ewe.io
Class Base64Codec

java.lang.Object
  ewe.util.Errorable
      ewe.io.Base64Codec

Direct Known Subclasses:

Base64Decoder, Base64Encoder

public class Base64Codec

extends Errorable

Field Summary

static String

encodingChars This returns the six bit value of the character.

Fields inherited from class ewe.util.Errorable

error

Constructor Summary

Base64Codec()

Method Summary

int	charToByte(char ch)
protected byte[]	closeEncoding()
ByteArray	decode(byte[] chars, int offset, int length, ByteArray dest)
protected int	decode4(char[] chars, int charOffset, byte[] dest, int destOffset) This decodes four characters into between 1 to 3 bytes.
ByteArray	encode(byte[] bytes, int offset, int length, ByteArray dest)
protected int	encode3(byte[] bytes, int offset, int length, byte[] dest, int destOffset)

Methods inherited from class ewe.util.Errorable

returnError, returnError, returnError

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, toString

Field Detail

encodingChars

public static final String encodingChars

This returns the six bit value of the character. It returns -1 if the character is invalid.

See Also:

Constant Field Values

Constructor Detail

Base64Codec

public Base64Codec()

Method Detail

charToByte

public int charToByte(char ch)

decode4

protected int decode4(char[] chars,
                      int charOffset,
                      byte[] dest,
                      int destOffset)

This decodes four characters into between 1 to 3 bytes. The four characters MUST be valid or '=' signs (for the end of stream padding).

decode

public ByteArray decode(byte[] chars,
                        int offset,
                        int length,
                        ByteArray dest)

encode3

protected int encode3(byte[] bytes,
                      int offset,
                      int length,
                      byte[] dest,
                      int destOffset)

encode

public ByteArray encode(byte[] bytes,
                        int offset,
                        int length,
                        ByteArray dest)

closeEncoding

protected byte[] closeEncoding()