@Override
	public void eventLoopIdle(Display display) {

		if (SessionManager.getSessionManager().isActivityTimeOut()) {
			AccessControl.getAccessControl().timeoutScreen();
		}

		super.eventLoopIdle(display);
	}

	Listener uiListener = new Listener() {
		public void handleEvent (Event event) {
			sessionManager.resetActivityTimeOut();
		}
	};

	Display display = PlatformUI.createDisplay();
	display.addFilter(SWT.KeyUp, uiListener);
	display.addFilter(SWT.MouseUp, uiListener);
	display.addFilter(SWT.Activate, uiListener);

	private long timeStampLastMs;
	private long timeOutTimeMs = CMD_TIME_OUT_MS;

	public synchronized boolean isActivityTimeOut() {

		boolean timeout = false;
		if (accessControl) {
		
			long now = System.currentTimeMillis();
	
			if (timeOutTimeMs < (now - timeStampLastMs)) {
				timeout = true;
			}
		}
		
		return timeout;
	}
	public synchronized void resetActivityTimeOut() {
		timeStampLastMs =  System.currentTimeMillis();
	}