// variable fixed rate
private static SwapTrade parseVariableRates(SwapTrade trade, IList <CsvRow> variableRows)
{
ImmutableList.Builder <ValueStep> stepBuilder = ImmutableList.builder();
foreach (CsvRow row in variableRows)
{
LocalDate date = LoaderUtils.parseDate(row.getValue(START_DATE_FIELD));
row.findValue(FIXED_RATE_FIELD).map(str => LoaderUtils.parseDoublePercent(str)).ifPresent(fixedRate => stepBuilder.add(ValueStep.of(date, ValueAdjustment.ofReplace(fixedRate))));
}
ImmutableList <ValueStep> varRates = stepBuilder.build();
if (varRates.Empty)
{
return(trade);
}
// adjust the trade, inserting the variable rates
ImmutableList.Builder <SwapLeg> legBuilder = ImmutableList.builder();
foreach (SwapLeg swapLeg in trade.Product.Legs)
{
RateCalculationSwapLeg leg = (RateCalculationSwapLeg)swapLeg;
if (leg.Calculation is FixedRateCalculation)
{
FixedRateCalculation baseCalc = (FixedRateCalculation)leg.Calculation;
FixedRateCalculation calc = baseCalc.toBuilder().rate(ValueSchedule.of(baseCalc.Rate.InitialValue, varRates)).build();
legBuilder.add(leg.toBuilder().calculation(calc).build());
}
else
{
legBuilder.add(leg);
}
}
return(replaceLegs(trade, legBuilder.build()));
}
