org.apache.hadoop.hive.ql.io.esriJson.UnenclosedEsriJsonInputFormat Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
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package org.apache.hadoop.hive.ql.io.esriJson;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.InputSplit;
import org.apache.hadoop.mapreduce.RecordReader;
import org.apache.hadoop.mapreduce.TaskAttemptContext;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import java.io.IOException;
// MRv2 by inheritance; MRv1 by composition/hybrid
public class UnenclosedEsriJsonInputFormat extends FileInputFormat
implements org.apache.hadoop.mapred.InputFormat {
// Mrv1 implementation member will be used only for getSplits().
// Will be instantiated only when Mrv1 in use.
private org.apache.hadoop.mapred.FileInputFormat baseIfmt = null;
@Override
public RecordReader createRecordReader(InputSplit arg0, TaskAttemptContext arg1)
throws IOException, InterruptedException { // MRv2
return new UnenclosedEsriJsonRecordReader();
}
@Override
public org.apache.hadoop.mapred.RecordReader getRecordReader( // MRv1
org.apache.hadoop.mapred.InputSplit arg0, org.apache.hadoop.mapred.JobConf arg1,
org.apache.hadoop.mapred.Reporter arg2) throws IOException {
return new UnenclosedEsriJsonRecordReader(arg0, arg1);
}
@Override
public org.apache.hadoop.mapred.InputSplit[] getSplits( // MRv1
org.apache.hadoop.mapred.JobConf arg0, int arg1) throws IOException {
baseIfmt = (baseIfmt != null) ? baseIfmt : new org.apache.hadoop.mapred.FileInputFormat() {
// Dummy method to satisfy interface but not meant to be called
public org.apache.hadoop.mapred.RecordReader getRecordReader(
org.apache.hadoop.mapred.InputSplit ign0, org.apache.hadoop.mapred.JobConf ign1,
org.apache.hadoop.mapred.Reporter ign2) throws IOException {
throw new UnsupportedOperationException("not meant to be called");
}
};
return baseIfmt.getSplits(arg0, arg1);
}
}