/*******************************************************************************
 * ============LICENSE_START==================================================
 * * org.onap.dmaap
 * * ===========================================================================
 * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
 * * ===========================================================================
 * * Licensed under the Apache License, Version 2.0 (the "License");
 * * you may not use this file except in compliance with the License.
 * * You may obtain a copy of the License at
 * * 
 *  *      http://www.apache.org/licenses/LICENSE-2.0
 * * 
 *  * Unless required by applicable law or agreed to in writing, software
 * * distributed under the License is distributed on an "AS IS" BASIS,
 * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * * See the License for the specific language governing permissions and
 * * limitations under the License.
 * * ============LICENSE_END====================================================
 * *
 * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
 * *
 ******************************************************************************/


package org.onap.dmaap.datarouter.provisioning.utils;

import java.io.File;
import java.util.Properties;
import java.util.TimerTask;

/**
 * This class provides a {@link TimerTask} that purges old logfiles
 * (older than the number of days specified by the org.onap.dmaap.datarouter.provserver.logretention property).
 * @author Robert Eby
 * @version $Id: PurgeLogDirTask.java,v 1.2 2013/07/05 13:48:05 eby Exp $
 */
public class PurgeLogDirTask extends TimerTask {
	private static final long ONEDAY = 86400000L;

	private final String logdir;
	private final long interval;

	public PurgeLogDirTask() {
		Properties p = (new DB()).getProperties();
		logdir   = p.getProperty("org.onap.dmaap.datarouter.provserver.accesslog.dir");
		String s = p.getProperty("org.onap.dmaap.datarouter.provserver.logretention", "30");
		long n = 30;
		try {
			n = Long.parseLong(s);
		} catch (NumberFormatException e) {
			// ignore
		}
		interval = n * ONEDAY;
	}
	@Override
	public void run() {
		try {
			File dir = new File(logdir);
			if (dir.exists()) {
				long exptime = System.currentTimeMillis() - interval;
				for (File logfile : dir.listFiles()) {
					if (logfile.lastModified() < exptime)
						logfile.delete();
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}