/**
* For an instrument, this calculates the sensitivity of the present value (PV) to points on the
* yield curve(s) (i.e. dPV/dR at every point the instrument has sensitivity). The return format is
* a map with curve names (String) as keys and List of DoublesPair as the values; each list holds
* set of time (corresponding to point of the yield curve) and sensitivity pairs (i.e. dPV/dR at
* that time). <b>Note:</b> The length of the list is instrument dependent and may have repeated
* times (with the understanding the sensitivities should be summed).
*/
public class PresentValueCurveSensitivityCalculator
extends AbstractInstrumentDerivativeVisitor<YieldCurveBundle, Map<String, List<DoublesPair>>> {
// TODO: Change the output format from Map to InterestRateCurveSensitivity, which wraps the map
// and adds common functionality.
/** The method unique instance. */
private static final PresentValueCurveSensitivityCalculator INSTANCE =
new PresentValueCurveSensitivityCalculator();
/**
* Return the unique instance of the class.
*
* @return The instance.
*/
public static PresentValueCurveSensitivityCalculator getInstance() {
return INSTANCE;
}
/** Constructor. */
PresentValueCurveSensitivityCalculator() {}
/** The method used for OIS coupons. */
private static final CouponOISDiscountingMethod METHOD_OIS =
CouponOISDiscountingMethod.getInstance();
private static final CouponIborDiscountingMethod METHOD_IBOR =
CouponIborDiscountingMethod.getInstance();
private static final CouponIborGearingDiscountingMethod METHOD_IBOR_GEARING =
CouponIborGearingDiscountingMethod.getInstance();
private static final CashDiscountingMethod METHOD_DEPOSIT = CashDiscountingMethod.getInstance();
private static final DepositZeroDiscountingMethod METHOD_DEPOSIT_ZERO =
DepositZeroDiscountingMethod.getInstance();
private static final BillSecurityDiscountingMethod METHOD_BILL_SECURITY =
BillSecurityDiscountingMethod.getInstance();
private static final BillTransactionDiscountingMethod METHOD_BILL_TRANSACTION =
BillTransactionDiscountingMethod.getInstance();
@Override
public Map<String, List<DoublesPair>> visit(
final InstrumentDerivative instrument, final YieldCurveBundle curves) {
return instrument.accept(this, curves);
}
@Override
public Map<String, List<DoublesPair>> visitCash(final Cash cash, final YieldCurveBundle curves) {
return METHOD_DEPOSIT.presentValueCurveSensitivity(cash, curves).getSensitivities();
}
@Override
public Map<String, List<DoublesPair>> visitDepositZero(
final DepositZero deposit, final YieldCurveBundle curves) {
return METHOD_DEPOSIT_ZERO.presentValueCurveSensitivity(deposit, curves).getSensitivities();
}
@Override
public Map<String, List<DoublesPair>> visitForwardRateAgreement(
final ForwardRateAgreement fra, final YieldCurveBundle curves) {
final ForwardRateAgreementDiscountingMethod method =
ForwardRateAgreementDiscountingMethod.getInstance();
return method.presentValueCurveSensitivity(fra, curves).getSensitivities();
}
/** {@inheritDoc} Future transaction pricing without convexity adjustment. */
@Override
public Map<String, List<DoublesPair>> visitInterestRateFuture(
final InterestRateFuture future, final YieldCurveBundle curves) {
final InterestRateFutureDiscountingMethod method =
InterestRateFutureDiscountingMethod.getInstance();
return method.presentValueCurveSensitivity(future, curves).getSensitivities();
}
@Override
public Map<String, List<DoublesPair>> visitBondFixedSecurity(
final BondFixedSecurity bond, final YieldCurveBundle curves) {
final BondSecurityDiscountingMethod method = BondSecurityDiscountingMethod.getInstance();
return method.presentValueCurveSensitivity(bond, curves).getSensitivities();
}
@Override
public Map<String, List<DoublesPair>> visitBondFixedTransaction(
final BondFixedTransaction bond, final YieldCurveBundle curves) {
final BondTransactionDiscountingMethod method = BondTransactionDiscountingMethod.getInstance();
return method.presentValueSensitivity(bond, curves).getSensitivities();
}
@Override
public Map<String, List<DoublesPair>> visitBondIborTransaction(
final BondIborTransaction bond, final YieldCurveBundle curves) {
final BondTransactionDiscountingMethod method = BondTransactionDiscountingMethod.getInstance();
return method.presentValueSensitivity(bond, curves).getSensitivities();
}
@Override
