com.lambdaworks.codec
Class Base64

java.lang.Object
  com.lambdaworks.codec.Base64

public class Base64
extends Object

High-performance base64 codec based on the algorithm used in Mikael Grev's MiG Base64. This implementation is designed to handle base64 without line splitting and with optional padding. Alternative character tables may be supplied to the encode and decode methods to implement modified base64 schemes. Decoding assumes correct input, the caller is responsible for ensuring that the input contains no invalid characters.

Author:

Will Glozer

Constructor Summary

Base64()

Method Summary

static byte[]	decode(char[] chars) Decode base64 chars to bytes.
static byte[]	decode(char[] src, int[] table, char pad) Decode base64 chars to bytes using the supplied decode table and padding character.
static char[]	encode(byte[] bytes) Encode bytes to base64 chars, with padding.
static char[]	encode(byte[] bytes, boolean padded) Encode bytes to base64 chars, with optional padding.
static char[]	encode(byte[] src, char[] table, char pad) Encode bytes to base64 chars using the supplied encode table and with optional padding.

Methods inherited from class java.lang.Object

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

Constructor Detail

Base64

public Base64()

Method Detail

decode

public static byte[] decode(char[] chars)

Decode base64 chars to bytes.

Parameters:

chars - Chars to encode.

Returns:

Decoded bytes.

encode

public static char[] encode(byte[] bytes)

Encode bytes to base64 chars, with padding.

Parameters:

bytes - Bytes to encode.

Returns:

Encoded chars.

encode

public static char[] encode(byte[] bytes,
                            boolean padded)

Encode bytes to base64 chars, with optional padding.

Parameters:

bytes - Bytes to encode.

padded - Add padding to output.

Returns:

Encoded chars.

decode

public static byte[] decode(char[] src,
                            int[] table,
                            char pad)

Decode base64 chars to bytes using the supplied decode table and padding character.

Parameters:

src - Base64 encoded data.

table - Decode table.

pad - Padding character.

Returns:

Decoded bytes.

encode

public static char[] encode(byte[] src,
                            char[] table,
                            char pad)

Encode bytes to base64 chars using the supplied encode table and with optional padding.

Parameters:

src - Bytes to encode.

table - Encoding table.

pad - Padding character, or 0 for no padding.

Returns:

Encoded chars.