Package org.apache.hadoop.crypto.random

Class OsSecureRandom

java.lang.Object

java.util.Random

org.apache.hadoop.crypto.random.OsSecureRandom

All Implemented Interfaces:

java.io.Closeable, java.io.Serializable, java.lang.AutoCloseable, Configurable

@Private
public class OsSecureRandom
extends java.util.Random
implements java.io.Closeable, Configurable

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

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static 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

Field Detail

LOG

public static final org.slf4j.Logger LOG

Constructor Detail

OsSecureRandom

public OsSecureRandom()

Method Detail

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)

Overrides:

nextBytes in class java.util.Random

next

protected int next(int nbits)

Overrides:

next in class java.util.Random

close

public void close()

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable

finalize

protected void finalize()
                 throws java.lang.Throwable

Overrides:

finalize in class java.lang.Object

Throws:

java.lang.Throwable