| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| /* |
| * Contributor(s): Thomas Ball |
| */ |
| |
| /** |
| * A simple class for calculating and reporting elapsed system time. |
| * Each timer has a start time and may have an end time. If an |
| * elapsed time value is requested of a timer which doesn't have its |
| * stop time set, the current system time is used. |
| * |
| * @author Tom Ball |
| */ |
| public class ElapsedTimer { |
| // System times in milliseconds; see System.currentTimeMillis(); |
| private long startTime; |
| private long stopTime; |
| |
| /** |
| * Create a new timer. |
| */ |
| public ElapsedTimer() { |
| reset(); |
| } |
| |
| /** |
| * Stop the current timer; that is, set its stopTime. |
| */ |
| public void stop() { |
| stopTime = System.currentTimeMillis(); |
| } |
| |
| /** |
| * Reset the starting time to the current system time. |
| */ |
| public final void reset() { |
| startTime = System.currentTimeMillis(); |
| } |
| |
| public long getElapsedMilliseconds() { |
| long st = (stopTime == 0) ? System.currentTimeMillis() : stopTime; |
| return st - startTime; |
| } |
| |
| public int getElapsedSeconds() { |
| return (int)(getElapsedMilliseconds() / 1000L); |
| } |
| |
| public String toString() { |
| long ms = getElapsedMilliseconds(); |
| int sec = (int)(ms / 1000L); |
| int frac = (int)(ms % 1000L); |
| StringBuffer sb = new StringBuffer(); |
| sb.append(ms / 1000L); |
| sb.append('.'); |
| sb.append(ms % 1000L); |
| sb.append(" seconds"); |
| return sb.toString(); |
| } |
| } |