/*
* Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package javax.management.timer;
import java.util.Date;
import java.util.logging.Level;
import static com.sun.jmx.defaults.JmxProperties.TIMER_LOGGER;
/**
* This class provides a simple implementation of an alarm clock MBean.
* The aim of this MBean is to set up an alarm which wakes up the timer every timeout (fixed-delay)
* or at the specified date (fixed-rate).
*/
class TimerAlarmClock extends java.util.TimerTask {
Timer listener = null;
long timeout = 10000;
Date next = null;
/*
* ------------------------------------------
* CONSTRUCTORS
* ------------------------------------------
*/
public TimerAlarmClock(Timer listener, long timeout) {
this.listener = listener;
this.timeout = Math.max(0L, timeout);
}
public TimerAlarmClock(Timer listener, Date next) {
this.listener = listener;
this.next = next;
}
/*
* ------------------------------------------
* PUBLIC METHODS
* ------------------------------------------
*/
/**
* This method is called by the timer when it is started.
*/
public void run() {
try {
//this.sleep(timeout);
TimerAlarmClockNotification notif = new TimerAlarmClockNotification(this);
listener.notifyAlarmClock(notif);
} catch (Exception e) {
TIMER_LOGGER.logp(Level.FINEST, Timer.class.getName(), "run",
"Got unexpected exception when sending a notification", e);
}
}
}