Multi5x5SuperClusterProducer.cc

Go to the documentation of this file.

// C/C++ headers
#include <iostream>
#include <vector>
#include <memory>
#include <sstream>

// Framework
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "DataFormats/Common/interface/Handle.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "FWCore/Utilities/interface/Exception.h"

// Reconstruction Classes
#include "DataFormats/EgammaReco/interface/BasicCluster.h"

#include "DataFormats/EgammaReco/interface/SuperCluster.h"
#include "DataFormats/EgammaReco/interface/SuperClusterFwd.h"

// Class header file
#include "RecoEcal/EgammaClusterProducers/interface/Multi5x5SuperClusterProducer.h"


Multi5x5SuperClusterProducer::Multi5x5SuperClusterProducer(const edm::ParameterSet& ps):
  barrelEtaSearchRoad_{static_cast<float>(ps.getParameter<double>("barrelEtaSearchRoad"))},
  barrelPhiSearchRoad_{static_cast<float>(ps.getParameter<double>("barrelPhiSearchRoad"))},
  endcapEtaSearchRoad_{static_cast<float>(ps.getParameter<double>("endcapEtaSearchRoad"))},
  endcapPhiSearchRoad_{static_cast<float>(ps.getParameter<double>("endcapPhiSearchRoad"))},
  seedTransverseEnergyThreshold_{static_cast<float>(ps.getParameter<double>("seedTransverseEnergyThreshold"))},
  doBarrel_{ps.getParameter<bool>("doBarrel")},
  doEndcaps_{ps.getParameter<bool>("doEndcaps")},
  totalE{0.},
  noSuperClusters{0}
{

  if(doEndcaps_) {
    eeClustersToken_ = 
      consumes<reco::BasicClusterCollection>(ps.getParameter<edm::InputTag>("endcapClusterTag"));
  }
  if(doBarrel_) {
    ebClustersToken_ = 
      consumes<reco::BasicClusterCollection>(ps.getParameter<edm::InputTag>("barrelClusterTag"));
  }

  const edm::ParameterSet bremRecoveryPset = ps.getParameter<edm::ParameterSet>("bremRecoveryPset");
  bool dynamicPhiRoad = ps.getParameter<bool>("dynamicPhiRoad");

  bremAlgo_p = std::make_unique<Multi5x5BremRecoveryClusterAlgo>(bremRecoveryPset, barrelEtaSearchRoad_, barrelPhiSearchRoad_, 
                                                                 endcapEtaSearchRoad_, endcapPhiSearchRoad_, 
                                                                 dynamicPhiRoad, seedTransverseEnergyThreshold_);

  if(doEndcaps_) {
   endcapPutToken_ =  produces< reco::SuperClusterCollection >(ps.getParameter<std::string>("endcapSuperclusterCollection"));
  }
  if(doBarrel_) {
    barrelPutToken_ = produces< reco::SuperClusterCollection >(ps.getParameter<std::string>("barrelSuperclusterCollection"));
  }
}


void
Multi5x5SuperClusterProducer::endStream() {
  double averEnergy = 0.;
  std::ostringstream str;
  str << "Multi5x5SuperClusterProducer::endJob()\n"
      << "  total # reconstructed super clusters: " << noSuperClusters << "\n"
      << "  total energy of all clusters: " << totalE << "\n";
  if(noSuperClusters>0) { 
    averEnergy = totalE / noSuperClusters;
    str << "  average SuperCluster energy = " << averEnergy << "\n";
  }
  edm::LogInfo("Multi5x5SuperClusterProducerInfo") << str.str() << "\n";

}


void Multi5x5SuperClusterProducer::produce(edm::Event& evt, const edm::EventSetup& es)
{
  if(doEndcaps_)
    produceSuperclustersForECALPart(evt, eeClustersToken_, endcapPutToken_);

  if(doBarrel_)
    produceSuperclustersForECALPart(evt, ebClustersToken_, barrelPutToken_);
}


void Multi5x5SuperClusterProducer::
produceSuperclustersForECALPart(edm::Event& evt, 
                                const edm::EDGetTokenT<reco::BasicClusterCollection>& clustersToken,
                                const edm::EDPutTokenT<reco::SuperClusterCollection>& putToken)
{
  // get the cluster collection out and turn it to a BasicClusterRefVector:
  reco::CaloClusterPtrVector clusterPtrVector_p=getClusterPtrVector(evt, clustersToken);

  // run the brem recovery and get the SC collection
  reco::SuperClusterCollection superclusters_ap(bremAlgo_p->makeSuperClusters(clusterPtrVector_p));

  // count the total energy and the number of superclusters
  for (auto const& sc: superclusters_ap)
    {
      totalE += sc.energy();
      noSuperClusters++;
    }

  // put the SC collection in the event
  evt.emplace(putToken,std::move(superclusters_ap));

}

reco::CaloClusterPtrVector
Multi5x5SuperClusterProducer::getClusterPtrVector(edm::Event& evt, 
                                                  const edm::EDGetTokenT<reco::BasicClusterCollection>& clustersToken) const
{  
  reco::CaloClusterPtrVector clusterPtrVector_p;
  edm::Handle<reco::BasicClusterCollection> bccHandle;
  evt.getByToken(clustersToken, bccHandle);
  
  const reco::BasicClusterCollection *clusterCollection_p = bccHandle.product();
  clusterPtrVector_p.reserve(clusterCollection_p->size());
  for (unsigned int i = 0; i < clusterCollection_p->size(); i++)
    {
      clusterPtrVector_p.push_back(reco::CaloClusterPtr(bccHandle, i));
    }
  return clusterPtrVector_p;
}