io.druid.indexer

Class HadoopDruidIndexerMapper<KEYOUT,VALUEOUT>

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,KEYOUT,VALUEOUT>

io.druid.indexer.HadoopDruidIndexerMapper<KEYOUT,VALUEOUT>

Direct Known Subclasses:

DetermineHashedPartitionsJob.DetermineCardinalityMapper, DeterminePartitionsJob.DeterminePartitionsDimSelectionAssumeGroupedMapper, DeterminePartitionsJob.DeterminePartitionsGroupByMapper, IndexGeneratorJob.IndexGeneratorMapper

public abstract class HadoopDruidIndexerMapper<KEYOUT,VALUEOUT>
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,KEYOUT,VALUEOUT>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper

org.apache.hadoop.mapreduce.Mapper.Context

Constructor Summary

Constructors

Constructor and Description
HadoopDruidIndexerMapper()

Method Summary

Methods

Modifier and Type	Method and Description
HadoopDruidIndexerConfig	getConfig()
io.druid.data.input.impl.StringInputRowParser	getParser()
protected abstract void	innerMap(io.druid.data.input.InputRow inputRow, org.apache.hadoop.io.Text text, org.apache.hadoop.mapreduce.Mapper.Context context)
protected void	map(org.apache.hadoop.io.LongWritable key, org.apache.hadoop.io.Text value, org.apache.hadoop.mapreduce.Mapper.Context context)
protected void	setup(org.apache.hadoop.mapreduce.Mapper.Context context)

Methods inherited from class org.apache.hadoop.mapreduce.Mapper

cleanup, run

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HadoopDruidIndexerMapper

public HadoopDruidIndexerMapper()

Method Detail

setup

protected void setup(org.apache.hadoop.mapreduce.Mapper.Context context)
              throws IOException,
                     InterruptedException

Overrides:

setup in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,KEYOUT,VALUEOUT>

Throws:

IOException

InterruptedException

getConfig

public HadoopDruidIndexerConfig getConfig()

getParser

public io.druid.data.input.impl.StringInputRowParser getParser()

map

protected void map(org.apache.hadoop.io.LongWritable key,
       org.apache.hadoop.io.Text value,
       org.apache.hadoop.mapreduce.Mapper.Context context)
            throws IOException,
                   InterruptedException

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,KEYOUT,VALUEOUT>

Throws:

IOException

InterruptedException

innerMap

protected abstract void innerMap(io.druid.data.input.InputRow inputRow,
            org.apache.hadoop.io.Text text,
            org.apache.hadoop.mapreduce.Mapper.Context context)
                          throws IOException,
                                 InterruptedException

Throws:

IOException

InterruptedException