/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_5_3_14/src/RecoMuon/MuonIdentification/plugins/MuonProducer.cc

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#include "RecoMuon/MuonIdentification/plugins/MuonProducer.h"

#include "RecoMuon/MuonIsolation/interface/MuPFIsoHelper.h"

#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"

#include "DataFormats/MuonReco/interface/Muon.h"
#include "DataFormats/MuonReco/interface/MuonTrackLinks.h"
#include "DataFormats/MuonReco/interface/MuonTimeExtraMap.h"
#include "DataFormats/MuonReco/interface/MuonShower.h"
#include "DataFormats/MuonReco/interface/MuonCosmicCompatibility.h"
#include "DataFormats/MuonReco/interface/MuonToMuonMap.h"

#include "DataFormats/ParticleFlowCandidate/interface/PFCandidate.h"
#include "DataFormats/ParticleFlowCandidate/interface/PFCandidateFwd.h"

#include "DataFormats/Common/interface/ValueMap.h"
#include "DataFormats/RecoCandidate/interface/IsoDepositFwd.h"
#include "DataFormats/RecoCandidate/interface/IsoDeposit.h"

#include <boost/foreach.hpp>
#define foreach BOOST_FOREACH

#ifndef dout
#define dout if(debug_) std::cout
#endif

using std::endl;

typedef std::map<reco::MuonRef, reco::Candidate::LorentzVector> MuToPFMap;

namespace reco {
  typedef edm::ValueMap<reco::MuonShower> MuonShowerMap;
}


MuonProducer::MuonProducer(const edm::ParameterSet& pSet):debug_(pSet.getUntrackedParameter<bool>("ActivateDebug",false)){
  
  setAlias(pSet.getParameter<std::string>("@module_label"));
  
  fastLabelling_ = pSet.getUntrackedParameter<bool>("FastLabelling",true);

  
  theMuonsCollectionLabel = pSet.getParameter<edm::InputTag>("InputMuons");
  thePFCandLabel = pSet.getParameter<edm::InputTag>("PFCandidates");
  
  
  // Variables to switch on-off the differnt parts
  fillSelectors_              = pSet.getParameter<bool>("FillSelectorMaps");
  fillCosmicsIdMap_           = pSet.getParameter<bool>("FillCosmicsIdMap");
  fillPFMomentum_             = pSet.getParameter<bool>("FillPFMomentumAndAssociation");
  fillPFIsolation_            = pSet.getParameter<bool>("FillPFIsolation");
  fillDetectorBasedIsolation_ = pSet.getParameter<bool>("FillDetectorBasedIsolation"); 
  fillShoweringInfo_          = pSet.getParameter<bool>("FillShoweringInfo");
  fillTimingInfo_             = pSet.getParameter<bool>("FillTimingInfo");

  produces<reco::MuonCollection>();

  if(fillTimingInfo_){
    produces<reco::MuonTimeExtraMap>("combined");
    produces<reco::MuonTimeExtraMap>("dt");
    produces<reco::MuonTimeExtraMap>("csc");
  }
  
  if (fillDetectorBasedIsolation_){
    theTrackDepositName = pSet.getParameter<edm::InputTag>("TrackIsoDeposits");
    produces<reco::IsoDepositMap>(labelOrInstance(theTrackDepositName));
    theJetDepositName = pSet.getParameter<edm::InputTag>("JetIsoDeposits");
    produces<reco::IsoDepositMap>(labelOrInstance(theJetDepositName));
    theEcalDepositName = pSet.getParameter<edm::InputTag>("EcalIsoDeposits");
    produces<reco::IsoDepositMap>(theEcalDepositName.instance());
    theHcalDepositName = pSet.getParameter<edm::InputTag>("HcalIsoDeposits");
    produces<reco::IsoDepositMap>(theHcalDepositName.instance());
    theHoDepositName = pSet.getParameter<edm::InputTag>("HoIsoDeposits");
    produces<reco::IsoDepositMap>(theHoDepositName.instance());
  }
  