public Map<String, List<DoublesPair>> visitBillSecurity(
final BillSecurity bill, final YieldCurveBundle curves) {
return METHOD_BILL_SECURITY.presentValueCurveSensitivity(bill, curves).getSensitivities();
}
@Override
public Map<String, List<DoublesPair>> visitBillTransaction(
final BillTransaction bill, final YieldCurveBundle curves) {
return METHOD_BILL_TRANSACTION.presentValueCurveSensitivity(bill, curves).getSensitivities();
}
@Override
public Map<String, List<DoublesPair>> visitBondFuture(
final BondFuture bondFuture, final YieldCurveBundle curves) {
Validate.notNull(curves);
Validate.notNull(bondFuture);
final BondFutureDiscountingMethod method = BondFutureDiscountingMethod.getInstance();
return method.presentValueCurveSensitivity(bondFuture, curves).getSensitivities();
}
@Override
public Map<String, List<DoublesPair>> visitSwap(
final Swap<?, ?> swap, final YieldCurveBundle curves) {
final Map<String, List<DoublesPair>> senseR = visit(swap.getSecondLeg(), curves);
final Map<String, List<DoublesPair>> senseP = visit(swap.getFirstLeg(), curves);
return addSensitivity(senseR, senseP);
}
@Override
public Map<String, List<DoublesPair>> visitFixedCouponSwap(
final SwapFixedCoupon<?> swap, final YieldCurveBundle curves) {
return visitSwap(swap, curves);
}
@Override
public Map<String, List<DoublesPair>> visitTenorSwap(
final TenorSwap<? extends Payment> swap, final YieldCurveBundle curves) {
return visitSwap(swap, curves);
}
@Override
public Map<String, List<DoublesPair>> visitFloatingRateNote(
final FloatingRateNote frn, final YieldCurveBundle curves) {
return visitSwap(frn, curves);
}
@Override
public Map<String, List<DoublesPair>> visitCrossCurrencySwap(
final CrossCurrencySwap ccs, final YieldCurveBundle curves) {
final Map<String, List<DoublesPair>> senseD = visit(ccs.getDomesticLeg(), curves);
final Map<String, List<DoublesPair>> senseF = visit(ccs.getForeignLeg(), curves);
// Note the sensitivities subtract rather than add here because the CCS is set up as domestic
// FRN minus a foreign FRN
return addSensitivity(senseD, multiplySensitivity(senseF, -ccs.getSpotFX()));
}
@Override
public Map<String, List<DoublesPair>> visitForexForward(
final ForexForward fx, final YieldCurveBundle curves) {
final Map<String, List<DoublesPair>> senseP1 = visit(fx.getPaymentCurrency1(), curves);
final Map<String, List<DoublesPair>> senseP2 = visit(fx.getPaymentCurrency2(), curves);
// Note the sensitivities add rather than subtract here because the FX Forward is set up as a
// notional in one currency PLUS a notional in another with the opposite sign
return InterestRateCurveSensitivityUtils.addSensitivity(
senseP1, multiplySensitivity(senseP2, fx.getSpotForexRate()));
}
@Override
public Map<String, List<DoublesPair>> visitGenericAnnuity(
final Annuity<? extends Payment> annuity, final YieldCurveBundle data) {
final Map<String, List<DoublesPair>> map = new HashMap<String, List<DoublesPair>>();
for (final Payment p : annuity.getPayments()) {
final Map<String, List<DoublesPair>> tempMap = visit(p, data);
for (final String name : tempMap.keySet()) {
if (!map.containsKey(name)) {
map.put(name, tempMap.get(name));
} else {
final List<DoublesPair> tempList = map.get(name);
tempList.addAll(tempMap.get(name));
map.put(name, tempList);
}
}
}
return map;
}
@Override
public Map<String, List<DoublesPair>> visitFixedPayment(
final PaymentFixed payment, final YieldCurveBundle data) {
final String curveName = payment.getFundingCurveName();
final YieldAndDiscountCurve curve = data.getCurve(curveName);
final double t = payment.getPaymentTime();
final DoublesPair s = new DoublesPair(t, -t * payment.getAmount() * curve.getDiscountFactor(t));
final List<DoublesPair> list = new ArrayList<DoublesPair>();
list.add(s);
final Map<String, List<DoublesPair>> result = new HashMap<String, List<DoublesPair>>();
result.put(curveName, list);
return result;
}
@Override
public Map<String, List<DoublesPair>> visitCouponIborSpread(
final CouponIborSpread payment, final YieldCurveBundle data) {
final String fundingCurveName = payment.getFundingCurveName();
final String liborCurveName = payment.getForwardCurveName();
final YieldAndDiscountCurve fundCurve = data.getCurve(fundingCurveName);
final YieldAndDiscountCurve liborCurve = data.getCurve(liborCurveName);
final double tPay = payment.getPaymentTime();
