/*
* Timer.java
*
* Copyright (c) 2002-2015 Alexei Drummond, Andrew Rambaut and Marc Suchard
*
* This file is part of BEAST.
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership and licensing.
*
* BEAST 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 2
* of the License, or (at your option) any later version.
*
* BEAST 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 BEAST; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
package dr.util;
public class Timer {
private long start = 0, stop = 0;
public void start() {
start = System.currentTimeMillis();
}
public void stop() {
stop = System.currentTimeMillis();
}
public void update() {
stop = System.currentTimeMillis();
}
/**
* @return the estimated milliseconds left to complete a task.
*/
public long calibrate(double fraction) {
long timeTaken = System.currentTimeMillis() - start;
return Math.round(((double)timeTaken / fraction) * (1.0 - fraction));
}
public double toSeconds() {
update();
return toSeconds(stop - start);
}
public static double toSeconds(long millis) {
return millis / 1000.0;
}
public static double toMinutes(long millis) {
return toSeconds(millis) / 60.0;
}
public static double toHours(long millis) {
return toMinutes(millis) / 60.0;
}
public static double toDays(long millis) {
return toHours(millis) / 24.0;
}
public String toString() {
update();
return toString(stop - start);
}
public static String toString(long millis) {
if (toDays(millis) > 1.0) return toDays(millis) + " days";
if (toHours(millis) > 1.0) return toHours(millis) + " hours";
if (toMinutes(millis) > 1.0) return toMinutes(millis) + " minutes";
return toSeconds(millis) + " seconds";
}
}