org.objectweb.cjdbc.common.stream.encoding
Class Base64

java.lang.Object
  org.objectweb.cjdbc.common.stream.encoding.Base64

public final class Base64

extends java.lang.Object

This class provides encode/decode for RFC 2045 Base64 as defined by RFC 2045, N. Freed and N. Borenstein. RFC 2045: Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies. Reference 1996 Available at: http://www.ietf.org/rfc/rfc2045.txt This class is used by XML Schema binary format validation This implementation does not encode/decode streaming data. You need the data that you will encode/decode already on a byte arrray.

Version:

$Id: Base64.java,v 1.4 2005/06/18 02:47:39 cecchet Exp $

Author:

Jeffrey Rodriguez, Sandy Gao

Field Summary

private static byte[]	BASE64_ALPHABET
private static int	BASELENGTH
private static int	EIGHTBIT
private static boolean	F_DEBUG
private static int	FOURBYTE
private static char[]	LOOKUP_BASE64_ALPHABET
private static int	LOOKUPLENGTH
private static char	PAD
private static int	SIGN
private static int	SIXTEENBIT
private static int	TWENTYFOURBITGROUP

Constructor Summary

Base64()

Method Summary

static byte[]	decode(java.lang.String encoded) Decodes Base64 data into octects
static java.lang.String	encode(byte[] binaryData) Encodes hex octects into Base64
protected static boolean	isBase64(char octect)
protected static boolean	isData(char octect)
protected static boolean	isPad(char octect)
protected static boolean	isWhiteSpace(char octect)
protected static int	removeWhiteSpace(char[] data) remove WhiteSpace from MIME containing encoded Base64 data.

Methods inherited from class java.lang.Object

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

Field Detail

BASELENGTH

private static final int BASELENGTH

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Constant Field Values

LOOKUPLENGTH

private static final int LOOKUPLENGTH

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Constant Field Values

TWENTYFOURBITGROUP

private static final int TWENTYFOURBITGROUP

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Constant Field Values

EIGHTBIT

private static final int EIGHTBIT

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Constant Field Values

SIXTEENBIT

private static final int SIXTEENBIT

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Constant Field Values

FOURBYTE

private static final int FOURBYTE

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Constant Field Values

SIGN

private static final int SIGN

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Constant Field Values

PAD

private static final char PAD

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Constant Field Values

F_DEBUG

private static final boolean F_DEBUG

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Constant Field Values

BASE64_ALPHABET

private static final byte[] BASE64_ALPHABET

LOOKUP_BASE64_ALPHABET

private static final char[] LOOKUP_BASE64_ALPHABET

Constructor Detail

Base64

public Base64()

Method Detail

isWhiteSpace

protected static boolean isWhiteSpace(char octect)

isPad

protected static boolean isPad(char octect)

isData

protected static boolean isData(char octect)

isBase64

protected static boolean isBase64(char octect)

encode

public static java.lang.String encode(byte[] binaryData)

Encodes hex octects into Base64

Parameters:

binaryData - Array containing binaryData

Returns:

Encoded Base64 array

decode

public static byte[] decode(java.lang.String encoded)

Decodes Base64 data into octects

Parameters:

encoded - String encoded in Base64

Returns:

Byte array containing decoded data.

removeWhiteSpace

protected static int removeWhiteSpace(char[] data)

remove WhiteSpace from MIME containing encoded Base64 data.

Parameters:

data - the byte array of base64 data (with WS)

Returns:

the new length