#include <RecoLocalCalo/CaloTowersMerger/src/CaloTowersMerger.cc>

Inheritance diagram for CaloTowersMerger:

Public Member Functions
	CaloTowersMerger (const edm::ParameterSet &)

CaloTower	mergedTower (const CaloTower &t1, const CaloTower &t2)

	~CaloTowersMerger () override

Public Member Functions inherited from edm::stream::EDProducer<>
	EDProducer ()=default

bool	hasAbilityToProduceInBeginLumis () const final

bool	hasAbilityToProduceInBeginRuns () const final

bool	hasAbilityToProduceInEndLumis () const final

bool	hasAbilityToProduceInEndRuns () const final

Private Member Functions
void	produce (edm::Event &, const edm::EventSetup &) override

Private Attributes
edm::InputTag	extraTowerTag

edm::InputTag	regularTowerTag

edm::EDGetTokenT< CaloTowerCollection >	tok_ext_

edm::EDGetTokenT< CaloTowerCollection >	tok_reg_

Additional Inherited Members
Public Types inherited from edm::stream::EDProducer<>
typedef CacheContexts< T... >	CacheTypes

typedef CacheTypes::GlobalCache	GlobalCache

typedef AbilityChecker< T... >	HasAbility

typedef CacheTypes::LuminosityBlockCache	LuminosityBlockCache

typedef LuminosityBlockContextT< LuminosityBlockCache, RunCache, GlobalCache >	LuminosityBlockContext

typedef CacheTypes::LuminosityBlockSummaryCache	LuminosityBlockSummaryCache

typedef CacheTypes::RunCache	RunCache

typedef RunContextT< RunCache, GlobalCache >	RunContext

typedef CacheTypes::RunSummaryCache	RunSummaryCache

Detailed Description

Description: [one line class summary]

Implementation: [Notes on implementation]

Definition at line 44 of file CaloTowersMerger.cc.

Constructor & Destructor Documentation

◆ CaloTowersMerger()

CaloTowersMerger::CaloTowersMerger ( const edm::ParameterSet & iConfig )

explicit

Definition at line 72 of file CaloTowersMerger.cc.

                                                                  {
   regularTowerTag = iConfig.getParameter<edm::InputTag>("regularTowerTag");
   extraTowerTag = iConfig.getParameter<edm::InputTag>("extraTowerTag");
  
   // register for data access
   tok_reg_ = consumes<CaloTowerCollection>(regularTowerTag);
   tok_ext_ = consumes<CaloTowerCollection>(extraTowerTag);
  
   //register your products
   produces<CaloTowerCollection>();
 }

References extraTowerTag, edm::ParameterSet::getParameter(), regularTowerTag, tok_ext_, and tok_reg_.

◆ ~CaloTowersMerger()

CaloTowersMerger::~CaloTowersMerger ( )

override

Definition at line 84 of file CaloTowersMerger.cc.

                                     {
   // do anything here that needs to be done at desctruction time
   // (e.g. close files, deallocate resources etc.)
 }

Member Function Documentation

◆ mergedTower()

CaloTower CaloTowersMerger::mergedTower	(	const CaloTower &	t1,
		const CaloTower &	t2
	)

Definition at line 161 of file CaloTowersMerger.cc.

                                                                                 {
   double newOuterE = 0;
  
   // HO energies are always saved (even if useHO=false)
   // make sure there is no double counting
   // crude test if one has HO energy and the other not (possibly due to bad hit cleanup)
   // However: for |iEta|>15 E_outer has different meening:
   // it holds either the energy in the outer depths in HCAL, etc
  
   if (rt.ietaAbs() < 16 && (fabs(rt.outerEnergy() - et.outerEnergy()) < 0.00001)) {
     // there is no differnce in the store HO energies
     newOuterE = rt.outerEnergy();
   } else {
     newOuterE = rt.outerEnergy() + et.outerEnergy();
   }
  
   bool rt_hasEcalConstit = false;
   bool et_hasEcalConstit = false;
  
   bool rt_hasHcalConstit = false;
   bool et_hasHcalConstit = false;
  
