public static bool TryParse(string value, out CustomerReferenceNumber result)
{
var segments = value
.Split(Separator);
if (segments.Length != NumberSegments)
{
result = null;
return(false);
}
var codeValue = segments[CodeIndex];
var timestampValue = segments[TimestampIndex];
var alphaNumeric = segments[AlphaNumericIndex];
if (!TryParseCode(codeValue, out char code) ||
!TryParseTimestamp(timestampValue, out DateTime timestamp))
{
result = null;
return(false);
}
if (!IsValidCode(code) ||
!IsValidTimestamp(timestamp) ||
!IsValidAlphanumeric(alphaNumeric))
{
result = null;
return(false);
}
result = new CustomerReferenceNumber(timestamp, alphaNumeric);
return(true);
}
private void ValidateReferenceNumber(CustomerReferenceNumber referenceNumber)
{
if (referenceNumber == null)
{
throw new DomainException("Reference number cannot null");
}
}
public Customer(CustomerIdentity id,
CustomerReferenceNumber referenceNumber,
string firstName,
string lastName)
: base(id)
{
ValidateReferenceNumber(referenceNumber);
ReferenceNumber = referenceNumber;
FirstName = firstName;
LastName = lastName;
}