Package org.jboss.resteasy.util
Class Hex
- java.lang.Object
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- org.jboss.resteasy.util.Hex
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public class Hex extends java.lang.Object
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Field Summary
Fields Modifier and Type Field Description private static char[]
DIGITS
Used building output as Hex
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Constructor Summary
Constructors Constructor Description Hex()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static byte[]
decodeHex(java.lang.String str)
Converts an array of characters representing hexidecimal values into an array of bytes of those same values.static java.lang.String
encodeHex(byte[] data)
Converts an array of bytes into an array of characters representing the hexidecimal values of each byte in order.protected static int
toDigit(char ch, int index)
Converts a hexadecimal character to an integer.
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Method Detail
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decodeHex
public static byte[] decodeHex(java.lang.String str)
Converts an array of characters representing hexidecimal values into an array of bytes of those same values. The returned array will be half the length of the passed array, as it takes two characters to represent any given byte. An exception is thrown if the passed char array has an odd number of elements.- Parameters:
data
- An array of characters containing hexidecimal digits- Returns:
- A byte array containing binary data decoded from the supplied char array.
- Throws:
DecoderException
- Thrown if an odd number or illegal of characters is supplied
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toDigit
protected static int toDigit(char ch, int index)
Converts a hexadecimal character to an integer.- Parameters:
ch
- A character to convert to an integer digitindex
- The index of the character in the source- Returns:
- An integer
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encodeHex
public static java.lang.String encodeHex(byte[] data)
Converts an array of bytes into an array of characters representing the hexidecimal values of each byte in order. The returned array will be double the length of the passed array, as it takes two characters to represent any given byte.- Parameters:
data
- a byte[] to convert to Hex characters- Returns:
- A char[] containing hexidecimal characters
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