Base64

java.lang.Object

i2p.susi.webmail.encoding.Encoding

i2p.susi.webmail.encoding.Base64

public class Base64extends Encoding

Base64 encoding implementation.

Field Summary
Fields inherited from class Encoding
_log
Modifier and Type
Field
Description
protected final Log
_log
Logger for the encoding subclass.
Constructor Summary
Constructors
Constructor
Description
Base64()
Create a new Base64 encoder.
Method Summary
Modifier and Type
Method
Description
void
decode(InputStream in, Buffer bout)
Decode base64 input into the buffer.
private static byte
decodeByte(int c)
Maps one base64 character to its 6-bit value.
String
encode(byte[] in)
Encode the bytes as base64.
void
encode(InputStream in, Writer strBuf)
More efficient than super.
private static int
encodeByte(int b)
The base64 character for a 6-bit value.
String
getName()
Returns the name of this encoding.
private static int
readIn(InputStream in)
Reads the next byte that is not a space or a line break.
Methods inherited from class Encoding
decode, decode, decode, decode, decode, encode
Modifier and Type
Method
Description
Buffer
decode(byte[] in)
Decode a byte array using default offset and length.
Buffer
decode(byte[] in, int offset, int length)
Decode a portion of a byte array.
Buffer
decode(Buffer in)
Decode a buffer into another buffer.
void
decode(Buffer in, Buffer out)
Decode a buffer into another buffer using the input stream.
Buffer
decode(String str)
Decode a string.
String
encode(String str)
Encode a (UTF-8) String to a ASCII or ISO-8859-1 String.
Methods inherited from class Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- Base64
  public Base64()
  Create a new Base64 encoder.
Method Details
- getName
  public String getName()
  Description copied from class: Encoding
  Returns the name of this encoding.
  Specified by:
  getName in class Encoding
  Returns:
  the encoding name
- encode
  public String encode(byte[] in) throws EncodingException
  Encode the bytes as base64.
  Specified by:
  encode in class Encoding
  Parameters:
  in - the byte array to encode
  Returns:
  Base64-encoded String.
  Throws:
  EncodingException - if encoding fails
- encode
  public void encode(InputStream in, Writer strBuf) throws IOException
  More efficient than super.
  Overrides:
  encode in class Encoding
  Parameters:
  in - the input stream to encode
  strBuf - the writer to write encoded output to
  Throws:
  IOException - if reading from stream or writing fails
  See Also:
  Encoding.encode(String)
- encodeByte
  private static int encodeByte(int b)
  The base64 character for a 6-bit value.
  Parameters:
  b - the 6-bit value to encode
  Returns:
  Encoded single byte.
- decodeByte
  private static byte decodeByte(int c) throws IOException
  Maps one base64 character to its 6-bit value.
  Parameters:
  c - the character read
  Returns:
  the value, 0 for the = padding character
  Throws:
  IOException - if the input ended before a character
- readIn
  private static int readIn(InputStream in) throws IOException
  Reads the next byte that is not a space or a line break.
  Parameters:
  in - the stream to read
  Returns:
  the byte, or -1 at the end of the stream
  Throws:
  IOException - if the read fails
- decode
  public void decode(InputStream in, Buffer bout) throws IOException
  Decode base64 input into the buffer.
  Specified by:
  decode in class Encoding
  Parameters:
  in - the input stream to read data from
  bout - the buffer to write decoded data to
  Throws:
  IOException - if reading from input stream fails
  See Also:
  Encoding.decode(byte[], int, int)

Field Summary

Fields inherited from class Encoding

Constructor Summary

Method Summary

Methods inherited from class Encoding

Methods inherited from class Object

Constructor Details

Method Details

getName

encode

encode

encodeByte

decodeByte

readIn

decode