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#include "EgammaAnalysis/ElectronTools/plugins/RegressionEnergyPatElectronProducer.h"

#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/ParameterSet/interface/ConfigurationDescriptions.h"
#include "FWCore/ParameterSet/interface/ParameterSetDescription.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/Utilities/interface/EDMException.h"
#include "Geometry/Records/interface/CaloTopologyRecord.h"
#include "Geometry/Records/interface/CaloGeometryRecord.h"
#include "EgammaAnalysis/ElectronTools/interface/SuperClusterHelper.h"

#include <iostream>

RegressionEnergyPatElectronProducer::RegressionEnergyPatElectronProducer(const edm::ParameterSet& cfg) {
  inputGsfElectronsToken_ =
      mayConsume<reco::GsfElectronCollection>(cfg.getParameter<edm::InputTag>("inputElectronsTag"));
  inputPatElectronsToken_ = mayConsume<pat::ElectronCollection>(cfg.getParameter<edm::InputTag>("inputElectronsTag"));
  inputCollectionType_ = cfg.getParameter<uint32_t>("inputCollectionType");
  rhoInputToken_ = consumes<double>(cfg.getParameter<edm::InputTag>("rhoCollection"));
  verticesInputToken_ = consumes<reco::VertexCollection>(cfg.getParameter<edm::InputTag>("vertexCollection"));
  energyRegressionType_ = cfg.getParameter<uint32_t>("energyRegressionType");
  regressionInputFile_ = cfg.getParameter<std::string>("regressionInputFile");
  recHitCollectionEBToken_ = mayConsume<EcalRecHitCollection>(cfg.getParameter<edm::InputTag>("recHitCollectionEB"));
  recHitCollectionEEToken_ = mayConsume<EcalRecHitCollection>(cfg.getParameter<edm::InputTag>("recHitCollectionEE"));
  ecalTopoToken_ = esConsumes();
  caloGeomToken_ = esConsumes();
  nameEnergyReg_ = cfg.getParameter<std::string>("nameEnergyReg");
  nameEnergyErrorReg_ = cfg.getParameter<std::string>("nameEnergyErrorReg");
  debug_ = cfg.getUntrackedParameter<bool>("debug");
  useReducedRecHits_ = cfg.getParameter<bool>("useRecHitCollections");
  produceValueMaps_ = cfg.getParameter<bool>("produceValueMaps");

  // if Gsf Electrons; useReducedRecHits should be used)
  if (inputCollectionType_ == 0 && !useReducedRecHits_) {
    throw cms::Exception("InconsistentParameters")
        << " *** Inconsistent configuration : if you read GsfElectrons, you should set useRecHitCollections to true "
           "and provide the correcte values to recHitCollectionEB and recHitCollectionEE (most probably "
           "reducedEcalRecHitsEB and reducedEcalRecHitsEE )"
        << std::endl;
  }

  if (inputCollectionType_ == 0 && !produceValueMaps_) {
    edm::LogPrint("RegressionEnergyPatElectronProducer")
        << " You are running on GsfElectrons and the producer is not configured to produce ValueMaps with the results. "
           "In that case, it does not nothing !! ";
  }

  if (inputCollectionType_ == 0) {
    // do nothing
  } else if (inputCollectionType_ == 1) {
    produces<pat::ElectronCollection>();
  } else {
    throw cms::Exception("InconsistentParameters")
        << " inputCollectionType should be either 0 (GsfElectrons) or 1 (pat::Electrons) ";
  }

  //set regression type
  ElectronEnergyRegressionEvaluate::ElectronEnergyRegressionType type = ElectronEnergyRegressionEvaluate::kNoTrkVar;
  if (energyRegressionType_ == 1)
    type = ElectronEnergyRegressionEvaluate::kNoTrkVar;
  else if (energyRegressionType_ == 2)
    type = ElectronEnergyRegressionEvaluate::kWithSubCluVar;
  else if (energyRegressionType_ == 3)
    type = ElectronEnergyRegressionEvaluate::kWithTrkVar;

