org.mycore.common.events.MCRShutdownThread Maven / Gradle / Ivy
/*
* This file is part of *** M y C o R e ***
* See http://www.mycore.de/ for details.
*
* MyCoRe 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 3 of the License, or
* (at your option) any later version.
*
* MyCoRe 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with MyCoRe. If not, see .
*/
package org.mycore.common.events;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
/**
* is a shutdown hook for the current Runtime
.
*
* This class registers itself as a shutdown hook to the JVM.
*
* There is no way to instanciate this class somehow. This will be done by MCRShutdownHandler.
*
* @author Thomas Scheffler (yagee)
* @see java.lang.Runtime#addShutdownHook(java.lang.Thread)
* @see org.mycore.common.events.MCRShutdownHandler
* @since 1.3
*/
public class MCRShutdownThread extends Thread {
private static final Logger LOGGER = LogManager.getLogger(MCRShutdownThread.class);
private static final MCRShutdownThread SINGLETON = new MCRShutdownThread();
private MCRShutdownThread() {
setName("MCR-exit");
LOGGER.info("adding MyCoRe ShutdownHook");
Runtime.getRuntime().addShutdownHook(this);
}
static MCRShutdownThread getInstance() {
return SINGLETON;
}
@Override
public void run() {
MCRShutdownHandler sh = MCRShutdownHandler.getInstance();
if (sh != null) {
sh.shutDown();
}
}
}