hadoop HistoryViewerPrinter 源码
haddop HistoryViewerPrinter 代码
文件路径：/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/HistoryViewerPrinter.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.mapreduce.jobhistory;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import java.io.IOException;
import java.io.PrintStream;
/**
* Used by the {@link HistoryViewer} to print job history in different formats.
*/
@InterfaceAudience.Private
@InterfaceStability.Unstable
interface HistoryViewerPrinter {
/**
* Print out the Job History to the given {@link PrintStream}.
* @param ps the {@link PrintStream} to print to
* @throws IOException when a problem occurs while printing
*/
void print(PrintStream ps) throws IOException;
}
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