   // check if there are HCAL/ECAL constituents in the towers
  
   std::vector<DetId>::const_iterator rc_begin = rt.constituents().begin();
   std::vector<DetId>::const_iterator rc_end = rt.constituents().end();
   std::vector<DetId>::const_iterator rc_it;
  
   for (rc_it = rc_begin; rc_it != rc_end; ++rc_it) {
     if (rc_it->det() == DetId::Hcal)
       rt_hasHcalConstit = true;
     break;
   }
   for (rc_it = rc_begin; rc_it != rc_end; ++rc_it) {
     if (rc_it->det() == DetId::Ecal)
       rt_hasEcalConstit = true;
     break;
   }
  
   std::vector<DetId>::const_iterator ec_begin = et.constituents().begin();
   std::vector<DetId>::const_iterator ec_end = et.constituents().end();
   std::vector<DetId>::const_iterator ec_it;
  
   for (ec_it = ec_begin; ec_it != ec_end; ++ec_it) {
     if (ec_it->det() == DetId::Hcal)
       et_hasHcalConstit = true;
     break;
   }
   for (ec_it = ec_begin; ec_it != ec_end; ++ec_it) {
     if (ec_it->det() == DetId::Ecal)
       et_hasEcalConstit = true;
     break;
   }
  
   std::vector<DetId> combinedConstituents = rt.constituents();
   for (ec_it = ec_begin; ec_it != ec_end; ++ec_it) {
     // if properly resconstructed, the only possible overlap should be for HO hits that
     // are always listed as constituents if above thereshold (old JetMET request)
     if (std::find(combinedConstituents.begin(), combinedConstituents.end(), *ec_it) == combinedConstituents.end())
       combinedConstituents.push_back(*ec_it);
   }
  
   GlobalPoint newEmPosition(0.0, 0.0, 0.0);
  
   // The following assumes the current default
   // momentum reconstruction method (1) and
   // accepted rechits with some threshod >0
  
   if (rt_hasEcalConstit && et_hasEcalConstit) {
     if (rt.emEnergy() > 0 && et.emEnergy() > 0) {
       double sumEmE = rt.emEnergy() + et.emEnergy();
  
       double x = rt.emEnergy() * rt.emPosition().x() + et.emEnergy() * et.emPosition().x();
       double y = rt.emEnergy() * rt.emPosition().y() + et.emEnergy() * et.emPosition().y();
       double z = rt.emEnergy() * rt.emPosition().z() + et.emEnergy() * et.emPosition().z();
  
       GlobalPoint weightedEmdPosition(x / sumEmE, y / sumEmE, z / sumEmE);
       newEmPosition = weightedEmdPosition;
     }
  
   } else if (rt_hasEcalConstit && !et_hasEcalConstit) {
     newEmPosition = rt.emPosition();
   } else if (!rt_hasEcalConstit && et_hasEcalConstit) {
     newEmPosition = et.emPosition();
   }
  
   GlobalPoint newHadPosition(0.0, 0.0, 0.0);
   // had positions are the same if there is at least one constituent
   if (rt_hasHcalConstit) {
     newHadPosition = rt.hadPosition();
   } else if (et_hasHcalConstit) {
     newHadPosition = et.hadPosition();
   }
  
   // MAke the new tower and set all values
  
   CaloTower mergedTower(rt.id(),
                         rt.emEnergy() + et.emEnergy(),
                         rt.hadEnergy() + et.hadEnergy(),
                         newOuterE,
                         -1,
                         -1,
                         rt.p4() + et.p4(),
                         newEmPosition,
                         newHadPosition);
  
   mergedTower.addConstituents(combinedConstituents);
  
