Module cl.netswitch.iso
Package cl.netswitch.iso.iso8583

Class IsoField<M,T>

java.lang.Object
cl.netswitch.iso.iso8583.IsoField<M,T>
Type Parameters:
M - the type of the ISO message.
T - the type of the field value.
Direct Known Subclasses:
IsoBinF1, IsoBinF2, IsoBinF4, IsoBinF8, IsoBinFL, IsoBinH8, IsoBinV2, IsoBinV3, IsoDecFL, IsoDecFS, IsoHexFL, IsoHexV2, IsoHexV3, IsoNumF10, IsoNumF12, IsoNumF16, IsoNumF2, IsoNumF3, IsoNumF4, IsoNumF5, IsoNumF6, IsoNumF7, IsoNumF8, IsoNumF9, IsoNumFS8, IsoNumFX, IsoNumV2I, IsoNumV2L, IsoNumV2X, IsoStrFL, IsoStrV2, IsoStrV3, IsoStrV4
public abstract class IsoField<M,T> extends Object
Definition of a data element of an ISO message.

  • Constructor Details

    • IsoField

      public IsoField(int index, String format, int minlen, int maxlen, Class<T> vtype, String name)
      Constructs a new IsoField instance.
      Parameters:
      index - the index of this field.
      format - the format of this field.
      minlen - min number of elements of this field value.
      maxlen - max number of elements of this field value.
      vtype - the class type of this field value.
      name - the name of this field.
      Throws:
      NullPointerException - if an argument is null.
      IllegalArgumentException - if an argument is invalid.

  • Method Details

    • getIndex

      public final int getIndex()
      Returns the index of this field.
      Returns:
      the index of this field.

    • getFormat

      public final String getFormat()
      Returns the name of the format of this field.
      Returns:
      the name of the format of this field.

    • getMinLength

      public final int getMinLength()
      Returns the minimum length of this field.
      Returns:
      the minimum length of this field.

    • getMaxLength

      public final int getMaxLength()
      Returns the maximum length of this field.
      Returns:
      the maximum length of this field.

    • getName

      public final String getName()
      Returns the name of this field.
      Returns:
      the name of this field.

    • getType

      public final Class<T> getType()
      Returns the type of the value of this field.
      Returns:
      the type of the value of this field.

    • getObfuscate

      public final IsoObfuscate getObfuscate()
      Returns the obfuscate option of this field.
      Returns:
      the obfuscate option of this field.

    • setObfuscate

      public final void setObfuscate(IsoObfuscate obfuscate)
      Changes the obfuscate option of this field.
      Parameters:
      obfuscate - the new obfuscate option.
      Throws:
      NullPointerException - if obfuscate is null.

    • decodeAndSetValue

      public final T decodeAndSetValue(ByteBuffer buffer, M message)
      Decodes the field value from buffer and stores value in message.
      Parameters:
      buffer - the buffer containing the encoded field value.
      message - the message where the field value is stored.
      Returns:
      the non-null field value decoded from buffer.
      Throws:
      NullPointerException - if an argument is null.
      IsoException - if an expected decoder error occurs.

    • setValue

      public final void setValue(M message, T value)
      Changes the value of this field in the supplied message.
      Parameters:
      message - the message to be modified.
      value - the new value of this field (can be null).
      Throws:
      NullPointerException - if message is null.
      IllegalArgumentException - if value is invalid.
      IsoException - if another error occurs changing the value.

    • decodeValue

      public abstract T decodeValue(ByteBuffer buffer)
      Decodes the value of this field from the supplied byte buffer.
      Parameters:
      buffer - the buffer containing the encoded field value.
      Returns:
      the value decoded from supplied byte buffer.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • getValueAndEncode

      public final T getValueAndEncode(M message, ByteArray barray)
      Gets the field value from message and encodes into supplied byte array.
      Parameters:
      message - the message that contains the field value.
      barray - the byte array containing encoded field values.
      Returns:
      the field value that was encoded into the byte array.
      Throws:
      NullPointerException - if an argument is null.
      ClassCastException - if the field value is of wrong type.
      IsoException - if the field value in message is invalid.

    • getValue

      public final T getValue(M message)
      Returns the value of this field from the supplied message.
      Parameters:
      message - the message that contains the field value.
      Returns:
      the value of this field read from supplied message.
      Throws:
      NullPointerException - if message is null.
      ClassCastException - if the retrieved value is invalid.
      IsoException - if another error occurs getting the value.

