/**
* Copyright (C) 2012 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.financial.analytics.model.swaption.basicblack;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.threeten.bp.Clock;
import org.threeten.bp.ZonedDateTime;
import com.google.common.collect.Iterables;
import com.opengamma.OpenGammaRuntimeException;
import com.opengamma.analytics.financial.instrument.InstrumentDefinition;
import com.opengamma.analytics.financial.interestrate.InstrumentDerivative;
import com.opengamma.analytics.financial.interestrate.YieldCurveBundle;
import com.opengamma.analytics.financial.model.option.definition.YieldCurveWithBlackSwaptionBundle;
import com.opengamma.analytics.financial.model.option.parameters.BlackFlatSwaptionParameters;
import com.opengamma.analytics.financial.model.volatility.surface.VolatilitySurface;
import com.opengamma.analytics.math.surface.ConstantDoublesSurface;
import com.opengamma.core.config.ConfigSource;
import com.opengamma.core.holiday.HolidaySource;
import com.opengamma.core.region.RegionSource;
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.ValueSpecification;
import com.opengamma.financial.OpenGammaCompilationContext;
import com.opengamma.financial.OpenGammaExecutionContext;
import com.opengamma.financial.analytics.conversion.SwapSecurityConverterDeprecated;
import com.opengamma.financial.analytics.conversion.SwaptionSecurityConverterDeprecated;
import com.opengamma.financial.analytics.ircurve.calcconfig.ConfigDBCurveCalculationConfigSource;
import com.opengamma.financial.analytics.ircurve.calcconfig.MultiCurveCalculationConfig;
import com.opengamma.financial.analytics.model.CalculationPropertyNamesAndValues;
import com.opengamma.financial.analytics.model.YieldCurveFunctionUtils;
import com.opengamma.financial.analytics.model.black.ConstantBlackDiscountingSwaptionFunction;
import com.opengamma.financial.analytics.model.swaption.SwaptionUtils;
import com.opengamma.financial.convention.ConventionBundleSource;
import com.opengamma.financial.security.FinancialSecurityTypes;
import com.opengamma.financial.security.FinancialSecurityUtils;
import com.opengamma.financial.security.option.SwaptionSecurity;
import com.opengamma.util.ArgumentChecker;
import com.opengamma.util.money.Currency;
/**
* Base class for functions that return values for swaptions using the basic Black model (i.e. using a security-specific volatility and not interpolating volatilities).
*
* @deprecated Use classes descended from {@link ConstantBlackDiscountingSwaptionFunction}
*/
@Deprecated
public abstract class SwaptionBasicBlackFunction extends AbstractFunction.NonCompiledInvoker {
/** The logger */
private static final Logger s_logger = LoggerFactory.getLogger(SwaptionBasicBlackFunction.class);
/** The value requirement that can be produced */
private final String _valueRequirementName;
/** Converter from {@link SwaptionSecurity} to an analytics object */
private SwaptionSecurityConverterDeprecated _visitor;
/**
* @param valueRequirementName The value requirement name, not null
*/
public SwaptionBasicBlackFunction(final String valueRequirementName) {
ArgumentChecker.notNull(valueRequirementName, "value requirement name");
_valueRequirementName = valueRequirementName;
}
@Override
public void init(final FunctionCompilationContext context) {
final SecuritySource securitySource = OpenGammaCompilationContext.getSecuritySource(context);
final HolidaySource holidaySource = OpenGammaCompilationContext.getHolidaySource(context);
final ConventionBundleSource conventionSource = OpenGammaCompilationContext.getConventionBundleSource(context);
final RegionSource regionSource = OpenGammaCompilationContext.getRegionSource(context);
final SwapSecurityConverterDeprecated swapConverter = new SwapSecurityConverterDeprecated(holidaySource, conventionSource, regionSource, false);
_visitor = new SwaptionSecurityConverterDeprecated(securitySource, swapConverter);
ConfigDBCurveCalculationConfigSource.reinitOnChanges(context, this);
}
@Override
public Set<ComputedValue> execute(final FunctionExecutionContext executionContext, final FunctionInputs inputs, final ComputationTarget target, final Set<ValueRequirement> desiredValues) {
final Clock snapshotClock = executionContext.getValuationClock();
final ZonedDateTime now = ZonedDateTime.now(snapshotClock);
final SecuritySource securitySource = OpenGammaExecutionContext.getSecuritySource(executionContext);
final SwaptionSecurity security = (SwaptionSecurity) target.getSecurity();
final ValueRequirement desiredValue = Iterables.getOnlyElement(desiredValues);
final Currency currency = FinancialSecurityUtils.getCurrency(security);
final String curveCalculationConfigName = desiredValue.getConstraint(ValuePropertyNames.CURVE_CALCULATION_CONFIG);
final ConfigSource configSource = OpenGammaExecutionContext.getConfigSource(executionContext);
final ConfigDBCurveCalculationConfigSource curveCalculationConfigSource = new ConfigDBCurveCalculationConfigSource(configSource);
final MultiCurveCalculationConfig curveCalculationConfig = curveCalculationConfigSource.getConfig(curveCalculationConfigName);
