net.lecousin.framework.io.encoding

Class Base64

java.lang.Object

net.lecousin.framework.io.encoding.Base64

public final class Base64
extends Object

Utility methods to encode and decode base 64.

Method Summary

Modifier and Type	Method and Description
static byte[]	decode(byte[] input) Decode the given input.
static byte[]	decode(byte[] input, int offset, int length) Decode the given input.
static byte[]	decode(ByteBuffer input) Decode the given input.
static byte[]	decode(CharBuffer input) Decode the given input.
static byte[]	decode(String input) Decode the given input.
static int	decode4BytesBase64(byte[] inputBuffer, byte[] outputBuffer) Decode the 4 input bytes of the inputBuffer, into the outputBuffer that must have at least 3 bytes.
static int	decode4BytesBase64(byte[] inputBuffer, byte[] outputBuffer, int outputOffset) Decode the 4 input bytes of the inputBuffer, into the outputBuffer that must have at least 3 bytes remaining.
static int	decode4BytesBase64(byte[] inputBuffer, int inputOffset, byte[] outputBuffer, int outputOffset) Decode 4 input bytes of the inputBuffer, into the outputBuffer that must have at least 3 bytes remaining.
static int	decode4BytesBase64(ByteBuffer inputBuffer, byte[] outputBuffer, int outputOffset) Decode the 4 input bytes of the inputBuffer, into the outputBuffer that must have at least 3 bytes remaining.
static int	decode4BytesBase64(CharBuffer inputBuffer, byte[] outputBuffer, int outputOffset) Decode the 4 input bytes of the inputBuffer, into the outputBuffer that must have at least 3 bytes remaining.
static int	decodeBase64Char(byte b) Convert a base 64 character into its integer value.
static void	encode3BytesBase64(byte[] inputBuffer, int inputBufferOffset, byte[] outputBuffer, int outputBufferOffset) Encode the 3 bytes from inputBuffer, into 4 bytes in the outputBuffer.
static void	encode3BytesBase64(byte[] inputBuffer, int inputBufferOffset, char[] outputBuffer, int outputBufferOffset) Encode the 3 bytes from inputBuffer, into 4 bytes in the outputBuffer.
static IAsync<IOException>	encodeAsync(IO.Readable.Buffered io, ICharacterStream.WriterAsync writer) Encode the Readable IO into the Writer.
static IAsync<IOException>	encodeAsync(IO.Readable.Buffered io, IO.WriterAsync writer) Encode the Readable IO into the Writer.
static IAsync<IOException>	encodeAsync(IO.Readable io, ICharacterStream.WriterAsync writer) Encode the Readable IO into the Writer.
static IAsync<IOException>	encodeAsync(IO.Readable io, IO.WriterAsync writer) Encode the Readable IO into the Writer.
static byte[]	encodeBase64(byte[] input) Encode the given bytes into base 64.
static byte[]	encodeBase64(byte[] input, int offset, int len) Encode the given bytes into base 64.
static byte	encodeBase64(int v) Encode the given integer (from 0 to 63) into its base 64 character.
static char[]	encodeBase64ToChars(byte[] input, int offset, int len) Encode the given bytes into base 64.
static void	encodeUpTo3BytesBase64(byte[] inputBuffer, int inputBufferOffset, byte[] outputBuffer, int outputBufferOffset, int nbInput) Encode 1 to 3 bytes.
static void	encodeUpTo3BytesBase64(byte[] inputBuffer, int inputBufferOffset, char[] outputBuffer, int outputBufferOffset, int nbInput) Encode 1 to 3 bytes.

Methods inherited from class java.lang.Object

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

Method Detail

decode4BytesBase64

public static int decode4BytesBase64(byte[] inputBuffer,
                                     byte[] outputBuffer)
                              throws IOException

Decode the 4 input bytes of the inputBuffer, into the outputBuffer that must have at least 3 bytes.

Throws:

IOException

decode4BytesBase64

public static int decode4BytesBase64(byte[] inputBuffer,
                                     byte[] outputBuffer,
                                     int outputOffset)
                              throws IOException

Decode the 4 input bytes of the inputBuffer, into the outputBuffer that must have at least 3 bytes remaining.

