/*
 * 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 <http://www.gnu.org/licenses/>.
 */

package org.mycore.services.http;

import java.util.concurrent.TimeUnit;

import org.apache.http.conn.HttpClientConnectionManager;

/**
 * Monitors a {@link HttpClientConnectionManager} for expired or idle connections.
 * 
 * These connections will be closed every 5 seconds.
 * @author Thomas Scheffler (yagee)
 */
public class MCRIdleConnectionMonitorThread extends Thread {
    private final HttpClientConnectionManager connMgr;

    private volatile boolean shutdown;

    public MCRIdleConnectionMonitorThread(HttpClientConnectionManager connMgr) {
        super();
        this.connMgr = connMgr;
    }

    @Override
    public void run() {
        try {
            while (!shutdown) {
                synchronized (this) {
                    wait(5000);
                    // Close expired connections
                    connMgr.closeExpiredConnections();
                    // Close inactive connection
                    connMgr.closeIdleConnections(30, TimeUnit.SECONDS);
                }
            }
        } catch (InterruptedException ex) {
            // terminate
        }
    }

    public void shutdown() {
        shutdown = true;
        synchronized (this) {
            notifyAll();
        }
    }

}
