oisratehelper.hpp

/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
 
/*
 Copyright (C) 2009, 2012 Roland Lichters
 Copyright (C) 2009, 2012 Ferdinando Ametrano
 
 This file is part of QuantLib, a free-software/open-source library
 for financial quantitative analysts and developers - http://quantlib.org/
 
 QuantLib is free software: you can redistribute it and/or modify it
 under the terms of the QuantLib license.  You should have received a
 copy of the license along with this program; if not, please email
 <quantlib-dev@lists.sf.net>. The license is also available online at
 <http://quantlib.org/license.shtml>.
 
 This program is distributed in the hope that it will be useful, but WITHOUT
 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 FOR A PARTICULAR PURPOSE.  See the license for more details.
*/
 
#ifndef quantlib_oisratehelper_hpp
#define quantlib_oisratehelper_hpp
 
#include <ql/termstructures/yield/ratehelpers.hpp>
#include <ql/instruments/overnightindexedswap.hpp>
#include <ql/optional.hpp>
 
namespace QuantLib {
 
    class OISRateHelper : public RelativeDateRateHelper {
      public:
        OISRateHelper(Natural settlementDays,
                      const Period& tenor, // swap maturity
                      const Handle<Quote>& fixedRate,
                      const ext::shared_ptr<OvernightIndex>& overnightIndex,
                      // exogenous discounting curve
                      Handle<YieldTermStructure> discountingCurve = {},
                      bool telescopicValueDates = false,
                      Natural paymentLag = 0,
                      BusinessDayConvention paymentConvention = Following,
                      Frequency paymentFrequency = Annual,
                      Calendar paymentCalendar = Calendar(),
                      const Period& forwardStart = 0 * Days,
                      Spread overnightSpread = 0.0,
                      Pillar::Choice pillar = Pillar::LastRelevantDate,
                      Date customPillarDate = Date(),
                      RateAveraging::Type averagingMethod = RateAveraging::Compound,
                      ext::optional<bool> endOfMonth = ext::nullopt);
 
        Real impliedQuote() const override;
        void setTermStructure(YieldTermStructure*) override;
 
        // NOLINTNEXTLINE(cppcoreguidelines-noexcept-swap,performance-noexcept-swap)
        ext::shared_ptr<OvernightIndexedSwap> swap() const { return swap_; }
 
        void accept(AcyclicVisitor&) override;
    protected:
      void initializeDates() override;
      Pillar::Choice pillarChoice_;
 
      Natural settlementDays_;
      Period tenor_;
      ext::shared_ptr<OvernightIndex> overnightIndex_;
 
      ext::shared_ptr<OvernightIndexedSwap> swap_;
      RelinkableHandle<YieldTermStructure> termStructureHandle_;
 
      Handle<YieldTermStructure> discountHandle_;
      bool telescopicValueDates_;
      RelinkableHandle<YieldTermStructure> discountRelinkableHandle_;
 
      Natural paymentLag_;
      BusinessDayConvention paymentConvention_;
      Frequency paymentFrequency_;
      Calendar paymentCalendar_;
      Period forwardStart_;
      Spread overnightSpread_;
      RateAveraging::Type averagingMethod_;
      ext::optional<bool> endOfMonth_;
    };
 
    class DatedOISRateHelper : public RateHelper {
      public:
        DatedOISRateHelper(const Date& startDate,
                           const Date& endDate,
                           const Handle<Quote>& fixedRate,
                           const ext::shared_ptr<OvernightIndex>& overnightIndex,
                           // exogenous discounting curve
                           Handle<YieldTermStructure> discountingCurve = {},
                           bool telescopicValueDates = false,
                           RateAveraging::Type averagingMethod = RateAveraging::Compound,
                           Natural paymentLag = 0,
                           BusinessDayConvention paymentConvention = Following,
                           Frequency paymentFrequency = Annual,
                           const Calendar& paymentCalendar = Calendar(),
                           const Period& forwardStart = 0 * Days,
                           Spread overnightSpread = 0.0,
                           ext::optional<bool> endOfMonth = ext::nullopt);
 
        Real impliedQuote() const override;
        void setTermStructure(YieldTermStructure*) override;
 
        void accept(AcyclicVisitor&) override;
      protected:
        ext::shared_ptr<OvernightIndexedSwap> swap_;
        RelinkableHandle<YieldTermStructure> termStructureHandle_;
 
        Handle<YieldTermStructure> discountHandle_;
        bool telescopicValueDates_;
        RelinkableHandle<YieldTermStructure> discountRelinkableHandle_;
        RateAveraging::Type averagingMethod_;
    };
 
}
 
#endif