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File indexing completed on 2021-02-14 13:33:04

0001 #include "FWCore/Framework/interface/MakerMacros.h"
0002 
0003 #include "FWCore/Framework/interface/EDProducer.h"
0004 #include "FWCore/Framework/interface/Event.h"
0005 #include "FWCore/ParameterSet/interface/ParameterSet.h"
0006 #include "FWCore/Utilities/interface/InputTag.h"
0007 
0008 #include "DataFormats/PatCandidates/interface/EventHypothesis.h"
0009 #include "DataFormats/PatCandidates/interface/EventHypothesisLooper.h"
0010 #include "DataFormats/Common/interface/ValueMap.h"
0011 #include "DataFormats/Math/interface/deltaR.h"
0012 #include "DataFormats/MuonReco/interface/Muon.h"
0013 #include "DataFormats/TrackReco/interface/Track.h"
0014 #include "DataFormats/JetReco/interface/CaloJet.h"
0015 
0016 class TestEventHypothesisWriter : public edm::EDProducer {
0017 public:
0018   TestEventHypothesisWriter(const edm::ParameterSet &iConfig);
0019   virtual void produce(edm::Event &iEvent, const edm::EventSetup &iSetup);
0020   void runTests(const pat::EventHypothesis &h);
0021 
0022 private:
0023   edm::EDGetTokenT<edm::View<reco::Candidate>> jetsToken_;
0024   edm::EDGetTokenT<edm::View<reco::Candidate>> muonsToken_;
0025 };
0026 
0027 TestEventHypothesisWriter::TestEventHypothesisWriter(const edm::ParameterSet &iConfig)
0028     : jetsToken_(consumes<edm::View<reco::Candidate>>(iConfig.getParameter<edm::InputTag>("jets"))),
0029       muonsToken_(consumes<edm::View<reco::Candidate>>(iConfig.getParameter<edm::InputTag>("muons"))) {
0030   produces<std::vector<pat::EventHypothesis>>();
0031   produces<edm::ValueMap<double>>("deltaR");
0032 }
0033 
0034 void TestEventHypothesisWriter::runTests(const pat::EventHypothesis &h) {
0035   using namespace std;
0036   using namespace pat::eventhypothesis;
0037   cout << "Test 1: Print the muon " << h["mu"]->pt() << endl;
0038 
0039   for (size_t i = 0; i < h.count() - 2; ++i) {
0040     cout << "Test 2." << (i + 1) << ": Getting of the other jets: " << h.get("other jet", i)->et() << endl;
0041   }
0042 
0043   cout << "Test 3: count: " << (h.count() - 2) << " vs " << h.count("other jet") << endl;
0044 
0045   cout << "Test 4: regexp count: " << (h.count() - 1) << " vs " << h.count(".*jet") << endl;
0046 
0047   cout << "Test 5.0: all with muon: " << h.all("mu").size() << endl;
0048   cout << "Test 5.1: all with muon: " << h.all("mu").front()->pt() << endl;
0049   cout << "Test 5.2: all with other jets: " << h.all("other jet").size() << endl;
0050   cout << "Test 5.3: all with regex: " << h.all(".*jet").size() << endl;
0051 
0052   cout << "Test 6.0: get as : " << h.getAs<reco::CaloJet>("nearest jet")->maxEInHadTowers() << endl;
0053 
0054   cout << "Loopers" << endl;
0055   cout << "Test 7.0: simple looper on all" << endl;
0056   for (CandLooper jet = h.loop(); jet; ++jet) {
0057     cout << "\titem " << jet.index() << ", role " << jet.role() << ": " << jet->et() << endl;
0058   }
0059   cout << "Test 7.1: simple looper on jets" << endl;
0060   for (CandLooper jet = h.loop(".*jet"); jet; ++jet) {
0061     cout << "\titem " << jet.index() << ", role " << jet.role() << ": " << jet->et() << endl;
0062   }
0063   cout << "Test 7.2: loopAs on jets" << endl;
0064   for (Looper<reco::CaloJet> jet = h.loopAs<reco::CaloJet>(".*jet"); jet; ++jet) {
0065     cout << "\titem " << jet.index() << ", role " << jet.role() << ": " << jet->maxEInHadTowers() << endl;
0066   }
0067 }
0068 
0069 void TestEventHypothesisWriter::produce(edm::Event &iEvent, const edm::EventSetup &iSetup) {
0070   using namespace edm;
0071   using namespace std;
0072   using reco::Candidate;
0073   using reco::CandidatePtr;
0074 
0075   auto hyps = std::make_unique<std::vector<pat::EventHypothesis>>();
0076   ;
0077   vector<double> deltaRs;
0078 
0079   Handle<View<Candidate>> hMu;
0080   iEvent.getByToken(muonsToken_, hMu);
0081 
0082   Handle<View<Candidate>> hJet;
0083   iEvent.getByToken(jetsToken_, hJet);
0084 
0085   // fake analysis
0086   for (size_t imu = 0, nmu = hMu->size(); imu < nmu; ++imu) {
0087     pat::EventHypothesis h;
0088     CandidatePtr mu = hMu->ptrAt(imu);
0089     h.add(mu, "mu");
0090 
0091     int bestj = -1;
0092     double drmin = 99.0;
0093     for (size_t ij = 0, nj = hJet->size(); ij < nj; ++ij) {
0094       CandidatePtr jet = hJet->ptrAt(ij);
0095       if (jet->et() < 10)
0096         break;
0097       double dr = deltaR(*jet, *mu);
0098       if (dr < drmin) {
0099         bestj = ij;
0100         drmin = dr;
0101       }
0102     }
0103     if (bestj == -1)
0104       continue;
0105 
0106     h.add(hJet->ptrAt(bestj), "nearest jet");
0107 
0108     for (size_t ij = 0, nj = hJet->size(); ij < nj; ++ij) {
0109       if (ij == size_t(bestj))
0110         continue;
0111       CandidatePtr jet = hJet->ptrAt(ij);
0112       if (jet->et() < 10)
0113         break;
0114       h.add(jet, "other jet");
0115     }
0116 
0117     // save hypothesis
0118     deltaRs.push_back(drmin);
0119 
0120     runTests(h);
0121 
0122     hyps->push_back(h);
0123   }
0124 
0125   std::cout << "Found " << deltaRs.size() << " possible options" << std::endl;
0126 
0127   // work done, save results
0128   OrphanHandle<vector<pat::EventHypothesis>> handle = iEvent.put(std::move(hyps));
0129   auto deltaRMap = std::make_unique<ValueMap<double>>();
0130   //if (deltaRs.size() > 0) {
0131   ValueMap<double>::Filler filler(*deltaRMap);
0132   filler.insert(handle, deltaRs.begin(), deltaRs.end());
0133   filler.fill();
0134   //}
0135   iEvent.put(std::move(deltaRMap), "deltaR");
0136 }
0137 
0138 DEFINE_FWK_MODULE(TestEventHypothesisWriter);