com.intel.hadoop.graphbuilder.partition.mapreduce.vrecord
Class VrecordIngressMapper

java.lang.Object
  extended by org.apache.hadoop.mapred.MapReduceBase
      extended by com.intel.hadoop.graphbuilder.partition.mapreduce.vrecord.VrecordIngressMapper
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,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.Text>

public class VrecordIngressMapper
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.Text>

This mapper class map each VertexRecord into K records where K is the size of the mirror plus 1 for the owner. The keys are the partition ids in the mirrors and the owner.

Assuming the input vertex record was created using JsonVrecordFormatter.

See Also:
JsonVrecordFormatter

Constructor Summary
VrecordIngressMapper()
           
 
Method Summary
 void configure(org.apache.hadoop.mapred.JobConf job)
           
 void map(org.apache.hadoop.io.LongWritable arg0, org.apache.hadoop.io.Text arg1, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.Text> out, org.apache.hadoop.mapred.Reporter reporter)
           
 
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

VrecordIngressMapper

public VrecordIngressMapper()
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 arg0,
                org.apache.hadoop.io.Text arg1,
                org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.Text> out,
                org.apache.hadoop.mapred.Reporter reporter)
         throws java.io.IOException
Specified by:
map in interface org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.Text>
Throws:
java.io.IOException