HashMapper.h

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#ifndef HashMapper_h
#define HashMapper_h

#include "DQM/HcalCommon/interface/Mapper.h"
#include "DQM/HcalCommon/interface/HashFunctions.h"

namespace hcaldqm
{
    using namespace hashfunctions;
    namespace mapper
    {
        class HashMapper : public Mapper
        {
            public:
                //  constructors/destructors
                HashMapper() {}
                HashMapper(HashType htype) : Mapper(), _htype(htype) 
                {}
                ~HashMapper() override {}

                //  initialize
                virtual void initialize(HashType htype) {_htype = htype;}

                //  get hash
                using Mapper::getHash;
                uint32_t getHash(HcalDetId const& did) const override
                {return hash_did[_htype](did);}
                uint32_t getHash(HcalElectronicsId const& eid) const override
                {return hash_eid[_htype-nHashType_did-1](eid);}
                uint32_t getHash(HcalTrigTowerDetId const& tid) const override
                {return hash_tid[_htype-nHashType_eid-1](tid);}

                //  get name of the hashed element
                using Mapper::getName;
                std::string getName(HcalDetId const &did) const override
                {return hashfunctions::name_did[_htype](did);}
                std::string getName(HcalElectronicsId const& eid) const override
                {return hashfunctions::name_eid[_htype-nHashType_did-1](eid);}
                std::string getName(HcalTrigTowerDetId const& tid) const override
                {return hashfunctions::name_tid[_htype-nHashType_eid-1](tid);}

                //  get the Hash Type Name
                virtual std::string getHashTypeName() const
                {return hash_names[this->getLinearHashType(_htype)];}
                virtual HashType getHashType() const
                {return _htype;}

                //  determine the type of the hash
                virtual bool isDHash()  const
                {return _htype<nHashType_did ? true : false;}
                virtual bool isEHash() const
                {
                    return (_htype>nHashType_did && _htype<nHashType_eid) ? 
                        true : false;
                }
                virtual bool isTHash() const
                {
                    return (_htype>nHashType_eid && _htype<nHashType_tid) ? 
                        true : false;
                }

                //  get the Linear Hash Type
                virtual int getLinearHashType(HashType htype) const
                {
                    int l = 0;
                    if (htype<nHashType_did)
                        l = htype;
                    else if (htype<nHashType_eid)
                        l = htype - 1;
                    else
                        l = htype - 2;
                    return l;
                }

            protected:
                HashType _htype;
        };
    }
}

#endif