Package org.wildfly.common.codec

Class Base64Alphabet

java.lang.Object

org.wildfly.common.codec.Alphabet

org.wildfly.common.codec.Base64Alphabet

public abstract class Base64Alphabet
extends Alphabet

A base-64 alphabet.

See Also:

• ByteIterator.base64Encode(Base64Alphabet)
• CodePointIterator.base64Decode(Base64Alphabet)

Field Summary

Fields

Modifier and Type	Field	Description
static final Base64Alphabet	STANDARD	The standard RFC 4648 base-64 alphabet.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Base64Alphabet(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 6-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 Details

STANDARD

public static final Base64Alphabet STANDARD

The standard RFC 4648 base-64 alphabet.

Constructor Details

Base64Alphabet

protected Base64Alphabet(boolean littleEndian)

Construct a new instance.

Parameters:

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

Method Details

encode

public abstract int encode(int val)

Encode the given 6-bit value to a code point.

Specified by:

encode in class Alphabet

Parameters:

val - the 6-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 6-bit value or -1 if the code point is not valid