final double tStart = payment.getFixingPeriodStartTime();
final double tEnd = payment.getFixingPeriodEndTime();
final double dfPay = fundCurve.getDiscountFactor(tPay);
final double dfStart = liborCurve.getDiscountFactor(tStart);
final double dfEnd = liborCurve.getDiscountFactor(tEnd);
final double forward = (dfStart / dfEnd - 1) / payment.getFixingYearFraction();
final double notional = payment.getNotional();
final Map<String, List<DoublesPair>> result = new HashMap<String, List<DoublesPair>>();
List<DoublesPair> temp = new ArrayList<DoublesPair>();
DoublesPair s;
s =
new DoublesPair(
tPay,
-tPay
* dfPay
* notional
* (forward + payment.getSpread())
* payment.getPaymentYearFraction());
temp.add(s);
if (!liborCurveName.equals(fundingCurveName)) {
result.put(fundingCurveName, temp);
temp = new ArrayList<DoublesPair>();
}
final double ratio =
notional
* dfPay
* dfStart
/ dfEnd
* payment.getPaymentYearFraction()
/ payment.getFixingYearFraction();
s = new DoublesPair(tStart, -tStart * ratio);
temp.add(s);
s = new DoublesPair(tEnd, tEnd * ratio);
temp.add(s);
result.put(liborCurveName, temp);
return result;
}
@Override
public Map<String, List<DoublesPair>> visitCouponOIS(
final CouponOIS payment, final YieldCurveBundle data) {
final Map<String, List<DoublesPair>> result =
METHOD_OIS.presentValueCurveSensitivity(payment, data).getSensitivities();
return result;
}
@Override
public Map<String, List<DoublesPair>> visitFixedCouponAnnuity(
final AnnuityCouponFixed annuity, final YieldCurveBundle data) {
return visitGenericAnnuity(annuity, data);
}
@Override
public Map<String, List<DoublesPair>> visitCouponFixed(
final CouponFixed payment, final YieldCurveBundle data) {
return visitFixedPayment(payment.toPaymentFixed(), data);
}
@Override
public Map<String, List<DoublesPair>> visitForwardLiborAnnuity(
final AnnuityCouponIbor annuity, final YieldCurveBundle data) {
return visitGenericAnnuity(annuity, data);
}
@Override
public Map<String, List<DoublesPair>> visitFixedFloatSwap(
final FixedFloatSwap swap, final YieldCurveBundle data) {
return visitFixedCouponSwap(swap, data);
}
@Override
public Map<String, List<DoublesPair>> visitCouponCMS(
final CouponCMS payment, final YieldCurveBundle data) {
final CouponCMSDiscountingMethod method = CouponCMSDiscountingMethod.getInstance();
return method.presentValueSensitivity(payment, data).getSensitivities();
}
@Override
public Map<String, List<DoublesPair>> visitCouponIbor(
final CouponIbor coupon, final YieldCurveBundle curves) {
return METHOD_IBOR.presentValueCurveSensitivity(coupon, curves).getSensitivities();
}
@Override
public Map<String, List<DoublesPair>> visitCouponIborGearing(
final CouponIborGearing coupon, final YieldCurveBundle curves) {
return METHOD_IBOR_GEARING.presentValueCurveSensitivity(coupon, curves).getSensitivities();
}
/**
* Compute the sensitivity of the discount factor at a given time.
*
* @param curveName The curve name associated to the discount factor.
* @param curve The curve from which the discount factor should be computed.
* @param time The time
* @return The sensitivity.
*/
public static Map<String, List<DoublesPair>> discountFactorSensitivity(
final String curveName, final YieldAndDiscountCurve curve, final double time) {
final DoublesPair s = new DoublesPair(time, -time * curve.getDiscountFactor(time));
final List<DoublesPair> list = new ArrayList<DoublesPair>();
list.add(s);
final Map<String, List<DoublesPair>> result = new HashMap<String, List<DoublesPair>>();
result.put(curveName, list);
return result;
}
}
@Override
public Map<String, List<DoublesPair>> visitCash(final Cash cash, final YieldCurveBundle curves) {
return METHOD_DEPOSIT.presentValueCurveSensitivity(cash, curves).getSensitivities();
}
/**
* Compute the spread to be added to the rate of the instrument for which the present value of the
* instrument is zero. The "rate" can be a "rate" or a "yield" and will depend of each instrument.
*
* @deprecated {@link YieldCurveBundle} is deprecated
*/
@Deprecated
public final class ParSpreadRateCalculator
extends InstrumentDerivativeVisitorAdapter<YieldCurveBundle, Double> {
/** The unique instance of the calculator. */
private static final ParSpreadRateCalculator INSTANCE = new ParSpreadRateCalculator();
/**
* Gets the calculator instance.
*
* @return The calculator.