    • encodeValue

      public abstract void encodeValue(T value, ByteArray barray)
      Encodes the value of this field into the supplied byte array.
      Parameters:
      value - the field value to be encoded into byte array.
      barray - the byte array containing encoded field values.
      Throws:
      NullPointerException - if an argument is null.
      IsoException - if value is invalid.

    • writeMessageValue

      public final void writeMessageValue(M message, IsoWriter<M> writer)
      Writes the field value contained in message using writer.
      Parameters:
      message - the message that contains the field value.
      writer - the writer used to write the field value.
      Throws:
      NullPointerException - if an argument is null.
      ClassCastException - if type of field value is invalid.
      IsoException - if another error occurs.

    • writeValue

      protected void writeValue(T value, IsoWriter<M> writer)
      Writes the supplied field value using the specified writer.
      Parameters:
      value - the field value to write with writer.
      writer - the writer used to write the field value.
      Throws:
      NullPointerException - if an argument is null.
      IsoException - if another error occurs.

    • fieldError

      public final String fieldError(String error)
      Returns a string used to build exception related to this field.
      Parameters:
      error - a description of the error condition found.
      Returns:
      a string used to build errors related to this field.

    • rightTrim

      public final String rightTrim(String str)
      Returns the supplied string with trailing spaces removed.
      Parameters:
      str - the string to be inspected.
      Returns:
      the supplied string with trailing spaces removed.
      Throws:
      NullPointerException - if str is null.

    • readFieldBuffer

      public final ByteBuffer readFieldBuffer(ByteBuffer buffer, int length)
      Returns a ByteBuffer with the bytes of the specified length.
      Parameters:
      buffer - the buffer containing the variable-length field value.
      length - the number of bytes to read in buffer.
      Returns:
      a ByteBuffer with the byte array of the specified length.
      Throws:
      NullPointerException - if buffer is null.
      BufferUnderflowException - if buffer is missing bytes.

    • readDigit

      public final byte readDigit(ByteBuffer buffer)
      Returns a byte with the value of a numeric digit.
      Parameters:
      buffer - the buffer containing the digit.
      Returns:
      a byte with the value of a numeric digit.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • readNumber1

      public final byte readNumber1(ByteBuffer buffer)
      Returns a byte with the value of a 1 digit number.
      Parameters:
      buffer - the buffer containing the digit.
      Returns:
      a byte with the value of a 1 digit number.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • writeNumber1

      public final void writeNumber1(byte value, ByteArray barray)
      Writes 1 digit of supplied byte value to a byte array.
      Parameters:
      value - the byte value to be written to barray.
      barray - the byte array where the digit are written.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • readNumber2

      public final byte readNumber2(ByteBuffer buffer)
      Returns a byte with the value of a 2 digit number.
      Parameters:
      buffer - the buffer containing the digits.
      Returns:
      a byte with the value of a 2 digit number.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • writeNumber2

      public final int writeNumber2(byte value, ByteArray barray)
      Writes 2 digits of supplied byte value to a byte array.
      Parameters:
      value - the byte value to be written to barray.
      barray - the byte array where the digits are written.
      Returns:
      the absolute index where the byte value was written.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • writeNumberLL

      public final void writeNumberLL(ByteArray barray, int position)
      Writes 2 digits of field length to a byte array at position.
      Parameters:
      barray - the byte array where the digits are written.
      position - the absolute position to write the field length.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • readNumber3

      public final short readNumber3(ByteBuffer buffer)
      Returns a short with the value of a 3 digit number.
      Parameters:
      buffer - the buffer containing the digits.
      Returns:
      a short with the value of a 3 digit number.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • writeNumber3

      public final int writeNumber3(short value, ByteArray barray)
      Writes 3 digits of a short value to a byte array.
      Parameters:
      value - the short value to be written to barray.
      barray - the byte array where the digits are written.
      Returns:
      the absolute index where the short value was written.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • writeNumberLLL

      public final void writeNumberLLL(ByteArray barray, int position)
      Writes 3 digits of field length to a byte array at position.
      Parameters:
      barray - the byte array where the digits are written.
      position - the absolute position to write the field length.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • readNumber4

      public final short readNumber4(ByteBuffer buffer)
      Returns a short with the value of a 4 digit number.
      Parameters:
      buffer - the buffer containing the digits.
      Returns:
      a short with the value of a 4 digit number.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • writeNumber4

