eu.dnetlib.data.mapreduce.hbase.broker.enrich

Class AbstractEnrichmentMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<ImmutableBytesWritable,Result,KEYOUT,VALUEOUT>

org.apache.hadoop.hbase.mapreduce.TableMapper<ImmutableBytesWritable,ImmutableBytesWritable>

eu.dnetlib.data.mapreduce.hbase.broker.enrich.AbstractEnrichmentMapper

Direct Known Subclasses:

EnrichmentMapper, ProjectEnrichmentMapper, SoftwareEnrichmentMapper

public abstract class AbstractEnrichmentMapper
extends TableMapper<ImmutableBytesWritable,ImmutableBytesWritable>

Created by claudio on 21/02/2017.

Nested Class Summary

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

org.apache.hadoop.mapreduce.Mapper.Context

Field Summary

Fields

Modifier and Type	Field and Description
protected ImmutableBytesWritable	outKey
protected ImmutableBytesWritable	outValue

Constructor Summary

Constructors

Constructor and Description
AbstractEnrichmentMapper()

Method Summary

Modifier and Type	Method and Description
protected abstract String	counterGroup()
protected void	emit(org.apache.hadoop.mapreduce.Mapper.Context context, byte[] key, byte[] value, String entityType)
protected byte[]	getEmitKey(org.apache.hadoop.mapreduce.Mapper.Context context, ImmutableBytesWritable key, Map<byte[],byte[]> mergedIn)
protected void	setup(org.apache.hadoop.mapreduce.Mapper.Context context)

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

cleanup, map, run

Methods inherited from class java.lang.Object

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

Field Detail

outValue

protected ImmutableBytesWritable outValue

outKey

protected ImmutableBytesWritable outKey

Constructor Detail

AbstractEnrichmentMapper

public AbstractEnrichmentMapper()

Method Detail

counterGroup

protected abstract String counterGroup()

setup

protected void setup(org.apache.hadoop.mapreduce.Mapper.Context context)

Overrides:

setup in class org.apache.hadoop.mapreduce.Mapper<ImmutableBytesWritable,Result,ImmutableBytesWritable,ImmutableBytesWritable>

emit

protected void emit(org.apache.hadoop.mapreduce.Mapper.Context context,
                    byte[] key,
                    byte[] value,
                    String entityType)

getEmitKey

protected byte[] getEmitKey(org.apache.hadoop.mapreduce.Mapper.Context context,
                            ImmutableBytesWritable key,
                            Map<byte[],byte[]> mergedIn)