ai.grakn.kb.internal.computer

Class GraknBinaryInputFormat

java.lang.Object

org.apache.hadoop.mapreduce.InputFormat<org.janusgraph.diskstorage.StaticBuffer,Iterable<org.janusgraph.diskstorage.Entry>>

org.janusgraph.hadoop.formats.util.AbstractBinaryInputFormat

ai.grakn.kb.internal.computer.GraknBinaryInputFormat

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, org.apache.tinkerpop.gremlin.hadoop.structure.io.HadoopPoolsConfigurable

public class GraknBinaryInputFormat
extends org.janusgraph.hadoop.formats.util.AbstractBinaryInputFormat

Override JanusGraph's Cassandra3BinaryInputFormat class This class removes dependency from columnFamilyInput (which does not exist in Cassandra 3.x) and instead it relies on the newer CqlInputFormat.

Field Summary

Fields inherited from class org.janusgraph.hadoop.formats.util.AbstractBinaryInputFormat

hadoopConf, janusgraphConf, mrConf

Constructor Summary

Constructors

Constructor and Description
GraknBinaryInputFormat()

Method Summary

Modifier and Type	Method and Description
org.apache.hadoop.mapreduce.RecordReader<org.janusgraph.diskstorage.StaticBuffer,Iterable<org.janusgraph.diskstorage.Entry>>	createRecordReader(org.apache.hadoop.mapreduce.InputSplit inputSplit, org.apache.hadoop.mapreduce.TaskAttemptContext taskAttemptContext)
org.apache.hadoop.mapreduce.RecordReader<org.janusgraph.diskstorage.StaticBuffer,Iterable<org.janusgraph.diskstorage.Entry>>	getRecordReader()
List<org.apache.hadoop.mapreduce.InputSplit>	getSplits(org.apache.hadoop.mapreduce.JobContext jobContext)
void	setConf(org.apache.hadoop.conf.Configuration config)

Methods inherited from class org.janusgraph.hadoop.formats.util.AbstractBinaryInputFormat

getConf

Methods inherited from class java.lang.Object

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

Constructor Detail

GraknBinaryInputFormat

public GraknBinaryInputFormat()

Method Detail

getRecordReader

public org.apache.hadoop.mapreduce.RecordReader<org.janusgraph.diskstorage.StaticBuffer,Iterable<org.janusgraph.diskstorage.Entry>> getRecordReader()

getSplits

public List<org.apache.hadoop.mapreduce.InputSplit> getSplits(org.apache.hadoop.mapreduce.JobContext jobContext)
                                                       throws IOException

Specified by:

getSplits in class org.apache.hadoop.mapreduce.InputFormat<org.janusgraph.diskstorage.StaticBuffer,Iterable<org.janusgraph.diskstorage.Entry>>

Throws:

IOException

createRecordReader

public org.apache.hadoop.mapreduce.RecordReader<org.janusgraph.diskstorage.StaticBuffer,Iterable<org.janusgraph.diskstorage.Entry>> createRecordReader(org.apache.hadoop.mapreduce.InputSplit inputSplit,
                                                                                                                                                       org.apache.hadoop.mapreduce.TaskAttemptContext taskAttemptContext)
                                                                                                                                                throws IOException,
                                                                                                                                                       InterruptedException

Specified by:

createRecordReader in class org.apache.hadoop.mapreduce.InputFormat<org.janusgraph.diskstorage.StaticBuffer,Iterable<org.janusgraph.diskstorage.Entry>>

Throws:

IOException

InterruptedException

setConf

public void setConf(org.apache.hadoop.conf.Configuration config)

Specified by:

setConf in interface org.apache.hadoop.conf.Configurable

Specified by:

setConf in interface org.apache.tinkerpop.gremlin.hadoop.structure.io.HadoopPoolsConfigurable

Overrides:

setConf in class org.janusgraph.hadoop.formats.util.AbstractBinaryInputFormat