hadoop NoSplitTextInputFormat 源码
haddop NoSplitTextInputFormat 代码
文件路径：/hadoop-tools/hadoop-dynamometer/hadoop-dynamometer-workload/src/main/java/org/apache/hadoop/tools/dynamometer/workloadgenerator/audit/NoSplitTextInputFormat.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.dynamometer.workloadgenerator.audit;
import java.io.IOException;
import java.util.List;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapreduce.JobContext;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.input.TextInputFormat;
/**
* A simple {@link TextInputFormat} that disables splitting of files. This is
* the {@link org.apache.hadoop.mapreduce.InputFormat} used by
* {@link AuditReplayMapper}.
*/
public class NoSplitTextInputFormat extends TextInputFormat {
@Override
public List<FileStatus> listStatus(JobContext context) throws IOException {
context.getConfiguration().set(FileInputFormat.INPUT_DIR,
context.getConfiguration().get(AuditReplayMapper.INPUT_PATH_KEY));
return super.listStatus(context);
}
@Override
public boolean isSplitable(JobContext context, Path file) {
return false;
}
}
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