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 Summary

    Constructors
    Constructor
    Description
    IsoField(int index, String format, int minlen, int maxlen, Class<T> vtype, String name)
    Constructs a new IsoField instance.

  • Method Summary

    Modifier and Type
    Method
    Description
    final void
    checkNumericString(String text)
    Checks that all the characters of the supplied string are digits.
    final T
    decodeAndSetValue(ByteBuffer buffer, M message)
    Decodes the field value from buffer and stores value in message.
    abstract T
    decodeValue(ByteBuffer buffer)
    Decodes the value of this field from the supplied byte buffer.
    abstract void
    encodeValue(T value, cl.netswitch.lib.util.ByteArray barray)
    Encodes the value of this field into the supplied byte array.
    final String
    fieldError(String error)
    Returns a string used to build exception related to this field.
    final String
    getFormat()
    Returns the name of the format of this field.
    final int
    getIndex()
    Returns the index of this field.
    final int
    getMaxLength()
    Returns the maximum length of this field.
    final int
    getMinLength()
    Returns the minimum length of this field.
    final String
    getName()
    Returns the name of this field.
    final IsoObfuscate
    getObfuscate()
    Returns the obfuscate option of this field.
    final Class<T>
    getType()
    Returns the type of the value of this field.
    final T
    getValue(M message)
    Returns the value of this field from the supplied message.
    final T
    getValueAndEncode(M message, cl.netswitch.lib.util.ByteArray barray)
    Gets the field value from message and encodes into supplied byte array.
    final BigDecimal
    readBigDecimal(ByteBuffer buffer, int length)
    Returns a BigDecimal value of length digits.
    final BigInteger
    readBigInteger(ByteBuffer buffer, int length)
    Returns a BigInteger value of length digits.
    final char
    readChar(ByteBuffer buffer)
    Returns the next available character in buffer.
    final byte
    readDigit(ByteBuffer buffer)
    Returns a byte with the value of a numeric digit.
    final ByteBuffer
    readFieldBuffer(ByteBuffer buffer, int length)
    Returns a ByteBuffer with the bytes of the specified length.
    final long
    readHex16(ByteBuffer buffer)
    Reads 16 ASCII hexadecimal characters and converts them to long.
    final byte[]
    readHexBytes(ByteBuffer buffer, int length)
    Reads ASCII hexadecimal characters and returns the converted bytes.
    final byte
    readNumber1(ByteBuffer buffer)
    Returns a byte with the value of a 1 digit number.
    final long
    readNumber10(ByteBuffer buffer)
    Returns a long with the value of a 10 digit number.
    final long
    readNumber12(ByteBuffer buffer)
    Returns a long with the value of a 12 digit number.
    final long
    readNumber14(ByteBuffer buffer)
    Returns a long with the value of a 14 digit number.
    final byte
    readNumber2(ByteBuffer buffer)
    Returns a byte with the value of a 2 digit number.
    final short
    readNumber3(ByteBuffer buffer)
    Returns a short with the value of a 3 digit number.
    final short
    readNumber4(ByteBuffer buffer)
    Returns a short with the value of a 4 digit number.
    final int
    readNumber5(ByteBuffer buffer)
    Returns an integer with the value of a 5 digit number.
    final int
    readNumber6(ByteBuffer buffer)
    Returns an integer with the value of a 6 digit number.
    final int
    readNumber7(ByteBuffer buffer)
    Returns an integer with the value of a 7 digit number.
    final int
    readNumber8(ByteBuffer buffer)
    Returns an integer with the value of a 8 digit number.
    final int
    readNumber9(ByteBuffer buffer)
    Returns an integer with the value of a 9 digit number.
    final String
    readString(ByteBuffer buffer, int length, boolean rtrim)
    Returns a fixed-length string of length characters.
    final String
    rightTrim(String str)
    Returns the supplied string with trailing spaces removed.
    final void
    setObfuscate(IsoObfuscate obfuscate)
    Changes the obfuscate option of this field.
    final void
    setValue(M message, T value)
    Changes the value of this field in the supplied message.
    final void
    writeChar(char value, cl.netswitch.lib.util.ByteArray barray)
    Writes the supplied character to given byte array.
    final void
    writeChar(Character ch, char defval, cl.netswitch.lib.util.ByteArray barray)
    Writes the supplied character to given byte array with default value.
    final void
    writeHex16(long value, cl.netswitch.lib.util.ByteArray barray)
    Writes 16 ASCII hexadecimal characters of a long into byte array.
    final void
    writeHexBytes(byte[] bytes, int length, cl.netswitch.lib.util.ByteArray barray)
    Writes the ASCII hexadecimal characters of bytes into byte array.
    final void
    writeMessageValue(M message, IsoWriter<M> writer)
    Writes the field value contained in message using writer.
    final void
    writeNumber1(byte value, cl.netswitch.lib.util.ByteArray barray)
    Writes 1 digit of supplied byte value to a byte array.
    final void
    writeNumber10(long value, cl.netswitch.lib.util.ByteArray barray)
    Writes 10 digits of supplied long value to a byte array.
    final void
    writeNumber12(long value, cl.netswitch.lib.util.ByteArray barray)
    Writes 12 digits of supplied long value to a byte array.
    final void
    writeNumber14(long value, cl.netswitch.lib.util.ByteArray barray)
    Writes 14 digits of supplied long value to a byte array.
    final int
    writeNumber2(byte value, cl.netswitch.lib.util.ByteArray barray)
    Writes 2 digits of supplied byte value to a byte array.
    final int
    writeNumber3(short value, cl.netswitch.lib.util.ByteArray barray)
    Writes 3 digits of a short value to a byte array.
    final int
    writeNumber4(short value, cl.netswitch.lib.util.ByteArray barray)
    Writes 4 digits of supplied short value to a byte array.
    final void
    writeNumber5(int value, cl.netswitch.lib.util.ByteArray barray)
    Writes 5 digits of supplied integer value to a byte array.
    final void
    writeNumber6(int value, cl.netswitch.lib.util.ByteArray barray)
    Writes 6 digits of supplied integer value to a byte array.
    final void
    writeNumber7(int value, cl.netswitch.lib.util.ByteArray barray)
    Writes 7 digits of supplied integer value to a byte array.
    final void
    writeNumber8(int value, cl.netswitch.lib.util.ByteArray barray)
    Writes 8 digits of supplied integer value to a byte array.
    final void
    writeNumber9(int value, cl.netswitch.lib.util.ByteArray barray)
    Writes 9 digits of supplied integer value to a byte array.
    final void
    writeNumberLL(cl.netswitch.lib.util.ByteArray barray, int position)
    Writes 2 digits of field length to a byte array at position.
    final void
    writeNumberLLL(cl.netswitch.lib.util.ByteArray barray, int position)
    Writes 3 digits of field length to a byte array at position.
    final void
    writeNumberLLLL(cl.netswitch.lib.util.ByteArray barray, int position)
    Writes 4 digits of field length to a byte array at position.
    final void
    writeString(char fill, String value, int length, cl.netswitch.lib.util.ByteArray barray)
    Writes a right-justified fixed-length string to a byte array.
    final void
    writeString(String value, int length, char fill, cl.netswitch.lib.util.ByteArray barray)
    Writes a left-justified fixed-length string to a byte array.
    protected void
    writeValue(T value, IsoWriter<M> writer)
    Writes the supplied field value using the specified writer.

    Methods inherited from class java.lang.Object

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

  • 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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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(cl.netswitch.lib.util.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, cl.netswitch.lib.util.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(cl.netswitch.lib.util.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, cl.netswitch.lib.util.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(cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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, cl.netswitch.lib.util.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.