org.openimaj.hadoop.tools.twitter.token.outputmode.timeseries

Class WordDFIDFTimeSeriesReducer

java.lang.Object

org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text>

org.openimaj.hadoop.tools.twitter.token.outputmode.timeseries.WordDFIDFTimeSeriesReducer

public class WordDFIDFTimeSeriesReducer
extends org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text>

Given a stream of wordDFIDF as input, reads each DFIDF, constructs a time series and emits the time series

Author:

Sina Samangooei (ss@ecs.soton.ac.uk)

Nested Class Summary

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

org.apache.hadoop.mapreduce.Reducer.Context

Constructor Summary

Constructors

Constructor and Description
WordDFIDFTimeSeriesReducer()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	reduce(org.apache.hadoop.io.Text word, Iterable<org.apache.hadoop.io.BytesWritable> dfidfs, org.apache.hadoop.mapreduce.Reducer.Context context)

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

cleanup, run, setup

Methods inherited from class java.lang.Object

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

Constructor Detail

WordDFIDFTimeSeriesReducer

public WordDFIDFTimeSeriesReducer()

Method Detail

reduce

protected void reduce(org.apache.hadoop.io.Text word,
          Iterable<org.apache.hadoop.io.BytesWritable> dfidfs,
          org.apache.hadoop.mapreduce.Reducer.Context context)
               throws IOException,
                      InterruptedException

Overrides:

reduce in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text>

Throws:

IOException

InterruptedException