/**
* Copyright (C) 2012 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.financial.analytics.model.futureoption;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.threeten.bp.ZonedDateTime;
import com.google.common.collect.Iterables;
import com.google.common.collect.Sets;
import com.opengamma.OpenGammaRuntimeException;
import com.opengamma.analytics.financial.equity.StaticReplicationDataBundle;
import com.opengamma.analytics.financial.instrument.InstrumentDefinition;
import com.opengamma.analytics.financial.interestrate.InstrumentDerivative;
import com.opengamma.analytics.financial.model.interestrate.curve.ForwardCurve;
import com.opengamma.analytics.financial.model.interestrate.curve.YieldCurve;
import com.opengamma.analytics.financial.model.volatility.surface.BlackVolatilitySurface;
import com.opengamma.analytics.financial.provider.calculator.generic.LastTimeCalculator;
import com.opengamma.core.holiday.HolidaySource;
import com.opengamma.core.region.RegionSource;
import com.opengamma.core.security.Security;
import com.opengamma.core.security.SecuritySource;
import com.opengamma.core.value.MarketDataRequirementNames;
import com.opengamma.engine.ComputationTarget;
import com.opengamma.engine.ComputationTargetSpecification;
import com.opengamma.engine.function.AbstractFunction;
import com.opengamma.engine.function.FunctionCompilationContext;
import com.opengamma.engine.function.FunctionExecutionContext;
import com.opengamma.engine.function.FunctionInputs;
import com.opengamma.engine.target.ComputationTargetType;
import com.opengamma.engine.value.ComputedValue;
import com.opengamma.engine.value.ValueProperties;
import com.opengamma.engine.value.ValuePropertyNames;
import com.opengamma.engine.value.ValueRequirement;
import com.opengamma.engine.value.ValueRequirementNames;
import com.opengamma.engine.value.ValueSpecification;
import com.opengamma.financial.OpenGammaCompilationContext;
import com.opengamma.financial.analytics.conversion.CommodityFutureOptionConverter;
import com.opengamma.financial.analytics.conversion.EquityOptionsConverter;
import com.opengamma.financial.analytics.conversion.FutureSecurityConverterDeprecated;
import com.opengamma.financial.analytics.model.CalculationPropertyNamesAndValues;
import com.opengamma.financial.analytics.model.InstrumentTypeProperties;
import com.opengamma.financial.analytics.model.curve.forward.ForwardCurveValuePropertyNames;
import com.opengamma.financial.analytics.model.equity.option.EquityOptionFunction;
import com.opengamma.financial.convention.ConventionBundleSource;
import com.opengamma.financial.security.FinancialSecurity;
import com.opengamma.financial.security.FinancialSecurityUtils;
import com.opengamma.financial.security.FinancialSecurityVisitor;
import com.opengamma.financial.security.FinancialSecurityVisitorAdapter;
import com.opengamma.id.ExternalId;
import com.opengamma.util.ArgumentChecker;
import com.opengamma.util.async.AsynchronousExecution;
/**
* Base class for futures option pricing and analytics
*/
public abstract class FutureOptionFunction extends AbstractFunction.NonCompiledInvoker {
/** The values that the function can calculate */
private final String[] _valueRequirementNames;
/** Converts securities into a form that analytics can use */
private FinancialSecurityVisitor<InstrumentDefinition<?>> _converter;
/**
* @param valueRequirementNames The value requirement names, not null or empty
*/
public FutureOptionFunction(final String[] valueRequirementNames) {
ArgumentChecker.notEmpty(valueRequirementNames, "value requirement names");
_valueRequirementNames = valueRequirementNames;
}
@Override
/**
* {@inheritDoc}
* Pass all conventions required to function to convert security to definition
*/
public void init(final FunctionCompilationContext context) {
final SecuritySource securitySource = OpenGammaCompilationContext.getSecuritySource(context);
final HolidaySource holidaySource = OpenGammaCompilationContext.getHolidaySource(context);
final RegionSource regionSource = OpenGammaCompilationContext.getRegionSource(context);
final ConventionBundleSource conventionSource = OpenGammaCompilationContext.getConventionBundleSource(context);
final FutureSecurityConverterDeprecated futureSecurityConverter = new FutureSecurityConverterDeprecated(null, null);
final FinancialSecurityVisitor<InstrumentDefinition<?>> commodityFutureOption = new CommodityFutureOptionConverter(securitySource, holidaySource, conventionSource, regionSource);
final FinancialSecurityVisitor<InstrumentDefinition<?>> equityFutureOption = new EquityOptionsConverter(futureSecurityConverter, securitySource);
_converter = FinancialSecurityVisitorAdapter.<InstrumentDefinition<?>>builder()
.commodityFutureOptionSecurityVisitor(commodityFutureOption)
.equityIndexFutureOptionVisitor(equityFutureOption).create();
}
@Override
public Set<ComputedValue> execute(final FunctionExecutionContext executionContext, final FunctionInputs inputs, final ComputationTarget target,
final Set<ValueRequirement> desiredValues) throws AsynchronousExecution {
final ZonedDateTime now = ZonedDateTime.now(executionContext.getValuationClock());
final FinancialSecurity security = (FinancialSecurity) target.getSecurity();
final ExternalId underlyingId = FinancialSecurityUtils.getUnderlyingId(security);
final InstrumentDefinition<?> defn = security.accept(_converter);
final InstrumentDerivative derivative = defn.toDerivative(now);
final double timeToExpiry = derivative.accept(LastTimeCalculator.getInstance());
if (timeToExpiry < 0.0) {
throw new OpenGammaRuntimeException("Future option " + security + " has already settled.");
}
final StaticReplicationDataBundle market = buildMarketBundle(underlyingId, executionContext, inputs, target, desiredValues);
final ValueRequirement desiredValue = desiredValues.iterator().next();
final ValueProperties resultProperties = desiredValue.getConstraints().copy()
.with(ValuePropertyNames.FUNCTION, getUniqueId())
.get();
return computeValues(derivative, market, inputs, desiredValues, target.toSpecification(), resultProperties);
}
/**
* Constructs a market data bundle for use in the analytics library.