  if(fillSelectors_){
    theSelectorMapNames = pSet.getParameter<InputTags>("SelectorMaps");
    
    for(InputTags::const_iterator tag = theSelectorMapNames.begin(); tag != theSelectorMapNames.end(); ++tag)
      produces<edm::ValueMap<bool> >(labelOrInstance(*tag));
  }
  
  if(fillShoweringInfo_){
    theShowerMapName = pSet.getParameter<edm::InputTag>("ShowerInfoMap");
    produces<edm::ValueMap<reco::MuonShower> >(labelOrInstance(theShowerMapName));
  }
  
  if(fillCosmicsIdMap_){
    theCosmicCompMapName = pSet.getParameter<edm::InputTag>("CosmicIdMap");
    produces<edm::ValueMap<reco::MuonCosmicCompatibility> >(labelOrInstance(theCosmicCompMapName));
    produces<edm::ValueMap<unsigned int> >(labelOrInstance(theCosmicCompMapName));
  }
  
  theMuToMuMapName = theMuonsCollectionLabel.label()+"2"+theAlias+"sMap";
  produces<edm::ValueMap<reco::MuonRef> >(theMuToMuMapName);
  
  if(fillPFIsolation_){
    edm::ParameterSet pfIsoPSet = pSet.getParameter<edm::ParameterSet>("PFIsolation");
    thePFIsoHelper = new MuPFIsoHelper(pfIsoPSet);
    edm::ParameterSet isoCfg03 = pfIsoPSet.getParameter<edm::ParameterSet>("isolationR03");
    edm::ParameterSet isoCfg04 = pfIsoPSet.getParameter<edm::ParameterSet>("isolationR04");

    theIsoPF03MapNames["chargedParticle"] = isoCfg03.getParameter<edm::InputTag>("chargedParticle");
    theIsoPF03MapNames["chargedHadron"]   = isoCfg03.getParameter<edm::InputTag>("chargedHadron");
    theIsoPF03MapNames["neutralHadron"]   = isoCfg03.getParameter<edm::InputTag>("neutralHadron");
    theIsoPF03MapNames["photon"]          = isoCfg03.getParameter<edm::InputTag>("photon");
    theIsoPF03MapNames["pu"]              = isoCfg03.getParameter<edm::InputTag>("pu");

    theIsoPF04MapNames["chargedParticle"] = isoCfg04.getParameter<edm::InputTag>("chargedParticle");
    theIsoPF04MapNames["chargedHadron"]   = isoCfg04.getParameter<edm::InputTag>("chargedHadron");
    theIsoPF04MapNames["neutralHadron"]   = isoCfg04.getParameter<edm::InputTag>("neutralHadron");
    theIsoPF04MapNames["photon"]          = isoCfg04.getParameter<edm::InputTag>("photon");
    theIsoPF04MapNames["pu"]              = isoCfg04.getParameter<edm::InputTag>("pu");
    
    for(std::map<std::string,edm::InputTag>::const_iterator map = theIsoPF03MapNames.begin(); map != theIsoPF03MapNames.end(); ++map)
      produces<edm::ValueMap<double> >(labelOrInstance(map->second));
    
    for(std::map<std::string,edm::InputTag>::const_iterator map = theIsoPF04MapNames.begin(); map != theIsoPF04MapNames.end(); ++map)
      produces<edm::ValueMap<double> >(labelOrInstance(map->second));
  }
}

MuonProducer::~MuonProducer(){ 
  if (thePFIsoHelper && fillPFIsolation_) delete thePFIsoHelper;
}


void MuonProducer::produce(edm::Event& event, const edm::EventSetup& eventSetup){

   const std::string metname = "Muon|RecoMuon|MuonIdentification|MuonProducer";

