org.apache.hadoop.hive.ql.io.IgnoreKeyTextOutputFormat Maven / Gradle / Ivy
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/**
* 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.hive.ql.io;
import java.io.IOException;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.io.Writable;
import org.apache.hadoop.io.WritableComparable;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.RecordWriter;
import org.apache.hadoop.mapred.Reporter;
import org.apache.hadoop.mapred.TextOutputFormat;
import org.apache.hadoop.util.Progressable;
/**
* This class replaces key with null before feeding the to
* TextOutputFormat.RecordWriter.
*
* @deprecated use {@link HiveIgnoreKeyTextOutputFormat} instead}
*/
@Deprecated
public class IgnoreKeyTextOutputFormat
extends TextOutputFormat {
protected static class IgnoreKeyWriter
implements RecordWriter {
private final RecordWriter mWriter;
public IgnoreKeyWriter(RecordWriter writer) {
this.mWriter = writer;
}
public synchronized void write(K key, V value) throws IOException {
this.mWriter.write(null, value);
}
public void close(Reporter reporter) throws IOException {
this.mWriter.close(reporter);
}
}
@Override
public RecordWriter getRecordWriter(FileSystem ignored, JobConf job,
String name, Progressable progress) throws IOException {
return new IgnoreKeyWriter(super.getRecordWriter(ignored, job, name,
progress));
}
}