hadoop TaskAttemptInfo 源码
haddop TaskAttemptInfo 代码
文件路径：/hadoop-tools/hadoop-rumen/src/main/java/org/apache/hadoop/tools/rumen/TaskAttemptInfo.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.tools.rumen;
import java.util.List;
import org.apache.hadoop.mapred.TaskStatus.State;
/**
* {@link TaskAttemptInfo} is a collection of statistics about a particular
* task-attempt gleaned from job-history of the job.
*/
public abstract class TaskAttemptInfo {
protected final State state;
protected final TaskInfo taskInfo;
protected final List<List<Integer>> allSplits;
protected TaskAttemptInfo
(State state, TaskInfo taskInfo, List<List<Integer>> allSplits) {
if (state == State.SUCCEEDED || state == State.FAILED) {
this.state = state;
} else {
throw new IllegalArgumentException("status cannot be " + state);
}
this.taskInfo = taskInfo;
this.allSplits = allSplits;
}
protected TaskAttemptInfo
(State state, TaskInfo taskInfo) {
this(state, taskInfo, LoggedTaskAttempt.SplitVectorKind.getNullSplitsVector());
}
/**
* Get the final {@link State} of the task-attempt.
*
* @return the final <code>State</code> of the task-attempt
*/
public State getRunState() {
return state;
}
/**
* Get the total runtime for the task-attempt.
*
* @return the total runtime for the task-attempt
*/
public abstract long getRuntime();
/**
* Get the {@link TaskInfo} for the given task-attempt.
*
* @return the <code>TaskInfo</code> for the given task-attempt
*/
public TaskInfo getTaskInfo() {
return taskInfo;
}
public List<Integer> getSplitVector(LoggedTaskAttempt.SplitVectorKind kind) {
return kind.get(allSplits);
}
}
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