/// <summary>
/// Calculates the specified model data.
/// </summary>
/// <param name="interpolatedSpace">The interpolatedSpace.</param>
/// <returns></returns>
public override decimal CalculateDiscountFactorAtMaturity(IInterpolatedSpace interpolatedSpace)
{
AnalyticsModel = new SwapAssetAnalytic();
//DependencyCreator.Resolve<IModelAnalytic<ISwapAssetParameters, RateMetrics>>("InflationSwapAsset");
ISwapAssetParameters analyticModelParameters = new IRSwapAssetParameters();
AnalyticResults = new RateAssetResults();
//1. instantiate curve
//var curve = (IRateCurve)modelData.MarketEnvironment.GetPricingStructure(_discountCurveName);
//2. Set the rate
analyticModelParameters.Rate = MarketQuoteHelper.NormalisePriceUnits(FixedRate, "DecimalRate").value;
//3. Set the start diccount factor
analyticModelParameters.StartDiscountFactor =
GetDiscountFactor(interpolatedSpace, AdjustedStartDate, BaseDate);
//4. Get the respective year fractions
analyticModelParameters.YearFractions = GetYearFractions();
//5. Set the anaytic input parameters and Calculate the respective metrics
AnalyticResults =
AnalyticsModel.Calculate <IRateAssetResults, RateAssetResults>(analyticModelParameters,
new[] { RateMetrics.DiscountFactorAtMaturity });
return(AnalyticResults.DiscountFactorAtMaturity);
}
/// <summary>
/// Calculates the specified model data.
/// </summary>
/// <param name="modelData">The model data.</param>
/// <returns></returns>
public override BasicAssetValuation Calculate(IAssetControllerData modelData)
{
ModelData = modelData;
AnalyticsModel = new SwapAssetAnalytic();
//DependencyCreator.Resolve<IModelAnalytic<ISwapAssetParameters, RateMetrics>>("InflationSwapAsset");
var metrics = MetricsHelper.GetMetricsToEvaluate(Metrics, AnalyticsModel.Metrics);
// Determine if DFAM has been requested - if so thats all we evaluate - every other metric is ignored
var bEvalDiscountFactorAtMaturity = false;
if (metrics.Contains(RateMetrics.DiscountFactorAtMaturity))
{
bEvalDiscountFactorAtMaturity = true;
metrics.RemoveAll(
metricItem => metricItem != RateMetrics.DiscountFactorAtMaturity);
}
var metricsToEvaluate = metrics.ToArray();
ISwapAssetParameters analyticModelParameters = new IRSwapAssetParameters();
AnalyticResults = new RateAssetResults();
var marketEnvironment = modelData.MarketEnvironment;
IRateCurve curve = null;
//1. instantiate curve
if (marketEnvironment.GetType() == typeof(SimpleMarketEnvironment))
{
curve = (IRateCurve)((ISimpleMarketEnvironment)marketEnvironment).GetPricingStructure();
CurveName = curve.GetPricingStructureId().UniqueIdentifier;
}
if (marketEnvironment.GetType() == typeof(SimpleRateMarketEnvironment))
{
curve = ((ISimpleRateMarketEnvironment)marketEnvironment).GetRateCurve();
CurveName = curve.GetPricingStructureId().UniqueIdentifier;
}
if (marketEnvironment.GetType() == typeof(SwapLegEnvironment))
{
curve = ((ISwapLegEnvironment)marketEnvironment).GetDiscountRateCurve();
CurveName = curve.GetPricingStructureId().UniqueIdentifier;
}
if (marketEnvironment.GetType() == typeof(MarketEnvironment))
{
curve = (IRateCurve)modelData.MarketEnvironment.GetPricingStructure(CurveName);
}
//2. Set the rate
analyticModelParameters.Rate = MarketQuoteHelper.NormalisePriceUnits(FixedRate, "DecimalRate").value;
if (bEvalDiscountFactorAtMaturity)
{
//3. Set the start diccount factor
analyticModelParameters.StartDiscountFactor =
GetDiscountFactor(curve, AdjustedStartDate, modelData.ValuationDate);
//4. Get the respective year fractions
analyticModelParameters.YearFractions = GetYearFractions();
//5. Set the anaytic input parameters and Calculate the respective metrics
AnalyticResults =
AnalyticsModel.Calculate <IRateAssetResults, RateAssetResults>(analyticModelParameters,
metricsToEvaluate);
}
else
{
//2. Get the discount factors
analyticModelParameters.DiscountFactors =
GetDiscountFactors(curve, AdjustedPeriodDates.ToArray(), modelData.ValuationDate);
//3. Get the respective year fractions
analyticModelParameters.YearFractions = GetYearFractions();
//4. Get the Weightings
analyticModelParameters.Weightings =
CreateWeightings(CDefaultWeightingValue, analyticModelParameters.DiscountFactors.Length);
//5. Set the anaytic input parameters and Calculate the respective metrics
AnalyticResults =
AnalyticsModel.Calculate <IRateAssetResults, RateAssetResults>(analyticModelParameters,
metricsToEvaluate);
}
return(GetValue(AnalyticResults));
}