      public final int writeNumber4(short value, ByteArray barray)
      Writes 4 digits of supplied short value to a byte array.
      Parameters:
      value - the short value to be written to barray.
      barray - the byte array where the digits are written.
      Returns:
      the absolute index where the short value was written.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • writeNumberLLLL

      public final void writeNumberLLLL(ByteArray barray, int position)
      Writes 4 digits of field length to a byte array at position.
      Parameters:
      barray - the byte array where the digits are written.
      position - the absolute position to write the field length.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • readNumber5

      public final int readNumber5(ByteBuffer buffer)
      Returns an integer with the value of a 5 digit number.
      Parameters:
      buffer - the buffer containing the digits.
      Returns:
      an integer with the value of a 5 digit number.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • writeNumber5

      public final void writeNumber5(int value, ByteArray barray)
      Writes 5 digits of supplied integer value to a byte array.
      Parameters:
      value - the integer value to be written to barray.
      barray - the byte array where the digits are written.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • readNumber6

      public final int readNumber6(ByteBuffer buffer)
      Returns an integer with the value of a 6 digit number.
      Parameters:
      buffer - the buffer containing the digits.
      Returns:
      an integer with the value of a 6 digit number.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • writeNumber6

      public final void writeNumber6(int value, ByteArray barray)
      Writes 6 digits of supplied integer value to a byte array.
      Parameters:
      value - the integer value to be written to barray.
      barray - the byte array where the digits are written.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • readNumber7

      public final int readNumber7(ByteBuffer buffer)
      Returns an integer with the value of a 7 digit number.
      Parameters:
      buffer - the buffer containing the digits.
      Returns:
      an integer with the value of a 7 digit number.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • writeNumber7

      public final void writeNumber7(int value, ByteArray barray)
      Writes 7 digits of supplied integer value to a byte array.
      Parameters:
      value - the integer value to be written to barray.
      barray - the byte array where the digits are written.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • readNumber8

      public final int readNumber8(ByteBuffer buffer)
      Returns an integer with the value of a 8 digit number.
      Parameters:
      buffer - the buffer containing the digits.
      Returns:
      an integer with the value of a 8 digit number.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • writeNumber8

      public final void writeNumber8(int value, ByteArray barray)
      Writes 8 digits of supplied integer value to a byte array.
      Parameters:
      value - the integer value to be written to barray.
      barray - the byte array where the digits are written.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • readNumber9

      public final int readNumber9(ByteBuffer buffer)
      Returns an integer with the value of a 9 digit number.
      Parameters:
      buffer - the buffer containing the digits.
      Returns:
      an integer with the value of a 9 digit number.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • writeNumber9

      public final void writeNumber9(int value, ByteArray barray)
      Writes 9 digits of supplied integer value to a byte array.
      Parameters:
      value - the integer value to be written to barray.
      barray - the byte array where the digits are written.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • readNumber10

      public final long readNumber10(ByteBuffer buffer)
      Returns a long with the value of a 10 digit number.
      Parameters:
      buffer - the buffer containing the digits.
      Returns:
      a long with the value of a 10 digit number.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • writeNumber10

      public final void writeNumber10(long value, ByteArray barray)
      Writes 10 digits of supplied long value to a byte array.
      Parameters:
      value - the long value to be written to barray.
      barray - the byte array where the digits are written.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • readNumber12

      public final long readNumber12(ByteBuffer buffer)
      Returns a long with the value of a 12 digit number.
      Parameters:
      buffer - the buffer containing the digits.
      Returns:
      a long with the value of a 12 digit number.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • writeNumber12

      public final void writeNumber12(long value, ByteArray barray)
      Writes 12 digits of supplied long value to a byte array.
      Parameters:
      value - the long value to be written to barray.
      barray - the byte array where the digits are written.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • readNumber14

      public final long readNumber14(ByteBuffer buffer)
      Returns a long with the value of a 14 digit number.
      Parameters:
      buffer - the buffer containing the digits.
      Returns:
      a long with the value of a 14 digit number.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • writeNumber14

      public final void writeNumber14(long value, ByteArray barray)
      Writes 14 digits of supplied long value to a byte array.
      Parameters:
      value - the long value to be written to barray.
      barray - the byte array where the digits are written.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if value is out-of-range.