   // the muon collection, it will be loaded in the event
   std::auto_ptr<reco::MuonCollection> outputMuons(new reco::MuonCollection());
   reco::MuonRefProd outputMuonsRefProd = event.getRefBeforePut<reco::MuonCollection>();

   edm::Handle<reco::MuonCollection> inputMuons; 
   event.getByLabel(theMuonsCollectionLabel, inputMuons);
   edm::OrphanHandle<reco::MuonCollection> inputMuonsOH(inputMuons.product(), inputMuons.id());
   
   edm::Handle<reco::PFCandidateCollection> pfCandidates; 
   event.getByLabel(thePFCandLabel, pfCandidates);


   // fetch collections for PFIso
   if(fillPFIsolation_) thePFIsoHelper->beginEvent(event);

   
   // Fill timing information
   edm::Handle<reco::MuonTimeExtraMap> timeMapCmb;
   edm::Handle<reco::MuonTimeExtraMap> timeMapDT;
   edm::Handle<reco::MuonTimeExtraMap> timeMapCSC;
   
   int nMuons=inputMuons->size();

   std::vector<reco::MuonTimeExtra> dtTimeColl(nMuons);
   std::vector<reco::MuonTimeExtra> cscTimeColl(nMuons);
   std::vector<reco::MuonTimeExtra> combinedTimeColl(nMuons);

   if(fillTimingInfo_){
     event.getByLabel(theMuonsCollectionLabel.label(),"combined",timeMapCmb);
     event.getByLabel(theMuonsCollectionLabel.label(),"dt",timeMapDT);
     event.getByLabel(theMuonsCollectionLabel.label(),"csc",timeMapCSC);
   }

   std::vector<reco::IsoDeposit> trackDepColl(nMuons);
   std::vector<reco::IsoDeposit> ecalDepColl(nMuons);
   std::vector<reco::IsoDeposit> hcalDepColl(nMuons);
   std::vector<reco::IsoDeposit> hoDepColl(nMuons);
   std::vector<reco::IsoDeposit> jetDepColl(nMuons);


   edm::Handle<reco::IsoDepositMap> trackIsoDepMap;
   edm::Handle<reco::IsoDepositMap> ecalIsoDepMap;
   edm::Handle<reco::IsoDepositMap> hcalIsoDepMap;
   edm::Handle<reco::IsoDepositMap> hoIsoDepMap;
   edm::Handle<reco::IsoDepositMap> jetIsoDepMap;


   if(fillDetectorBasedIsolation_){
     event.getByLabel(theTrackDepositName,trackIsoDepMap);
     event.getByLabel(theEcalDepositName,ecalIsoDepMap);
     event.getByLabel(theHcalDepositName,hcalIsoDepMap);
     event.getByLabel(theHoDepositName,hoIsoDepMap);
     event.getByLabel(theJetDepositName,jetIsoDepMap);
   }

   std::map<std::string,edm::Handle<edm::ValueMap<double> > >  pfIso03Maps; 
   std::map<std::string,std::vector<double> > pfIso03MapVals;
   std::map<std::string,edm::Handle<edm::ValueMap<double> > >  pfIso04Maps; 
   std::map<std::string,std::vector<double> > pfIso04MapVals;

   if(fillPFIsolation_){
     for(std::map<std::string,edm::InputTag>::const_iterator map = theIsoPF03MapNames.begin(); map != theIsoPF03MapNames.end(); ++map){
       event.getByLabel(map->second,pfIso03Maps[map->first]);
       pfIso03MapVals[map->first].resize(nMuons);
     }
     for(std::map<std::string,edm::InputTag>::const_iterator map = theIsoPF04MapNames.begin(); map != theIsoPF04MapNames.end(); ++map){
       event.getByLabel(map->second,pfIso04Maps[map->first]);
       pfIso04MapVals[map->first].resize(nMuons);
     }
   }
   
   std::vector<edm::Handle<edm::ValueMap<bool> > >  selectorMaps(fillSelectors_ ? theSelectorMapNames.size() : 0); 
   std::vector<std::vector<bool> > selectorMapResults(fillSelectors_ ? theSelectorMapNames.size() : 0);
   if(fillSelectors_){
     unsigned int s=0;
     for(InputTags::const_iterator tag = theSelectorMapNames.begin(); tag != theSelectorMapNames.end(); ++tag, ++s){
       event.getByLabel(*tag,selectorMaps[s]);
       selectorMapResults[s].resize(nMuons);
     }
   }

