Package org.apache.hadoop.crypto.random

Class OsSecureRandom

java.lang.Object

java.util.Random

org.apache.hadoop.crypto.random.OsSecureRandom

All Implemented Interfaces:

Closeable, Serializable, AutoCloseable, RandomGenerator, Configurable

@Private
public class OsSecureRandom
extends Random
implements Closeable, Configurable

A Random implementation that uses random bytes sourced from the operating system.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.random.RandomGenerator

RandomGenerator.ArbitrarilyJumpableGenerator, RandomGenerator.JumpableGenerator, RandomGenerator.LeapableGenerator, RandomGenerator.SplittableGenerator, RandomGenerator.StreamableGenerator

Field Summary

Fields

Modifier and Type	Field	Description
static final org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor	Description
OsSecureRandom()

Method Summary

Modifier and Type	Method	Description
void	close()
protected void	finalize()
Configuration	getConf()	Return the configuration used by this object.
boolean	isClosed()
protected int	next(int nbits)
void	nextBytes(byte[] bytes)
void	setConf(Configuration conf)	Set the configuration to be used by this object.

Methods inherited from class java.util.Random

doubles, doubles, doubles, doubles, ints, ints, ints, ints, longs, longs, longs, longs, nextBoolean, nextDouble, nextFloat, nextGaussian, nextInt, nextInt, nextLong, setSeed

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.random.RandomGenerator

isDeprecated, nextDouble, nextDouble, nextExponential, nextFloat, nextFloat, nextGaussian, nextInt, nextLong, nextLong

Field Details

LOG

public static final org.slf4j.Logger LOG

Constructor Details

OsSecureRandom

public OsSecureRandom()

Method Details

isClosed

@VisibleForTesting
public boolean isClosed()

setConf

public void setConf(Configuration conf)

Description copied from interface: Configurable

Set the configuration to be used by this object.

Specified by:

setConf in interface Configurable

Parameters:

conf - configuration to be used

getConf

public Configuration getConf()

Description copied from interface: Configurable

Return the configuration used by this object.

Specified by:

getConf in interface Configurable

Returns:

Configuration

nextBytes

public void nextBytes(byte[] bytes)

Specified by:

nextBytes in interface RandomGenerator

Overrides:

nextBytes in class Random

next

protected int next(int nbits)

Overrides:

next in class Random

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable