Package org.apache.vinci.transport.util
Class Base64Converter
- java.lang.Object
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- org.apache.vinci.transport.util.Base64Converter
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public class Base64Converter extends java.lang.Object
Provides utility methods for Binary <=> Base64 conversion.
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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.
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Constructor Summary
Constructors Modifier Constructor Description private
Base64Converter()
Utility class not meant to be instantiated.
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Method Summary
All Methods Static Methods Concrete Methods 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)
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Field Detail
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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
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B64_CODE
private static final byte[] B64_CODE
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Method Detail
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convertBinaryToBase64
public static byte[] convertBinaryToBase64(byte[] from)
- Parameters:
from
- -- Returns:
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convertStringToBase64String
public static java.lang.String convertStringToBase64String(java.lang.String convert_me)
- Parameters:
convert_me
- -- Returns:
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convertBase64StringToString
public static java.lang.String convertBase64StringToString(java.lang.String base64) throws Base64FormatException
- Parameters:
base64
- -- Returns:
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- Throws:
Base64FormatException
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convertBinaryToBase64
public static byte[] convertBinaryToBase64(byte[] from, int count, boolean line_breaks)
- Parameters:
from
- -count
- -line_breaks
- -- Returns:
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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:
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convertBase64ToBinary
public static byte[] convertBase64ToBinary(byte[] input) throws Base64FormatException
- Parameters:
input
- -- Returns:
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- Throws:
Base64FormatException
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convertBase64ToBinary
public static byte[] convertBase64ToBinary(byte[] input, int input_size) throws Base64FormatException
- Parameters:
input
- -input_size
- -- Returns:
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- Throws:
Base64FormatException
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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:
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- Throws:
Base64FormatException
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consumeInvalidDigits
private static int consumeInvalidDigits(byte[] in, int off, int max_offset) throws Base64FormatException
- Throws:
Base64FormatException
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b64decodeOctet
private static int b64decodeOctet(byte[] in, int in_offset, byte[] out, int out_offset, int max_offset) throws Base64FormatException
- Throws:
Base64FormatException
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b64decodeDigit
private static int b64decodeDigit(int c)
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b64validDigit
private static boolean b64validDigit(byte a)
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b64encodeOctet
private static void b64encodeOctet(byte[] to, int to_offset, byte[] from, int from_offset, int count)
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b64codes
private static byte b64codes(int which)
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