toBuffer static method

List<int> toBuffer(
  1. String uuidString, {
  2. bool validate = true,
})

Converts a UUID string to a binary buffer.

This method takes a UUID string in the format "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx", removes hyphens, and converts it to a binary buffer of 16 bytes. The binary buffer representation of a UUID can be useful for certain operations, such as storage or transmission.

Parameters:

  • uuidString: The UUID string to convert to a binary buffer.

Returns: A binary buffer (List<int>) representing the UUID.

Implementation

static List<int> toBuffer(String uuidString, {bool validate = true}) {
  if (validate && !isValidUUIDv4(uuidString)) {
    throw ArgumentException("invalid uuid string.",
        details: {"uuid": uuidString});
  }
  final buffer = List<int>.filled(16, 0);

  /// Remove dashes and convert the hexadecimal string to bytes
  final cleanUuidString = uuidString.replaceAll('-', '');
  final bytes = BytesUtils.fromHexString(cleanUuidString);

  /// Copy the bytes into the buffer
  for (var i = 0; i < 16; i++) {
    buffer[i] = bytes[i];
  }

  return buffer;
}