internal BankAccountValidationPipeline CreateValidationPipeline(BankAccountDetails bankAccountDetails)
{
var pipeline = new BankAccountValidationPipeline();
// note - EISCDSortCodeValidationStep does not do anything.
pipeline.InitialValidationStep = new EISCDSortCodeValidationStep(bankAccountDetails, pipeline);
var currentValidationStep = pipeline.InitialValidationStep;
var modulusWeightings = (new VocalinkModulusWeightingData().GetModulusWeightings());
var weightingsForSortCode = modulusWeightings.Where(w => w.SortCodeStart <= bankAccountDetails.SortCode
&& w.SortCodeEnd <= bankAccountDetails.SortCode);
// Create validation pipeline steps according to weightings from Vocalink
foreach (var weighting in weightingsForSortCode)
{
ModulusCheck modulusCheck = null;
// Apply Execptions when creating pipeline
// Exception 4 - adjust expected result
if (4 == weighting.ExceptionNumber)
{
modulusCheck = new Standard11ModulusCheck(bankAccountDetails, weighting);
modulusCheck.ExpectedResult = int.Parse(bankAccountDetails.CombinedNumberDigits[12].ToString() + bankAccountDetails.CombinedNumberDigits[12].ToString());
}
else
{
switch (weighting.ModulusAlgorithmEnum)
{
case Enums.ModulusAlgorithmEnum.MOD10:
modulusCheck = new Standard10ModulusCheck(bankAccountDetails, weighting);
break;
case Enums.ModulusAlgorithmEnum.MOD11:
modulusCheck = new Standard11ModulusCheck(bankAccountDetails, weighting);
break;
case Enums.ModulusAlgorithmEnum.DBLAL:
modulusCheck = new DoubleAlternateModulusCheck(bankAccountDetails, weighting);
break;
}
}
// Excpetion 7 - if g=9 then zeroise u-b
if (7 == weighting.ExceptionNumber)
{
if (9 == bankAccountDetails.CombinedNumberDigits[12])
{
for (int i = 0; i < 8; i++)
{
bankAccountDetails.CombinedNumberDigits[i] = 0;
}
}
}
// Indicate Exceptions not applied
if (weighting.ExceptionNumber.HasValue
&& (!(weighting.ExceptionNumber == 4
|| weighting.ExceptionNumber == 7))
)
{
modulusCheck.ValidationDetails = string.Format("Excluded adjustment for Exception {0}", weighting.ExceptionNumber.ToString());
}
var validationStep = new ModulusCheckValidationStep(modulusCheck, pipeline);
currentValidationStep.NextStep = validationStep;
currentValidationStep = validationStep;
}
return pipeline;
}
internal ModulusCheckValidationStep(ModulusCheck modulusCheck, BankAccountValidationPipeline pipeline)
{
this.ModulusCheck = modulusCheck;
this.Pipeline = pipeline;
}
