/// <summary>
/// Gets the unadjusted calculation date schedule.
/// </summary>
/// <param name="calculationPeriodDates">The calculation period dates.</param>
/// <returns></returns>
public List <CalculationPeriod> GetUnadjustedCalculationDateSchedule(CalculationPeriodDates calculationPeriodDates)
{
CalculationPeriodDates = calculationPeriodDates;
PeriodInterval = CalculationPeriodHelper.CalculationPeriodFrequencyToInterval(calculationPeriodDates.calculationPeriodFrequency);
_effectiveDate = XsdClassesFieldResolver.CalculationPeriodDatesGetEffectiveDate(calculationPeriodDates).unadjustedDate.Value;
_termDate = XsdClassesFieldResolver.CalculationPeriodDatesGetTerminationDate(calculationPeriodDates).unadjustedDate.Value;
RollConvention = calculationPeriodDates.calculationPeriodFrequency.rollConvention;
_unadjustedDateScheduleList = CalculationPeriodHelper.GenerateUnadjustedCalculationDates(_effectiveDate, _termDate, calculationPeriodDates);
return(_unadjustedDateScheduleList);
}
///<summary>
/// Gets all the Forecast curve name.
///</summary>
///<returns></returns>
public static string GetRateVolatilityMatrixName(Swap swap)
{
AdjustableDate adjustableEffectiveDate = XsdClassesFieldResolver.CalculationPeriodDatesGetEffectiveDate(swap.swapStream[0].calculationPeriodDates);
AdjustableDate adjustableTerminationDate = XsdClassesFieldResolver.CalculationPeriodDatesGetTerminationDate(swap.swapStream[0].calculationPeriodDates);
var years = adjustableTerminationDate.unadjustedDate.Value.Year - adjustableEffectiveDate.unadjustedDate.Value.Year;
var calculation = (Calculation)swap.swapStream[0].calculationPeriodAmount.Item;
var notional = XsdClassesFieldResolver.CalculationGetNotionalSchedule(calculation);
var currency = notional.notionalStepSchedule.currency.Value;
return(PricingStructureTypeEnum.RateVolatilityMatrix + "." + currency + "-IRSwap-" + years + "Y");
}
/// <summary>
/// Don't generate stubs?
/// </summary>
/// <param name="interestRateStream"></param>
/// <param name="rollDates">from #1st roll date to last roll date (last roll dates is effectively the end of the swap)</param>
/// <param name="paymentCalendar"></param>
/// <returns></returns>
public static CalculationPeriodsPrincipalExchangesAndStubs GenerateCalculationPeriodsPrincipalExchangesAndStubsFromRollDates(InterestRateStream interestRateStream,
List <DateTime> rollDates,
IBusinessCalendar paymentCalendar)
{
CalculationPeriodDates calculationPeriodDates = interestRateStream.calculationPeriodDates;
AdjustableDate adjustableEffectiveDate = XsdClassesFieldResolver.CalculationPeriodDatesGetEffectiveDate(calculationPeriodDates);
var result = new CalculationPeriodsPrincipalExchangesAndStubs();
for (int rollDateIndex = 0; rollDateIndex < rollDates.Count - 1; ++rollDateIndex)
{
DateTime startOfThePeriod = rollDates[rollDateIndex];
DateTime endOfThePeriod = rollDates[rollDateIndex + 1];
var calculationPeriod = new CalculationPeriod();
// Set adjusted period dates
//
CalculationPeriodHelper.SetAdjustedDates(calculationPeriod,
startOfThePeriod,
endOfThePeriod);
result.Add(calculationPeriod);
}
// Add principle exchanges if this need is defined in parametric representation of the interest rate steam.
