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File indexing completed on 2021-08-28 03:59:09

0001 //
0002 // $Id: PATJetSlimmer.cc,v 1.1 2011/03/24 18:45:45 mwlebour Exp $
0003 //
0004 
0005 /**
0006   \class    pat::PATJetSlimmer PATJetSlimmer.h "PhysicsTools/PatAlgos/interface/PATJetSlimmer.h"
0007   \brief    Matcher of reconstructed objects to L1 Muons 
0008             
0009   \author   Giovanni Petrucciani
0010 */
0011 
0012 #include "DataFormats/Candidate/interface/CandidateFwd.h"
0013 #include "FWCore/Framework/interface/Frameworkfwd.h"
0014 #include "FWCore/Framework/interface/stream/EDProducer.h"
0015 #include "FWCore/Framework/interface/Event.h"
0016 #include "FWCore/ParameterSet/interface/ParameterSet.h"
0017 #include "DataFormats/PatCandidates/interface/PackedCandidate.h"
0018 #include "DataFormats/Common/interface/RefToPtr.h"
0019 #include "CommonTools/UtilAlgos/interface/StringCutObjectSelector.h"
0020 
0021 #include "DataFormats/PatCandidates/interface/Jet.h"
0022 #include "PhysicsTools/PatAlgos/interface/ObjectModifier.h"
0023 
0024 namespace pat {
0025 
0026   class PATJetSlimmer : public edm::stream::EDProducer<> {
0027   public:
0028     explicit PATJetSlimmer(const edm::ParameterSet& iConfig);
0029     ~PATJetSlimmer() override {}
0030 
0031     void produce(edm::Event& iEvent, const edm::EventSetup& iSetup) override;
0032 
0033   private:
0034     edm::EDGetTokenT<edm::Association<pat::PackedCandidateCollection>> pf2pc_;
0035     edm::EDGetTokenT<edm::ValueMap<reco::CandidatePtr>> pf2pcAny_;
0036     const edm::EDGetTokenT<edm::View<pat::Jet>> jets_;
0037     const StringCutObjectSelector<pat::Jet> dropJetVars_, dropDaughters_, rekeyDaughters_, dropTrackRefs_,
0038         dropSpecific_, dropTagInfos_;
0039     const bool modifyJet_, mayNeedDaughterMap_, mixedDaughters_;
0040     std::unique_ptr<pat::ObjectModifier<pat::Jet>> jetModifier_;
0041   };
0042 
0043 }  // namespace pat
0044 
0045 pat::PATJetSlimmer::PATJetSlimmer(const edm::ParameterSet& iConfig)
0046     : jets_(consumes<edm::View<pat::Jet>>(iConfig.getParameter<edm::InputTag>("src"))),
0047       dropJetVars_(iConfig.getParameter<std::string>("dropJetVars")),
0048       dropDaughters_(iConfig.getParameter<std::string>("dropDaughters")),
0049       rekeyDaughters_(iConfig.getParameter<std::string>("rekeyDaughters")),
0050       dropTrackRefs_(iConfig.getParameter<std::string>("dropTrackRefs")),
0051       dropSpecific_(iConfig.getParameter<std::string>("dropSpecific")),
0052       dropTagInfos_(iConfig.getParameter<std::string>("dropTagInfos")),
0053       modifyJet_(iConfig.getParameter<bool>("modifyJets")),
0054       mayNeedDaughterMap_(iConfig.getParameter<std::string>("dropDaughters") != "1" &&
0055                           iConfig.getParameter<std::string>("rekeyDaughters") != "0"),
0056       mixedDaughters_(iConfig.getParameter<bool>("mixedDaughters")) {
0057   if (mayNeedDaughterMap_) {
0058     if (mixedDaughters_) {
0059       pf2pcAny_ =
0060           consumes<edm::ValueMap<reco::CandidatePtr>>(iConfig.getParameter<edm::InputTag>("packedPFCandidates"));
0061     } else {
0062       pf2pc_ = consumes<edm::Association<pat::PackedCandidateCollection>>(
0063           iConfig.getParameter<edm::InputTag>("packedPFCandidates"));
0064     }
0065   }
0066   if (modifyJet_) {
0067     const edm::ParameterSet& mod_config = iConfig.getParameter<edm::ParameterSet>("modifierConfig");
