de.hpi.fgis.voidgen.hadoop.tasks.clusterinformation
Class ClusterInfoPatternStep1MapperTask2

java.lang.Object
  extended by org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,StringIntPair,org.apache.hadoop.io.Text>
      extended by de.hpi.fgis.voidgen.hadoop.tasks.clusterinformation.ClusterInfoPatternStep1MapperTask2

public class ClusterInfoPatternStep1MapperTask2
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,StringIntPair,org.apache.hadoop.io.Text>

For every input quadruple where subject and object are URLs the subject and object URLs are processed. For each part of each URL (separated by '/' or ':') a key-value pair is emitted.

Input

Output

Author:
Dandy Fenz, Hasso Plattner Institute at University of Potsdam, Germany, Matthias Pohl, Hasso Plattner Institute at University of Potsdam, Germany, Johannes Gosda, Hasso Plattner Institute at University of Potsdam, Germany

Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper
org.apache.hadoop.mapreduce.Mapper.Context
 
Constructor Summary
ClusterInfoPatternStep1MapperTask2()
           
 
Method Summary
 void map(org.apache.hadoop.io.LongWritable key, org.apache.hadoop.io.Text value, org.apache.hadoop.mapreduce.Mapper.Context context)
           
 
Methods inherited from class org.apache.hadoop.mapreduce.Mapper
cleanup, run, setup
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ClusterInfoPatternStep1MapperTask2

public ClusterInfoPatternStep1MapperTask2()
Method Detail

map

public void map(org.apache.hadoop.io.LongWritable key,
                org.apache.hadoop.io.Text value,
                org.apache.hadoop.mapreduce.Mapper.Context context)
         throws java.io.IOException,
                java.lang.InterruptedException
Overrides:
map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,StringIntPair,org.apache.hadoop.io.Text>
Throws:
java.io.IOException
java.lang.InterruptedException