  //load weights and initialize
  regressionEvaluator_ = new ElectronEnergyRegressionEvaluate();
  regressionEvaluator_->initialize(regressionInputFile_, type);

  if (produceValueMaps_) {
    produces<edm::ValueMap<double> >(nameEnergyReg_);
    produces<edm::ValueMap<double> >(nameEnergyErrorReg_);
  }

  //****************************************************************************************
  //set up regression calculator
  //****************************************************************************************

  geomInitialized_ = false;

  edm::LogPrint("RegressionEnergyPatElectronProducer") << " Finished initialization ";
}

RegressionEnergyPatElectronProducer::~RegressionEnergyPatElectronProducer() { delete regressionEvaluator_; }

void RegressionEnergyPatElectronProducer::produce(edm::Event& event, const edm::EventSetup& setup) {
  assert(regressionEvaluator_->isInitialized());
  if (!geomInitialized_) {
    ecalTopology_ = &setup.getData(ecalTopoToken_);
    caloGeometry_ = &setup.getData(caloGeomToken_);
    geomInitialized_ = true;
  }

  //**************************************************************************
  //Get Number of Vertices
  //**************************************************************************
  edm::Handle<reco::VertexCollection> hVertexProduct;
  event.getByToken(verticesInputToken_, hVertexProduct);
  const reco::VertexCollection inVertices = *(hVertexProduct.product());

  // loop through all vertices
  Int_t nvertices = 0;
  for (reco::VertexCollection::const_iterator inV = inVertices.begin(); inV != inVertices.end(); ++inV) {
    //pass these vertex cuts
    if (inV->ndof() >= 4 && inV->position().Rho() <= 2.0 && fabs(inV->z()) <= 24.0) {
      nvertices++;
    }
  }

  //**************************************************************************
  //Get Rho
  //**************************************************************************
  double rho = 0;
  edm::Handle<double> hRhoKt6PFJets;
  event.getByToken(rhoInputToken_, hRhoKt6PFJets);
  rho = (*hRhoKt6PFJets);

  //*************************************************************************
  // Get the RecHits
  //************************************************************************

  edm::Handle<EcalRecHitCollection> pEBRecHits;
  edm::Handle<EcalRecHitCollection> pEERecHits;
  if (useReducedRecHits_) {
    event.getByToken(recHitCollectionEBToken_, pEBRecHits);
    event.getByToken(recHitCollectionEEToken_, pEERecHits);
  }

  edm::Handle<reco::GsfElectronCollection> gsfCollectionH;
  edm::Handle<pat::ElectronCollection> patCollectionH;
  if (inputCollectionType_ == 0) {
    event.getByToken(inputGsfElectronsToken_, gsfCollectionH);
    nElectrons_ = gsfCollectionH->size();
  }
  if (inputCollectionType_ == 1) {
    event.getByToken(inputPatElectronsToken_, patCollectionH);
    nElectrons_ = patCollectionH->size();
  }

  // prepare the two even if only one is used
  std::unique_ptr<pat::ElectronCollection> patElectrons(new pat::ElectronCollection);

  // Fillers for ValueMaps:
  std::unique_ptr<edm::ValueMap<double> > regrEnergyMap(new edm::ValueMap<double>());
  edm::ValueMap<double>::Filler energyFiller(*regrEnergyMap);

  std::unique_ptr<edm::ValueMap<double> > regrEnergyErrorMap(new edm::ValueMap<double>());
  edm::ValueMap<double>::Filler energyErrorFiller(*regrEnergyErrorMap);

