/**
* Copyright (C) 2011 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.analytics.financial.provider.calculator.sabrswaption;
import com.opengamma.analytics.financial.interestrate.InstrumentDerivative;
import com.opengamma.analytics.financial.interestrate.InstrumentDerivativeVisitorSameMethodAdapter;
import com.opengamma.analytics.financial.interestrate.annuity.derivative.Annuity;
import com.opengamma.analytics.financial.interestrate.payments.derivative.CapFloorCMS;
import com.opengamma.analytics.financial.interestrate.payments.derivative.CapFloorCMSSpread;
import com.opengamma.analytics.financial.interestrate.payments.derivative.CouponCMS;
import com.opengamma.analytics.financial.interestrate.payments.derivative.Payment;
import com.opengamma.analytics.financial.interestrate.payments.provider.CapFloorCMSSABRReplicationMethod;
import com.opengamma.analytics.financial.interestrate.payments.provider.CapFloorCMSSpreadSABRBinormalMethod;
import com.opengamma.analytics.financial.interestrate.payments.provider.CouponCMSSABRReplicationMethod;
import com.opengamma.analytics.financial.interestrate.swaption.derivative.SwaptionCashFixedIbor;
import com.opengamma.analytics.financial.interestrate.swaption.derivative.SwaptionPhysicalFixedIbor;
import com.opengamma.analytics.financial.interestrate.swaption.provider.SwaptionCashFixedIborSABRMethod;
import com.opengamma.analytics.financial.interestrate.swaption.provider.SwaptionPhysicalFixedIborSABRMethod;
import com.opengamma.analytics.financial.model.option.definition.SABRInterestRateCorrelationParameters;
import com.opengamma.analytics.financial.provider.description.interestrate.SABRSwaptionProviderInterface;
import com.opengamma.analytics.financial.provider.sensitivity.multicurve.MultipleCurrencyMulticurveSensitivity;
import com.opengamma.util.ArgumentChecker;
/**
* Calculates the present value of an inflation instruments by discounting for a given MarketBundle
*/
public final class PresentValueCurveSensitivitySABRSwaptionCalculator extends InstrumentDerivativeVisitorSameMethodAdapter<SABRSwaptionProviderInterface, MultipleCurrencyMulticurveSensitivity> {
/**
* The unique instance of the calculator.
*/
private static final PresentValueCurveSensitivitySABRSwaptionCalculator INSTANCE = new PresentValueCurveSensitivitySABRSwaptionCalculator();
/**
* Gets the calculator instance.
* @return The calculator.
*/
public static PresentValueCurveSensitivitySABRSwaptionCalculator getInstance() {
return INSTANCE;
}
/**
* Constructor.
*/
private PresentValueCurveSensitivitySABRSwaptionCalculator() {
}
/**
* Pricing methods.
*/
private static final CouponCMSSABRReplicationMethod METHOD_CMS_CPN = CouponCMSSABRReplicationMethod.getInstance();
private static final CapFloorCMSSABRReplicationMethod METHOD_CMS_CAP = CapFloorCMSSABRReplicationMethod.getDefaultInstance();
private static final SwaptionPhysicalFixedIborSABRMethod METHOD_SWT_PHYS = SwaptionPhysicalFixedIborSABRMethod.getInstance();
private static final SwaptionCashFixedIborSABRMethod METHOD_SWT_CASH = SwaptionCashFixedIborSABRMethod.getInstance();
@Override
public MultipleCurrencyMulticurveSensitivity visit(final InstrumentDerivative derivative, final SABRSwaptionProviderInterface sabr) {
return derivative.accept(this, sabr);
}
// ----- Payment/Coupon ------
@Override
public MultipleCurrencyMulticurveSensitivity visitCouponCMS(final CouponCMS payment, final SABRSwaptionProviderInterface sabr) {
return METHOD_CMS_CPN.presentValueCurveSensitivity(payment, sabr);
}
@Override
public MultipleCurrencyMulticurveSensitivity visitCapFloorCMS(final CapFloorCMS payment, final SABRSwaptionProviderInterface sabr) {
return METHOD_CMS_CAP.presentValueCurveSensitivity(payment, sabr);
}
@Override
public MultipleCurrencyMulticurveSensitivity visitCapFloorCMSSpread(final CapFloorCMSSpread payment, final SABRSwaptionProviderInterface sabr) {
if (sabr.getSABRParameter() instanceof SABRInterestRateCorrelationParameters) {
// TODO: improve correlation data handling
final SABRInterestRateCorrelationParameters sabrCorrelation = (SABRInterestRateCorrelationParameters) sabr.getSABRParameter();
final CapFloorCMSSpreadSABRBinormalMethod method = new CapFloorCMSSpreadSABRBinormalMethod(sabrCorrelation.getCorrelation(), METHOD_CMS_CAP, METHOD_CMS_CPN);
return method.presentValueCurveSensitivity(payment, sabr);
}
throw new UnsupportedOperationException("The PresentValueCurveSensitivitySABRSwaptionCalculator visitor visitCapFloorCMSSpread requires a SABRInterestRateCorrelationParameters as data.");
}
// ----- Annuity ------
@Override
public MultipleCurrencyMulticurveSensitivity visitGenericAnnuity(final Annuity<? extends Payment> annuity, final SABRSwaptionProviderInterface sabr) {
ArgumentChecker.notNull(annuity, "Annuity");
MultipleCurrencyMulticurveSensitivity cs = visit(annuity.getNthPayment(0), sabr);
for (int loopp = 1; loopp < annuity.getNumberOfPayments(); loopp++) {
cs = cs.plus(visit(annuity.getNthPayment(loopp), sabr));
}
return cs;
}
// ----- Swaption ------
@Override
public MultipleCurrencyMulticurveSensitivity visitSwaptionPhysicalFixedIbor(final SwaptionPhysicalFixedIbor swaption, final SABRSwaptionProviderInterface sabr) {
return METHOD_SWT_PHYS.presentValueCurveSensitivity(swaption, sabr);
}
@Override
public MultipleCurrencyMulticurveSensitivity visitSwaptionCashFixedIbor(final SwaptionCashFixedIbor swaption, final SABRSwaptionProviderInterface sabr) {
return METHOD_SWT_CASH.presentValueCurveSensitivity(swaption, sabr);
}
@Override
public MultipleCurrencyMulticurveSensitivity visit(final InstrumentDerivative derivative) {
throw new UnsupportedOperationException();
}
}