   edm::Handle<reco::MuonShowerMap> showerInfoMap;
   if(fillShoweringInfo_) event.getByLabel(theShowerMapName,showerInfoMap);

   std::vector<reco::MuonShower> showerInfoColl(nMuons);

   edm::Handle<edm::ValueMap<unsigned int> > cosmicIdMap;
   if(fillCosmicsIdMap_) event.getByLabel(theCosmicCompMapName,cosmicIdMap);
   std::vector<unsigned int> cosmicIdColl(fillCosmicsIdMap_ ? nMuons : 0);
   
   edm::Handle<edm::ValueMap<reco::MuonCosmicCompatibility> > cosmicCompMap;
   if(fillCosmicsIdMap_) event.getByLabel(theCosmicCompMapName,cosmicCompMap);
   std::vector<reco::MuonCosmicCompatibility> cosmicCompColl(fillCosmicsIdMap_ ? nMuons : 0);


   std::vector<reco::MuonRef> muonRefColl(nMuons);



   if(inputMuons->empty()) {
     edm::OrphanHandle<reco::MuonCollection> muonHandle = event.put(outputMuons);
     
     if(fillTimingInfo_){
       fillMuonMap<reco::MuonTimeExtra>(event, muonHandle, combinedTimeColl,"combined");
       fillMuonMap<reco::MuonTimeExtra>(event, muonHandle, dtTimeColl,"dt");
       fillMuonMap<reco::MuonTimeExtra>(event, muonHandle, cscTimeColl,"csc");
     }
     
     if(fillDetectorBasedIsolation_){
       fillMuonMap<reco::IsoDeposit>(event, muonHandle, trackDepColl, labelOrInstance(theTrackDepositName));
       fillMuonMap<reco::IsoDeposit>(event, muonHandle, jetDepColl,   labelOrInstance(theJetDepositName));
       fillMuonMap<reco::IsoDeposit>(event, muonHandle, ecalDepColl,  theEcalDepositName.instance());
       fillMuonMap<reco::IsoDeposit>(event, muonHandle, hcalDepColl,  theHcalDepositName.instance());
       fillMuonMap<reco::IsoDeposit>(event, muonHandle, hoDepColl,    theHoDepositName.instance());
     }

     if(fillSelectors_){
       unsigned int s = 0;
       for(InputTags::const_iterator tag = theSelectorMapNames.begin(); 
           tag != theSelectorMapNames.end(); ++tag, ++s){
         fillMuonMap<bool>(event, muonHandle, selectorMapResults[s], labelOrInstance(*tag));
       }
     }

     if(fillShoweringInfo_) fillMuonMap<reco::MuonShower>(event, muonHandle, showerInfoColl, labelOrInstance(theShowerMapName));

     if(fillCosmicsIdMap_){
       fillMuonMap<unsigned int>(event, muonHandle, cosmicIdColl, labelOrInstance(theCosmicCompMapName));
       fillMuonMap<reco::MuonCosmicCompatibility>(event, muonHandle, cosmicCompColl, labelOrInstance(theCosmicCompMapName));
     }

     fillMuonMap<reco::MuonRef>(event,inputMuonsOH, muonRefColl, theMuToMuMapName);

     if(fillPFIsolation_){
       for(std::map<std::string,edm::InputTag>::const_iterator map = theIsoPF03MapNames.begin(); map != theIsoPF03MapNames.end(); ++map)
         fillMuonMap<double>(event, muonHandle, pfIso03MapVals[map->first], labelOrInstance(map->second));
       for(std::map<std::string,edm::InputTag>::const_iterator map = theIsoPF04MapNames.begin(); map != theIsoPF04MapNames.end(); ++map)
         fillMuonMap<double>(event, muonHandle, pfIso04MapVals[map->first], labelOrInstance(map->second));
     }

     return;
   }
   
   // FIXME: add the option to swith off the Muon-PF "info association".
   