  // Reserve the vectors with outputs
  std::vector<double> energyValues;
  std::vector<double> energyErrorValues;
  energyValues.reserve(nElectrons_);
  energyErrorValues.reserve(nElectrons_);

  for (unsigned iele = 0; iele < nElectrons_; ++iele) {
    const reco::GsfElectron* ele = (inputCollectionType_ == 0) ? &(*gsfCollectionH)[iele] : &(*patCollectionH)[iele];
    if (debug_) {
      edm::LogPrint("RegressionEnergyPatElectronProducer")
          << "***********************************************************************\n";
      edm::LogPrint("RegressionEnergyPatElectronProducer")
          << "Run Lumi Event: " << event.id().run() << " " << event.luminosityBlock() << " " << event.id().event()
          << "\n";
      edm::LogPrint("RegressionEnergyPatElectronProducer")
          << "Pat Electron : " << ele->pt() << " " << ele->eta() << " " << ele->phi() << "\n";
    }

    pat::Electron* myPatElectron = (inputCollectionType_ == 0) ? nullptr : new pat::Electron((*patCollectionH)[iele]);
    // Get RecHit Collection
    const EcalRecHitCollection* recHits = nullptr;
    if (useReducedRecHits_) {
      if (ele->isEB()) {
        recHits = pEBRecHits.product();
      } else
        recHits = pEERecHits.product();
    } else {
      recHits = (*patCollectionH)[iele].recHits();
    }

    SuperClusterHelper* mySCHelper = nullptr;
    if (inputCollectionType_ == 0) {
      mySCHelper = new SuperClusterHelper(&(*ele), recHits, ecalTopology_, caloGeometry_);
    } else if (inputCollectionType_ == 1) {
      mySCHelper = new SuperClusterHelper(&(*patCollectionH)[iele], recHits, ecalTopology_, caloGeometry_);
    }

    // apply regression energy
    Double_t FinalMomentum = 0;
    Double_t FinalMomentumError = 0;
    Double_t RegressionMomentum = 0;
    Double_t RegressionMomentumError = 0;

    if (energyRegressionType_ == 1) {
      RegressionMomentum = regressionEvaluator_->regressionValueNoTrkVar(mySCHelper->rawEnergy(),
                                                                         mySCHelper->eta(),
                                                                         mySCHelper->phi(),
                                                                         mySCHelper->r9(),
                                                                         mySCHelper->etaWidth(),
                                                                         mySCHelper->phiWidth(),
                                                                         mySCHelper->clustersSize(),
                                                                         mySCHelper->hadronicOverEm(),
                                                                         rho,
                                                                         nvertices,
                                                                         mySCHelper->seedEta(),
                                                                         mySCHelper->seedPhi(),
                                                                         mySCHelper->seedEnergy(),
                                                                         mySCHelper->e3x3(),
                                                                         mySCHelper->e5x5(),
                                                                         mySCHelper->sigmaIetaIeta(),
                                                                         mySCHelper->spp(),
                                                                         mySCHelper->sep(),
                                                                         mySCHelper->eMax(),
                                                                         mySCHelper->e2nd(),
                                                                         mySCHelper->eTop(),
                                                                         mySCHelper->eBottom(),
                                                                         mySCHelper->eLeft(),
                                                                         mySCHelper->eRight(),
                                                                         mySCHelper->e2x5Max(),
                                                                         mySCHelper->e2x5Top(),
                                                                         mySCHelper->e2x5Bottom(),
                                                                         mySCHelper->e2x5Left(),
                                                                         mySCHelper->e2x5Right(),
                                                                         mySCHelper->ietaSeed(),
                                                                         mySCHelper->iphiSeed(),
                                                                         mySCHelper->etaCrySeed(),
                                                                         mySCHelper->phiCrySeed(),
                                                                         mySCHelper->preshowerEnergyOverRaw(),
                                                                         debug_);
      RegressionMomentumError =
          regressionEvaluator_->regressionUncertaintyNoTrkVar(mySCHelper->rawEnergy(),
                                                              mySCHelper->eta(),
                                                              mySCHelper->phi(),
                                                              mySCHelper->r9(),
                                                              mySCHelper->etaWidth(),
                                                              mySCHelper->phiWidth(),
                                                              mySCHelper->clustersSize(),
                                                              mySCHelper->hadronicOverEm(),
                                                              rho,
                                                              nvertices,
                                                              mySCHelper->seedEta(),
                                                              mySCHelper->seedPhi(),
                                                              mySCHelper->seedEnergy(),
                                                              mySCHelper->e3x3(),
                                                              mySCHelper->e5x5(),
                                                              mySCHelper->sigmaIetaIeta(),
                                                              mySCHelper->spp(),
                                                              mySCHelper->sep(),
                                                              mySCHelper->eMax(),
                                                              mySCHelper->e2nd(),
                                                              mySCHelper->eTop(),
                                                              mySCHelper->eBottom(),
                                                              mySCHelper->eLeft(),
                                                              mySCHelper->eRight(),
                                                              mySCHelper->e2x5Max(),
                                                              mySCHelper->e2x5Top(),
                                                              mySCHelper->e2x5Bottom(),
                                                              mySCHelper->e2x5Left(),
                                                              mySCHelper->e2x5Right(),
                                                              mySCHelper->ietaSeed(),
                                                              mySCHelper->iphiSeed(),
                                                              mySCHelper->etaCrySeed(),
                                                              mySCHelper->phiCrySeed(),
                                                              mySCHelper->preshowerEnergyOverRaw(),
                                                              debug_);