* @param underlyingId The id of the underlying
* @param executionContext The execution context
* @param inputs The market data inputs
* @param target The computation target
* @param desiredValues The desired values
* @return The market data in a form that the analytics library can use
*/
protected StaticReplicationDataBundle buildMarketBundle(final ExternalId underlyingId, final FunctionExecutionContext executionContext,
final FunctionInputs inputs, final ComputationTarget target, final Set<ValueRequirement> desiredValues) {
// 1. The Discounting Curve
final Object discountingObject = inputs.getValue(ValueRequirementNames.YIELD_CURVE);
if (discountingObject == null) {
throw new OpenGammaRuntimeException("Could not get Discounting Curve");
}
if (!(discountingObject instanceof YieldCurve)) { //TODO: make it more generic
throw new IllegalArgumentException("Can only handle YieldCurve");
}
final YieldCurve discountingCurve = (YieldCurve) discountingObject;
// 2. The Vol Surface
final Object volSurfaceObject = inputs.getValue(ValueRequirementNames.BLACK_VOLATILITY_SURFACE);
if (volSurfaceObject == null || !(volSurfaceObject instanceof BlackVolatilitySurface)) {
throw new OpenGammaRuntimeException("Could not get Volatility Surface");
}
final BlackVolatilitySurface<?> blackVolSurf = (BlackVolatilitySurface<?>) volSurfaceObject;
// 3. Forward Curve
final Object forwardCurveObject = inputs.getValue(ValueRequirementNames.FORWARD_CURVE);
if (forwardCurveObject == null) {
throw new OpenGammaRuntimeException("Could not get forward curve");
}
final ForwardCurve forwardCurve = (ForwardCurve) forwardCurveObject;
final StaticReplicationDataBundle market = new StaticReplicationDataBundle(blackVolSurf, discountingCurve, forwardCurve);
return market;
}
/**
* Calculates the value
* @param derivative The derivative
* @param market The market data bundle
* @param inputs The function inputs
* @param desiredValues The desired values
* @param targetSpec The computation target specification
* @param resultProperties The result properties
* @return A set of values
*/
protected abstract Set<ComputedValue> computeValues(final InstrumentDerivative derivative, final StaticReplicationDataBundle market, final FunctionInputs inputs,
final Set<ValueRequirement> desiredValues, final ComputationTargetSpecification targetSpec, final ValueProperties resultProperties);
@Override
public Set<ValueSpecification> getResults(final FunctionCompilationContext context, final ComputationTarget target) {
final ValueProperties properties = ValueProperties.all();
final Set<ValueSpecification> results = new HashSet<>();
for (final String valueRequirementName : _valueRequirementNames) {
results.add(new ValueSpecification(valueRequirementName, target.toSpecification(), properties));
}
return results;
}
@Override
public Set<ValueRequirement> getRequirements(final FunctionCompilationContext context, final ComputationTarget target, final ValueRequirement desiredValue) {
final ValueProperties constraints = desiredValue.getConstraints();
final Set<String> calculationMethod = constraints.getValues(ValuePropertyNames.CALCULATION_METHOD);
if (calculationMethod != null && calculationMethod.size() == 1) {
if (!getCalculationMethod().equals(Iterables.getOnlyElement(calculationMethod))) {
return null;
}
}
final FinancialSecurity security = (FinancialSecurity) target.getSecurity();
final Set<String> discountingCurveNames = constraints.getValues(EquityOptionFunction.PROPERTY_DISCOUNTING_CURVE_NAME);
if (discountingCurveNames == null || discountingCurveNames.size() != 1) {
return null;
}
final Set<String> discountingCurveConfigs = constraints.getValues(EquityOptionFunction.PROPERTY_DISCOUNTING_CURVE_CONFIG);
if (discountingCurveConfigs == null || discountingCurveConfigs.size() != 1) {
return null;
}
final String discountingCurveName = Iterables.getOnlyElement(discountingCurveNames);
final String discountingCurveConfig = Iterables.getOnlyElement(discountingCurveConfigs);
final ValueRequirement discountingReq = getDiscountCurveRequirement(discountingCurveName, discountingCurveConfig, security);
