org.rotarysource.signals.shutdown.ShutdownEventListener.java Source code

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Here is the source code for org.rotarysource.signals.shutdown.ShutdownEventListener.java

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/*
Copyright (c) 2013 J. L. Canales Gasco
     
This program 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.
     
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA}]
*/

package org.rotarysource.signals.shutdown;

import java.util.List;

import org.rotarysource.signals.SignalCapable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationListener;

public class ShutdownEventListener implements ApplicationListener<ShutdownEvent> {

    private static Logger log = LoggerFactory.getLogger(ShutdownEventListener.class);

    /**
     * List of SignalCapable Objects to be executed shutdown
     */
    private List<SignalCapable> componentList;

    private boolean isShudownExecuted;

    public ShutdownEventListener(List<SignalCapable> aiComponentList) {
        this.componentList = aiComponentList;
        isShudownExecuted = false;
    }

    /**
     * This method implements the systems shutdown procedure to be executed
     * before the Application Context will be executed.
     * 
     * @author J.L. Canales
     */
    @Override
    public void onApplicationEvent(ShutdownEvent event) {
        // TODO Auto-generated method stub
        log.info("SHUTDOWN signal received. Requester Message: {}", event.getMessage());
        log.info("EVENT DRIVEN CONTROL SYSTEM: Starting Shutdown server process");

        for (int i = 0; i < componentList.size(); i++) {
            componentList.get(i).shutdown();
        }

        isShudownExecuted = true;

    }

    public boolean isShudownExecuted() {
        return isShudownExecuted;
    }

}