Package org.apereo.cas.util.gen

Class AbstractRandomStringGenerator

java.lang.Object

org.apereo.cas.util.gen.AbstractRandomStringGenerator

All Implemented Interfaces:

RandomStringGenerator

Direct Known Subclasses:

Base64RandomStringGenerator, DefaultRandomStringGenerator, HexRandomStringGenerator

public abstract class AbstractRandomStringGenerator
extends java.lang.Object
implements RandomStringGenerator

This is AbstractRandomStringGenerator.

Implementation of the RandomStringGenerator that allows you to define the length of the random part.

Since:

5.2.0

Field Summary

Fields

Modifier and Type	Field	Description
protected long	defaultLength	Default string length before encoding.
protected java.security.SecureRandom	randomizer	An instance of secure random to ensure randomness is secure.

Fields inherited from interface org.apereo.cas.util.gen.RandomStringGenerator

DEFAULT_LENGTH

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractRandomStringGenerator()	Instantiates a new default random string generator with length set to RandomStringGenerator.DEFAULT_LENGTH.

Method Summary

Modifier and Type	Method	Description
protected java.lang.String	convertBytesToString(byte[] random)	Converts byte[] to String by simple cast.
java.lang.String	getAlgorithm()	The algorithm used by the generator's SecureRandom instance.
java.lang.String	getNewString()	A new random string of specified default size.
java.lang.String	getNewString(int size)	A new random string of specified initial size.
byte[]	getNewStringAsBytes(int size)	Gets the new string as bytes.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apereo.cas.util.gen.RandomStringGenerator

getDefaultLength

Field Detail

randomizer

protected final java.security.SecureRandom randomizer

An instance of secure random to ensure randomness is secure.

defaultLength

protected final long defaultLength

Default string length before encoding.

Constructor Detail

AbstractRandomStringGenerator

protected AbstractRandomStringGenerator()

Instantiates a new default random string generator with length set to RandomStringGenerator.DEFAULT_LENGTH.

Method Detail

getAlgorithm

public java.lang.String getAlgorithm()

Description copied from interface: RandomStringGenerator

The algorithm used by the generator's SecureRandom instance.

Specified by:

getAlgorithm in interface RandomStringGenerator

Returns:

the algorithm used by the generator's SecureRandom instance.

convertBytesToString

protected java.lang.String convertBytesToString(byte[] random)

Converts byte[] to String by simple cast. Subclasses should override.

Parameters:

random - raw bytes

Returns:

a converted String

getNewString

public java.lang.String getNewString(int size)

Description copied from interface: RandomStringGenerator

A new random string of specified initial size.

Specified by:

getNewString in interface RandomStringGenerator

Parameters:

size - length of random string before encoding

Returns:

a new random string of specified initial size

getNewString

public java.lang.String getNewString()

Description copied from interface: RandomStringGenerator

A new random string of specified default size.

Specified by:

getNewString in interface RandomStringGenerator

Returns:

a new random string of default initial size

getNewStringAsBytes

public byte[] getNewStringAsBytes(int size)

Description copied from interface: RandomStringGenerator

Gets the new string as bytes.

Specified by:

getNewStringAsBytes in interface RandomStringGenerator

Parameters:

size - the size of return

Returns:

the new random string as bytes