Package org.wildfly.common.codec

Class Base32Alphabet

java.lang.Object

org.wildfly.common.codec.Alphabet

org.wildfly.common.codec.Base32Alphabet

public abstract class Base32Alphabet
extends Alphabet

A base-32 alphabet.

See Also:

ByteIterator.base32Encode(Base32Alphabet), CodePointIterator.base32Decode(Base32Alphabet)

Field Summary

Fields

Modifier and Type	Field	Description
static Base32Alphabet	LOWERCASE	The standard RFC 4648 base-32 alphabet mapped to lowercase.
static Base32Alphabet	STANDARD	The standard RFC 4648 base-32 alphabet.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Base32Alphabet(boolean littleEndian)	Construct a new instance.

Method Summary

Modifier and Type	Method	Description
abstract int	decode(int codePoint)	Decode the given code point.
abstract int	encode(int val)	Encode the given 5-bit value to a code point.

Methods inherited from class org.wildfly.common.codec.Alphabet

isLittleEndian

Methods inherited from class java.lang.Object

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

Field Detail

STANDARD

public static final Base32Alphabet STANDARD

The standard RFC 4648 base-32 alphabet.

LOWERCASE

public static final Base32Alphabet LOWERCASE

The standard RFC 4648 base-32 alphabet mapped to lowercase.

Constructor Detail

Base32Alphabet

protected Base32Alphabet(boolean littleEndian)

Construct a new instance.

Parameters:

littleEndian - true if the alphabet is little-endian (LSB first), false otherwise

Method Detail

encode

public abstract int encode(int val)

Encode the given 5-bit value to a code point.

Specified by:

encode in class Alphabet

Parameters:

val - the 5-bit value

Returns:

the Unicode code point

decode

public abstract int decode(int codePoint)

Decode the given code point. If the code point is not valid, -1 is returned.

Specified by:

decode in class Alphabet

Parameters:

codePoint - the code point

Returns:

the decoded 5-bit value or -1 if the code point is not valid