HLTHcalTowerFilter.cc

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#include "HLTrigger/HLTcore/interface/HLTFilter.h"

#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/ParameterSet/interface/ConfigurationDescriptions.h"
#include "FWCore/ParameterSet/interface/ParameterSetDescription.h"

//
// class declaration
//
class HLTHcalTowerFilter : public HLTFilter
{
public:
  explicit HLTHcalTowerFilter(const edm::ParameterSet &);
  ~HLTHcalTowerFilter() override;
  static void fillDescriptions(edm::ConfigurationDescriptions & descriptions);

private:
  bool hltFilter(edm::Event &, const edm::EventSetup &, trigger::TriggerFilterObjectWithRefs & filterproduct) const override;

  edm::EDGetTokenT<CaloTowerCollection> inputToken_;
  edm::InputTag inputTag_;    // input tag identifying product
  double min_E_HB_;           // energy threshold for HB in GeV
  double min_E_HE_;           // energy threshold for HE in GeV
  double min_E_HF_;           // energy threshold for HF in GeV
  int max_N_HB_;              // maximum number for HB
  int max_N_HE_;              // maximum number for HB
  int max_N_HF_;              // maximum number for HB
  int min_N_HF_;              // minimum number for HB
  int min_N_HFM_;             // minimum number for HB-
  int min_N_HFP_;             // minimum number for HB+
};

#include <memory>

#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "DataFormats/Common/interface/Handle.h"
#include "DataFormats/Common/interface/Ref.h"
#include "DataFormats/HLTReco/interface/TriggerFilterObjectWithRefs.h"
#include "DataFormats/HLTReco/interface/TriggerTypeDefs.h"

//
// constructors and destructor
//
HLTHcalTowerFilter::HLTHcalTowerFilter(const edm::ParameterSet& config) : HLTFilter(config),
  inputTag_ (config.getParameter<edm::InputTag>("inputTag")),
  min_E_HB_ (config.getParameter<double>       ("MinE_HB")),
  min_E_HE_ (config.getParameter<double>       ("MinE_HE")),
  min_E_HF_ (config.getParameter<double>       ("MinE_HF")),
  max_N_HB_ (config.getParameter<int>          ("MaxN_HB")),
  max_N_HE_ (config.getParameter<int>          ("MaxN_HE")),
  max_N_HF_ (config.getParameter<int>          ("MaxN_HF")),
  min_N_HF_ (-1),
  min_N_HFM_ (-1),
  min_N_HFP_ (-1)
{

  if (config.existsAs<int>("MinN_HF")){
    min_N_HF_=config.getParameter<int>("MinN_HF");
  }
  if (config.existsAs<int>("MinN_HFM")){
    min_N_HFM_=config.getParameter<int>("MinN_HFM");
  }
  if (config.existsAs<int>("MinN_HFP")){
    min_N_HFP_=config.getParameter<int>("MinN_HFP");
  }

  inputToken_ = consumes<CaloTowerCollection>(inputTag_);
}

HLTHcalTowerFilter::~HLTHcalTowerFilter() = default;

void
HLTHcalTowerFilter::fillDescriptions(edm::ConfigurationDescriptions& descriptions) {
  edm::ParameterSetDescription desc;
  makeHLTFilterDescription(desc);
  desc.add<edm::InputTag>("inputTag",edm::InputTag("hltTowerMakerForHcal"));
  desc.add<double>("MinE_HB",1.5);
  desc.add<double>("MinE_HE",2.5);
  desc.add<double>("MinE_HF",9.0);
  desc.add<int>("MaxN_HB",2);
  desc.add<int>("MaxN_HE",2);
  desc.add<int>("MaxN_HF",8);
  desc.add<int>("MinN_HF",-1);
  desc.add<int>("MinN_HFM",-1);
  desc.add<int>("MinN_HFP",-1);
  descriptions.add("hltHcalTowerFilter",desc);
}

//
// member functions
//

// ------------ method called to produce the data  ------------
bool
HLTHcalTowerFilter::hltFilter(edm::Event& event, const edm::EventSetup& setup, trigger::TriggerFilterObjectWithRefs & filterproduct) const
{
  using namespace std;
  using namespace edm;
  using namespace reco;
  using namespace trigger;

  // The filter object
  if (saveTags()) filterproduct.addCollectionTag(inputTag_);

  // get hold of collection of objects
  Handle<CaloTowerCollection> towers;
  event.getByToken(inputToken_, towers);

  // look at all objects, check cuts and add to filter object
  int n_HB = 0;
  int n_HE = 0;
  int n_HF = 0;
  int n_HFM = 0;
  int n_HFP = 0;
  double abseta = 0.0;
  double eta = 0.0;
  for(auto const & i : *towers)
    {
      eta    = i.eta();
      abseta = std::abs(eta);
      if(abseta<1.305)
    {
      if(i.hadEnergy() >= min_E_HB_)
        {
          n_HB++;
          //edm::Ref<CaloTowerCollection> ref(towers, std::distance(towers->begin(), i));
          //filterproduct.addObject(TriggerJet, ref);
        }
    }
      else if(abseta>=1.305 && abseta<3)
    {
      if(i.hadEnergy() >= min_E_HE_)
        {
          n_HE++;
          //edm::Ref<CaloTowerCollection> ref(towers, std::distance(towers->begin(), i));
          //filterproduct.addObject(TriggerJet, ref);
        }
    }
      else
    {
      if(i.hadEnergy() >= min_E_HF_)
        {
          n_HF++;
          //edm::Ref<CaloTowerCollection> ref(towers, std::distance(towers->begin(), i));
          //filterproduct.addObject(TriggerJet, ref);
          if(eta >= 3) { n_HFP++; } else { n_HFM++; }
        }
    }
    }

  // filter decision
  bool accept(n_HB<max_N_HB_ && n_HE<max_N_HE_ && n_HF<max_N_HF_ && n_HFP>=min_N_HFP_ && n_HFM>=min_N_HFM_ && n_HF>=min_N_HF_);

  return accept;
}

// define as a framework module
#include "FWCore/Framework/interface/MakerMacros.h"
DEFINE_FWK_MODULE(HLTHcalTowerFilter);