001/** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 019package org.apache.hadoop.conf; 020 021import com.google.common.base.Optional; 022import org.apache.hadoop.classification.InterfaceAudience; 023import org.apache.hadoop.classification.InterfaceStability; 024import org.apache.hadoop.conf.ReconfigurationUtil.PropertyChange; 025 026import java.util.Map; 027 028@InterfaceAudience.Public 029@InterfaceStability.Stable 030public class ReconfigurationTaskStatus { 031 long startTime; 032 long endTime; 033 final Map<ReconfigurationUtil.PropertyChange, Optional<String>> status; 034 035 public ReconfigurationTaskStatus(long startTime, long endTime, 036 Map<ReconfigurationUtil.PropertyChange, Optional<String>> status) { 037 this.startTime = startTime; 038 this.endTime = endTime; 039 this.status = status; 040 } 041 042 /** 043 * Return true if 044 * - A reconfiguration task has finished or 045 * - an active reconfiguration task is running 046 */ 047 public boolean hasTask() { 048 return startTime > 0; 049 } 050 051 /** 052 * Return true if the latest reconfiguration task has finished and there is 053 * no another active task running. 054 */ 055 public boolean stopped() { 056 return endTime > 0; 057 } 058 059 public long getStartTime() { 060 return startTime; 061 } 062 063 public long getEndTime() { 064 return endTime; 065 } 066 067 public final Map<PropertyChange, Optional<String>> getStatus() { 068 return status; 069 } 070}