*/
public static ParSpreadRateCalculator getInstance() {
return INSTANCE;
}
/** Constructor. */
private ParSpreadRateCalculator() {}
/** The methods and calculators. */
private static final PresentValueMCACalculator PVMCC = PresentValueMCACalculator.getInstance();
private static final PresentValueBasisPointCalculator PVBPC =
PresentValueBasisPointCalculator.getInstance();
private static final CashDiscountingMethod METHOD_DEPOSIT = CashDiscountingMethod.getInstance();
private static final DepositZeroDiscountingMethod METHOD_DEPOSIT_ZERO =
DepositZeroDiscountingMethod.getInstance();
private static final ForwardRateAgreementDiscountingMethod METHOD_FRA =
ForwardRateAgreementDiscountingMethod.getInstance();
// private static final InterestRateFutureTransactionDiscountingMethod
// METHOD_IR_FUTURES_TRANSACTION = InterestRateFutureTransactionDiscountingMethod.getInstance();
private static final InterestRateFutureSecurityDiscountingMethod METHOD_IR_FUTURES_SECURITY =
InterestRateFutureSecurityDiscountingMethod.getInstance();
@Override
public Double visitCash(final Cash deposit, final YieldCurveBundle curves) {
return METHOD_DEPOSIT.parSpread(deposit, curves);
}
@Override
public Double visitDepositZero(final DepositZero deposit, final YieldCurveBundle curves) {
return METHOD_DEPOSIT_ZERO.parSpread(deposit, curves);
}
/**
* For swaps the ParSpread is the spread to be added on each coupon of the first leg to obtain a
* present value of zero. It is computed as the opposite of the present value of the swap divided
* by the present value of a basis point of the first leg (as computed by the
* PresentValueBasisPointCalculator).
*
* @param swap The swap.
* @param curves The yield curve bundle.
* @return The par spread.
*/
@Override
public Double visitSwap(final Swap<?, ?> swap, final YieldCurveBundle curves) {
Validate.notNull(curves);
Validate.notNull(swap);
return -curves
.getFxRates()
.convert(swap.accept(PVMCC, curves), swap.getFirstLeg().getCurrency())
.getAmount()
/ swap.getFirstLeg().accept(PVBPC, curves);
}
@Override
public Double visitFixedCouponSwap(final SwapFixedCoupon<?> swap, final YieldCurveBundle curves) {
return visitSwap(swap, curves);
}
/**
* For ForwardRateAgreement the ParSpread is the spread to be added to the fixed rate to obtain a
* present value of zero.
*
* @param fra The forward rate agreement.
* @param curves The yield curve bundle.
* @return The par spread.
*/
@Override
public Double visitForwardRateAgreement(
final ForwardRateAgreement fra, final YieldCurveBundle curves) {
Validate.notNull(curves);
Validate.notNull(fra);
return METHOD_FRA.parSpread(fra, curves);
}
/**
* For InterestRateFutures the ParSpread is the spread to be added to the reference price to
* obtain a present value of zero.
*
* @param future The futures.
* @param curves The yield curve bundle.
* @return The par spread.
*/
@Override
public Double visitInterestRateFutureTransaction(
final InterestRateFutureTransaction future, final YieldCurveBundle curves) {
return -(METHOD_IR_FUTURES_SECURITY.price(future.getUnderlying(), curves)
- future.getReferencePrice());
}
// /**
// * For InterestRateFutures the ParSpread is the spread to be added to the reference price to
// obtain a present value of zero.
// * @param future The futures.
// * @param curves The yield curve bundle.
// * @return The par spread.
// */
// @Override
// public Double visitInterestRateFutureSecurity(final InterestRateFutureSecurity future, final
// YieldCurveBundle curves) {
// return -(METHOD_IR_FUTURES_SECURITY.presentValue(future, curves).getAmount());
// }
}
@Override
public Double visitCash(final Cash deposit, final YieldCurveBundle curves) {
return METHOD_DEPOSIT.parSpread(deposit, curves);
}
/**
* Constructs a single yield curve and its Jacobian from an FX-implied yield curve calculation
* configuration and a yield curve definition that contains <b>only</b> {@link
* StripInstrumentType#CASH} strips. The transformation of the yield curve allows risk to be
* displayed with respect to implied deposit rates, not FX forwards.
