org.apache.hadoop.mapred.KeyValueTextInputFormat Maven / Gradle / Ivy
/**
* 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 org.apache.hadoop.shaded.com.liance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org.apache.hadoop.shaded.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.shaded.org.apache.hadoop.mapred;
import java.org.apache.hadoop.shaded.io.IOException;
import org.apache.hadoop.shaded.org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.shaded.org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.shaded.org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.shaded.org.apache.hadoop.fs.Path;
import org.apache.hadoop.shaded.org.apache.hadoop.org.apache.hadoop.shaded.io.Text;
import org.apache.hadoop.shaded.org.apache.hadoop.org.apache.hadoop.shaded.io.org.apache.hadoop.shaded.com.ress.CompressionCodec;
import org.apache.hadoop.shaded.org.apache.hadoop.org.apache.hadoop.shaded.io.org.apache.hadoop.shaded.com.ress.CompressionCodecFactory;
import org.apache.hadoop.shaded.org.apache.hadoop.org.apache.hadoop.shaded.io.org.apache.hadoop.shaded.com.ress.SplittableCompressionCodec;
/**
* An {@link InputFormat} for plain text files. Files are broken into lines.
* Either linefeed or carriage-return are used to signal end of line. Each line
* is divided into key and value parts by a separator byte. If no such a byte
* exists, the key will be the entire line and value will be empty.
*/
@InterfaceAudience.Public
@InterfaceStability.Stable
public class KeyValueTextInputFormat extends FileInputFormat
implements JobConfigurable {
private CompressionCodecFactory org.apache.hadoop.shaded.com.ressionCodecs = null;
public void configure(JobConf conf) {
org.apache.hadoop.shaded.com.ressionCodecs = new CompressionCodecFactory(conf);
}
protected boolean isSplitable(FileSystem fs, Path file) {
final CompressionCodec codec = org.apache.hadoop.shaded.com.ressionCodecs.getCodec(file);
if (null == codec) {
return true;
}
return codec instanceof SplittableCompressionCodec;
}
public RecordReader getRecordReader(InputSplit genericSplit,
JobConf job,
Reporter reporter)
throws IOException {
reporter.setStatus(genericSplit.toString());
return new KeyValueLineRecordReader(job, (FileSplit) genericSplit);
}
}