| /** |
| * 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.yarn.util; |
| |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| |
| public class Times { |
| static final ThreadLocal<SimpleDateFormat> dateFormat = |
| new ThreadLocal<SimpleDateFormat>() { |
| @Override protected SimpleDateFormat initialValue() { |
| return new SimpleDateFormat("d-MMM-yyyy HH:mm:ss"); |
| } |
| }; |
| |
| public static long elapsed(long started, long finished) { |
| if (finished > 0) { |
| return finished - started; |
| } |
| return started > 0 ? System.currentTimeMillis() - started : 0; |
| } |
| |
| public static String format(long ts) { |
| return ts > 0 ? String.valueOf(dateFormat.get().format(new Date(ts))) |
| : "N/A"; |
| } |
| } |