/*
 *  Copyright (C) 2010-2013 JPEXS
 * 
 *  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 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 General Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.jpexs.helpers;

import java.util.Date;

/**
 *
 * @author JPEXS
 */
public class Stopwatch {

    private long startTime, elapsedTime;
    private boolean running;
    public Date startDate, endDate;
    
    public static Stopwatch startNew() {
        Stopwatch sw = new Stopwatch();
        sw.start();
        return sw;
    }
    
    public void start() {
        running = true;
        startDate = new Date();
        startTime = System.nanoTime();
    }
    
    public void stop() {
        elapsedTime = System.nanoTime() - startTime;
        endDate = new Date();
        running = false;
    }
    
    public long getElapsedNanoseconds() {
        if (running) {
            return System.nanoTime() - startTime;
        }
        return elapsedTime;
    }

    public long getElapsedMilliseconds() {
        return getElapsedNanoseconds() / 1000000;
    }
}