   MuToPFMap muToPFMap;

   if(fillPFMomentum_){
     dout << "Number of PFCandidates: " << pfCandidates->size() << endl;
     foreach(const reco::PFCandidate &pfCand, *pfCandidates)
       if(abs(pfCand.pdgId()) == 13){
         muToPFMap[pfCand.muonRef()] = pfCand.p4();     
         dout << "MuonRef: " << pfCand.muonRef().id() << " " << pfCand.muonRef().key() << " PF p4: " << pfCand.p4() << endl;
       }
     dout << "Number of PFMuons: " << muToPFMap.size() << endl;
     dout << "Number of Muons in the original collection: " << inputMuons->size() << endl;
   }

   reco::MuonRef::key_type muIndex = 0;
   unsigned int i = 0;
   foreach(const reco::Muon &inMuon, *inputMuons){
     
     reco::MuonRef muRef(inputMuons, muIndex);
     muonRefColl[i] = reco::MuonRef(outputMuonsRefProd, muIndex++);

     // Copy the muon 
     reco::Muon outMuon = inMuon;
    
     if(fillPFMomentum_){ 
     // search for the corresponding pf candidate
       MuToPFMap::iterator iter =  muToPFMap.find(muRef);
       if(iter != muToPFMap.end()){
         outMuon.setPFP4(iter->second);
         muToPFMap.erase(iter);
         dout << "MuonRef: " << muRef.id() << " " << muRef.key() 
              << " Is it PF? " << outMuon.isPFMuon() 
              << " PF p4: " << outMuon.pfP4() << endl;
       }
       
       
       dout << "MuonRef: " << muRef.id() << " " << muRef.key() 
            << " Is it PF? " << outMuon.isPFMuon() << endl;
       
       dout << "GLB "  << outMuon.isGlobalMuon()
            << " TM "  << outMuon.isTrackerMuon()
            << " STA " << outMuon.isStandAloneMuon() 
            << " p4 "  << outMuon.p4() << endl;
     }

     // Add PF isolation info
     if(fillPFIsolation_){
       thePFIsoHelper->embedPFIsolation(outMuon,muRef);
       for(std::map<std::string,edm::InputTag>::const_iterator map = theIsoPF03MapNames.begin(); map != theIsoPF03MapNames.end(); ++map)
         pfIso03MapVals[map->first][i] = (*pfIso03Maps[map->first])[muRef];
       for(std::map<std::string,edm::InputTag>::const_iterator map = theIsoPF04MapNames.begin(); map != theIsoPF04MapNames.end(); ++map)
         pfIso04MapVals[map->first][i] = (*pfIso04Maps[map->first])[muRef];
     }

     
     // Fill timing information   
     if(fillTimingInfo_){
       combinedTimeColl[i] = (*timeMapCmb)[muRef];
       dtTimeColl[i] = (*timeMapDT)[muRef];
       cscTimeColl[i] = (*timeMapCSC)[muRef];
     }
     
     if(fillDetectorBasedIsolation_){
       trackDepColl[i] = (*trackIsoDepMap)[muRef];
       ecalDepColl[i]  = (*ecalIsoDepMap)[muRef];
       hcalDepColl[i]  = (*hcalIsoDepMap)[muRef];
       hoDepColl[i]    = (*hoIsoDepMap)[muRef];
       jetDepColl[i]   = (*jetIsoDepMap)[muRef];;
     }
     
     if(fillSelectors_){
       unsigned int s = 0;
       for(InputTags::const_iterator tag = theSelectorMapNames.begin(); 
           tag != theSelectorMapNames.end(); ++tag, ++s)
         selectorMapResults[s][i] = (*selectorMaps[s])[muRef];
     }