final Set<String> surfaceNames = constraints.getValues(ValuePropertyNames.SURFACE);
if (surfaceNames == null || surfaceNames.size() != 1) {
return null;
}
final String volSurfaceName = Iterables.getOnlyElement(surfaceNames);
final Set<String> surfaceCalculationMethods = constraints.getValues(ValuePropertyNames.SURFACE_CALCULATION_METHOD);
if (surfaceCalculationMethods == null || surfaceCalculationMethods.size() != 1) {
return null;
}
final String surfaceCalculationMethod = Iterables.getOnlyElement(surfaceCalculationMethods);
final Set<String> forwardCurveNames = constraints.getValues(ForwardCurveValuePropertyNames.PROPERTY_FORWARD_CURVE_NAME);
if (forwardCurveNames == null || forwardCurveNames.size() != 1) {
return null;
}
final Set<String> forwardCurveCalculationMethods = constraints.getValues(ForwardCurveValuePropertyNames.PROPERTY_FORWARD_CURVE_CALCULATION_METHOD);
if (forwardCurveCalculationMethods == null || forwardCurveCalculationMethods.size() != 1) {
return null;
}
final String forwardCurveCalculationMethod = Iterables.getOnlyElement(forwardCurveCalculationMethods);
final String forwardCurveName = Iterables.getOnlyElement(forwardCurveNames);
final ValueRequirement volReq = getVolatilitySurfaceRequirement(desiredValue, security, volSurfaceName, forwardCurveName, surfaceCalculationMethod);
final ValueRequirement forwardCurveReq = getForwardCurveRequirement(security, forwardCurveName, forwardCurveCalculationMethod);
return Sets.newHashSet(discountingReq, forwardCurveReq, volReq);
}
/**
* Allows us to set which ValueSpecifications contain ValuePropertyNames.CURRENCY <p>
* PresentValue and ValueGamma will, while Delta and PositionDelta will not.
* @return true if Function's specification contains ValuePropertyNames.CURRENCY, else false.
*/
protected boolean getFunctionIncludesCurrencyProperty() {
return true;
}
@Override
public Set<ValueSpecification> getResults(final FunctionCompilationContext context, final ComputationTarget target, final Map<ValueSpecification, ValueRequirement> inputs) {
boolean discountCurvePropertiesSet = false;
boolean forwardCurvePropertiesSet = false;
boolean surfacePropertiesSet = false;
final FinancialSecurity security = (FinancialSecurity) target.getSecurity();
final ValueProperties.Builder properties = createValueProperties()
.with(ValuePropertyNames.CALCULATION_METHOD, getCalculationMethod())
.with(CalculationPropertyNamesAndValues.PROPERTY_MODEL_TYPE, getModelType());
if (getFunctionIncludesCurrencyProperty()) {
properties.with(ValuePropertyNames.CURRENCY, FinancialSecurityUtils.getCurrency(target.getSecurity()).getCode());
}
for (final Map.Entry<ValueSpecification, ValueRequirement> entry : inputs.entrySet()) {
final ValueSpecification value = entry.getKey();
final String inputName = value.getValueName();
if (inputName.equals(ValueRequirementNames.YIELD_CURVE) && !discountCurvePropertiesSet) {
final ValueProperties curveProperties = value.getProperties().copy()
.withoutAny(ValuePropertyNames.FUNCTION)
.withoutAny(ValuePropertyNames.CURVE)
.withoutAny(ValuePropertyNames.CURRENCY)
.withoutAny(ValuePropertyNames.CURVE_CALCULATION_CONFIG)
.withoutAny(ValuePropertyNames.CURVE_CALCULATION_METHOD)
.get();
final String discountingCurveName = value.getProperty(ValuePropertyNames.CURVE);
final String discountingCurveConfig = value.getProperty(ValuePropertyNames.CURVE_CALCULATION_CONFIG);
for (final String property : curveProperties.getProperties()) {
properties.with(property, curveProperties.getValues(property));
}
properties
.with(EquityOptionFunction.PROPERTY_DISCOUNTING_CURVE_NAME, discountingCurveName)
.with(EquityOptionFunction.PROPERTY_DISCOUNTING_CURVE_CONFIG, discountingCurveConfig);
discountCurvePropertiesSet = true;
} else if (inputName.equals(ValueRequirementNames.BLACK_VOLATILITY_SURFACE) && !surfacePropertiesSet) {
final ValueProperties surfaceProperties = value.getProperties().copy()
.withoutAny(ValuePropertyNames.FUNCTION)
.withoutAny(InstrumentTypeProperties.PROPERTY_SURFACE_INSTRUMENT_TYPE)
.withoutAny(ValuePropertyNames.SURFACE)
.get();
final String surfaceName = value.getProperty(ValuePropertyNames.SURFACE);