      // PAT method
      if (inputCollectionType_ == 1) {
        myPatElectron->setEcalRegressionEnergy(RegressionMomentum, RegressionMomentumError);
      }
      energyValues.push_back(RegressionMomentum);
      energyErrorValues.push_back(RegressionMomentumError);

    } else if (energyRegressionType_ == 2) {  // ECAL regression with subcluster information
      RegressionMomentum = regressionEvaluator_->regressionValueWithSubClusters(mySCHelper->rawEnergy(),
                                                                                mySCHelper->eta(),
                                                                                mySCHelper->phi(),
                                                                                mySCHelper->r9(),
                                                                                mySCHelper->etaWidth(),
                                                                                mySCHelper->phiWidth(),
                                                                                mySCHelper->clustersSize(),
                                                                                mySCHelper->hadronicOverEm(),
                                                                                rho,
                                                                                nvertices,
                                                                                mySCHelper->seedEta(),
                                                                                mySCHelper->seedPhi(),
                                                                                mySCHelper->seedEnergy(),
                                                                                mySCHelper->e3x3(),
                                                                                mySCHelper->e5x5(),
                                                                                mySCHelper->sigmaIetaIeta(),
                                                                                mySCHelper->spp(),
                                                                                mySCHelper->sep(),
                                                                                mySCHelper->eMax(),
                                                                                mySCHelper->e2nd(),
                                                                                mySCHelper->eTop(),
                                                                                mySCHelper->eBottom(),
                                                                                mySCHelper->eLeft(),
                                                                                mySCHelper->eRight(),
                                                                                mySCHelper->e2x5Max(),
                                                                                mySCHelper->e2x5Top(),
                                                                                mySCHelper->e2x5Bottom(),
                                                                                mySCHelper->e2x5Left(),
                                                                                mySCHelper->e2x5Right(),
                                                                                mySCHelper->ietaSeed(),
                                                                                mySCHelper->iphiSeed(),
                                                                                mySCHelper->etaCrySeed(),
                                                                                mySCHelper->phiCrySeed(),
                                                                                mySCHelper->preshowerEnergyOverRaw(),
                                                                                ele->ecalDrivenSeed(),
                                                                                ele->isEBEtaGap(),
                                                                                ele->isEBPhiGap(),
                                                                                ele->isEEDeeGap(),
                                                                                mySCHelper->eSubClusters(),
                                                                                mySCHelper->subClusterEnergy(1),
                                                                                mySCHelper->subClusterEta(1),
                                                                                mySCHelper->subClusterPhi(1),
                                                                                mySCHelper->subClusterEmax(1),
                                                                                mySCHelper->subClusterE3x3(1),
                                                                                mySCHelper->subClusterEnergy(2),
                                                                                mySCHelper->subClusterEta(2),
                                                                                mySCHelper->subClusterPhi(2),
                                                                                mySCHelper->subClusterEmax(2),
                                                                                mySCHelper->subClusterE3x3(2),
                                                                                mySCHelper->subClusterEnergy(3),
                                                                                mySCHelper->subClusterEta(3),
                                                                                mySCHelper->subClusterPhi(3),
                                                                                mySCHelper->subClusterEmax(3),
                                                                                mySCHelper->subClusterE3x3(3),
                                                                                mySCHelper->nPreshowerClusters(),
                                                                                mySCHelper->eESClusters(),
                                                                                mySCHelper->esClusterEnergy(0),
                                                                                mySCHelper->esClusterEta(0),
                                                                                mySCHelper->esClusterPhi(0),
                                                                                mySCHelper->esClusterEnergy(1),
                                                                                mySCHelper->esClusterEta(1),
                                                                                mySCHelper->esClusterPhi(1),
