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Lepton.h

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//
// $Id: Lepton.h,v 1.14.2.2 2009/02/08 19:36:30 pioppi Exp $
//

#ifndef DataFormats_PatCandidates_Lepton_h
#define DataFormats_PatCandidates_Lepton_h

#include "DataFormats/Candidate/interface/Particle.h"
#include "DataFormats/PatCandidates/interface/PATObject.h"
#include "DataFormats/PatCandidates/interface/Isolation.h"


namespace pat {


  template <class LeptonType>
  class Lepton : public PATObject<LeptonType> {

    public:

      Lepton();
      Lepton(const LeptonType & aLepton);
      Lepton(const edm::RefToBase<LeptonType> & aLeptonRef);
      Lepton(const edm::Ptr<LeptonType> & aLeptonRef);
      virtual ~Lepton();

      virtual Lepton<LeptonType> * clone() const { return new Lepton<LeptonType>(*this); }

      const reco::GenParticle * genLepton() const { return PATObject<LeptonType>::genParticle(); }

      void setGenLepton(const reco::GenParticleRef & gl, bool embed=false) { PATObject<LeptonType>::setGenParticleRef(gl, embed); }

      //============ BEGIN ISOLATION BLOCK =====
      float isolation(IsolationKeys key) const { 
          if (key >= 0) {
              //if (key >= isolations_.size()) throw cms::Excepton("Missing Data") << "Isolation corresponding to key " << key << " was not stored for this particle.";
              if (size_t(key) >= isolations_.size()) return -1.0;
              return isolations_[key];
          } else switch (key) {
              case CaloIso:  
                  //if (isolations_.size() <= HCalIso) throw cms::Excepton("Missing Data") << "CalIsoo Isolation was not stored for this particle.";
                  if (isolations_.size() <= HCalIso) return -1.0; 
                  return isolations_[ECalIso] + isolations_[HCalIso];
              default:
                  return -1.0;
                  //throw cms::Excepton("Missing Data") << "Isolation corresponding to key " << key << " was not stored for this particle.";
          }
      }

      void setIsolation(IsolationKeys key, float value) {
          if (key >= 0) {
              if (size_t(key) >= isolations_.size()) isolations_.resize(key+1, -1.0);
              isolations_[key] = value;
          } else {
              throw cms::Exception("Illegal Argument") << 
                  "The key for which you're setting isolation does not correspond " <<
                  "to an individual isolation but to the sum of more independent isolations " <<
                  "(e.g. Calo = ECal + HCal), so you can't SET the value, just GET it.\n" <<
                  "Please set up each component independly.\n";
          }
      }

      // ---- specific getters ----
      float trackIso() const { return isolation(TrackerIso); }
      float caloIso()  const { return isolation(CaloIso); }
      float ecalIso()  const { return isolation(ECalIso); }
      float hcalIso()  const { return isolation(HCalIso); }

      float particleIso()  const { return isolation(ParticleIso); }
      float chargedParticleIso()  const { return isolation(ChargedParticleIso); }
      float neutralParticleIso()  const { return isolation(NeutralParticleIso); }       
      float gammaParticleIso()  const { return isolation(GammaParticleIso); }   

      float userIso(uint8_t index=0)  const { return isolation(IsolationKeys(UserBaseIso + index)); }

      // ---- specific setters ----
      void setTrackIso(float trackIso) { setIsolation(TrackerIso, trackIso); }
      void setECalIso(float caloIso)   { setIsolation(ECalIso, caloIso);  } 
      void setHCalIso(float caloIso)   { setIsolation(HCalIso, caloIso);  }
      void setUserIso(float value, uint8_t index=0)  { setIsolation(IsolationKeys(UserBaseIso + index), value); }


      //============ BEGIN ISODEPOSIT BLOCK =====
      const IsoDeposit * isoDeposit(IsolationKeys key) const {
          for (IsoDepositPairs::const_iterator it = isoDeposits_.begin(), ed = isoDeposits_.end(); 
                  it != ed; ++it) 
          {
              if (it->first == key) return & it->second;
          }
          return 0;
      } 

      void setIsoDeposit(IsolationKeys key, const IsoDeposit &dep) {
          IsoDepositPairs::iterator it = isoDeposits_.begin(), ed = isoDeposits_.end();
          for (; it != ed; ++it) {
              if (it->first == key) { it->second = dep; return; }
          }
          isoDeposits_.push_back(std::make_pair(key,dep));
      } 

      // ---- specific getters ----
      const IsoDeposit * trackerIsoDeposit() const { return isoDeposit(TrackerIso); }
      const IsoDeposit * ecalIsoDeposit()    const { return isoDeposit(ECalIso); }
      const IsoDeposit * hcalIsoDeposit()    const { return isoDeposit(HCalIso); }
      const IsoDeposit * userIsoDeposit(uint8_t index=0) const { return isoDeposit(IsolationKeys(UserBaseIso + index)); }

      // ---- specific setters ----
      void trackerIsoDeposit(const IsoDeposit &dep) { setIsoDeposit(TrackerIso, dep); }
      void ecalIsoDeposit(const IsoDeposit &dep)    { setIsoDeposit(ECalIso, dep); }
      void hcalIsoDeposit(const IsoDeposit &dep)    { setIsoDeposit(HCalIso, dep); }
      void userIsoDeposit(const IsoDeposit &dep, uint8_t index=0) { setIsoDeposit(IsolationKeys(UserBaseIso + index), dep); }


    protected:
      // --- Isolation and IsoDeposit related datamebers ---
      typedef std::vector<std::pair<IsolationKeys, pat::IsoDeposit> > IsoDepositPairs;
      IsoDepositPairs    isoDeposits_;
      std::vector<float> isolations_;
  };


  template <class LeptonType>
  Lepton<LeptonType>::Lepton() :
    PATObject<LeptonType>(LeptonType()) {
    // no common constructor, so initialize the candidate manually
    this->setCharge(0);
    this->setP4(reco::Particle::LorentzVector(0, 0, 0, 0));
    this->setVertex(reco::Particle::Point(0, 0, 0));
  }


  template <class LeptonType>
  Lepton<LeptonType>::Lepton(const LeptonType & aLepton) :
    PATObject<LeptonType>(aLepton) {
  }


  template <class LeptonType>
  Lepton<LeptonType>::Lepton(const edm::RefToBase<LeptonType> & aLeptonRef) :
    PATObject<LeptonType>(aLeptonRef) {
  }


  template <class LeptonType>
  Lepton<LeptonType>::Lepton(const edm::Ptr<LeptonType> & aLeptonRef) :
    PATObject<LeptonType>(aLeptonRef) {
  }


  template <class LeptonType>
  Lepton<LeptonType>::~Lepton() {
  }
}

#endif

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