*/
public class ImpliedDepositCurveFunction extends AbstractFunction {
/** The calculation method property value */
public static final String IMPLIED_DEPOSIT = "ImpliedDeposit";
/** The Cash instrument method */
private static final CashDiscountingMethod METHOD_CASH = CashDiscountingMethod.getInstance();
/** Calculates the par rate */
private static final ParRateCalculator PAR_RATE_CALCULATOR = ParRateCalculator.getInstance();
/** Calculates the sensitivity of the par rate to the curves */
private static final ParRateCurveSensitivityCalculator PAR_RATE_SENSITIVITY_CALCULATOR =
ParRateCurveSensitivityCalculator.getInstance();
/** The business day convention used for FX forward dates computation * */
private static final BusinessDayConvention MOD_FOL = BusinessDayConventions.MODIFIED_FOLLOWING;
/** The logger */
private static final Logger s_logger = LoggerFactory.getLogger(ImpliedDepositCurveFunction.class);
/** The curve name */
private final String _curveCalculationConfig;
private ConfigSourceQuery<MultiCurveCalculationConfig> _multiCurveCalculationConfig;
private ConfigSourceQuery<YieldCurveDefinition> _yieldCurveDefinition;
/** @param curveCalculationConfig The curve name, not null */
public ImpliedDepositCurveFunction(final String curveCalculationConfig) {
ArgumentChecker.notNull(curveCalculationConfig, "curve name");
_curveCalculationConfig = curveCalculationConfig;
}
@Override
public void init(final FunctionCompilationContext context) {
_multiCurveCalculationConfig =
ConfigSourceQuery.init(context, this, MultiCurveCalculationConfig.class);
_yieldCurveDefinition = ConfigSourceQuery.init(context, this, YieldCurveDefinition.class);
}
@Override
public CompiledFunctionDefinition compile(
final FunctionCompilationContext context, final Instant atInstant) {
final MultiCurveCalculationConfig impliedConfiguration =
_multiCurveCalculationConfig.get(_curveCalculationConfig);
if (impliedConfiguration == null) {
throw new OpenGammaRuntimeException(
"Multi-curve calculation called " + _curveCalculationConfig + " was null");
}
ComputationTarget target =
context.getComputationTargetResolver().resolve(impliedConfiguration.getTarget());
if (!(target.getValue() instanceof Currency)) {
throw new OpenGammaRuntimeException(
"Target of curve calculation configuration was not a currency");
}
final Currency impliedCurrency = (Currency) target.getValue();
if (!IMPLIED_DEPOSIT.equals(impliedConfiguration.getCalculationMethod())) {
throw new OpenGammaRuntimeException(
"Curve calculation method was not "
+ IMPLIED_DEPOSIT
+ " for configuration called "
+ _curveCalculationConfig);
}
final String[] impliedCurveNames = impliedConfiguration.getYieldCurveNames();
if (impliedCurveNames.length != 1) {
throw new OpenGammaRuntimeException(
"Can only handle configurations with a single implied curve");
}
final LinkedHashMap<String, String[]> originalConfigurationName =
impliedConfiguration.getExogenousConfigData();
if (originalConfigurationName == null || originalConfigurationName.size() != 1) {
throw new OpenGammaRuntimeException("Need a configuration with one exogenous configuration");
}
final Map.Entry<String, String[]> entry =
Iterables.getOnlyElement(originalConfigurationName.entrySet());
final String[] originalCurveNames = entry.getValue();
if (originalCurveNames.length != 1) {
s_logger.warn("Found more than one exogenous configuration name; using only the first");
}
final MultiCurveCalculationConfig originalConfiguration =
_multiCurveCalculationConfig.get(entry.getKey());
if (originalConfiguration == null) {
throw new OpenGammaRuntimeException(
"Multi-curve calculation called " + entry.getKey() + " was null");
}
target = context.getComputationTargetResolver().resolve(originalConfiguration.getTarget());
if (!(target.getValue() instanceof Currency)) {
throw new OpenGammaRuntimeException(
"Target of curve calculation configuration was not a currency");
}
final Currency originalCurrency = (Currency) target.getValue();
if (!originalCurrency.equals(impliedCurrency)) {
throw new OpenGammaRuntimeException(
"Currency targets for configurations "
+ _curveCalculationConfig
+ " and "
+ entry.getKey()
+ " did not match");
}
final YieldCurveDefinition impliedDefinition =
_yieldCurveDefinition.get(impliedCurveNames[0] + "_" + impliedCurrency.getCode());
if (impliedDefinition == null) {
throw new OpenGammaRuntimeException(
"Could not get implied definition called "
+ impliedCurveNames[0]
+ "_"
+ impliedCurrency.getCode());
}
final Set<FixedIncomeStrip> strips = impliedDefinition.getStrips();
for (final FixedIncomeStrip strip : strips) {
if (strip.getInstrumentType() != StripInstrumentType.CASH) {
throw new OpenGammaRuntimeException(
"Can only handle yield curve definitions with CASH strips");
}
}
final ZonedDateTime atZDT = ZonedDateTime.ofInstant(atInstant, ZoneOffset.UTC);
return new MyCompiledFunction(
