Package org.apache.hadoop.tools.dynamometer.workloadgenerator

Class VirtualRecordReader<K,V>

java.lang.Object

org.apache.hadoop.mapreduce.RecordReader<K,V>

org.apache.hadoop.tools.dynamometer.workloadgenerator.VirtualRecordReader<K,V>

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class VirtualRecordReader<K,V>
extends org.apache.hadoop.mapreduce.RecordReader<K,V>

A simple fake record reader which simply runs for some time duration.

Constructor Summary

Constructors

Constructor	Description
VirtualRecordReader()

Method Summary

Modifier and Type	Method	Description
void	close()
K	getCurrentKey()
V	getCurrentValue()
float	getProgress()
void	initialize(org.apache.hadoop.mapreduce.InputSplit split, org.apache.hadoop.mapreduce.TaskAttemptContext context)
boolean	nextKeyValue()

Methods inherited from class java.lang.Object

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

Constructor Detail

VirtualRecordReader

public VirtualRecordReader()

Method Detail

initialize

public void initialize(org.apache.hadoop.mapreduce.InputSplit split,
                       org.apache.hadoop.mapreduce.TaskAttemptContext context)
                throws java.io.IOException,
                       java.lang.InterruptedException

Specified by:

initialize in class org.apache.hadoop.mapreduce.RecordReader<K,V>

Throws:

java.io.IOException

java.lang.InterruptedException

nextKeyValue

public boolean nextKeyValue()
                     throws java.io.IOException,
                            java.lang.InterruptedException

Specified by:

nextKeyValue in class org.apache.hadoop.mapreduce.RecordReader<K,V>

Throws:

java.io.IOException

java.lang.InterruptedException

getCurrentKey

public K getCurrentKey()
                throws java.io.IOException,
                       java.lang.InterruptedException

Specified by:

getCurrentKey in class org.apache.hadoop.mapreduce.RecordReader<K,V>

Throws:

java.io.IOException

java.lang.InterruptedException

getCurrentValue

public V getCurrentValue()
                  throws java.io.IOException,
                         java.lang.InterruptedException

Specified by:

getCurrentValue in class org.apache.hadoop.mapreduce.RecordReader<K,V>

Throws:

java.io.IOException

java.lang.InterruptedException

getProgress

public float getProgress()
                  throws java.io.IOException,
                         java.lang.InterruptedException

Specified by:

getProgress in class org.apache.hadoop.mapreduce.RecordReader<K,V>

Throws:

java.io.IOException

java.lang.InterruptedException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable

Specified by:

close in class org.apache.hadoop.mapreduce.RecordReader<K,V>

Throws:

java.io.IOException