Package org.red5.io.utils

Class HexCharset

java.lang.Object

java.nio.charset.Charset

org.red5.io.utils.HexCharset

All Implemented Interfaces:

Comparable<Charset>

public class HexCharset
extends Charset

This was borrowed from the Soupdragon base64 library.

Codec to translate between hex coding and byte string.

Hex output is capital if the char set name is given in capitals.

hex:nn used as a charset name inserts \n after every nnth character.

Author:

Malcolm McMahon

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private class	HexCharset.Decoder
private class	HexCharset.Encoder

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	codehex
private static final String	codeHEX
private String	codes
private Integer	measure

Constructor Summary

Constructors

Constructor	Description
HexCharset(boolean caps)	Creates a new instance of HexCharset
HexCharset(boolean caps, int measure)	Construct the charset

Method Summary

Modifier and Type	Method	Description
boolean	contains(Charset cs)	Tells whether or not this charset contains the given charset.
CharsetDecoder	newDecoder()	Constructs a new decoder for this charset.
CharsetEncoder	newEncoder()	Constructs a new encoder for this charset.

Methods inherited from class java.nio.charset.Charset

aliases, availableCharsets, canEncode, compareTo, decode, defaultCharset, displayName, displayName, encode, encode, equals, forName, hashCode, isRegistered, isSupported, name, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

codeHEX

private static final String codeHEX

See Also:

• Constant Field Values

codehex

private static final String codehex

See Also:

• Constant Field Values

codes

private String codes

measure

private Integer measure

Constructor Details

HexCharset

public HexCharset(boolean caps)

Creates a new instance of HexCharset

Parameters:

caps - true for A-F, false for a-f

HexCharset

public HexCharset(boolean caps,
 int measure)

Construct the charset

Parameters:

caps - true for A-F, false for a-f

measure - Line width for decoding

Method Details

newEncoder

public CharsetEncoder newEncoder()

Constructs a new encoder for this charset.

Specified by:

newEncoder in class Charset

Returns:

A new encoder for this charset

newDecoder

public CharsetDecoder newDecoder()

Constructs a new decoder for this charset.

Specified by:

newDecoder in class Charset

Returns:

A new decoder for this charset

contains

public boolean contains(Charset cs)

Tells whether or not this charset contains the given charset.

A charset C is said to contain a charset D if, and only if, every character representable in D is also representable in C. If this relationship holds then it is guaranteed that every string that can be encoded in D can also be encoded in C without performing any replacements.

That C contains D does not imply that each character representable in C by a particular byte sequence is represented in D by the same byte sequence, although sometimes this is the case.

Every charset contains itself.

This method computes an approximation of the containment relation: If it returns true then the given charset is known to be contained by this charset; if it returns false, however, then it is not necessarily the case that the given charset is not contained in this charset.

Specified by:

contains in class Charset

Returns:

true if, and only if, the given charset is contained in this charset