                                                                                mySCHelper->esClusterEnergy(2),
                                                                                mySCHelper->esClusterEta(2),
                                                                                mySCHelper->esClusterPhi(2),
                                                                                ele->isEB(),
                                                                                debug_);
      RegressionMomentumError =
          regressionEvaluator_->regressionUncertaintyWithSubClusters(mySCHelper->rawEnergy(),
                                                                     mySCHelper->eta(),
                                                                     mySCHelper->phi(),
                                                                     mySCHelper->r9(),
                                                                     mySCHelper->etaWidth(),
                                                                     mySCHelper->phiWidth(),
                                                                     mySCHelper->clustersSize(),
                                                                     mySCHelper->hadronicOverEm(),
                                                                     rho,
                                                                     nvertices,
                                                                     mySCHelper->seedEta(),
                                                                     mySCHelper->seedPhi(),
                                                                     mySCHelper->seedEnergy(),
                                                                     mySCHelper->e3x3(),
                                                                     mySCHelper->e5x5(),
                                                                     mySCHelper->sigmaIetaIeta(),
                                                                     mySCHelper->spp(),
                                                                     mySCHelper->sep(),
                                                                     mySCHelper->eMax(),
                                                                     mySCHelper->e2nd(),
                                                                     mySCHelper->eTop(),
                                                                     mySCHelper->eBottom(),
                                                                     mySCHelper->eLeft(),
                                                                     mySCHelper->eRight(),
                                                                     mySCHelper->e2x5Max(),
                                                                     mySCHelper->e2x5Top(),
                                                                     mySCHelper->e2x5Bottom(),
                                                                     mySCHelper->e2x5Left(),
                                                                     mySCHelper->e2x5Right(),
                                                                     mySCHelper->ietaSeed(),
                                                                     mySCHelper->iphiSeed(),
                                                                     mySCHelper->etaCrySeed(),
                                                                     mySCHelper->phiCrySeed(),
                                                                     mySCHelper->preshowerEnergyOverRaw(),
                                                                     ele->ecalDrivenSeed(),
                                                                     ele->isEBEtaGap(),
                                                                     ele->isEBPhiGap(),
                                                                     ele->isEEDeeGap(),
                                                                     mySCHelper->eSubClusters(),
                                                                     mySCHelper->subClusterEnergy(1),
                                                                     mySCHelper->subClusterEta(1),
                                                                     mySCHelper->subClusterPhi(1),
                                                                     mySCHelper->subClusterEmax(1),
                                                                     mySCHelper->subClusterE3x3(1),
                                                                     mySCHelper->subClusterEnergy(2),
                                                                     mySCHelper->subClusterEta(2),
                                                                     mySCHelper->subClusterPhi(2),
                                                                     mySCHelper->subClusterEmax(2),
                                                                     mySCHelper->subClusterE3x3(2),
                                                                     mySCHelper->subClusterEnergy(3),
                                                                     mySCHelper->subClusterEta(3),
                                                                     mySCHelper->subClusterPhi(3),
                                                                     mySCHelper->subClusterEmax(3),
                                                                     mySCHelper->subClusterE3x3(3),
                                                                     mySCHelper->nPreshowerClusters(),
                                                                     mySCHelper->eESClusters(),
                                                                     mySCHelper->esClusterEnergy(0),
                                                                     mySCHelper->esClusterEta(0),
                                                                     mySCHelper->esClusterPhi(0),
                                                                     mySCHelper->esClusterEnergy(1),
                                                                     mySCHelper->esClusterEta(1),
                                                                     mySCHelper->esClusterPhi(1),
                                                                     mySCHelper->esClusterEnergy(2),
                                                                     mySCHelper->esClusterEta(2),
                                                                     mySCHelper->esClusterPhi(2),
                                                                     ele->isEB(),
                                                                     debug_);

