com.clustercontrol.accesscontrol.util.SessionTimer.java Source code

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Here is the source code for com.clustercontrol.accesscontrol.util.SessionTimer.java

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/**********************************************************************
 * Copyright (C) 2006 NTT DATA Corporation
 * 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, version 2.
 * 
 * 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.
 *********************************************************************/

package com.clustercontrol.accesscontrol.util;

import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.rap.rwt.internal.service.ContextProvider;
import org.eclipse.rap.rwt.internal.service.ServiceContext;

/**
 * Session Timer
 * 
 * @version 5.0.0
 * @since 5.0.0
 */
public class SessionTimer {
    // 
    private static Log m_log = LogFactory.getLog(SessionTimer.class);

    /** ID * */
    private Timer m_timer = null;

    /**
     * ??
     * 
     * @param inverval ()
     */
    public void start(final int interval) {
        // ???????
        if (m_timer == null && interval > 0) {
            // ?
            m_timer = new Timer(true);
            final ServiceContext context = ContextProvider.getContext();

            m_log.debug("SessionTimer start");

            // 
            m_timer.schedule(new TimerTask() {
                @Override
                public void run() {
                    m_log.trace("SessionTimer start at Date : " + (new Date()).toString());
                    ContextProvider.releaseContextHolder();
                    ContextProvider.setContext(context);
                    ClientSession.doCheck();
                }
            }, 1000, (long) interval * 60 * 1000);
        }
    }

    public void cancel() {
        if (m_timer != null) {
            // 
            m_timer.cancel();

            // 
            m_timer = null;
        }
    }
}