HLTJetL1MatchProducer.cc

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#include <string>

#include "HLTrigger/JetMET/interface/HLTJetL1MatchProducer.h"
#include "DataFormats/Common/interface/Handle.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "DataFormats/Math/interface/deltaPhi.h"

#include "FWCore/ParameterSet/interface/ConfigurationDescriptions.h"
#include "FWCore/ParameterSet/interface/ParameterSetDescription.h"
#include "HLTrigger/HLTcore/interface/defaultModuleLabel.h"

template <typename T>
HLTJetL1MatchProducer<T>::HLTJetL1MatchProducer(const edm::ParameterSet& iConfig) {
  jetsInput_ = iConfig.template getParameter<edm::InputTag>("jetsInput");
  L1TauJets_ = iConfig.template getParameter<edm::InputTag>("L1TauJets");
  L1CenJets_ = iConfig.template getParameter<edm::InputTag>("L1CenJets");
  L1ForJets_ = iConfig.template getParameter<edm::InputTag>("L1ForJets");
  DeltaR_ = iConfig.template getParameter<double>("DeltaR");

  typedef std::vector<T> TCollection;
  m_theJetToken = consumes<TCollection>(jetsInput_);
  m_theL1TauJetToken = consumes<l1extra::L1JetParticleCollection>(L1TauJets_);
  m_theL1CenJetToken = consumes<l1extra::L1JetParticleCollection>(L1CenJets_);
  m_theL1ForJetToken = consumes<l1extra::L1JetParticleCollection>(L1ForJets_);
  produces<TCollection>();
}

template <typename T>
void HLTJetL1MatchProducer<T>::beginJob() {}

template <typename T>
HLTJetL1MatchProducer<T>::~HLTJetL1MatchProducer() = default;

template <typename T>
void HLTJetL1MatchProducer<T>::fillDescriptions(edm::ConfigurationDescriptions& descriptions) {
  edm::ParameterSetDescription desc;
  desc.add<edm::InputTag>("jetsInput", edm::InputTag("hltAntiKT5PFJets"));
  desc.add<edm::InputTag>("L1TauJets", edm::InputTag("hltL1extraParticles", "Tau"));
  desc.add<edm::InputTag>("L1CenJets", edm::InputTag("hltL1extraParticles", "Central"));
  desc.add<edm::InputTag>("L1ForJets", edm::InputTag("hltL1extraParticles", "Forward"));
  desc.add<double>("DeltaR", 0.5);
  descriptions.add(defaultModuleLabel<HLTJetL1MatchProducer<T>>(), desc);
}

template <typename T>
void HLTJetL1MatchProducer<T>::produce(edm::Event& iEvent, const edm::EventSetup& iSetup) {
  typedef std::vector<T> TCollection;

  edm::Handle<TCollection> jets;
  iEvent.getByToken(m_theJetToken, jets);

  std::unique_ptr<TCollection> result(new TCollection);

  edm::Handle<l1extra::L1JetParticleCollection> l1TauJets;
  iEvent.getByToken(m_theL1TauJetToken, l1TauJets);

  edm::Handle<l1extra::L1JetParticleCollection> l1CenJets;
  iEvent.getByToken(m_theL1CenJetToken, l1CenJets);

  edm::Handle<l1extra::L1JetParticleCollection> l1ForJets;
  iEvent.getByToken(m_theL1ForJetToken, l1ForJets);

  typename TCollection::const_iterator jet_iter;
  for (jet_iter = jets->begin(); jet_iter != jets->end(); ++jet_iter) {
    bool isMatched = false;

    //std::cout << "FL: l1TauJets.size  = " << l1TauJets->size() << std::endl;
    for (unsigned int jetc = 0; jetc < l1TauJets->size(); ++jetc) {
      const double deltaeta = jet_iter->eta() - (*l1TauJets)[jetc].eta();
      const double deltaphi = deltaPhi(jet_iter->phi(), (*l1TauJets)[jetc].phi());
      //std::cout << "FL: sqrt(2) = " << sqrt(2) << std::endl;
      if (sqrt(deltaeta * deltaeta + deltaphi * deltaphi) < DeltaR_)
        isMatched = true;
    }

    for (unsigned int jetc = 0; jetc < l1CenJets->size(); ++jetc) {
      const double deltaeta = jet_iter->eta() - (*l1CenJets)[jetc].eta();
      const double deltaphi = deltaPhi(jet_iter->phi(), (*l1CenJets)[jetc].phi());
      if (sqrt(deltaeta * deltaeta + deltaphi * deltaphi) < DeltaR_)
        isMatched = true;
    }

    for (unsigned int jetc = 0; jetc < l1ForJets->size(); ++jetc) {
      const double deltaeta = jet_iter->eta() - (*l1ForJets)[jetc].eta();
      const double deltaphi = deltaPhi(jet_iter->phi(), (*l1ForJets)[jetc].phi());
      if (sqrt(deltaeta * deltaeta + deltaphi * deltaphi) < DeltaR_)
        isMatched = true;
    }

    if (isMatched == true)
      result->push_back(*jet_iter);

  }  // jet_iter

  iEvent.put(std::move(result));
}