Throws:

IOException

decode4BytesBase64

public static int decode4BytesBase64(byte[] inputBuffer,
                                     int inputOffset,
                                     byte[] outputBuffer,
                                     int outputOffset)
                              throws IOException

Decode 4 input bytes of the inputBuffer, into the outputBuffer that must have at least 3 bytes remaining.

Throws:

IOException

decode4BytesBase64

public static int decode4BytesBase64(ByteBuffer inputBuffer,
                                     byte[] outputBuffer,
                                     int outputOffset)
                              throws IOException

Decode the 4 input bytes of the inputBuffer, into the outputBuffer that must have at least 3 bytes remaining.

Throws:

IOException

decode4BytesBase64

public static int decode4BytesBase64(CharBuffer inputBuffer,
                                     byte[] outputBuffer,
                                     int outputOffset)
                              throws IOException

Decode the 4 input bytes of the inputBuffer, into the outputBuffer that must have at least 3 bytes remaining.

Throws:

IOException

decodeBase64Char

public static int decodeBase64Char(byte b)
                            throws IOException

Convert a base 64 character into its integer value.

Throws:

IOException

decode

public static byte[] decode(byte[] input)
                     throws IOException

Decode the given input.

Throws:

IOException

decode

public static byte[] decode(byte[] input,
                            int offset,
                            int length)
                     throws IOException

Decode the given input.

Throws:

IOException

decode

public static byte[] decode(ByteBuffer input)
                     throws IOException

Decode the given input.

Throws:

IOException

decode

public static byte[] decode(CharBuffer input)
                     throws IOException

Decode the given input.

Throws:

IOException

decode

public static byte[] decode(String input)
                     throws IOException

Decode the given input.

Throws:

IOException

encode3BytesBase64

public static void encode3BytesBase64(byte[] inputBuffer,
                                      int inputBufferOffset,
                                      byte[] outputBuffer,
                                      int outputBufferOffset)

Encode the 3 bytes from inputBuffer, into 4 bytes in the outputBuffer.

encode3BytesBase64

public static void encode3BytesBase64(byte[] inputBuffer,
                                      int inputBufferOffset,
                                      char[] outputBuffer,
                                      int outputBufferOffset)

Encode the 3 bytes from inputBuffer, into 4 bytes in the outputBuffer.

encodeUpTo3BytesBase64

public static void encodeUpTo3BytesBase64(byte[] inputBuffer,
                                          int inputBufferOffset,
                                          byte[] outputBuffer,
                                          int outputBufferOffset,
                                          int nbInput)

Encode 1 to 3 bytes.

encodeUpTo3BytesBase64

public static void encodeUpTo3BytesBase64(byte[] inputBuffer,
                                          int inputBufferOffset,
                                          char[] outputBuffer,
                                          int outputBufferOffset,
                                          int nbInput)

Encode 1 to 3 bytes.

encodeBase64

public static byte encodeBase64(int v)
                         throws IOException

Encode the given integer (from 0 to 63) into its base 64 character.

Throws:

IOException

encodeBase64

public static byte[] encodeBase64(byte[] input)

Encode the given bytes into base 64.

encodeBase64

public static byte[] encodeBase64(byte[] input,
                                  int offset,
                                  int len)

Encode the given bytes into base 64.

encodeBase64ToChars

public static char[] encodeBase64ToChars(byte[] input,
                                         int offset,
                                         int len)

Encode the given bytes into base 64.

encodeAsync

public static IAsync<IOException> encodeAsync(IO.Readable io,
                                              IO.WriterAsync writer)

Encode the Readable IO into the Writer.

encodeAsync

public static IAsync<IOException> encodeAsync(IO.Readable.Buffered io,
                                              IO.WriterAsync writer)

Encode the Readable IO into the Writer.

encodeAsync

public static IAsync<IOException> encodeAsync(IO.Readable io,
                                              ICharacterStream.WriterAsync writer)

Encode the Readable IO into the Writer.

encodeAsync

public static IAsync<IOException> encodeAsync(IO.Readable.Buffered io,
                                              ICharacterStream.WriterAsync writer)

Encode the Readable IO into the Writer.