for (final String property : surfaceProperties.getProperties()) {
properties.with(property, surfaceProperties.getValues(property));
}
properties.with(ValuePropertyNames.SURFACE, getSurfaceName(security, surfaceName));
surfacePropertiesSet = true;
} else if (inputName.equals(ValueRequirementNames.FORWARD_CURVE) && !forwardCurvePropertiesSet) {
final ValueProperties forwardCurveProperties = value.getProperties().copy()
.withoutAny(ValuePropertyNames.FUNCTION)
.withoutAny(ValuePropertyNames.CURVE)
.withoutAny(ValuePropertyNames.CURVE_CURRENCY)
.get();
final String forwardCurveName = value.getProperty(ValuePropertyNames.CURVE);
for (final String property : forwardCurveProperties.getProperties()) {
properties.with(property, forwardCurveProperties.getValues(property));
}
properties.with(ForwardCurveValuePropertyNames.PROPERTY_FORWARD_CURVE_NAME, getSurfaceName(security, forwardCurveName));
forwardCurvePropertiesSet = true;
}
}
assert discountCurvePropertiesSet;
assert forwardCurvePropertiesSet;
assert surfacePropertiesSet;
final Set<ValueSpecification> results = new HashSet<>();
for (final String valueRequirement : _valueRequirementNames) {
results.add(new ValueSpecification(valueRequirement, target.toSpecification(), properties.get()));
}
return results;
}
/**
* Constructs the discounting curve requirement
* @param discountingCurveName The discounting curve name
* @param curveCalculationConfigName The curve calculation configuration name
* @param security The security
* @return The discounting curve requirement
*/
protected ValueRequirement getDiscountCurveRequirement(final String discountingCurveName, final String curveCalculationConfigName, final Security security) {
final ValueProperties properties = ValueProperties.builder()
.with(ValuePropertyNames.CURVE, discountingCurveName)
.with(ValuePropertyNames.CURVE_CALCULATION_CONFIG, curveCalculationConfigName)
.get();
return new ValueRequirement(ValueRequirementNames.YIELD_CURVE, ComputationTargetType.CURRENCY.specification(FinancialSecurityUtils.getCurrency(security)), properties);
}
/**
* Constructs the volatility surface requirement
* @param desiredValue The desired value
* @param security The security
* @param surfaceName The surface name
* @param forwardCurveName The forward curve name
* @param surfaceCalculationMethod The surface calculation method
* @return The volatility surface requirement
*/
protected abstract ValueRequirement getVolatilitySurfaceRequirement(final ValueRequirement desiredValue, final FinancialSecurity security, final String surfaceName,
final String forwardCurveName, final String surfaceCalculationMethod);
protected abstract ValueRequirement getForwardCurveRequirement(FinancialSecurity security, String forwardCurveName, String forwardCurveCalculationMethod);
protected abstract String getCalculationMethod();
protected abstract String getModelType();
protected abstract String getSurfaceName(FinancialSecurity security, String surfaceName);
/**
* Constructs the underlying future price requirement
* @param underlyingId The id of the underlying future
* @return The underlying future price requirement
*/
protected ValueRequirement getUnderlyingFutureRequirement(final ExternalId underlyingId) {
return new ValueRequirement(MarketDataRequirementNames.MARKET_VALUE, ComputationTargetType.PRIMITIVE, underlyingId);
}
/**
* Gets the value requirement names
* @return The value requirement names
*/
protected String[] getValueRequirementNames() {
return _valueRequirementNames;
}
/**
* Gets the security converter
* @return The security converter
*/
protected FinancialSecurityVisitor<InstrumentDefinition<?>> getSecurityConverter() {
return _converter;
}
/**
* Copies the constraints, removing the function property and replacing it with the appropriate one for the function
* @param constraints The constraints
* @return The properties
*/
protected ValueProperties createResultProperties(final ValueProperties constraints) {
return constraints.copy()
.withoutAny(ValuePropertyNames.FUNCTION)
.with(ValuePropertyNames.FUNCTION, getUniqueId()).get();
}
}