SubEventGenJetProducer.h

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#ifndef RecoJets_JetProducers_SubEventGenJetProducer_h
#define RecoJets_JetProducers_SubEventGenJetProducer_h

/* *********************************************************
  \class SubEventGenJetProducer

  \brief Jet producer to produce jets from 
  \causally independent sub-events inside one event 
  \(for heavy ions or pile up)

 ************************************************************/

#include <memory>
#include <vector>
#include "RecoJets/JetProducers/plugins/VirtualJetProducer.h"
#include "DataFormats/JetReco/interface/GenJetCollection.h"

namespace cms {
  class SubEventGenJetProducer : public VirtualJetProducer {
  public:
    SubEventGenJetProducer(const edm::ParameterSet& ps);
    ~SubEventGenJetProducer() override {}
    void produce(edm::Event&, const edm::EventSetup&) override;
    void runAlgorithm(edm::Event&, const edm::EventSetup&) override;

  protected:
    std::vector<std::vector<fastjet::PseudoJet>> subInputs_;
    std::unique_ptr<std::vector<reco::GenJet>> jets_;
    std::vector<int> hydroTag_;
    std::vector<int> nSubParticles_;
    bool ignoreHydro_;

  protected:
    // overridden inputTowers method. Resets fjCompoundJets_ and
    // calls VirtualJetProducer::inputTowers
    void inputTowers() override;

  private:
    edm::EDGetTokenT<reco::CandidateView> input_cand_token_;
  };

}  // namespace cms

#endif