hadoop ReconfigurationTaskStatus 源码
haddop ReconfigurationTaskStatus 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/ReconfigurationTaskStatus.java
/**
* 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.conf;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.ReconfigurationUtil.PropertyChange;
import java.util.Map;
import java.util.Optional;
@InterfaceAudience.LimitedPrivate({"HDFS", "Management Tools"})
@InterfaceStability.Unstable
public class ReconfigurationTaskStatus {
long startTime;
long endTime;
final Map<ReconfigurationUtil.PropertyChange, Optional<String>> status;
public ReconfigurationTaskStatus(long startTime, long endTime,
Map<ReconfigurationUtil.PropertyChange, Optional<String>> status) {
this.startTime = startTime;
this.endTime = endTime;
this.status = status;
}
/**
* Return true if
* - A reconfiguration task has finished or
* - an active reconfiguration task is running.
* @return true if startTime > 0; false if not.
*/
public boolean hasTask() {
return startTime > 0;
}
/**
* Return true if the latest reconfiguration task has finished and there is
* no another active task running.
* @return true if endTime > 0; false if not.
*/
public boolean stopped() {
return endTime > 0;
}
public long getStartTime() {
return startTime;
}
public long getEndTime() {
return endTime;
}
public final Map<PropertyChange, Optional<String>> getStatus() {
return status;
}
}
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