/**
* Copyright (C) 2013 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.analytics.financial.provider.sensitivity.parameter;
import java.util.List;
import java.util.Map;
import java.util.Set;
import com.opengamma.analytics.financial.interestrate.InstrumentDerivativeVisitor;
import com.opengamma.analytics.financial.provider.description.inflation.ParameterInflationProviderInterface;
import com.opengamma.analytics.financial.provider.sensitivity.inflation.MultipleCurrencyInflationSensitivity;
import com.opengamma.analytics.financial.provider.sensitivity.multicurve.ForwardSensitivity;
import com.opengamma.analytics.financial.provider.sensitivity.multicurve.MultipleCurrencyParameterSensitivity;
import com.opengamma.analytics.math.matrix.DoubleMatrix1D;
import com.opengamma.util.money.Currency;
import com.opengamma.util.tuple.DoublesPair;
import com.opengamma.util.tuple.ObjectsPair;
/**
* For an instrument, computes the sensitivity of a value (often the present value or a par spread) to the parameters used in the curve.
* The meaning of "parameters" will depend of the way the curve is stored (interpolated yield, function parameters, etc.).
* The return format is ParameterSensitivity object.
* @param <DATA_TYPE> Data type.
*/
public class ParameterInflationSensitivityParameterCalculator<DATA_TYPE extends ParameterInflationProviderInterface> extends ParameterInflationSensitivityParameterAbstractCalculator<DATA_TYPE> {
/**
* Constructor
* @param curveSensitivityCalculator The curve sensitivity calculator.
*/
public ParameterInflationSensitivityParameterCalculator(final InstrumentDerivativeVisitor<DATA_TYPE, MultipleCurrencyInflationSensitivity> curveSensitivityCalculator) {
super(curveSensitivityCalculator);
}
@Override
public MultipleCurrencyParameterSensitivity pointToParameterSensitivity(final MultipleCurrencyInflationSensitivity sensitivity, final DATA_TYPE parameterMulticurves, final Set<String> curvesSet) {
MultipleCurrencyParameterSensitivity result = new MultipleCurrencyParameterSensitivity();
// YieldAndDiscount
for (final Currency ccySensi : sensitivity.getCurrencies()) {
final Map<String, List<DoublesPair>> sensitivityDsc = sensitivity.getSensitivity(ccySensi).getYieldDiscountingSensitivities();
for (final Map.Entry<String, List<DoublesPair>> entry : sensitivityDsc.entrySet()) {
if (curvesSet.contains(entry.getKey())) {
result = result
.plus(new ObjectsPair<>(entry.getKey(), ccySensi), new DoubleMatrix1D(parameterMulticurves.getMulticurveProvider().parameterSensitivity(entry.getKey(), entry.getValue())));
}
}
}
// Forward
for (final Currency ccySensi : sensitivity.getCurrencies()) {
final Map<String, List<ForwardSensitivity>> sensitivityFwd = sensitivity.getSensitivity(ccySensi).getForwardSensitivities();
for (final Map.Entry<String, List<ForwardSensitivity>> entry : sensitivityFwd.entrySet()) {
if (curvesSet.contains(entry.getKey())) {
result = result.plus(new ObjectsPair<>(entry.getKey(), ccySensi),
new DoubleMatrix1D(parameterMulticurves.getMulticurveProvider().parameterForwardSensitivity(entry.getKey(), entry.getValue())));
}
}
}
// IndexPrice
for (final Currency ccySensi : sensitivity.getCurrencies()) {
final Map<String, List<DoublesPair>> sensitivityPriceIndex = sensitivity.getSensitivity(ccySensi).getPriceCurveSensitivities();
for (final Map.Entry<String, List<DoublesPair>> entry : sensitivityPriceIndex.entrySet()) {
if (curvesSet.contains(entry.getKey())) {
result = result.plus(new ObjectsPair<>(entry.getKey(), ccySensi),
new DoubleMatrix1D(parameterMulticurves.getInflationProvider().parameterInflationSensitivity(entry.getKey(), entry.getValue())));
}
}
}
return result;
}
}