com.sun.xml.wss.impl.misc

Class Base64

java.lang.Object

com.sun.xml.wss.impl.misc.Base64

public class Base64
extends Object

Implementation of MIME's Base64 encoding and decoding conversions. Optimized code. (raw version taken from oreilly.jonathan.util, and currently com.sun.org.apache.xerces.internal.ds.util.Base64)

Author:

Raul Benito(Of the xerces copy, and little adaptations)., Anli Shundi, Christian Geuer-Pollmann

See Also:

RFC 2045, org.apache.xml.security.transforms.implementations.TransformBase64Decode

Field Summary

Fields

Modifier and Type	Field and Description
static int	BASE64DEFAULTLENGTH Field BASE64DEFAULTLENGTH

Method Summary

Modifier and Type	Method and Description
static byte[]	decode(byte[] base64Data)
static void	decode(byte[] base64Data, OutputStream os) Decodes Base64 data into outputstream
static void	decode(InputStream is, OutputStream os) Decodes Base64 data into outputstream
static byte[]	decode(String encoded) Decodes Base64 data into octects
protected static byte[]	decodeInternal(byte[] base64Data)
static String	encode(byte[] binaryData)
static String	encode(byte[] binaryData, int length)
char[]	encodeData(byte[] binaryData) Encodes hex octects into Base64
static char[]	encodeData(byte[] binaryData, int length) Encode a byte array in Base64 format and return an optionally wrapped line.
static void	encodeToStream(byte[] binaryData, int offset, int length, OutputStream stream)
static void	encodeToStream(byte[] binaryData, int length, OutputStream stream)
static void	encodeToStream(ByteArray binaryData, int length, OutputStream stream)
protected static boolean	isPad(byte octect)
protected static boolean	isWhiteSpace(byte octect)
protected static int	removeWhiteSpace(byte[] 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

BASE64DEFAULTLENGTH

public static final int BASE64DEFAULTLENGTH

Field BASE64DEFAULTLENGTH

See Also:

Constant Field Values

Method Detail

isWhiteSpace

protected static final boolean isWhiteSpace(byte octect)

isPad

protected static final boolean isPad(byte octect)

encodeData

public char[] encodeData(byte[] binaryData)

Encodes hex octects into Base64

Parameters:

binaryData - Array containing binaryData

Returns:

Encoded Base64 array

encodeData

public static char[] encodeData(byte[] binaryData,
                                int length)

Encode a byte array in Base64 format and return an optionally wrapped line.

Parameters:

binaryData - byte[] data to be encoded

length - int length of wrapped lines; No wrapping if less than 4.

Returns:

a String with encoded data

encode

public static String encode(byte[] binaryData,
                            int length)

encode

public static String encode(byte[] binaryData)

encodeToStream

public static void encodeToStream(byte[] binaryData,
                                  int length,
                                  OutputStream stream)
                           throws IOException

Throws:

IOException

encodeToStream

public static void encodeToStream(byte[] binaryData,
                                  int offset,
                                  int length,
                                  OutputStream stream)
                           throws IOException

Throws:

IOException

encodeToStream

public static void encodeToStream(ByteArray binaryData,
                                  int length,
                                  OutputStream stream)
                           throws IOException

Throws:

IOException

decode

public static final byte[] decode(String encoded)
                           throws org.apache.xml.security.exceptions.Base64DecodingException

Decodes Base64 data into octects

Parameters:

encoded - Byte array containing Base64 data

Returns:

Array containind decoded data.

Throws:

org.apache.xml.security.exceptions.Base64DecodingException

decode

public static final byte[] decode(byte[] base64Data)
                           throws org.apache.xml.security.exceptions.Base64DecodingException

Throws:

org.apache.xml.security.exceptions.Base64DecodingException

decodeInternal

protected static final byte[] decodeInternal(byte[] base64Data)
                                      throws org.apache.xml.security.exceptions.Base64DecodingException

Throws:

org.apache.xml.security.exceptions.Base64DecodingException

decode

public static final void decode(byte[] base64Data,
                                OutputStream os)
                         throws org.apache.xml.security.exceptions.Base64DecodingException,
                                IOException

Decodes Base64 data into outputstream

Parameters:

base64Data - Byte array containing Base64 data

os - the outputstream

Throws:

IOException

org.apache.xml.security.exceptions.Base64DecodingException

decode

public static final void decode(InputStream is,
                                OutputStream os)
                         throws org.apache.xml.security.exceptions.Base64DecodingException,
                                IOException

Decodes Base64 data into outputstream

Parameters:

is - containing Base64 data

os - the outputstream

Throws:

IOException

org.apache.xml.security.exceptions.Base64DecodingException

removeWhiteSpace

protected static int removeWhiteSpace(byte[] data)

remove WhiteSpace from MIME containing encoded Base64 data.

Parameters:

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

Returns:

the new length