CaloTowerCreatorForTauHLT.cc

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// makes CaloTowerCandidates from CaloTowers
// original author: L.Lista INFN, modifyed by: F.Ratnikov UMd 
// Author for regionality A. Nikitenko
// Modified by S. Gennai

#include "DataFormats/RecoCandidate/interface/RecoCaloTowerCandidate.h"
#include "DataFormats/Common/interface/Handle.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "RecoTauTag/HLTProducers/interface/CaloTowerCreatorForTauHLT.h"
// Math
#include "Math/GenVector/VectorUtil.h"
#include <cmath>

using namespace edm;
using namespace reco;
using namespace std;
using namespace l1extra ;

CaloTowerCreatorForTauHLT::CaloTowerCreatorForTauHLT( const ParameterSet & p ) 
  :
  mVerbose (p.getUntrackedParameter<int> ("verbose", 0)),
  mtowers_token (consumes<CaloTowerCollection>(p.getParameter<InputTag>("towers") ) ),
  mCone (p.getParameter<double> ("UseTowersInCone")),
  mTauTrigger_token (consumes<L1JetParticleCollection>(p.getParameter<InputTag>("TauTrigger") ) ),
  mEtThreshold (p.getParameter<double> ("minimumEt")),
  mEThreshold (p.getParameter<double> ("minimumE")),
  mTauId (p.getParameter<int> ("TauId"))
{
  produces<CaloTowerCollection>();
}

CaloTowerCreatorForTauHLT::~CaloTowerCreatorForTauHLT() {
}

void CaloTowerCreatorForTauHLT::produce( StreamID sid, Event& evt, const EventSetup& stp ) const {
  edm::Handle<CaloTowerCollection> caloTowers;
  evt.getByToken( mtowers_token, caloTowers );

  // imitate L1 seeds
  edm::Handle<L1JetParticleCollection> jetsgen;
  evt.getByToken( mTauTrigger_token, jetsgen);

  std::auto_ptr<CaloTowerCollection> cands( new CaloTowerCollection );
  cands->reserve( caloTowers->size() );
  
  int idTau =0;
  L1JetParticleCollection::const_iterator myL1Jet = jetsgen->begin();
  for(;myL1Jet != jetsgen->end();myL1Jet++)
    {
      if(idTau == mTauId)
    {
      double Sum08 = 0.;
      
      unsigned idx = 0;
      for (; idx < caloTowers->size(); idx++) {
        const CaloTower* cal = &((*caloTowers) [idx]);
        bool isAccepted = false;
        if (mVerbose == 2) {
          edm::LogInfo("JetDebugInfo") << "CaloTowerCreatorForTauHLT::produce-> " << idx << " tower et/eta/phi/e: " 
            << cal->et() << '/' << cal->eta() << '/' << cal->phi() << '/' << cal->energy() << " is...";
        }
        if (cal->et() >= mEtThreshold && cal->energy() >= mEThreshold ) {
          math::PtEtaPhiELorentzVector p( cal->et(), cal->eta(), cal->phi(), cal->energy() );
          double delta  = ROOT::Math::VectorUtil::DeltaR((*myL1Jet).p4().Vect(), p);
          
          if(delta < mCone) {
        isAccepted = true;
        Sum08 += cal->et(); 
        cands->push_back( *cal );
          }
        }
        if (mVerbose == 2){
          if (isAccepted) edm::LogInfo("JetDebugInfo") << "accepted \n";
          else edm::LogInfo("JetDebugInfo") << "rejected \n";
        }
      }

    }
      idTau++;
    }

  evt.put( cands );
  
}

void CaloTowerCreatorForTauHLT::fillDescriptions( edm::ConfigurationDescriptions & desc ) {

  edm::ParameterSetDescription aDesc;
  aDesc.add<edm::InputTag>("TauTrigger",edm::InputTag("l1extraParticles","Tau"))->setComment("L1ExtraJet collection for seeding");
  aDesc.add<int>("TauId",0)->setComment("Item from L1ExtraJet collection used for seeding");
  aDesc.add<edm::InputTag>("towers",edm::InputTag("towerMaker"))->setComment("Input tower collection");
  aDesc.add<double>("UseTowersInCone",0.8)->setComment("Radius of cone around seed");
  aDesc.add<double>("minimumE",0.8)->setComment("Minimum tower energy");
  aDesc.add<double>("minimumEt",0.5)->setComment("Minimum tower ET");
  aDesc.addUntracked<int>("verbose",0)->setComment("Verbosity level; 0=silent");
  desc.setComment("Produce tower collection around L1ExtraJetParticle seed.");
  desc.add("caloTowerMakerHLT",aDesc);

}