HeavyFlavorValidation.cc

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// Original Author:  Zoltan Gecse

#include <memory>
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/EDAnalyzer.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "FWCore/ServiceRegistry/interface/Service.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Utilities/interface/InputTag.h"
#include "FWCore/Common/interface/TriggerNames.h"

#include "DataFormats/Common/interface/RefToBase.h"
#include "DataFormats/TrackReco/interface/Track.h"
#include "DataFormats/RecoCandidate/interface/RecoChargedCandidate.h"
#include "DataFormats/RecoCandidate/interface/RecoChargedCandidateFwd.h"
#include "DataFormats/L1Trigger/interface/L1MuonParticle.h"
#include "DataFormats/L1Trigger/interface/L1MuonParticleFwd.h"
#include "DataFormats/Candidate/interface/Candidate.h"
#include "DataFormats/HepMCCandidate/interface/GenParticle.h"
#include "DataFormats/MuonReco/interface/MuonFwd.h"
#include "DataFormats/MuonReco/interface/Muon.h"
#include "DataFormats/Math/interface/deltaR.h"
#include "DataFormats/Common/interface/TriggerResults.h"
#include "DataFormats/Candidate/interface/Particle.h"
#include "DataFormats/HLTReco/interface/TriggerEventWithRefs.h"
#include "DataFormats/HLTReco/interface/TriggerEvent.h"

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

#include "DQMServices/Core/interface/DQMStore.h"
#include "DQMServices/Core/interface/MonitorElement.h"
#include <DQMServices/Core/interface/DQMEDAnalyzer.h>

#include "CommonTools/Utils/interface/PtComparator.h"

#include "TLorentzVector.h"

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

class HeavyFlavorValidation : public DQMEDAnalyzer {
  public:
    explicit HeavyFlavorValidation(const edm::ParameterSet&);
    ~HeavyFlavorValidation();
  protected:
    void dqmBeginRun(const edm::Run&, const edm::EventSetup&);
    void bookHistograms(DQMStore::IBooker &, edm::Run const &, edm::EventSetup const &) override;
    virtual void analyze(const edm::Event&, const edm::EventSetup&) override;
  private:
    int getMotherId( const Candidate * p );
    void match( MonitorElement * me, vector<LeafCandidate> & from, vector<LeafCandidate> & to, double deltaRMatchingCut, vector<int> & map );
    void myBook2D(DQMStore::IBooker & ibooker, TString name, vector<double> &xBins, TString xLabel, vector<double> &yBins, TString yLabel, TString title);
    void myBook2D(DQMStore::IBooker & ibooker, TString name, vector<double> &xBins, TString xLabel, vector<double> &yBins, TString yLabel){
      myBook2D(ibooker, name, xBins, xLabel, yBins, yLabel, name);
    }
    void myBookProfile2D(DQMStore::IBooker & ibooker, TString name, vector<double> &xBins, TString xLabel, vector<double> &yBins, TString yLabel, TString title);
    void myBookProfile2D(DQMStore::IBooker & ibooker, TString name, vector<double> &xBins, TString xLabel, vector<double> &yBins, TString yLabel){
      myBookProfile2D(ibooker, name, xBins, xLabel, yBins, yLabel, name);
    }
    void myBook1D(DQMStore::IBooker & ibooker, TString name, vector<double> &xBins, TString label, TString title );
    void myBook1D(DQMStore::IBooker & ibooker, TString name, vector<double> &xBins, TString label ){
      myBook1D(ibooker, name, xBins, label, name );
    }
    string dqmFolder;
    string triggerProcessName;
    string triggerPathName;

    EDGetTokenT<TriggerEventWithRefs>  triggerSummaryRAWTag;
    EDGetTokenT<TriggerEvent>          triggerSummaryAODTag;
    InputTag                           triggerResultsTag;
    EDGetTokenT<TriggerResults>        triggerResultsToken;
    InputTag                           recoMuonsTag;
    EDGetTokenT<MuonCollection>        recoMuonsToken;
    InputTag                           genParticlesTag;
    EDGetTokenT<GenParticleCollection> genParticlesToken;

    vector<int> motherIDs;
    double genGlobDeltaRMatchingCut;
    double globL1DeltaRMatchingCut;
    double globL2DeltaRMatchingCut;
    double globL3DeltaRMatchingCut;
    vector<double> deltaEtaBins;
    vector<double> deltaPhiBins;
    vector<double> muonPtBins;
    vector<double> muonEtaBins;
    vector<double> muonPhiBins;
    vector<double> dimuonPtBins;
    vector<double> dimuonEtaBins;
    vector<double> dimuonDRBins;
    DQMStore* dqmStore;
    map<TString, MonitorElement *> ME;
    vector<pair<string,int> > filterNamesLevels;
    const double muonMass;
};

