org.apache.xerces.impl.dv.util

Class 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 1.8 2003/05/08 20:11:55 elena Exp $

Authors:
Jeffrey Rodriguez
Sandy Gao

Method Summary

static byte[]
decode(String encoded)
Decodes Base64 data into octects
static 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.

Method Details

decode

public static byte[] decode(String encoded)
Decodes Base64 data into octects

Parameters:

Returns:
Array containind decoded data.


encode

public static String encode(byte[] binaryData)
Encodes hex octects into Base64

Parameters:
binaryData - Array containing binaryData

Returns:
Encoded Base64 array


isBase64

protected static boolean isBase64(char octect)


isData

protected static boolean isData(char octect)


isPad

protected static boolean isPad(char octect)


isWhiteSpace

protected static boolean isWhiteSpace(char octect)


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


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