eu.dicodeproject.analysis.generic
Class GenericMapper

java.lang.Object
  org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.client.Result,KEYOUT,VALUEOUT>
      org.apache.hadoop.hbase.mapreduce.TableMapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>
          eu.dicodeproject.analysis.generic.GenericMapper

public class GenericMapper
extends org.apache.hadoop.hbase.mapreduce.TableMapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>

Simple word count mapper Either emits complete content of a column or parts of it using a configured separator

Nested Class Summary

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

org.apache.hadoop.mapreduce.Mapper.Context

Constructor Summary

GenericMapper()

Method Summary

protected void	map(org.apache.hadoop.hbase.io.ImmutableBytesWritable row, org.apache.hadoop.hbase.client.Result values, org.apache.hadoop.mapreduce.Mapper.Context context)
protected void	setup(org.apache.hadoop.mapreduce.Mapper.Context context) Creates the Row Key from current date and query/topic

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

GenericMapper

public GenericMapper()

Method Detail

setup

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

Creates the Row Key from current date and query/topic

Overrides:

setup in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.client.Result,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>

Throws:

IOException

InterruptedException

map

protected void map(org.apache.hadoop.hbase.io.ImmutableBytesWritable row,
                   org.apache.hadoop.hbase.client.Result values,
                   org.apache.hadoop.mapreduce.Mapper.Context context)
            throws IOException,
                   InterruptedException

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.client.Result,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>

Throws:

IOException

InterruptedException