HeavyFlavorValidation::HeavyFlavorValidation(const ParameterSet& pset):
//get parameters
  dqmFolder(pset.getUntrackedParameter<string>("DQMFolder")),
  triggerProcessName(pset.getUntrackedParameter<string>("TriggerProcessName")),
  triggerPathName(pset.getUntrackedParameter<string>("TriggerPathName")),
  motherIDs(pset.getUntrackedParameter<vector<int> >("MotherIDs")),
  genGlobDeltaRMatchingCut(pset.getUntrackedParameter<double>("GenGlobDeltaRMatchingCut")),
  globL1DeltaRMatchingCut(pset.getUntrackedParameter<double>("GlobL1DeltaRMatchingCut")),
  globL2DeltaRMatchingCut(pset.getUntrackedParameter<double>("GlobL2DeltaRMatchingCut")),
  globL3DeltaRMatchingCut(pset.getUntrackedParameter<double>("GlobL3DeltaRMatchingCut")),
  deltaEtaBins(pset.getUntrackedParameter<vector<double> >("DeltaEtaBins")),
  deltaPhiBins(pset.getUntrackedParameter<vector<double> >("DeltaPhiBins")),
  muonPtBins(pset.getUntrackedParameter<vector<double> >("MuonPtBins")),
  muonEtaBins(pset.getUntrackedParameter<vector<double> >("MuonEtaBins")),
  muonPhiBins(pset.getUntrackedParameter<vector<double> >("MuonPhiBins")),
  dimuonPtBins(pset.getUntrackedParameter<vector<double> >("DimuonPtBins")),
  dimuonEtaBins(pset.getUntrackedParameter<vector<double> >("DimuonEtaBins")),
  dimuonDRBins(pset.getUntrackedParameter<vector<double> >("DimuonDRBins")),
  muonMass(0.106)
{
  triggerSummaryRAWTag = consumes<TriggerEventWithRefs>(InputTag( pset.getUntrackedParameter<string>("TriggerSummaryRAW"), "", triggerProcessName));
  triggerSummaryAODTag = consumes<TriggerEvent>(InputTag( pset.getUntrackedParameter<string>("TriggerSummaryAOD"), "", triggerProcessName));
  triggerResultsTag = InputTag( pset.getUntrackedParameter<string>("TriggerResults"), "", triggerProcessName);
  triggerResultsToken = consumes<TriggerResults>(triggerResultsTag);
  recoMuonsTag = pset.getParameter<InputTag>("RecoMuons");
  recoMuonsToken = consumes<MuonCollection>(recoMuonsTag);
  genParticlesTag = pset.getParameter<InputTag>("GenParticles");
  genParticlesToken = consumes<GenParticleCollection>(genParticlesTag);
}

void HeavyFlavorValidation::dqmBeginRun(const edm::Run& iRun, const edm::EventSetup & iSetup ) {
    //discover HLT configuration
    HLTConfigProvider hltConfig;
    bool isChanged;
    if(hltConfig.init(iRun, iSetup, triggerProcessName, isChanged)){
        LogDebug("HLTriggerOfflineHeavyFlavor") << "Successfully initialized HLTConfigProvider with process name: "<<triggerProcessName<<endl;
    }else{
        LogWarning("HLTriggerOfflineHeavyFlavor") << "Could not initialize HLTConfigProvider with process name: "<<triggerProcessName<<endl;
        return;
    }
    stringstream os;
    vector<string> triggerNames = hltConfig.triggerNames();
    for( size_t i = 0; i < triggerNames.size(); i++) {
        TString triggerName = triggerNames[i];
        if (triggerName.Contains(triggerPathName)){ 
            vector<string> moduleNames = hltConfig.moduleLabels( triggerNames[i] );
            for( size_t j = 0; j < moduleNames.size(); j++) {
                TString name = moduleNames[j];
                if(name.Contains("Filter")){ 
                    int level = 0;
                    if(name.Contains("L1"))
                        level = 1;
                    if(name.Contains("L2"))
                        level = 2;
                    if(name.Contains("L3"))
                        level = 3;
                    if(name.Contains("mumuFilter") || name.Contains("DiMuon") || name.Contains("MuonL3Filtered") || name.Contains("TrackMassFiltered"))
                        level = 4;
                    if(name.Contains("Vertex") || name.Contains("Dz"))
                        level = 5;
                    filterNamesLevels.push_back( pair<string,int>(moduleNames[j],level) );
                    os<<" "<<moduleNames[j];
                }
            }
            break;
        }
    }
    if(filterNamesLevels.size()==0){
        LogDebug("HLTriggerOfflineHeavyFlavor")<<"Bad Trigger Path: "<<triggerPathName<<endl;
        return;
    }else{
        LogDebug("HLTriggerOfflineHeavyFlavor")<<"Trigger Path: "<<triggerPathName<<" has filters:"<<os.str();
    }  
}