atZDT.with(LocalTime.MIDNIGHT),
atZDT.plusDays(1).with(LocalTime.MIDNIGHT).minusNanos(1000000),
impliedConfiguration,
impliedDefinition,
originalConfiguration,
originalCurveNames[0]);
};
private class MyCompiledFunction extends AbstractInvokingCompiledFunction {
/** The definition of the implied curve */
private final YieldCurveDefinition _impliedDefinition;
/** The implied curve calculation configuration */
private final MultiCurveCalculationConfig _impliedConfiguration;
/** The original curve calculation configuration */
private final MultiCurveCalculationConfig _originalConfiguration;
/** The implied curve name */
private final String _impliedCurveName;
/** The original curve name */
private final String _originalCurveName;
/** The currency */
private final Currency _currency;
/** The interpolator */
private final String _interpolatorName;
/** The left extrapolator */
private final String _leftExtrapolatorName;
/** The right extrapolator */
private final String _rightExtrapolatorName;
public MyCompiledFunction(
final ZonedDateTime earliestInvokation,
final ZonedDateTime latestInvokation,
final MultiCurveCalculationConfig impliedConfiguration,
final YieldCurveDefinition impliedDefinition,
final MultiCurveCalculationConfig originalConfiguration,
final String originalCurveName) {
super(earliestInvokation, latestInvokation);
_impliedConfiguration = impliedConfiguration;
_impliedDefinition = impliedDefinition;
_originalConfiguration = originalConfiguration;
_impliedCurveName = impliedDefinition.getName();
_originalCurveName = originalCurveName;
_currency = impliedDefinition.getCurrency();
_interpolatorName = impliedDefinition.getInterpolatorName();
_leftExtrapolatorName = impliedDefinition.getLeftExtrapolatorName();
_rightExtrapolatorName = impliedDefinition.getRightExtrapolatorName();
}
@Override
public Set<ComputedValue> execute(
final FunctionExecutionContext executionContext,
final FunctionInputs inputs,
final ComputationTarget target,
final Set<ValueRequirement> desiredValues)
throws AsynchronousExecution {
final Object originalCurveObject = inputs.getValue(YIELD_CURVE);
if (originalCurveObject == null) {
throw new OpenGammaRuntimeException("Could not get original curve");
}
ValueProperties resultCurveProperties = null;
String absoluteToleranceName = null;
String relativeToleranceName = null;
String iterationsName = null;
String decompositionName = null;
String useFiniteDifferenceName = null;
for (final ValueRequirement desiredValue : desiredValues) {
if (desiredValue.getValueName().equals(YIELD_CURVE)) {
absoluteToleranceName =
desiredValue.getConstraint(
MultiYieldCurvePropertiesAndDefaults.PROPERTY_ROOT_FINDER_ABSOLUTE_TOLERANCE);
relativeToleranceName =
desiredValue.getConstraint(
MultiYieldCurvePropertiesAndDefaults.PROPERTY_ROOT_FINDER_RELATIVE_TOLERANCE);
iterationsName =
desiredValue.getConstraint(
MultiYieldCurvePropertiesAndDefaults.PROPERTY_ROOT_FINDER_MAX_ITERATIONS);
decompositionName =
desiredValue.getConstraint(
MultiYieldCurvePropertiesAndDefaults.PROPERTY_DECOMPOSITION);
useFiniteDifferenceName =
desiredValue.getConstraint(
MultiYieldCurvePropertiesAndDefaults.PROPERTY_USE_FINITE_DIFFERENCE);
resultCurveProperties = desiredValue.getConstraints().copy().get();
break;
}
}
if (resultCurveProperties == null) {
throw new OpenGammaRuntimeException("Could not get result curve properties");
}
final ValueProperties resultJacobianProperties = resultCurveProperties.withoutAny(CURVE);
ZonedDateTime valuationDateTime =
executionContext
.getValuationTime()
.atZone(executionContext.getValuationClock().getZone());
final HolidaySource holidaySource =
OpenGammaExecutionContext.getHolidaySource(executionContext);
final ConventionSource conventionSource =
OpenGammaExecutionContext.getConventionSource(executionContext);
final Calendar calendar = CalendarUtils.getCalendar(holidaySource, _currency);
final DepositConvention convention =
conventionSource.getSingle(
ExternalId.of(SCHEME_NAME, getConventionName(_currency, DEPOSIT)),
DepositConvention.class);
final int spotLag = convention.getSettlementDays();
final ExternalId conventionSettlementRegion = convention.getRegionCalendar();
ZonedDateTime spotDate;
if (spotLag == 0 && conventionSettlementRegion == null) {
spotDate = valuationDateTime;
} else {
spotDate = ScheduleCalculator.getAdjustedDate(valuationDateTime, spotLag, calendar);
;
}
final YieldCurveBundle curves = new YieldCurveBundle();
final String fullYieldCurveName = _originalCurveName + "_" + _currency;
curves.setCurve(fullYieldCurveName, (YieldAndDiscountCurve) originalCurveObject);
final int n = _impliedDefinition.getStrips().size();
final double[] t = new double[n];
final double[] r = new double[n];
int i = 0;
final DayCount dayCount =
DayCountFactory.INSTANCE.getDayCount(
"Act/360"); // TODO: Get the convention from the curve.
