| /** |
| * 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. |
| */ |
| package org.apache.hadoop.io.file.tfile; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.util.Time; |
| |
| /** |
| * this class is a time class to |
| * measure to measure the time |
| * taken for some event. |
| */ |
| public class Timer { |
| long startTimeEpoch; |
| long finishTimeEpoch; |
| |
| public void startTime() throws IOException { |
| startTimeEpoch = Time.now(); |
| } |
| |
| public void stopTime() throws IOException { |
| finishTimeEpoch = Time.now(); |
| } |
| |
| public long getIntervalMillis() throws IOException { |
| return finishTimeEpoch - startTimeEpoch; |
| } |
| |
| public void printlnWithTimestamp(String message) throws IOException { |
| System.out.println(formatCurrentTime() + " " + message); |
| } |
| |
| public String formatTime(long millis) { |
| return Time.formatTime(millis); |
| } |
| |
| public String getIntervalString() throws IOException { |
| long time = getIntervalMillis(); |
| return formatTime(time); |
| } |
| |
| public String formatCurrentTime() { |
| return formatTime(Time.now()); |
| } |
| } |
| |