//
if (null != interestRateStream.principalExchanges)
{
// Initial PE
//
if (interestRateStream.principalExchanges.initialExchange)
{
//if (paymentCalendar == null)
//{
// paymentCalendar = BusinessCenterHelper.ToBusinessCalendar(cache, adjustableEffectiveDate.dateAdjustments.businessCenters);
//}
PrincipalExchange initialExchange = PrincipalExchangeHelper.Create(AdjustedDateHelper.ToAdjustedDate(paymentCalendar, adjustableEffectiveDate));
result.InitialPrincipalExchange = initialExchange;
}
// intermediary PE
//
if (interestRateStream.principalExchanges.intermediateExchange)
{
// Generate a list of intermediary PE exchanges
//
Calculation calculation = XsdClassesFieldResolver.CalculationPeriodAmountGetCalculation(interestRateStream.calculationPeriodAmount);
Notional notionalSchedule = XsdClassesFieldResolver.CalculationGetNotionalSchedule(calculation);
if (null != notionalSchedule.notionalStepSchedule.step)//there should be steps - otherwise NO interm. exchanges.
{
foreach (DateTime stepDate in ScheduleHelper.GetStepDates(notionalSchedule.notionalStepSchedule))
{
PrincipalExchange intermediaryExchange = PrincipalExchangeHelper.Create(stepDate);
result.Add(intermediaryExchange);
}
}
}
//AdjustableDate adjustableTerminationDate = XsdClassesFieldResolver.CalculationPeriodDates_GetTerminationDate(calculationPeriodDates);
DateTime lastRollDate = rollDates[rollDates.Count - 1];
// Final PE
//
if (interestRateStream.principalExchanges.finalExchange)
{
//PrincipalExchange finalExchange = PrincipalExchangeHelper.Create(DateTypesHelper.ToAdjustedDate(adjustableTerminationDate));
PrincipalExchange finalExchange = PrincipalExchangeHelper.Create(lastRollDate);
result.FinalPrincipalExchange = finalExchange;
}
}
return(result);
}
public static CalculationPeriodsPrincipalExchangesAndStubs GenerateCalculationPeriodsPrincipalExchangesAndStubs(
InterestRateStream interestRateStream, IBusinessCalendar fixingCalendar, IBusinessCalendar paymentCalendar)
{
CalculationPeriodDates calculationPeriodDates = interestRateStream.calculationPeriodDates;
AdjustableDate adjustableEffectiveDate = XsdClassesFieldResolver.CalculationPeriodDatesGetEffectiveDate(calculationPeriodDates);
AdjustableDate adjustableTerminationDate = XsdClassesFieldResolver.CalculationPeriodDatesGetTerminationDate(calculationPeriodDates);
AdjustableDate adjustableFirstPeriodDate = adjustableEffectiveDate;
DateTime?firstRegularPeriodStartDate =
XsdClassesFieldResolver.CalculationPeriodDatesGetFirstRegularPeriodStartDate(calculationPeriodDates);
var tempDate = XsdClassesFieldResolver.CalculationPeriodDatesGetFirstPeriodStartDate(calculationPeriodDates);
if (tempDate != null && firstRegularPeriodStartDate != null)
{
adjustableFirstPeriodDate = tempDate;
Frequency frequency = calculationPeriodDates.calculationPeriodFrequency;
var startDate = CalculationPeriodGenerator.AddPeriod((DateTime)firstRegularPeriodStartDate, IntervalHelper.FromFrequency(frequency), -1);
adjustableFirstPeriodDate.unadjustedDate = IdentifiedDateHelper.Create(startDate);
}
DateTime?lastRegularPeriodEndDate =
XsdClassesFieldResolver.CalculationPeriodDatesGetLastRegularPeriodEndDate(calculationPeriodDates);
// This assumes automatic adjustment of calculation periods.
CalculationPeriodsPrincipalExchangesAndStubs result = CalculationPeriodGenerator.GenerateAdjustedCalculationPeriods(
adjustableFirstPeriodDate.unadjustedDate.Value,
adjustableTerminationDate.unadjustedDate.Value,
firstRegularPeriodStartDate,
lastRegularPeriodEndDate,
calculationPeriodDates.calculationPeriodFrequency,
calculationPeriodDates.calculationPeriodDatesAdjustments,
paymentCalendar);
//Determine whether the reset dates must be calculated.
