/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.env.deploy;
import com.caucho.util.Alarm;
import com.caucho.util.AlarmListener;
import com.caucho.util.WeakAlarm;
/**
* DeployController controls the lifecycle of the DeployInstance.
*/
class DeployControllerAlarm<C extends DeployController<?>>
implements AlarmListener
{
private C _controller;
private Alarm _alarm = new WeakAlarm(this);
private long _checkInterval;
DeployControllerAlarm(C controller, long checkInterval)
{
_controller = controller;
_checkInterval = checkInterval;
if (checkInterval > 0)
_alarm.queue(checkInterval);
}
/**
* Handles the redeploy check alarm.
*/
@Override
public final void handleAlarm(Alarm alarm)
{
try {
_controller.alarm();
} finally {
if (! _controller.getState().isDestroyed())
alarm.queue(_checkInterval);
}
}
public final void close()
{
_alarm.dequeue();
}
/**
* Returns the entry's debug name.
*/
@Override
public String toString()
{
return getClass().getSimpleName() + "[" + _controller + "]";
}
}