Package org.castor.core.util

Class HexDecoder

  • public final class HexDecoder
extends java.lang.Object
    Hex encoder/decoder implementation (borrowed from BouncyCastle=.
    Since:
    1.1.1
    Version:
    $Revision$
    Author:
    Johan Lindquist

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.String DATA_TYPE
      Identifies the data type supported by this decoder.
      protected static byte[] DECODING_TABLE
      Decoding table.
      protected static byte[] ENCODING_TABLE
      Encoding table.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static int decode​(byte[] data, int off, int length, java.io.OutputStream out)
      Decodes the Hex encoded byte data writing it to the given output stream, whitespace characters will be ignored.
      static byte[] decode​(java.lang.String data)
      Decodes the HEX input data producing a output stream.
      static int decode​(java.lang.String data, java.io.OutputStream out)
      Decodes the Hex encoded String data writing it to the given output stream, whitespace characters will be ignored.
      static java.lang.String encode​(byte[] data)
      Encodes the input data producing a Hex output stream.
      static int encode​(byte[] data, int off, int length, java.io.OutputStream out)
      Encodes the input data producing a Hex output stream.
      protected static void initialiseDecodingTable()
      Initialize the decoding table.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • DATA_TYPE

        public static final java.lang.String DATA_TYPE
        Identifies the data type supported by this decoder.
        See Also:
        Constant Field Values

      • ENCODING_TABLE

        protected static final byte[] ENCODING_TABLE
        Encoding table.

      • DECODING_TABLE

        protected static final byte[] DECODING_TABLE
        Decoding table.

    • Method Detail

      • initialiseDecodingTable

        protected static void initialiseDecodingTable()
        Initialize the decoding table.

      • encode

        public static int encode​(byte[] data,
                         int off,
                         int length,
                         java.io.OutputStream out)
                  throws java.io.IOException
        Encodes the input data producing a Hex output stream.
        Parameters:
        data - The input data to be HEX encoded
        off - Initiak offset
        length - Initial length of the input data array
        out - The OutputStream instance holding the encoded input data.
        Returns:
        the number of bytes produced.
        Throws:
        java.io.IOException - If encoding fails.

      • decode

        public static int decode​(byte[] data,
                         int off,
                         int length,
                         java.io.OutputStream out)
                  throws java.io.IOException
        Decodes the Hex encoded byte data writing it to the given output stream, whitespace characters will be ignored.
        Parameters:
        data - The data to be encoded
        off - Initial offset.
        length - Initial length
        out - The OutputStream instance
        Returns:
        the number of bytes produced.
        Throws:
        java.io.IOException - If encoding failed.

      • decode

        public static int decode​(java.lang.String data,
                         java.io.OutputStream out)
                  throws java.io.IOException
        Decodes the Hex encoded String data writing it to the given output stream, whitespace characters will be ignored.
        Parameters:
        data - The data to be encoded
        out - The OutputStream instance
        Returns:
        the number of bytes produced.
        Throws:
        java.io.IOException - If encoding failed.

      • encode

        public static java.lang.String encode​(byte[] data)
        Encodes the input data producing a Hex output stream.
        Parameters:
        data - Input data to encode.
        Returns:
        the number of bytes produced.

      • decode

        public static byte[] decode​(java.lang.String data)
        Decodes the HEX input data producing a output stream.
        Parameters:
        data - Input data to be decoded.
        Returns:
        A byte array representing the decoded input data.