/* * Encog(tm) Core v2.5 - Java Version * http://www.heatonresearch.com/encog/ * http://code.google.com/p/encog-java/ * Copyright 2008-2010 Heaton Research, Inc. * * 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. * * For more information on Heaton Research copyrights, licenses * and trademarks visit: * http://www.heatonresearch.com/copyright */ package org.encog.engine.util; /** * A stopwatch, meant to emulate the C# Stopwatch class. */ public class Stopwatch { /** * Is the stopwatch stopped. */ private boolean stopped; /** * What is the starting time. */ private long startTime; /** * What is the stopped time. */ private long stopTime; /** * Construct a stopwatch. */ public Stopwatch() { reset(); this.stopped = false; } /** * @return Elapsed time in milli's. */ public long getElapsedMilliseconds() { return getElapsedTicks() / 1000; } /** * @return Elapsed time in ticks. */ public long getElapsedTicks() { if (!this.stopped) { this.stopTime = System.nanoTime(); } return (this.stopTime - this.startTime) / 1000; } /** * Reset the stop watch. */ public void reset() { this.startTime = System.nanoTime(); this.stopTime = System.nanoTime(); this.stopped = false; } /** * Start the stop watch. */ public void start() { this.startTime = System.nanoTime(); this.stopped = false; } /** * Stop the stopwatch. */ public void stop() { this.stopTime = System.nanoTime(); this.stopped = true; } }