Package org.apache.hadoop.hbase.io.hfile

Class KVGenerator

java.lang.Object

org.apache.hadoop.hbase.io.hfile.KVGenerator

class KVGenerator
extends Object

Generate random <key, value> pairs.

Copied from hadoop-3315 tfile. Remove after tfile is committed and use the tfile version of this class instead.

Field Summary

Fields

Modifier and Type	Field	Description
private final byte[][]	dict
private final RandomDistribution.DiscreteRNG	keyLenRNG
private org.apache.hadoop.io.BytesWritable	lastKey
private static final int	MIN_KEY_LEN
private final byte[]	prefix
private final Random	random
private final boolean	sorted
private final RandomDistribution.DiscreteRNG	valLenRNG

Constructor Summary

Constructors

Constructor	Description
KVGenerator(Random random, boolean sorted, RandomDistribution.DiscreteRNG keyLenRNG, RandomDistribution.DiscreteRNG valLenRNG, RandomDistribution.DiscreteRNG wordLenRNG, int dictSize)

Method Summary

Modifier and Type	Method	Description
private void	fillKey(org.apache.hadoop.io.BytesWritable o)
private void	fillValue(org.apache.hadoop.io.BytesWritable o)
private void	incrementPrefix()
void	next(org.apache.hadoop.io.BytesWritable key, org.apache.hadoop.io.BytesWritable value, boolean dupKey)

Methods inherited from class java.lang.Object

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

Field Details

random

private final Random random

dict

private final byte[][] dict

sorted

private final boolean sorted

keyLenRNG

private final RandomDistribution.DiscreteRNG keyLenRNG

valLenRNG

private final RandomDistribution.DiscreteRNG valLenRNG

lastKey

private org.apache.hadoop.io.BytesWritable lastKey

MIN_KEY_LEN

private static final int MIN_KEY_LEN

See Also:

• Constant Field Values

prefix

private final byte[] prefix

Constructor Details

KVGenerator

public KVGenerator(Random random,
 boolean sorted,
 RandomDistribution.DiscreteRNG keyLenRNG,
 RandomDistribution.DiscreteRNG valLenRNG,
 RandomDistribution.DiscreteRNG wordLenRNG,
 int dictSize)

Method Details

fillKey

private void fillKey(org.apache.hadoop.io.BytesWritable o)

fillValue

private void fillValue(org.apache.hadoop.io.BytesWritable o)

incrementPrefix

private void incrementPrefix()

next

public void next(org.apache.hadoop.io.BytesWritable key,
 org.apache.hadoop.io.BytesWritable value,
 boolean dupKey)