   (rt.hottestCellE() > et.hottestCellE()) ? mergedTower.setHottestCellE(rt.hottestCellE())
                                           : mergedTower.setHottestCellE(et.hottestCellE());
  
   unsigned int numBadHcalChan = rt.numBadHcalCells() - et.numProblematicHcalCells() - rt.numRecoveredHcalCells();
   unsigned int numBadEcalChan = rt.numBadEcalCells() - et.numProblematicEcalCells() - rt.numRecoveredEcalCells();
  
   unsigned int numProbHcalChan = rt.numProblematicHcalCells() + et.numProblematicHcalCells();
   unsigned int numProbEcalChan = rt.numProblematicEcalCells() + et.numProblematicEcalCells();
  
   unsigned int numRecHcalChan = rt.numRecoveredHcalCells() + et.numRecoveredHcalCells();
   unsigned int numRecEcalChan = rt.numRecoveredEcalCells() + et.numRecoveredEcalCells();
  
   mergedTower.setCaloTowerStatus(
       numBadHcalChan, numBadEcalChan, numRecHcalChan, numRecEcalChan, numProbHcalChan, numProbEcalChan);
  
   // use timing from the good tower only (for now, in default reco we use information from good hits only)
   // time is saved as integer but returned as float in (ns)
   mergedTower.setEcalTime(int(rt.ecalTime() * 100.0 + 0.5));
   mergedTower.setHcalTime(int(rt.hcalTime() * 100.0 + 0.5));
  
   return mergedTower;
 }

References CaloTower::addConstituents(), DetId::Ecal, EgHLTOffHistBins_cfi::et, spr::find(), DetId::Hcal, hcal_runs::rt, CaloTower::setCaloTowerStatus(), CaloTower::setEcalTime(), CaloTower::setHcalTime(), CaloTower::setHottestCellE(), x, y, and z.

Referenced by produce().

◆ produce()

void CaloTowersMerger::produce	(	edm::Event &	iEvent,
		const edm::EventSetup &	iSetup
	)

overrideprivate

Definition at line 94 of file CaloTowersMerger.cc.

                                                                             {
   edm::Handle<CaloTowerCollection> regTower, extraTower;
  
   iEvent.getByToken(tok_reg_, regTower);
   iEvent.getByToken(tok_ext_, extraTower);
  
   if (!regTower.isValid() && !extraTower.isValid()) {
     edm::LogError("CaloTowersMerger") << "both input tag:" << regularTowerTag << " and " << extraTowerTag
                                       << " are invalid. empty merged collection";
     iEvent.put(std::make_unique<CaloTowerCollection>());
     return;
   } else if (!regTower.isValid() || !extraTower.isValid()) {
     if (!regTower.isValid() && extraTower.isValid())
       regTower = extraTower;
     iEvent.put(std::make_unique<CaloTowerCollection>(*regTower));
     return;
   } else {
     //both valid input collections: merging
     auto output = std::make_unique<CaloTowerCollection>();
     output->reserve(regTower->size() + extraTower->size());
  
     CaloTowerCollection::const_iterator rt_begin = regTower->begin();
     CaloTowerCollection::const_iterator rt_end = regTower->end();
     CaloTowerCollection::const_iterator rt_it = rt_begin;
  
     //vector of overlapping towers
     std::vector<CaloTowerCollection::const_iterator> overlappingTowers;
     overlappingTowers.reserve(extraTower->size());
  
     for (; rt_it != rt_end; ++rt_it) {
       CaloTowerCollection::const_iterator et_it = extraTower->find(rt_it->id());
       if (et_it != extraTower->end()) {
         //need to merge the components
         //FIXME
  
         //one needs to merge t1 and t2 into mergedTower
         //end FIXME
         CaloTower mt = mergedTower(*rt_it, *et_it);
  
         output->push_back(mt);
         overlappingTowers.push_back(et_it);
  
       } else {
         //just copy the regular tower over
         output->push_back(*rt_it);
       }
     }
     CaloTowerCollection::const_iterator et_begin = extraTower->begin();
     CaloTowerCollection::const_iterator et_end = extraTower->end();
     CaloTowerCollection::const_iterator et_it = et_begin;
     for (; et_it != et_end; ++et_it) {
       if (std::find(overlappingTowers.begin(), overlappingTowers.end(), et_it) == overlappingTowers.end())
         //non overlapping tower
         //copy the extra tower over
         output->push_back(*et_it);
     }
     iEvent.put(std::move(output));
   }
 }