if (curveCalculationConfig == null) {
throw new OpenGammaRuntimeException("Could not find curve calculation configuration named " + curveCalculationConfigName);
}
String[] curveNames = curveCalculationConfig.getYieldCurveNames(); //TODO
if (curveNames.length == 1) {
curveNames = new String[] {curveNames[0], curveNames[0] };
}
final String[] fullCurveNames = new String[curveNames.length];
for (int i = 0; i < curveNames.length; i++) {
fullCurveNames[i] = curveNames[i] + "_" + currency.getCode();
}
final YieldCurveBundle curves = YieldCurveFunctionUtils.getYieldCurves(inputs, curveCalculationConfig);
final Object volatilityObject = inputs.getValue(MarketDataRequirementNames.IMPLIED_VOLATILITY);
if (volatilityObject == null) {
throw new OpenGammaRuntimeException("Could not get volatility");
}
final double volatility = (Double) volatilityObject;
final VolatilitySurface volatilitySurface = new VolatilitySurface(ConstantDoublesSurface.from(volatility));
final InstrumentDefinition<?> definition = security.accept(_visitor);
final InstrumentDerivative swaption = definition.toDerivative(now, fullCurveNames);
final ValueProperties properties = getResultProperties(currency.getCode(), curveCalculationConfigName);
final ValueSpecification spec = new ValueSpecification(_valueRequirementName, target.toSpecification(), properties);
final BlackFlatSwaptionParameters parameters = new BlackFlatSwaptionParameters(volatilitySurface.getSurface(),
SwaptionUtils.getSwapGenerator(security, definition, securitySource));
final YieldCurveWithBlackSwaptionBundle data = new YieldCurveWithBlackSwaptionBundle(parameters, curves);
return getResult(swaption, data, spec);
}
@Override
public ComputationTargetType getTargetType() {
return FinancialSecurityTypes.SWAPTION_SECURITY;
}
@Override
public Set<ValueSpecification> getResults(final FunctionCompilationContext context, final ComputationTarget target) {
final String currency = FinancialSecurityUtils.getCurrency(target.getSecurity()).getCode();
return Collections.singleton(new ValueSpecification(_valueRequirementName, target.toSpecification(), getResultProperties(currency)));
}
@Override
public Set<ValueRequirement> getRequirements(final FunctionCompilationContext context, final ComputationTarget target, final ValueRequirement desiredValue) {
final ValueProperties constraints = desiredValue.getConstraints();
final Set<String> curveCalculationConfigNames = constraints.getValues(ValuePropertyNames.CURVE_CALCULATION_CONFIG);
if (curveCalculationConfigNames == null || curveCalculationConfigNames.size() != 1) {
return null;
}
final String curveCalculationConfigName = Iterables.getOnlyElement(curveCalculationConfigNames);
final ConfigSource configSource = OpenGammaCompilationContext.getConfigSource(context);
final ConfigDBCurveCalculationConfigSource curveCalculationConfigSource = new ConfigDBCurveCalculationConfigSource(configSource);
final MultiCurveCalculationConfig curveCalculationConfig = curveCalculationConfigSource.getConfig(curveCalculationConfigName);
if (curveCalculationConfig == null) {
s_logger.error("Could not find curve calculation configuration named " + curveCalculationConfigName);
return null;
}
final Currency currency = FinancialSecurityUtils.getCurrency(target.getSecurity());
if (!ComputationTargetSpecification.of(currency).equals(curveCalculationConfig.getTarget())) {
s_logger.error("Security currency and curve calculation config id were not equal; have {} and {}", currency, curveCalculationConfig.getTarget());
return null;
}
final Set<ValueRequirement> requirements = new HashSet<>();
requirements.addAll(YieldCurveFunctionUtils.getCurveRequirements(curveCalculationConfig, curveCalculationConfigSource));
requirements.add(getVolatilityRequirement(ComputationTargetSpecification.of(target.getSecurity())));
return requirements;
}
/**
* Calculates the results.
*
* @param swaption The swaption
* @param data The market data bundle
* @param spec The result specification
* @return A set of results
*/
protected abstract Set<ComputedValue> getResult(final InstrumentDerivative swaption, final YieldCurveWithBlackSwaptionBundle data, final ValueSpecification spec);
private ValueProperties getResultProperties(final String currency) {
return createValueProperties()
.with(ValuePropertyNames.CALCULATION_METHOD, CalculationPropertyNamesAndValues.BLACK_BASIC_METHOD)
.withAny(ValuePropertyNames.CURVE_CALCULATION_CONFIG)
.with(ValuePropertyNames.CURRENCY, currency).get();
}
private ValueProperties getResultProperties(final String currency, final String curveCalculationConfigName) {
final ValueProperties properties = createValueProperties()
.with(ValuePropertyNames.CALCULATION_METHOD, CalculationPropertyNamesAndValues.BLACK_BASIC_METHOD)
.with(ValuePropertyNames.CURVE_CALCULATION_CONFIG, curveCalculationConfigName)
.with(ValuePropertyNames.CURRENCY, currency).get();
return properties;
}
private static ValueRequirement getVolatilityRequirement(final ComputationTargetSpecification target) {
return new ValueRequirement(MarketDataRequirementNames.IMPLIED_VOLATILITY, target, ValueProperties.builder().get());
}
}