final String impliedDepositCurveName = _curveCalculationConfig + "_" + _currency.getCode();
final List<InstrumentDerivative> derivatives = new ArrayList<>();
for (final FixedIncomeStrip strip : _impliedDefinition.getStrips()) {
final Tenor tenor = strip.getCurveNodePointTime();
final ZonedDateTime paymentDate =
ScheduleCalculator.getAdjustedDate(
spotDate, tenor.getPeriod(), MOD_FOL, calendar, true);
final double startTime = TimeCalculator.getTimeBetween(valuationDateTime, spotDate);
final double endTime = TimeCalculator.getTimeBetween(valuationDateTime, paymentDate);
final double accrualFactor = dayCount.getDayCountFraction(spotDate, paymentDate, calendar);
final Cash cashFXCurve =
new Cash(_currency, startTime, endTime, 1, 0, accrualFactor, fullYieldCurveName);
final double parRate = METHOD_CASH.parRate(cashFXCurve, curves);
final Cash cashDepositCurve =
new Cash(_currency, startTime, endTime, 1, 0, accrualFactor, impliedDepositCurveName);
derivatives.add(cashDepositCurve);
t[i] = endTime;
r[i++] = parRate;
}
final CombinedInterpolatorExtrapolator interpolator =
CombinedInterpolatorExtrapolatorFactory.getInterpolator(
_interpolatorName, _leftExtrapolatorName, _rightExtrapolatorName);
final double absoluteTolerance = Double.parseDouble(absoluteToleranceName);
final double relativeTolerance = Double.parseDouble(relativeToleranceName);
final int iterations = Integer.parseInt(iterationsName);
final Decomposition<?> decomposition =
DecompositionFactory.getDecomposition(decompositionName);
final boolean useFiniteDifference = Boolean.parseBoolean(useFiniteDifferenceName);
final LinkedHashMap<String, double[]> curveNodes = new LinkedHashMap<>();
final LinkedHashMap<String, Interpolator1D> interpolators = new LinkedHashMap<>();
curveNodes.put(impliedDepositCurveName, t);
interpolators.put(impliedDepositCurveName, interpolator);
final FXMatrix fxMatrix = new FXMatrix();
final YieldCurveBundle knownCurve = new YieldCurveBundle();
final MultipleYieldCurveFinderDataBundle data =
new MultipleYieldCurveFinderDataBundle(
derivatives, r, knownCurve, curveNodes, interpolators, useFiniteDifference, fxMatrix);
final NewtonVectorRootFinder rootFinder =
new BroydenVectorRootFinder(
absoluteTolerance, relativeTolerance, iterations, decomposition);
final Function1D<DoubleMatrix1D, DoubleMatrix1D> curveCalculator =
new MultipleYieldCurveFinderFunction(data, PAR_RATE_CALCULATOR);
final Function1D<DoubleMatrix1D, DoubleMatrix2D> jacobianCalculator =
new MultipleYieldCurveFinderJacobian(data, PAR_RATE_SENSITIVITY_CALCULATOR);
final double[] fittedYields =
rootFinder.getRoot(curveCalculator, jacobianCalculator, new DoubleMatrix1D(r)).getData();
final DoubleMatrix2D jacobianMatrix =
jacobianCalculator.evaluate(new DoubleMatrix1D(fittedYields));
final YieldCurve impliedDepositCurve =
new YieldCurve(
impliedDepositCurveName,
InterpolatedDoublesCurve.from(t, fittedYields, interpolator));
final ValueSpecification curveSpec =
new ValueSpecification(YIELD_CURVE, target.toSpecification(), resultCurveProperties);
final ValueSpecification jacobianSpec =
new ValueSpecification(
YIELD_CURVE_JACOBIAN, target.toSpecification(), resultJacobianProperties);
return Sets.newHashSet(
new ComputedValue(curveSpec, impliedDepositCurve),
new ComputedValue(jacobianSpec, jacobianMatrix));
}
@Override
public ComputationTargetType getTargetType() {
return ComputationTargetType.CURRENCY;
}
@Override
public Set<ValueSpecification> getResults(
final FunctionCompilationContext compilationContext, final ComputationTarget target) {
final ValueProperties curveProperties =
getCurveProperties(_impliedCurveName, _impliedConfiguration.getCalculationConfigName());
final ValueProperties jacobianProperties =
getJacobianProperties(_impliedConfiguration.getCalculationConfigName());