0068     jetModifier_ = std::make_unique<pat::ObjectModifier<pat::Jet>>(mod_config, consumesCollector());
0069   }
0070   produces<std::vector<pat::Jet>>();
0071 }
0072 
0073 void pat::PATJetSlimmer::produce(edm::Event& iEvent, const edm::EventSetup& iSetup) {
0074   using namespace edm;
0075   using namespace std;
0076 
0077   if (modifyJet_)
0078     jetModifier_->setEventContent(iSetup);
0079 
0080   Handle<View<pat::Jet>> src;
0081   iEvent.getByToken(jets_, src);
0082   Handle<edm::Association<pat::PackedCandidateCollection>> pf2pc;
0083   Handle<edm::ValueMap<reco::CandidatePtr>> pf2pcAny;
0084   if (mayNeedDaughterMap_) {
0085     if (mixedDaughters_) {
0086       iEvent.getByToken(pf2pcAny_, pf2pcAny);
0087     } else {
0088       iEvent.getByToken(pf2pc_, pf2pc);
0089     }
0090   }
0091 
0092   auto out = std::make_unique<std::vector<pat::Jet>>();
0093   out->reserve(src->size());
0094 
0095   if (modifyJet_) {
0096     jetModifier_->setEvent(iEvent);
0097   }
0098 
0099   for (edm::View<pat::Jet>::const_iterator it = src->begin(), ed = src->end(); it != ed; ++it) {
0100     out->push_back(*it);
0101     pat::Jet& jet = out->back();
0102 
0103     if (modifyJet_) {
0104       jetModifier_->modify(jet);
0105     }
0106 
0107     if (dropTagInfos_(*it)) {
0108       jet.tagInfoLabels_.clear();
0109       jet.tagInfos_.clear();
0110       jet.tagInfosFwdPtr_.clear();
0111     }
0112     if (dropJetVars_(*it)) {
0113       //             jet.setJetArea(0);
0114       jet.setNPasses(0);
0115       //             jet.setPileup(0);
0116     }
0117     if (dropTrackRefs_(*it)) {
0118       jet.setAssociatedTracks(reco::TrackRefVector());
0119     }
0120     if (dropDaughters_(*it)) {
0121       jet.clearDaughters();
0122       jet.pfCandidatesFwdPtr_.clear();
0123       jet.caloTowersFwdPtr_.clear();
0124     } else if (rekeyDaughters_(*it)) {  //rekey
0125       //copy old
0126       reco::CompositePtrCandidate::daughters old = jet.daughterPtrVector();
0127       jet.clearDaughters();
0128       if (mixedDaughters_) {
0129         std::vector<reco::CandidatePtr> ptrs;
0130         for (const reco::CandidatePtr& oldptr : old) {
0131           ptrs.push_back((*pf2pcAny)[oldptr]);
0132         }
0133         std::sort(ptrs.begin(), ptrs.end());
0134         for (const reco::CandidatePtr& newptr : ptrs) {
0135           jet.addDaughter(newptr);
0136         }
0137       } else {
0138         std::map<unsigned int, reco::CandidatePtr> ptrs;
0139         for (unsigned int i = 0; i < old.size(); i++) {
0140           //    jet.addDaughter(refToPtr((*pf2pc)[old[i]]));
0141           ptrs[((*pf2pc)[old[i]]).key()] = refToPtr((*pf2pc)[old[i]]);
0142         }
0143         for (std::map<unsigned int, reco::CandidatePtr>::iterator itp = ptrs.begin(); itp != ptrs.end();
0144              itp++)  //iterate on sorted items
0145         {
0146           jet.addDaughter(itp->second);
0147         }
0148       }
0149     }
0150     if (dropSpecific_(*it)) {
0151       // FIXME add method in pat::Jet
0152       jet.specificCalo_.clear();
0153       jet.specificPF_.clear();
0154     }
0155     //         if (dropJetCorrFactors_(*it)) {
0156     //             // FIXME add method in pat::Jet
0157     //             jet.jetEnergyCorrections_.clear();
0158     //         }
0159   }
0160 
0161   iEvent.put(std::move(out));
0162 }
0163 
0164 #include "FWCore/Framework/interface/MakerMacros.h"
0165 using namespace pat;
0166 DEFINE_FWK_MODULE(PATJetSlimmer);