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/**
 * COOS - Connected Objects Operating System (www.connectedobjects.org).
 *
 * Copyright (C) 2009 Telenor ASA and Tellu AS. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see .
 *
 * You may also contact one of the following for additional information:
 * Telenor ASA, Snaroyveien 30, N-1331 Fornebu, Norway (www.telenor.no)
 * Tellu AS, Hagalokkveien 13, N-1383 Asker, Norway (www.tellu.no)
 */
package org.coos.messaging.processor;

import java.util.Hashtable;

import org.coos.messaging.Message;
import org.coos.messaging.Processor;
import org.coos.messaging.ProcessorException;
import org.coos.messaging.impl.DefaultProcessor;

/**
 * @author Knut Eilif Husa, Tellu AS A processor that delays messages
 */
public class Delayer extends DefaultProcessor implements Processor {

	public static final String PROPERTY_DELAY = "delay";
	private long delay = 0;

	public void processMessage(Message msg) throws ProcessorException {
		if (delay != 0) {
			try {
				Thread.sleep(delay);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
	}

	public void setProperties(Hashtable properties) {
		super.setProperties(properties);
		String delayStr = (String) properties.get(PROPERTY_DELAY);
		if (delayStr != null) {
			delay = Long.parseLong(delayStr);
		}
	}
}