final ComputationTargetSpecification targetSpec = target.toSpecification();
final ValueSpecification curve =
new ValueSpecification(YIELD_CURVE, targetSpec, curveProperties);
final ValueSpecification jacobian =
new ValueSpecification(YIELD_CURVE_JACOBIAN, targetSpec, jacobianProperties);
return Sets.newHashSet(curve, jacobian);
}
@Override
public Set<ValueRequirement> getRequirements(
final FunctionCompilationContext compilationContext,
final ComputationTarget target,
final ValueRequirement desiredValue) {
final ValueProperties constraints = desiredValue.getConstraints();
final Set<String> rootFinderAbsoluteTolerance =
constraints.getValues(PROPERTY_ROOT_FINDER_ABSOLUTE_TOLERANCE);
if (rootFinderAbsoluteTolerance == null || rootFinderAbsoluteTolerance.size() != 1) {
return null;
}
final Set<String> rootFinderRelativeTolerance =
constraints.getValues(PROPERTY_ROOT_FINDER_RELATIVE_TOLERANCE);
if (rootFinderRelativeTolerance == null || rootFinderRelativeTolerance.size() != 1) {
return null;
}
final Set<String> maxIterations = constraints.getValues(PROPERTY_ROOT_FINDER_MAX_ITERATIONS);
if (maxIterations == null || maxIterations.size() != 1) {
return null;
}
final Set<String> decomposition = constraints.getValues(PROPERTY_DECOMPOSITION);
if (decomposition == null || decomposition.size() != 1) {
return null;
}
final Set<String> useFiniteDifference = constraints.getValues(PROPERTY_USE_FINITE_DIFFERENCE);
if (useFiniteDifference == null || useFiniteDifference.size() != 1) {
return null;
}
if (!_originalConfiguration.getTarget().equals(target.toSpecification())) {
s_logger.info(
"Invalid target, was {} - expected {}", target, _originalConfiguration.getTarget());
return null;
}
final ValueProperties properties =
ValueProperties.builder()
.with(CURVE_CALCULATION_METHOD, _originalConfiguration.getCalculationMethod())
.with(CURVE_CALCULATION_CONFIG, _originalConfiguration.getCalculationConfigName())
.with(CURVE, _originalCurveName)
.get();
return Collections.singleton(
new ValueRequirement(YIELD_CURVE, target.toSpecification(), properties));
}
/**
* Gets the properties of the implied yield curve.
*
* @param curveName The implied curve name
* @return The properties
*/
private ValueProperties getCurveProperties(
final String curveName, final String curveCalculationConfig) {
return createValueProperties()
.with(CURVE_CALCULATION_METHOD, IMPLIED_DEPOSIT)
.with(CURVE, curveName)
.with(CURVE_CALCULATION_CONFIG, curveCalculationConfig)
.withAny(PROPERTY_ROOT_FINDER_ABSOLUTE_TOLERANCE)
.withAny(PROPERTY_ROOT_FINDER_RELATIVE_TOLERANCE)
.withAny(PROPERTY_ROOT_FINDER_MAX_ITERATIONS)
.withAny(PROPERTY_DECOMPOSITION)
.withAny(PROPERTY_USE_FINITE_DIFFERENCE)
.with(InterpolatedDataProperties.X_INTERPOLATOR_NAME, _interpolatorName)
.with(InterpolatedDataProperties.LEFT_X_EXTRAPOLATOR_NAME, _leftExtrapolatorName)
.with(InterpolatedDataProperties.RIGHT_X_EXTRAPOLATOR_NAME, _rightExtrapolatorName)
.get();
}
/**
* Gets the properties of the Jacobian with no values set.
*
* @return The properties.
*/
private ValueProperties getJacobianProperties(final String curveCalculationConfig) {
return createValueProperties()
.with(CURVE_CALCULATION_METHOD, IMPLIED_DEPOSIT)
.with(CURVE_CALCULATION_CONFIG, curveCalculationConfig)
.withAny(PROPERTY_ROOT_FINDER_ABSOLUTE_TOLERANCE)
.withAny(PROPERTY_ROOT_FINDER_RELATIVE_TOLERANCE)
.withAny(PROPERTY_ROOT_FINDER_MAX_ITERATIONS)
.withAny(PROPERTY_DECOMPOSITION)
.withAny(PROPERTY_USE_FINITE_DIFFERENCE)
.with(InterpolatedDataProperties.X_INTERPOLATOR_NAME, _interpolatorName)
.with(InterpolatedDataProperties.LEFT_X_EXTRAPOLATOR_NAME, _leftExtrapolatorName)
.with(InterpolatedDataProperties.RIGHT_X_EXTRAPOLATOR_NAME, _rightExtrapolatorName)
.get();
}
}
}