void HeavyFlavorValidation::bookHistograms(DQMStore::IBooker & ibooker,
                                edm::Run const & iRun,
                                edm::EventSetup const & iSetup) {
          ibooker.cd();
          ibooker.setCurrentFolder((dqmFolder+"/")+triggerProcessName+"/"+triggerPathName);

    // create Monitor Elements
    // Eta Pt Single  
      myBook2D(ibooker, "genMuon_genEtaPt", muonEtaBins, "#mu eta", muonPtBins, " #mu pT (GeV)");
      myBook2D(ibooker, "globMuon_genEtaPt", muonEtaBins, "#mu eta", muonPtBins, " #mu pT (GeV)");
      myBook2D(ibooker, "globMuon_recoEtaPt", muonEtaBins, "#mu eta", muonPtBins, " #mu pT (GeV)");

      for(size_t i=0; i<filterNamesLevels.size(); i++){
        myBook2D(ibooker, TString::Format("filt%dMuon_recoEtaPt",int(i+1)), muonEtaBins, "#mu eta", muonPtBins, " #mu pT (GeV)", filterNamesLevels[i].first);
      }
      myBook2D(ibooker, "pathMuon_recoEtaPt", muonEtaBins, "#mu eta", muonPtBins, " #mu pT (GeV)", triggerPathName);
      myBook2D(ibooker, "resultMuon_recoEtaPt", muonEtaBins, "#mu eta", muonPtBins, " #mu pT (GeV)");
    // Eta Pt Single Resolution
      myBookProfile2D(ibooker, "resGlobGen_genEtaPt", muonEtaBins, "#mu eta", muonPtBins, " #mu pT (GeV)");
      for(size_t i=0; i<filterNamesLevels.size(); i++){
        myBookProfile2D(ibooker, TString::Format("resFilt%dGlob_recoEtaPt",int(i+1)), muonEtaBins, "#mu eta", muonPtBins, " #mu pT (GeV)", filterNamesLevels[i].first);
      }
      myBookProfile2D(ibooker, "resPathGlob_recoEtaPt", muonEtaBins, "#mu eta", muonPtBins, " #mu pT (GeV)", triggerPathName);
    // Eta Pt Double  
      myBook2D(ibooker, "genDimuon_genEtaPt", dimuonEtaBins, "#mu#mu eta", dimuonPtBins, " #mu#mu pT (GeV)");
      myBook2D(ibooker, "globDimuon_genEtaPt", dimuonEtaBins, "#mu#mu eta", dimuonPtBins, " #mu#mu pT (GeV)");
      myBook2D(ibooker, "globDimuon_recoEtaPt", dimuonEtaBins, "#mu#mu eta", dimuonPtBins, " #mu#mu pT (GeV)");
      for(size_t i=0; i<filterNamesLevels.size(); i++){
        myBook2D(ibooker, TString::Format("filt%dDimuon_recoEtaPt",int(i+1)), dimuonEtaBins, "#mu#mu eta", dimuonPtBins, " #mu#mu pT (GeV)", filterNamesLevels[i].first);
      }  
      myBook2D(ibooker, "pathDimuon_recoEtaPt", dimuonEtaBins, "#mu#mu eta", dimuonPtBins, " #mu#mu pT (GeV)", triggerPathName);
      myBook2D(ibooker, "resultDimuon_recoEtaPt", dimuonEtaBins, "#mu#mu eta", dimuonPtBins, " #mu#mu pT (GeV)");
      for(size_t i=0; i<filterNamesLevels.size(); i++){
        myBook2D(ibooker, TString::Format("diFilt%dDimuon_recoEtaPt",int(i+1)), dimuonEtaBins, "#mu#mu eta", dimuonPtBins, " #mu#mu pT (GeV)", filterNamesLevels[i].first);
      }  
      myBook2D(ibooker, "diPathDimuon_recoEtaPt", dimuonEtaBins, "#mu#mu eta", dimuonPtBins, " #mu#mu pT (GeV)", triggerPathName);
    // Eta Phi Single
      myBook2D(ibooker, "genMuon_genEtaPhi", muonEtaBins, "#mu eta", muonPhiBins, "#mu phi");