      // PAT method
      if (inputCollectionType_ == 1) {
        myPatElectron->setEcalRegressionEnergy(RegressionMomentum, RegressionMomentumError);
      }
      energyValues.push_back(RegressionMomentum);
      energyErrorValues.push_back(RegressionMomentumError);

    }

    else if (energyRegressionType_ == 3) {
      RegressionMomentum = regressionEvaluator_->regressionValueWithTrkVar(ele->p(),
                                                                           mySCHelper->rawEnergy(),
                                                                           mySCHelper->eta(),
                                                                           mySCHelper->phi(),
                                                                           mySCHelper->etaWidth(),
                                                                           mySCHelper->phiWidth(),
                                                                           mySCHelper->clustersSize(),
                                                                           mySCHelper->hadronicOverEm(),
                                                                           mySCHelper->r9(),
                                                                           rho,
                                                                           nvertices,
                                                                           mySCHelper->seedEta(),
                                                                           mySCHelper->seedPhi(),
                                                                           mySCHelper->seedEnergy(),
                                                                           mySCHelper->e3x3(),
                                                                           mySCHelper->e5x5(),
                                                                           mySCHelper->sigmaIetaIeta(),
                                                                           mySCHelper->spp(),
                                                                           mySCHelper->sep(),
                                                                           mySCHelper->eMax(),
                                                                           mySCHelper->e2nd(),
                                                                           mySCHelper->eTop(),
                                                                           mySCHelper->eBottom(),
                                                                           mySCHelper->eLeft(),
                                                                           mySCHelper->eRight(),
                                                                           mySCHelper->e2x5Max(),
                                                                           mySCHelper->e2x5Top(),
                                                                           mySCHelper->e2x5Bottom(),
                                                                           mySCHelper->e2x5Left(),
                                                                           mySCHelper->e2x5Right(),
                                                                           ele->pt(),
                                                                           ele->trackMomentumAtVtx().R(),
                                                                           ele->fbrem(),
                                                                           ele->charge(),
                                                                           ele->eSuperClusterOverP(),
                                                                           mySCHelper->ietaSeed(),
                                                                           mySCHelper->iphiSeed(),
                                                                           mySCHelper->etaCrySeed(),
                                                                           mySCHelper->phiCrySeed(),
                                                                           mySCHelper->preshowerEnergy(),
                                                                           debug_);
      RegressionMomentumError = regressionEvaluator_->regressionUncertaintyWithTrkVar(ele->p(),
                                                                                      mySCHelper->rawEnergy(),
                                                                                      mySCHelper->eta(),
                                                                                      mySCHelper->phi(),
                                                                                      mySCHelper->etaWidth(),
                                                                                      mySCHelper->phiWidth(),
                                                                                      mySCHelper->clustersSize(),
                                                                                      mySCHelper->hadronicOverEm(),
                                                                                      mySCHelper->r9(),
                                                                                      rho,
                                                                                      nvertices,
                                                                                      mySCHelper->seedEta(),
                                                                                      mySCHelper->seedPhi(),
                                                                                      mySCHelper->seedEnergy(),
                                                                                      mySCHelper->e3x3(),
                                                                                      mySCHelper->e5x5(),
                                                                                      mySCHelper->sigmaIetaIeta(),
                                                                                      mySCHelper->spp(),
                                                                                      mySCHelper->sep(),
                                                                                      mySCHelper->eMax(),
                                                                                      mySCHelper->e2nd(),
                                                                                      mySCHelper->eTop(),
                                                                                      mySCHelper->eBottom(),
                                                                                      mySCHelper->eLeft(),
                                                                                      mySCHelper->eRight(),
                                                                                      mySCHelper->e2x5Max(),
                                                                                      mySCHelper->e2x5Top(),
                                                                                      mySCHelper->e2x5Bottom(),
                                                                                      mySCHelper->e2x5Left(),
                                                                                      mySCHelper->e2x5Right(),
                                                                                      ele->pt(),
                                                                                      ele->trackMomentumAtVtx().R(),
                                                                                      ele->fbrem(),
                                                                                      ele->charge(),
                                                                                      ele->eSuperClusterOverP(),
                                                                                      mySCHelper->ietaSeed(),
                                                                                      mySCHelper->iphiSeed(),
                                                                                      mySCHelper->etaCrySeed(),
                                                                                      mySCHelper->phiCrySeed(),
                                                                                      mySCHelper->preshowerEnergy(),
                                                                                      debug_);
      FinalMomentum = RegressionMomentum;
      FinalMomentumError = RegressionMomentumError;
      const math::XYZTLorentzVector& oldMomentum = ele->p4();
      math::XYZTLorentzVector newMomentum = math::XYZTLorentzVector(oldMomentum.x() * FinalMomentum / oldMomentum.t(),
                                                                    oldMomentum.y() * FinalMomentum / oldMomentum.t(),
                                                                    oldMomentum.z() * FinalMomentum / oldMomentum.t(),
                                                                    FinalMomentum);

