//-------------------------------------------------------------------------
/// <summary>
/// Gets the market data that is required to perform the calculations.
/// <para>
/// This can be used to pass into the market data system to obtain and calibrate data.
///
/// </para>
/// </summary>
/// <param name="refData"> the reference data </param>
/// <returns> the market data required for all calculations </returns>
/// <exception cref="RuntimeException"> if unable to obtain the requirements </exception>
public MarketDataRequirements requirements(ReferenceData refData)
{
// use for loop not streams for shorter stack traces
MarketDataRequirementsBuilder builder = MarketDataRequirements.builder();
foreach (CalculationTask task in tasks)
{
builder.addRequirements(task.requirements(refData));
}
return(builder.build());
}
//-------------------------------------------------------------------------
public virtual MarketDataRequirements requirements(RatesCurveGroupId id, MarketDataConfig marketDataConfig)
{
RatesCurveGroupDefinition groupDefn = marketDataConfig.get(typeof(RatesCurveGroupDefinition), id.CurveGroupName);
// request input data for any curves that need market data
// no input data is requested if the curve definition contains all the market data needed to build the curve
//JAVA TO C# CONVERTER TODO TASK: Most Java stream collectors are not converted by Java to C# Converter:
IList <RatesCurveInputsId> curveInputsIds = groupDefn.CurveDefinitions.Where(defn => requiresMarketData(defn)).Select(defn => defn.Name).Select(curveName => RatesCurveInputsId.of(groupDefn.Name, curveName, id.ObservableSource)).collect(toImmutableList());
IList <ObservableId> timeSeriesIds = groupDefn.Entries.stream().flatMap(entry => entry.Indices.stream()).distinct().map(index => IndexQuoteId.of(index)).collect(toImmutableList());
return(MarketDataRequirements.builder().addValues(curveInputsIds).addTimeSeries(timeSeriesIds).build());
}
public MarketDataRequirements requirements(RatesCurveInputsId id, MarketDataConfig marketDataConfig)
{
RatesCurveGroupDefinition groupConfig = marketDataConfig.get(typeof(RatesCurveGroupDefinition), id.CurveGroupName);
Optional <CurveDefinition> optionalDefinition = groupConfig.findCurveDefinition(id.CurveName);
if (!optionalDefinition.Present)
{
return(MarketDataRequirements.empty());
}
CurveDefinition definition = optionalDefinition.get();
return(MarketDataRequirements.builder().addValues(nodeRequirements(ImmutableList.of(definition))).build());
}
//-------------------------------------------------------------------------
/// <summary>
/// Returns requirements specifying the market data the function needs to perform its calculations.
/// </summary>
/// <param name="refData"> the reference data </param>
/// <returns> requirements specifying the market data the function needs to perform its calculations </returns>
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @SuppressWarnings("unchecked") public com.opengamma.strata.calc.marketdata.MarketDataRequirements requirements(com.opengamma.strata.basics.ReferenceData refData)
public MarketDataRequirements requirements(ReferenceData refData)
{
// determine market data requirements of the function
FunctionRequirements functionRequirements = function.requirements(target, Measures, parameters, refData);
ObservableSource obsSource = functionRequirements.ObservableSource;
// convert function requirements to market data requirements
MarketDataRequirementsBuilder requirementsBuilder = MarketDataRequirements.builder();
foreach (ObservableId id in functionRequirements.TimeSeriesRequirements)
{
requirementsBuilder.addTimeSeries(id.withObservableSource(obsSource));
}
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: for (com.opengamma.strata.data.MarketDataId<?> id : functionRequirements.getValueRequirements())
foreach (MarketDataId <object> id in functionRequirements.ValueRequirements)
{
if (id is ObservableId)
{
requirementsBuilder.addValues(((ObservableId)id).withObservableSource(obsSource));
}
else
{
requirementsBuilder.addValues(id);
}
}
// add requirements for the FX rates needed to convert the output values into the reporting currency
foreach (CalculationTaskCell cell in cells)
{
if (cell.Measure.CurrencyConvertible && !cell.ReportingCurrency.None)
{
Currency reportingCurrency = cell.reportingCurrency(this, refData);
//JAVA TO C# CONVERTER TODO TASK: Most Java stream collectors are not converted by Java to C# Converter:
IList <MarketDataId <FxRate> > fxRateIds = functionRequirements.OutputCurrencies.Where(outputCurrency => !outputCurrency.Equals(reportingCurrency)).Select(outputCurrency => CurrencyPair.of(outputCurrency, reportingCurrency)).Select(pair => FxRateId.of(pair, obsSource)).collect(toImmutableList());
requirementsBuilder.addValues(fxRateIds);
}
}
return(requirementsBuilder.build());
}
public virtual MarketDataRequirements requirements(FxOptionVolatilitiesId id, MarketDataConfig marketDataConfig)
{
FxOptionVolatilitiesDefinition volatilitiesDefinition = marketDataConfig.get(typeof(FxOptionVolatilitiesDefinition), id.Name.Name);
return(MarketDataRequirements.builder().addValues(volatilitiesDefinition.volatilitiesInputs()).build());
}