Package org.apache.vinci.transport.util

Class Base64Converter

java.lang.Object

org.apache.vinci.transport.util.Base64Converter

public class Base64Converter
extends java.lang.Object

Provides utility methods for Binary <=> Base64 conversion.

Field Summary

Fields

Modifier and Type	Field	Description
private static byte[]	B64_CODE
static int	LINE_LENGTH	If you ask for line-breaks, this is the maximum line length used.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Base64Converter()	Utility class not meant to be instantiated.

Method Summary

Modifier and Type	Method	Description
private static byte	b64codes(int which)
private static int	b64decodeDigit(int c)
private static int	b64decodeOctet(byte[] in, int in_offset, byte[] out, int out_offset, int max_offset)
private static void	b64encodeOctet(byte[] to, int to_offset, byte[] from, int from_offset, int count)
private static boolean	b64validDigit(byte a)
static int	calculateBase64OutputSize(int input_size, boolean line_breaks)	Calculates the size of the resulting Base64 string returned by this class for a binary byte array of the specified length.
static int	calculateBinaryOutputSize(byte[] input, int input_size)	Calculate the number of bytes encoded by a given Base64 input.
private static int	consumeInvalidDigits(byte[] in, int off, int max_offset)
static java.lang.String	convertBase64StringToString(java.lang.String base64)
static byte[]	convertBase64ToBinary(byte[] input)
static byte[]	convertBase64ToBinary(byte[] input, int input_size)
static byte[]	convertBinaryToBase64(byte[] from)
static byte[]	convertBinaryToBase64(byte[] from, int count, boolean line_breaks)
static java.lang.String	convertStringToBase64String(java.lang.String convert_me)

Methods inherited from class java.lang.Object

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

Field Detail

LINE_LENGTH

public static final int LINE_LENGTH

If you ask for line-breaks, this is the maximum line length used.

See Also:

Constant Field Values

B64_CODE

private static final byte[] B64_CODE

Constructor Detail

Base64Converter

private Base64Converter()

Utility class not meant to be instantiated.

Method Detail

convertBinaryToBase64

public static byte[] convertBinaryToBase64(byte[] from)

Parameters:

from - -

Returns:

-

convertStringToBase64String

public static java.lang.String convertStringToBase64String(java.lang.String convert_me)

Parameters:

convert_me - -

Returns:

-

convertBase64StringToString

public static java.lang.String convertBase64StringToString(java.lang.String base64)
                                                    throws Base64FormatException

Parameters:

base64 - -

Returns:

-

Throws:

Base64FormatException - -

convertBinaryToBase64

public static byte[] convertBinaryToBase64(byte[] from,
                                           int count,
                                           boolean line_breaks)

Parameters:

from - -

count - -

line_breaks - -

Returns:

-

calculateBase64OutputSize

public static int calculateBase64OutputSize(int input_size,
                                            boolean line_breaks)

Calculates the size of the resulting Base64 string returned by this class for a binary byte array of the specified length. Includes carriage returns and all.

Parameters:

input_size - -

line_breaks - -

Returns:

-

convertBase64ToBinary

public static byte[] convertBase64ToBinary(byte[] input)
                                    throws Base64FormatException

Parameters:

input - -

Returns:

-

Throws:

Base64FormatException - -

convertBase64ToBinary

public static byte[] convertBase64ToBinary(byte[] input,
                                           int input_size)
                                    throws Base64FormatException

Parameters:

input - -

input_size - -

Returns:

-

Throws:

Base64FormatException - -

calculateBinaryOutputSize

public static int calculateBinaryOutputSize(byte[] input,
                                            int input_size)
                                     throws Base64FormatException

Calculate the number of bytes encoded by a given Base64 input.

Parameters:

input - -

input_size - -

Returns:

-

Throws:

Base64FormatException - -

consumeInvalidDigits

private static int consumeInvalidDigits(byte[] in,
                                        int off,
                                        int max_offset)
                                 throws Base64FormatException

Throws:

Base64FormatException

b64decodeOctet

private static int b64decodeOctet(byte[] in,
                                  int in_offset,
                                  byte[] out,
                                  int out_offset,
                                  int max_offset)
                           throws Base64FormatException

Throws:

Base64FormatException

b64decodeDigit

private static int b64decodeDigit(int c)

b64validDigit

private static boolean b64validDigit(byte a)

b64encodeOctet

private static void b64encodeOctet(byte[] to,
                                   int to_offset,
                                   byte[] from,
                                   int from_offset,
                                   int count)

b64codes

private static byte b64codes(int which)