Calculation calculation = XsdClassesFieldResolver.CalculationPeriodAmountGetCalculation(interestRateStream.calculationPeriodAmount);
// Add principle exchanges if this need is defined in parametric representation of the interest rate steam.
//
if (null != interestRateStream.principalExchanges)
{
//if (paymentCalendar == null)
//{
// paymentCalendar = BusinessCenterHelper.ToBusinessCalendar(cache, adjustableEffectiveDate.dateAdjustments.businessCenters);
//}
// Initial PE
//
if (interestRateStream.principalExchanges.initialExchange)
{
PrincipalExchange initialExchange = PrincipalExchangeHelper.Create(AdjustedDateHelper.ToAdjustedDate(paymentCalendar, adjustableEffectiveDate));
result.InitialPrincipalExchange = initialExchange;
}
// intermediary PE
//
if (interestRateStream.principalExchanges.intermediateExchange)
{
// Generate a list of intermediary PE exchanges
//
Notional notionalSchedule = XsdClassesFieldResolver.CalculationGetNotionalSchedule(calculation);
if (null != notionalSchedule.notionalStepSchedule.step)//there should be steps - otherwise NO interm. exchanges.
{
foreach (DateTime stepDate in ScheduleHelper.GetStepDates(notionalSchedule.notionalStepSchedule))
{
PrincipalExchange intermediaryExchange = PrincipalExchangeHelper.Create(stepDate);
result.Add(intermediaryExchange);
}
}
}
// Final PE
// Assume the same calendar is used for the termination date as well!
if (interestRateStream.principalExchanges.finalExchange)
{
PrincipalExchange finalExchange = PrincipalExchangeHelper.Create(AdjustedDateHelper.ToAdjustedDate(paymentCalendar, adjustableTerminationDate));
result.FinalPrincipalExchange = finalExchange;
}
}
//Only does upfront resetRelativeTo start date.
if (interestRateStream.resetDates != null && calculation.Items[0].GetType() == typeof(FloatingRateCalculation))
{
//Get the fixing date convention.
var fixingDateConvention = interestRateStream.resetDates.resetDatesAdjustments;
//if (fixingCalendar == null)
//{
// fixingCalendar = BusinessCenterHelper.ToBusinessCalendar(cache, fixingDateConvention.businessCenters);
//}
foreach (var calculationPeriod in result.CalculationPeriods)
{
if (calculationPeriod.adjustedStartDateSpecified)
{
//Set the adjusted fixing date.
var adjustedFixingDate = AdjustedDateHelper.ToAdjustedDate(fixingCalendar, calculationPeriod.adjustedStartDate,
fixingDateConvention);
var floatingRateDefinition = new FloatingRateDefinition();
var rateObservation = new RateObservation
{
observedRateSpecified = false,
adjustedFixingDateSpecified = true,
adjustedFixingDate = adjustedFixingDate
};
floatingRateDefinition.rateObservation = new[] { rateObservation };
calculationPeriod.Item1 = floatingRateDefinition;
}
}
//The initial stub period.
if (result.InitialStubCalculationPeriod != null)
{
if (result.InitialStubCalculationPeriod.adjustedStartDateSpecified)
{
//Set the adjusted fixing date.
var adjustedFixingDate = AdjustedDateHelper.ToAdjustedDate(fixingCalendar, result.InitialStubCalculationPeriod.adjustedStartDate,
fixingDateConvention);
var floatingRateDefinition = new FloatingRateDefinition();
var rateObservation = new RateObservation
{
observedRateSpecified = false,
adjustedFixingDateSpecified = true,
adjustedFixingDate = adjustedFixingDate
};
floatingRateDefinition.rateObservation = new[] { rateObservation };
result.InitialStubCalculationPeriod.Item1 = floatingRateDefinition;
}
}
//The final stub period
if (result.FinalStubCalculationPeriod != null)
{
if (result.FinalStubCalculationPeriod.adjustedStartDateSpecified)
{
//Set the adjusted fixing date.
