SingleUserEnforcer

All Implemented Interfaces:

Enforcer, Runnable

public abstract class SingleUserEnforcer
extends GenericEnforcer
implements Runnable, Enforcer

A utility that enforces the invocation of a system-wide singleton application instance.

Author:

murali

Field Summary

protected static org.apache.log4j.Logger

LOG

Fields inherited from class com.notuvy.singleapp.multiuser.GenericEnforcer

fAllowSystemExit

Constructor Summary

protected

SingleUserEnforcer(int pPort, Runnable pRunnable)

Method Summary

void	attempt()
int	getPort()
protected abstract void	handleConnection(Socket pSocket)
protected abstract void	handlePortConflict()
void	run()
void	shutdownServer()
protected void	takeControl()
protected void	wrest(Preemptable pPreemptable)

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final org.apache.log4j.Logger LOG

Constructor Detail

SingleUserEnforcer

protected SingleUserEnforcer(int pPort,
                             Runnable pRunnable)

Method Detail

getPort

public int getPort()

takeControl

protected void takeControl()

wrest

protected void wrest(Preemptable pPreemptable)

attempt

public void attempt()

Specified by:

attempt in interface Enforcer

run

public void run()

Specified by:

run in interface Runnable

handlePortConflict

protected abstract void handlePortConflict()

handleConnection

protected abstract void handleConnection(Socket pSocket)

shutdownServer

public void shutdownServer()

Specified by:

shutdownServer in interface Enforcer