com.intel.hadoop.graphbuilder.preprocess.mapreduce
Class EdgeTransformMapper<VidType extends org.apache.hadoop.io.WritableComparable<VidType>>

java.lang.Object
  extended by org.apache.hadoop.mapred.MapReduceBase
      extended by com.intel.hadoop.graphbuilder.preprocess.mapreduce.EdgeTransformMapper<VidType>
Type Parameters:
VidType -
All Implemented Interfaces:
java.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,VidType,PairListType>

public class EdgeTransformMapper<VidType extends org.apache.hadoop.io.WritableComparable<VidType>>
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,VidType,PairListType>

This Mapper class maps each edge (u,v,data) into (u, (v, data)) or (v, (u, data)) based on reduceEndPoint parameter in the JobConf configured in EdgeTrandFormMR.


Constructor Summary
EdgeTransformMapper()
           
 
Method Summary
 void configure(org.apache.hadoop.mapred.JobConf job)
           
 void map(org.apache.hadoop.io.LongWritable key, org.apache.hadoop.io.Text value, org.apache.hadoop.mapred.OutputCollector<VidType,PairListType> out, org.apache.hadoop.mapred.Reporter report)
           
 
Methods inherited from class org.apache.hadoop.mapred.MapReduceBase
close
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface java.io.Closeable
close
 

Constructor Detail

EdgeTransformMapper

public EdgeTransformMapper()
Method Detail

configure

public void configure(org.apache.hadoop.mapred.JobConf job)
Specified by:
configure in interface org.apache.hadoop.mapred.JobConfigurable
Overrides:
configure in class org.apache.hadoop.mapred.MapReduceBase

map

public void map(org.apache.hadoop.io.LongWritable key,
                org.apache.hadoop.io.Text value,
                org.apache.hadoop.mapred.OutputCollector<VidType,PairListType> out,
                org.apache.hadoop.mapred.Reporter report)
         throws java.io.IOException
Specified by:
map in interface org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,VidType extends org.apache.hadoop.io.WritableComparable<VidType>,PairListType>
Throws:
java.io.IOException