var adjustedFixingDate = AdjustedDateHelper.ToAdjustedDate(fixingCalendar, result.FinalStubCalculationPeriod.adjustedStartDate,
fixingDateConvention);
var floatingRateDefinition = new FloatingRateDefinition();
var rateObservation = new RateObservation
{
observedRateSpecified = false,
adjustedFixingDateSpecified = true,
adjustedFixingDate = adjustedFixingDate
};
floatingRateDefinition.rateObservation = new[] { rateObservation };
result.FinalStubCalculationPeriod.Item1 = floatingRateDefinition;
}
}
}
return(result);
}
protected SwapPricer(ILogger logger, ICoreCache cache, String nameSpace,
List <Pair <IBusinessCalendar, IBusinessCalendar> > legCalendars,
Swap swapFpML, string basePartyReference,
ProductTypeSimpleEnum productType, Boolean forecastRateInterpolation)
{
Multiplier = 1.0m;
if (swapFpML == null)
{
return;
}
BusinessCentersResolver.ResolveBusinessCenters(swapFpML);
ForecastRateInterpolation = forecastRateInterpolation;
//Get the effective date
AdjustableDate adjustableEffectiveDate = XsdClassesFieldResolver.CalculationPeriodDatesGetEffectiveDate(swapFpML.swapStream[0].calculationPeriodDates);
EffectiveDate = adjustableEffectiveDate.unadjustedDate.Value;
//We make the assumption that the termination date is the same for all legs.
AdjustableDate adjustableTerminationDate = XsdClassesFieldResolver.CalculationPeriodDatesGetTerminationDate(swapFpML.swapStream[0].calculationPeriodDates);
var paymentCalendar = BusinessCenterHelper.ToBusinessCalendar(cache, adjustableTerminationDate.dateAdjustments.businessCenters, nameSpace);
TerminationDate = AdjustedDateHelper.ToAdjustedDate(paymentCalendar, adjustableTerminationDate);
RiskMaturityDate = TerminationDate;
//EffectiveDate is not set;
ProductType = productType;
PaymentCurrencies = new List <string>();
//Resolve the payer
var legs = swapFpML.swapStream.Length;
if (legs == 0)
{
return;
}
var flag = false;
var index = 0;
if (legCalendars != null && legCalendars.Count == legs)
{
flag = true;
}
foreach (var swapStream in swapFpML.swapStream)
{
bool payerIsBase = basePartyReference == swapStream.payerPartyReference.href;//TODO add in the calendar functionality.
//Set the id of the first stream.
PriceableInterestRateStream leg = flag ? new PriceableInterestRateStream(logger, cache, nameSpace, payerIsBase, swapStream, ForecastRateInterpolation, legCalendars[index].First, legCalendars[index].Second)
: new PriceableInterestRateStream(logger, cache, nameSpace, payerIsBase, swapStream, ForecastRateInterpolation, null, null);
Legs.Add(leg);
//Add the currencies for the trade pricer.
if (!PaymentCurrencies.Contains(leg.Currency.Value))
{
PaymentCurrencies.Add(leg.Currency.Value);
}
index++;
}
if (swapFpML.additionalPayment != null)
{
AdditionalPayments = PriceableInstrumentsFactory.CreatePriceablePayments(basePartyReference, swapFpML.additionalPayment, null);
foreach (var payment in swapFpML.additionalPayment)
{
if (!PaymentCurrencies.Contains(payment.paymentAmount.currency.Value))
{
PaymentCurrencies.Add(payment.paymentAmount.currency.Value);
}
}
}
}
