Package com.opencloud.slee.resources.in.datatypes

Class ISO646BCDStringCodec<T>

  • All Implemented Interfaces:
    StringCodec<T>, Serializable
    public final class ISO646BCDStringCodec<T>
extends Object
implements StringCodec<T>
    Implements a StringCodec for the case of printable ASCII/ISO646-US characters encoded by subtracting 32 and encoding the result as BCD in semi-octets.
    See Also:
    Serialized Form

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      String decodeString​(byte[] encoded)
      Decodes a String of characters from a byte array, taking digits from all semi-octets left-to-right in pairs, expecting only values [0,95], adding 32, and converting to the printable ASCII/ISO646-US character of that code.
      String decodeString​(byte[] encoded, StringIndicators indicators)
      Decodes a String of characters from a byte array, taking digits from all semi-octets left-to-right in pairs, expecting only values [0,95], adding 32, and converting to the printable ASCII/ISO646-US character of that code.
      byte[] encodeString​(String string)
      Encodes a String of characters to a byte array, accepting only printable ASCII/ISO646-US characters, and encoding each character in an octet by taking its ASCII code, subtracting 32, and encoding each of the resulting two decimal digits in a semi-octet, with the semi-octets written left-to-right.
      byte[] encodeString​(String string, StringIndicators indicators)
      Encodes a String of characters to a byte array, accepting only printable ASCII/ISO646-US characters, and encoding each character in an octet by taking its ASCII code, subtracting 32, and encoding each of the resulting two decimal digits in a semi-octet, with the semi-octets written left-to-right.
      ISO646BCDStringCodec<T> getLaxDecoder()
      Gets an ISO646BCDStringCodec like the standard one except that decoding invalid characters produces ? characters instead of throwing an exception.
      static <T> ISO646BCDStringCodec<T> getStandardCodec()
      Gets the standard ISO646BCDStringCodec.

    • Method Detail

      • getStandardCodec

        public static <T> ISO646BCDStringCodec<T> getStandardCodec()
        Gets the standard ISO646BCDStringCodec.
        Returns:
        ISO646BCDStringCodec

      • getLaxDecoder

        public ISO646BCDStringCodec<T> getLaxDecoder()
        Gets an ISO646BCDStringCodec like the standard one except that decoding invalid characters produces ? characters instead of throwing an exception. The lax decoder of a lax decoder is itself (idempotent).
        Specified by:
        getLaxDecoder in interface StringCodec<T>
        Returns:
        StringCodec

      • encodeString

        public byte[] encodeString​(String string,
                           StringIndicators indicators)
        Encodes a String of characters to a byte array, accepting only printable ASCII/ISO646-US characters, and encoding each character in an octet by taking its ASCII code, subtracting 32, and encoding each of the resulting two decimal digits in a semi-octet, with the semi-octets written left-to-right. Sets indicators to assist decoding by other StringCodecs.
        Specified by:
        encodeString in interface StringCodec<T>
        Parameters:
        string - the String to be encoded to a byte array
        indicators - the StringIndicators object in which to set the indicators
        Returns:
        the encoded byte array
        Throws:
        UnsupportedDigitException - if a non-printable-ASCII character is found

      • encodeString

        public byte[] encodeString​(String string)
        Encodes a String of characters to a byte array, accepting only printable ASCII/ISO646-US characters, and encoding each character in an octet by taking its ASCII code, subtracting 32, and encoding each of the resulting two decimal digits in a semi-octet, with the semi-octets written left-to-right.
        Specified by:
        encodeString in interface StringCodec<T>
        Parameters:
        string - the String to be encoded to a byte array
        Returns:
        the encoded byte array
        Throws:
        UnsupportedDigitException - if a non-printable-ASCII character is found

      • decodeString

        public String decodeString​(byte[] encoded,
                           StringIndicators indicators)
        Decodes a String of characters from a byte array, taking digits from all semi-octets left-to-right in pairs, expecting only values [0,95], adding 32, and converting to the printable ASCII/ISO646-US character of that code. If a value outside the range [0,95] is found, the standard decoder throws UnsupportedDigitException, while the lax decoder decodes a ? character.
        Specified by:
        decodeString in interface StringCodec<T>
        Parameters:
        encoded - the byte array to be decoded to a String
        indicators - indicators indicator values needed for decoding (ignored)
        Returns:
        the decoded String
        Throws:
        UnsupportedDigitException - if any encoded content is not in range [0,127]

      • decodeString

        public String decodeString​(byte[] encoded)
        Decodes a String of characters from a byte array, taking digits from all semi-octets left-to-right in pairs, expecting only values [0,95], adding 32, and converting to the printable ASCII/ISO646-US character of that code. If a value outside the range [0,95] is found, the standard decoder throws UnsupportedDigitException, while the lax decoder decodes a ? character.
        Specified by:
        decodeString in interface StringCodec<T>
        Parameters:
        encoded - the byte array to be decoded to a String
        Returns:
        the decoded String
        Throws:
        UnsupportedDigitException - if any encoded content is not in range [0,127]