private static void ZeroiseUtoB(IModulusWeightMapping weightMapping)
{
for (var i = 0; i < 8; i++)
{
weightMapping.WeightValues[i] = 0;
}
}
protected bool ProcessWeightingRule(BankAccountDetails bankAccountDetails, IModulusWeightMapping modulusWeightMapping)
{
var weightingSum = new StandardModulusCheck().GetModulusSum(bankAccountDetails,modulusWeightMapping);
var remainder = weightingSum%Modulus;
return modulusWeightMapping.Exception == 4
? bankAccountDetails.AccountNumber.GetExceptionFourCheckValue == remainder
: remainder == 0;
}
public ModulusWeightMapping(IModulusWeightMapping original)
{
WeightValues = new int[14];
Array.Copy(original.WeightValues, WeightValues, 14);
Algorithm = original.Algorithm;
SortCodeStart = original.SortCodeStart;
SortCodeEnd = original.SortCodeEnd;
Exception = original.Exception;
}
protected bool ProcessWeightingRule(BankAccountDetails bankAccountDetails, IModulusWeightMapping modulusWeightMapping)
{
var weightingSum = new StandardModulusCheck().GetModulusSum(bankAccountDetails, modulusWeightMapping);
var remainder = weightingSum % Modulus;
return(modulusWeightMapping.Exception == 4
? bankAccountDetails.AccountNumber.GetExceptionFourCheckValue == remainder
: remainder == 0);
}
public ModulusWeightMapping(IModulusWeightMapping original)
{
WeightValues = new int[14];
Array.Copy(original.WeightValues, WeightValues, 14);
Algorithm = original.Algorithm;
SortCodeStart = original.SortCodeStart;
SortCodeEnd = original.SortCodeEnd;
Exception = original.Exception;
}
private bool InitialSecondCheck(BankAccountDetails bankAccountDetails, IModulusWeightMapping mapping)
{
var alternativeWeightMapping = new ModulusWeightMapping(mapping)
{
WeightValues =
bankAccountDetails
.GetExceptionTwoAlternativeWeights(
mapping.WeightValues)
};
return ProcessWeightingRule(bankAccountDetails, alternativeWeightMapping);
}
private bool InitialSecondCheck(BankAccountDetails bankAccountDetails, IModulusWeightMapping mapping)
{
var alternativeWeightMapping = new ModulusWeightMapping(mapping)
{
WeightValues =
bankAccountDetails
.GetExceptionTwoAlternativeWeights(
mapping.WeightValues)
};
return(ProcessWeightingRule(bankAccountDetails, alternativeWeightMapping));
}
/// For the standard check with exception 5 the checkdigit is g from the original account number.
/// • After dividing the result by 11;
/// - if the remainder=0 and g=0 the account number is valid
/// - if the remainder=1 the account number is invalid
/// - for all other remainders, take the remainder away from 11. If the number you get is the same as g
/// then the account number is valid.
private new bool ProcessWeightingRule(BankAccountDetails bankAccountDetails, IModulusWeightMapping modulusWeightMapping)
{
var weightingSum = new StandardModulusCheck().GetModulusSum(bankAccountDetails, modulusWeightMapping);
var remainder = weightingSum % Modulus;
switch (remainder)
{
case 0 :
return bankAccountDetails.AccountNumber.IntegerAt(6) == 0;
case 1 :
return false;
default :
return Modulus - remainder == bankAccountDetails.AccountNumber.IntegerAt(6);
}
}
public int GetModulusSum(BankAccountDetails bankAccountDetails, IModulusWeightMapping weightMapping)
{
var combinedValue = bankAccountDetails.ToCombinedString();
if (combinedValue.Length != 14)
{
throw new Exception(
String.Format("Combined SortCode and Account Number should be 14 characters long not {0}: {1}",
combinedValue.Length, combinedValue));
}
var sum = 0;
for (var i = 0; i < 14; i++)
{
sum += (Int16.Parse(combinedValue[i].ToString(CultureInfo.InvariantCulture)) * weightMapping.WeightValues[i]);
}
return sum;
}
/// For the standard check with exception 5 the checkdigit is g from the original account number.
/// • After dividing the result by 11;
/// - if the remainder=0 and g=0 the account number is valid
/// - if the remainder=1 the account number is invalid
/// - for all other remainders, take the remainder away from 11. If the number you get is the same as g
/// then the account number is valid.
private new bool ProcessWeightingRule(BankAccountDetails bankAccountDetails, IModulusWeightMapping modulusWeightMapping)
{
var weightingSum = new StandardModulusCheck().GetModulusSum(bankAccountDetails, modulusWeightMapping);
var remainder = weightingSum % Modulus;
switch (remainder)
{
case 0:
return(bankAccountDetails.AccountNumber.IntegerAt(6) == 0);
case 1:
return(false);
default:
return(Modulus - remainder == bankAccountDetails.AccountNumber.IntegerAt(6));
}
}
public int GetModulusSum(BankAccountDetails bankAccountDetails, IModulusWeightMapping weightMapping)
{
var combinedValue = bankAccountDetails.ToCombinedString();
if (combinedValue.Length != 14)
{
throw new Exception(
string.Format("Combined SortCode and Account Number should be 14 characters long not {0}: {1}",
combinedValue.Length, combinedValue));
}
var sum = 0;
for (var i = 0; i < 14; i++)
{
sum += (int.Parse(combinedValue[i].ToString(CultureInfo.InvariantCulture)) * weightMapping.WeightValues[i]);
}
return(sum);
}
private static void ZeroiseUtoB(IModulusWeightMapping weightMapping)
{
for (var i = 0; i < 8; i++)
{
weightMapping.WeightValues[i] = 0;
}
}
