capflooredcoupon.hpp

/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
 
/*
 Copyright (C) 2006, 2007 StatPro Italia srl
 Copyright (C) 2006 Cristina Duminuco
 
 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_capped_floored_coupon_hpp
#define quantlib_capped_floored_coupon_hpp
 
#include <ql/cashflows/iborcoupon.hpp>
#include <ql/cashflows/cmscoupon.hpp>
#include <ql/utilities/null.hpp>
 
namespace QuantLib {
    class Date;
 
    class CappedFlooredCoupon : public FloatingRateCoupon {
      public:
        CappedFlooredCoupon(
                  const ext::shared_ptr<FloatingRateCoupon>& underlying,
                  Rate cap = Null<Rate>(),
                  Rate floor = Null<Rate>());
 
        void deepUpdate() override;
 
        void performCalculations() const override;
 
        Rate rate() const override;
        Rate convexityAdjustment() const override;
 
        Rate cap() const;
        Rate floor() const;
        Rate effectiveCap() const;
        Rate effectiveFloor() const;
 
        void accept(AcyclicVisitor&) override;
 
        bool isCapped() const {return isCapped_;}
        bool isFloored() const {return isFloored_;}
 
        void setPricer(const ext::shared_ptr<FloatingRateCouponPricer>& pricer) override;
 
        ext::shared_ptr<FloatingRateCoupon> underlying() { return underlying_; }
 
      protected:
        // data
        ext::shared_ptr<FloatingRateCoupon> underlying_;
        bool isCapped_ = false, isFloored_ = false;
        Rate cap_, floor_;
    };
 
    class CappedFlooredIborCoupon : public CappedFlooredCoupon {
      public:
        CappedFlooredIborCoupon(
                  const Date& paymentDate,
                  Real nominal,
                  const Date& startDate,
                  const Date& endDate,
                  Natural fixingDays,
                  const ext::shared_ptr<IborIndex>& index,
                  Real gearing = 1.0,
                  Spread spread = 0.0,
                  Rate cap = Null<Rate>(),
                  Rate floor = Null<Rate>(),
                  const Date& refPeriodStart = Date(),
                  const Date& refPeriodEnd = Date(),
                  const DayCounter& dayCounter = DayCounter(),
                  bool isInArrears = false,
                  const Date& exCouponDate = Date())
        : CappedFlooredCoupon(ext::shared_ptr<FloatingRateCoupon>(new
            IborCoupon(paymentDate, nominal, startDate, endDate, fixingDays,
                       index, gearing, spread, refPeriodStart, refPeriodEnd,
                       dayCounter, isInArrears, exCouponDate)), cap, floor) {}
 
        void accept(AcyclicVisitor& v) override {
            auto* v1 = dynamic_cast<Visitor<CappedFlooredIborCoupon>*>(&v);
            if (v1 != nullptr)
                v1->visit(*this);
            else
                CappedFlooredCoupon::accept(v);
        }
    };
 
    class CappedFlooredCmsCoupon : public CappedFlooredCoupon {
      public:
        CappedFlooredCmsCoupon(
                  const Date& paymentDate,
                  Real nominal,
                  const Date& startDate,
                  const Date& endDate,
                  Natural fixingDays,
                  const ext::shared_ptr<SwapIndex>& index,
                  Real gearing = 1.0,
                  Spread spread= 0.0,
                  const Rate cap = Null<Rate>(),
                  const Rate floor = Null<Rate>(),
                  const Date& refPeriodStart = Date(),
                  const Date& refPeriodEnd = Date(),
                  const DayCounter& dayCounter = DayCounter(),
                  bool isInArrears = false,
                  const Date& exCouponDate = Date())
        : CappedFlooredCoupon(ext::shared_ptr<FloatingRateCoupon>(new
            CmsCoupon(paymentDate, nominal, startDate, endDate, fixingDays,
                      index, gearing, spread, refPeriodStart, refPeriodEnd,
                      dayCounter, isInArrears, exCouponDate)), cap, floor) {}
 
        void accept(AcyclicVisitor& v) override {
            auto* v1 = dynamic_cast<Visitor<CappedFlooredCmsCoupon>*>(&v);
            if (v1 != nullptr)
                v1->visit(*this);
            else
                CappedFlooredCoupon::accept(v);
        }
    };
 
}
 
#endif