     // Fill the Showering Info
     if(fillShoweringInfo_) showerInfoColl[i] = (*showerInfoMap)[muRef];

     if(fillCosmicsIdMap_){
       cosmicIdColl[i] = (*cosmicIdMap)[muRef];
       cosmicCompColl[i] = (*cosmicCompMap)[muRef];
     }

     outputMuons->push_back(outMuon); 
     ++i;
   }

   dout << "Number of Muons in the new muon collection: " << outputMuons->size() << endl;
   edm::OrphanHandle<reco::MuonCollection> muonHandle = event.put(outputMuons);

   if(fillTimingInfo_){
     fillMuonMap<reco::MuonTimeExtra>(event, muonHandle, combinedTimeColl,"combined");
     fillMuonMap<reco::MuonTimeExtra>(event, muonHandle, dtTimeColl,"dt");
     fillMuonMap<reco::MuonTimeExtra>(event, muonHandle, cscTimeColl,"csc");
   }

   if(fillDetectorBasedIsolation_){
     fillMuonMap<reco::IsoDeposit>(event, muonHandle, trackDepColl, labelOrInstance(theTrackDepositName));
     fillMuonMap<reco::IsoDeposit>(event, muonHandle, jetDepColl,   labelOrInstance(theJetDepositName));
     fillMuonMap<reco::IsoDeposit>(event, muonHandle, ecalDepColl,  theEcalDepositName.instance());
     fillMuonMap<reco::IsoDeposit>(event, muonHandle, hcalDepColl,  theHcalDepositName.instance());
     fillMuonMap<reco::IsoDeposit>(event, muonHandle, hoDepColl,    theHoDepositName.instance());
   }
   
   if(fillPFIsolation_){
     for(std::map<std::string,edm::InputTag>::const_iterator map = theIsoPF03MapNames.begin(); map != theIsoPF03MapNames.end(); ++map)
       fillMuonMap<double>(event, muonHandle, pfIso03MapVals[map->first], labelOrInstance(map->second));
     for(std::map<std::string,edm::InputTag>::const_iterator map = theIsoPF04MapNames.begin(); map != theIsoPF04MapNames.end(); ++map)
       fillMuonMap<double>(event, muonHandle, pfIso04MapVals[map->first], labelOrInstance(map->second));
   }   

   if(fillSelectors_){
     unsigned int s = 0;
     for(InputTags::const_iterator tag = theSelectorMapNames.begin(); 
         tag != theSelectorMapNames.end(); ++tag, ++s)
       fillMuonMap<bool>(event, muonHandle, selectorMapResults[s], labelOrInstance(*tag));
   }

   if(fillShoweringInfo_) fillMuonMap<reco::MuonShower>(event, muonHandle, showerInfoColl, labelOrInstance(theShowerMapName));

   if(fillCosmicsIdMap_){
     fillMuonMap<unsigned int>(event, muonHandle, cosmicIdColl, labelOrInstance(theCosmicCompMapName));
     fillMuonMap<reco::MuonCosmicCompatibility>(event, muonHandle, cosmicCompColl, labelOrInstance(theCosmicCompMapName));
   }

   fillMuonMap<reco::MuonRef>(event,inputMuonsOH, muonRefColl, theMuToMuMapName);
   


}

template<typename TYPE>
void MuonProducer::fillMuonMap(edm::Event& event,
                               const edm::OrphanHandle<reco::MuonCollection>& muonHandle,
                               const std::vector<TYPE>& muonExtra,
                               const std::string& label){
 
  typedef typename edm::ValueMap<TYPE>::Filler FILLER; 

  std::auto_ptr<edm::ValueMap<TYPE> > muonMap(new edm::ValueMap<TYPE>());
  if(!muonExtra.empty()){
    FILLER filler(*muonMap);
    filler.insert(muonHandle, muonExtra.begin(), muonExtra.end());
    filler.fill();
  }
  event.put(muonMap,label);
}


std::string MuonProducer::labelOrInstance(const edm::InputTag &input) const{
  if(fastLabelling_) return input.label();

  return input.label() != theMuonsCollectionLabel.label() ? input.label() : input.instance();
}