      myPatElectron->correctEcalEnergy(RegressionMomentum, RegressionMomentumError);
      myPatElectron->correctMomentum(newMomentum, ele->trackMomentumError(), FinalMomentumError);

      energyValues.push_back(RegressionMomentum);
      energyErrorValues.push_back(RegressionMomentumError);
    } else {
      edm::LogPrint("RegressionEnergyPatElectronProducer")
          << "Error: RegressionType = " << energyRegressionType_ << " is not supported.\n";
    }

    if (inputCollectionType_ == 1) {
      patElectrons->push_back(*myPatElectron);
    }
    if (myPatElectron)
      delete myPatElectron;
    if (mySCHelper)
      delete mySCHelper;
  }  // loop on electrons

  // Write the new collection in the event (AOD case)
  if (inputCollectionType_ == 1) {
    event.put(std::move(patElectrons));
  }

  // now AOD case: write ValueMaps
  if (produceValueMaps_) {
    if (inputCollectionType_ == 0) {
      energyFiller.insert(gsfCollectionH, energyValues.begin(), energyValues.end());
      energyErrorFiller.insert(gsfCollectionH, energyErrorValues.begin(), energyErrorValues.end());
    } else if (inputCollectionType_ == 1) {
      energyFiller.insert(patCollectionH, energyValues.begin(), energyValues.end());
      energyErrorFiller.insert(patCollectionH, energyErrorValues.begin(), energyErrorValues.end());
    }

    energyFiller.fill();
    energyErrorFiller.fill();
    event.put(std::move(regrEnergyMap), nameEnergyReg_);
    event.put(std::move(regrEnergyErrorMap), nameEnergyErrorReg_);
  }
}

#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/Framework/interface/ESProducer.h"
#include "FWCore/Framework/interface/ModuleFactory.h"
DEFINE_FWK_MODULE(RegressionEnergyPatElectronProducer);