    • readBigDecimal

      public final BigDecimal readBigDecimal(ByteBuffer buffer, int length)
      Returns a BigDecimal value of length digits.
      Parameters:
      buffer - the buffer containing the digits.
      length - the number of digits of the value.
      Returns:
      a BigDecimal value read from supplied buffer.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • readBigInteger

      public final BigInteger readBigInteger(ByteBuffer buffer, int length)
      Returns a BigInteger value of length digits.
      Parameters:
      buffer - the buffer containing the digits.
      length - the number of digits of the value.
      Returns:
      a BigInteger value read from supplied buffer.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • checkNumericString

      public final void checkNumericString(String text)
      Checks that all the characters of the supplied string are digits.
      Parameters:
      text - the string to be inspected and checked.
      Throws:
      NullPointerException - if text is null.
      IsoException - if text contains non-digit chars.

    • readChar

      public final char readChar(ByteBuffer buffer)
      Returns the next available character in buffer.
      Parameters:
      buffer - the buffer containing the character.
      Returns:
      the next available character in buffer.
      Throws:
      NullPointerException - if buffer is null.
      BufferUnderflowException - if buffer is missing bytes.

    • writeChar

      public final void writeChar(char value, ByteArray barray)
      Writes the supplied character to given byte array.
      Parameters:
      value - the character to be written to barray.
      barray - the byte array where the character is written.
      Throws:
      NullPointerException - if barray is null.

    • writeChar

      public final void writeChar(Character ch, char defval, ByteArray barray)
      Writes the supplied character to given byte array with default value.
      Parameters:
      ch - the character to be written to barray (can be null).
      defval - the default value written if ch is null.
      barray - the byte array where the character is written.
      Throws:
      NullPointerException - if barray is null.

    • readString

      public final String readString(ByteBuffer buffer, int length, boolean rtrim)
      Returns a fixed-length string of length characters.
      Parameters:
      buffer - the buffer containing the fixed-length string.
      length - the number of required string characters.
      rtrim - if true the string is right-trimmed.
      Returns:
      a fixed-length string of length characters.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • writeString

      public final void writeString(String value, int length, char fill, ByteArray barray)
      Writes a left-justified fixed-length string to a byte array.
      Parameters:
      value - the string to be written to barray (can be null).
      length - the length of the fixed-length of the string.
      fill - the character used to right-fill to complete length.
      barray - the byte array where the string is written.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if string value is too long.

    • writeString

      public final void writeString(char fill, String value, int length, ByteArray barray)
      Writes a right-justified fixed-length string to a byte array.
      Parameters:
      fill - the character used to left-fill to complete length.
      value - the string to be written to barray (can be null).
      length - the length of the fixed-length of the string.
      barray - the byte array where the string is written.
      Throws:
      NullPointerException - if barray is null.
      IsoException - if string value is too long.

    • readHexBytes

      public final byte[] readHexBytes(ByteBuffer buffer, int length)
      Reads ASCII hexadecimal characters and returns the converted bytes.
      Parameters:
      buffer - the buffer containing hexadecimal characters.
      length - the number of hexadecimal characters to read.
      Returns:
      the byte array built using input hexadecimal characters.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if length is negative or not even.
      BufferUnderflowException - if buffer is missing bytes.

    • writeHexBytes

      public final void writeHexBytes(byte[] bytes, int length, ByteArray barray)
      Writes the ASCII hexadecimal characters of bytes into byte array.
      Parameters:
      bytes - the array of bytes to be converted.
      length - the number of hexadecimal characters to write.
      barray - the byte array where the bytes are written.
      Throws:
      NullPointerException - if an argument is null.
      IsoException - if bytes is too long.

    • readHex16

      public final long readHex16(ByteBuffer buffer)
      Reads 16 ASCII hexadecimal characters and converts them to long.
      Parameters:
      buffer - the buffer containing hexadecimal characters.
      Returns:
      the long built with input hexadecimal characters.
      Throws:
      NullPointerException - if buffer is null.
      IsoException - if contents of buffer is invalid.
      BufferUnderflowException - if buffer is missing bytes.

    • writeHex16

      public final void writeHex16(long value, ByteArray barray)
      Writes 16 ASCII hexadecimal characters of a long into byte array.
      Parameters:
      value - the long to be converted and written to barray.
      barray - the byte array where the long is written.
      Throws:
      NullPointerException - if barray is null.