Package org.jboss.netty.handler.codec.base64

Class Base64

java.lang.Object

org.jboss.netty.handler.codec.base64.Base64

public final class Base64
extends java.lang.Object

Utility class for ChannelBuffer that encodes and decodes to and from Base64 notation.

The encoding and decoding algorithm in this class has been derived from Robert Harder's Public Domain Base64 Encoder/Decoder.

Field Summary

Fields

Modifier and Type	Field	Description
private static byte	EQUALS_SIGN	The equals sign (=) as a byte.
private static byte	EQUALS_SIGN_ENC
private static int	MAX_LINE_LENGTH	Maximum line length (76) of Base64 output.
private static byte	NEW_LINE	The new line character (\n) as a byte.
private static byte	WHITE_SPACE_ENC

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Base64()

Method Summary

Modifier and Type	Method	Description
private static byte[]	alphabet(Base64Dialect dialect)
private static boolean	breakLines(Base64Dialect dialect)
private static byte[]	decodabet(Base64Dialect dialect)
static ChannelBuffer	decode(ChannelBuffer src)
static ChannelBuffer	decode(ChannelBuffer src, int off, int len)
static ChannelBuffer	decode(ChannelBuffer src, int off, int len, ChannelBufferFactory bufferFactory)
static ChannelBuffer	decode(ChannelBuffer src, int off, int len, Base64Dialect dialect)
static ChannelBuffer	decode(ChannelBuffer src, int off, int len, Base64Dialect dialect, ChannelBufferFactory bufferFactory)
static ChannelBuffer	decode(ChannelBuffer src, ChannelBufferFactory bufferFactory)
static ChannelBuffer	decode(ChannelBuffer src, Base64Dialect dialect)
static ChannelBuffer	decode(ChannelBuffer src, Base64Dialect dialect, ChannelBufferFactory bufferFactory)
private static int	decode4to3(byte[] src, int srcOffset, ChannelBuffer dest, int destOffset, Base64Dialect dialect)
static ChannelBuffer	encode(ChannelBuffer src)
static ChannelBuffer	encode(ChannelBuffer src, boolean breakLines)
static ChannelBuffer	encode(ChannelBuffer src, boolean breakLines, ChannelBufferFactory bufferFactory)
static ChannelBuffer	encode(ChannelBuffer src, boolean breakLines, Base64Dialect dialect)
static ChannelBuffer	encode(ChannelBuffer src, boolean breakLines, Base64Dialect dialect, ChannelBufferFactory bufferFactory)
static ChannelBuffer	encode(ChannelBuffer src, int off, int len)
static ChannelBuffer	encode(ChannelBuffer src, int off, int len, boolean breakLines)
static ChannelBuffer	encode(ChannelBuffer src, int off, int len, boolean breakLines, ChannelBufferFactory bufferFactory)
static ChannelBuffer	encode(ChannelBuffer src, int off, int len, boolean breakLines, Base64Dialect dialect)
static ChannelBuffer	encode(ChannelBuffer src, int off, int len, boolean breakLines, Base64Dialect dialect, ChannelBufferFactory bufferFactory)
static ChannelBuffer	encode(ChannelBuffer src, int off, int len, ChannelBufferFactory bufferFactory)
static ChannelBuffer	encode(ChannelBuffer src, int off, int len, Base64Dialect dialect)
static ChannelBuffer	encode(ChannelBuffer src, int off, int len, Base64Dialect dialect, ChannelBufferFactory bufferFactory)
static ChannelBuffer	encode(ChannelBuffer src, ChannelBufferFactory bufferFactory)
static ChannelBuffer	encode(ChannelBuffer src, Base64Dialect dialect)
static ChannelBuffer	encode(ChannelBuffer src, Base64Dialect dialect, ChannelBufferFactory bufferFactory)
private static void	encode3to4(ChannelBuffer src, int srcOffset, int numSigBytes, ChannelBuffer dest, int destOffset, Base64Dialect dialect)

Methods inherited from class java.lang.Object

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

Field Detail

MAX_LINE_LENGTH

private static final int MAX_LINE_LENGTH

Maximum line length (76) of Base64 output.

See Also:

Constant Field Values

EQUALS_SIGN

private static final byte EQUALS_SIGN

The equals sign (=) as a byte.

See Also:

Constant Field Values

NEW_LINE

private static final byte NEW_LINE

The new line character (\n) as a byte.

See Also:

Constant Field Values

WHITE_SPACE_ENC

private static final byte WHITE_SPACE_ENC

See Also:

Constant Field Values

EQUALS_SIGN_ENC

private static final byte EQUALS_SIGN_ENC

See Also:

Constant Field Values

Constructor Detail

Base64

private Base64()

Method Detail

alphabet

private static byte[] alphabet(Base64Dialect dialect)

decodabet

private static byte[] decodabet(Base64Dialect dialect)

breakLines

private static boolean breakLines(Base64Dialect dialect)

encode

public static ChannelBuffer encode(ChannelBuffer src)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   Base64Dialect dialect)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   ChannelBufferFactory bufferFactory)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   Base64Dialect dialect,
                                   ChannelBufferFactory bufferFactory)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   boolean breakLines)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   boolean breakLines,
                                   Base64Dialect dialect)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   boolean breakLines,
                                   ChannelBufferFactory bufferFactory)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   boolean breakLines,
                                   Base64Dialect dialect,
                                   ChannelBufferFactory bufferFactory)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   int off,
                                   int len)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   int off,
                                   int len,
                                   Base64Dialect dialect)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   int off,
                                   int len,
                                   ChannelBufferFactory bufferFactory)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   int off,
                                   int len,
                                   Base64Dialect dialect,
                                   ChannelBufferFactory bufferFactory)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   int off,
                                   int len,
                                   boolean breakLines)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   int off,
                                   int len,
                                   boolean breakLines,
                                   Base64Dialect dialect)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   int off,
                                   int len,
                                   boolean breakLines,
                                   ChannelBufferFactory bufferFactory)

encode

public static ChannelBuffer encode(ChannelBuffer src,
                                   int off,
                                   int len,
                                   boolean breakLines,
                                   Base64Dialect dialect,
                                   ChannelBufferFactory bufferFactory)

encode3to4

private static void encode3to4(ChannelBuffer src,
                               int srcOffset,
                               int numSigBytes,
                               ChannelBuffer dest,
                               int destOffset,
                               Base64Dialect dialect)

decode

public static ChannelBuffer decode(ChannelBuffer src)

decode

public static ChannelBuffer decode(ChannelBuffer src,
                                   Base64Dialect dialect)

decode

public static ChannelBuffer decode(ChannelBuffer src,
                                   ChannelBufferFactory bufferFactory)

decode

public static ChannelBuffer decode(ChannelBuffer src,
                                   Base64Dialect dialect,
                                   ChannelBufferFactory bufferFactory)

decode

public static ChannelBuffer decode(ChannelBuffer src,
                                   int off,
                                   int len)

decode

public static ChannelBuffer decode(ChannelBuffer src,
                                   int off,
                                   int len,
                                   Base64Dialect dialect)

decode

public static ChannelBuffer decode(ChannelBuffer src,
                                   int off,
                                   int len,
                                   ChannelBufferFactory bufferFactory)

decode

public static ChannelBuffer decode(ChannelBuffer src,
                                   int off,
                                   int len,
                                   Base64Dialect dialect,
                                   ChannelBufferFactory bufferFactory)

decode4to3

private static int decode4to3(byte[] src,
                              int srcOffset,
                              ChannelBuffer dest,
                              int destOffset,
                              Base64Dialect dialect)