/// <summary>
/// Determines whether the specified account number is valid. The account number
/// is given as a full number including the hypothetical check digit.
/// validation steps:
/// * bank code can have 3 digits max
/// * branch code can have 5 digits max (including 1 check digit)
/// * account number can have 16 digits max
/// * check digit is valid
/// </summary>
/// <param name="accountNumber">The account number including the hypothetical check digit.</param>
/// <param name="validationErrors">Collection is filled up with the validation error messages</param>
/// <returns>
/// <c>true</c> if the specified account number is valid; otherwise, <c>false</c>.
/// </returns>
public bool Validate(NationalAccountNumber accountNumber, ICollection <ValidationError> validationErrors)
{
if (accountNumber == null)
{
throw new ArgumentNullException("accountNumber", "Please provide an account number.");
}
validationErrors = validationErrors ?? new List <ValidationError>();
var albaniaAccountNumber = new AlbaniaAccountNumber(accountNumber);
ValidationMethodsTools.ValidateMember(albaniaAccountNumber.AccountNumber, 16, validationErrors, ValidationErrorCodes.AccountNumberMissing, ValidationErrorCodes.AccountNumberTooLong);
ValidationMethodsTools.ValidateMember(albaniaAccountNumber.BankCode, 3, validationErrors, ValidationErrorCodes.BankCodeMissing, ValidationErrorCodes.BankCodeTooLong);
ValidationMethodsTools.ValidateMember(albaniaAccountNumber.Branch, 5, validationErrors, ValidationErrorCodes.BranchCodeMissing, ValidationErrorCodes.BranchCodeTooLong);
if (validationErrors.Count > 0)
{
return(false);
}
var bankCodeWithBranch =
String.Format("{0,3}{1,5}", albaniaAccountNumber.BankCode, albaniaAccountNumber.Branch).Replace(' ', '0');
if (!validationMethod.IsValid(bankCodeWithBranch))
{
validationErrors.AddValidationErrorMessage("The validation of the check digit failed.");
}
return(validationErrors.Count == 0);
}
/// <summary>
/// Calculates the check digit.
/// The account number is given without a check digit.
/// </summary>
/// <param name="accountNumber">The account number without a check digit.</param>
/// <returns>
/// The calculated check digit for the given account number
/// </returns>
public string CalculateCheckDigit(NationalAccountNumber accountNumber)
{
if (accountNumber == null)
{
throw new ArgumentNullException("accountNumber", "Please provide an account number.");
}
var albaniaAccountNumber = new AlbaniaAccountNumber(accountNumber);
if (String.IsNullOrEmpty(albaniaAccountNumber.BankCode))
{
throw new ArgumentException("The bank code is missing.", "accountNumber");
}
if (String.IsNullOrEmpty(albaniaAccountNumber.Branch))
{
throw new ArgumentException("The branch code is missing.", "accountNumber");
}
var bankCodeWithBranch =
String.Format("{0,3}{1,4}", albaniaAccountNumber.BankCode, albaniaAccountNumber.Branch).Replace(' ', '0');
return(validationMethod.CalculateCheckDigit(bankCodeWithBranch));
}