      myBook2D(ibooker, "globMuon_genEtaPhi", muonEtaBins, "#mu eta", muonPhiBins, "#mu phi");
      myBook2D(ibooker, "globMuon_recoEtaPhi", muonEtaBins, "#mu eta", muonPhiBins, "#mu phi");
      for(size_t i=0; i<filterNamesLevels.size(); i++){
        myBook2D(ibooker, TString::Format("filt%dMuon_recoEtaPhi",int(i+1)), muonEtaBins, "#mu eta", muonPhiBins, "#mu phi", filterNamesLevels[i].first);
      }
      myBook2D(ibooker, "pathMuon_recoEtaPhi", muonEtaBins, "#mu eta", muonPhiBins, "#mu phi", triggerPathName);
      myBook2D(ibooker, "resultMuon_recoEtaPhi", muonEtaBins, "#mu eta", muonPhiBins, "#mu phi");
    // Rap Pt Double
      myBook2D(ibooker, "genDimuon_genRapPt", dimuonEtaBins, "#mu#mu rapidity", dimuonPtBins, " #mu#mu pT (GeV)");
      myBook2D(ibooker, "globDimuon_genRapPt", dimuonEtaBins, "#mu#mu rapidity", dimuonPtBins, " #mu#mu pT (GeV)");
      myBook2D(ibooker, "globDimuon_recoRapPt", dimuonEtaBins, "#mu#mu rapidity", dimuonPtBins, " #mu#mu pT (GeV)");
      for(size_t i=0; i<filterNamesLevels.size(); i++){
        myBook2D(ibooker, TString::Format("filt%dDimuon_recoRapPt",int(i+1)), dimuonEtaBins, "#mu#mu rapidity", dimuonPtBins, " #mu#mu pT (GeV)", filterNamesLevels[i].first);
      }  
      myBook2D(ibooker, "pathDimuon_recoRapPt", dimuonEtaBins, "#mu#mu rapidity", dimuonPtBins, " #mu#mu pT (GeV)", triggerPathName);
      myBook2D(ibooker, "resultDimuon_recoRapPt", dimuonEtaBins, "#mu#mu rapidity", dimuonPtBins, " #mu#mu pT (GeV)");
      for(size_t i=0; i<filterNamesLevels.size(); i++){
        myBook2D(ibooker, TString::Format("diFilt%dDimuon_recoRapPt",int(i+1)), dimuonEtaBins, "#mu#mu rapidity", dimuonPtBins, " #mu#mu pT (GeV)", filterNamesLevels[i].first);
      }  
      myBook2D(ibooker, "diPathDimuon_recoRapPt", dimuonEtaBins, "#mu#mu rapidity", dimuonPtBins, " #mu#mu pT (GeV)", triggerPathName);
    // Pt DR Double  
      myBook2D(ibooker, "genDimuon_genPtDR", dimuonPtBins, " #mu#mu pT (GeV)", dimuonDRBins, "#mu#mu #Delta R at IP");
      myBook2D(ibooker, "globDimuon_genPtDR", dimuonPtBins, " #mu#mu pT (GeV)", dimuonDRBins, "#mu#mu #Delta R at IP");
      myBook2D(ibooker, "globDimuon_recoPtDR", dimuonPtBins, " #mu#mu pT (GeV)", dimuonDRBins, "#mu#mu #Delta R at IP");
      for(size_t i=0; i<filterNamesLevels.size(); i++){
        myBook2D(ibooker, TString::Format("filt%dDimuon_recoPtDR",int(i+1)), dimuonPtBins, " #mu#mu pT (GeV)", dimuonDRBins, "#mu#mu #Delta R at IP", filterNamesLevels[i].first);
      }
      myBook2D(ibooker, "pathDimuon_recoPtDR", dimuonPtBins, " #mu#mu pT (GeV)", dimuonDRBins, "#mu#mu #Delta R at IP", triggerPathName);
      for(size_t i=0; i<filterNamesLevels.size(); i++){
        myBook2D(ibooker, TString::Format("diFilt%dDimuon_recoPtDR",int(i+1)), dimuonPtBins, " #mu#mu pT (GeV)", dimuonDRBins, "#mu#mu #Delta R at IP", filterNamesLevels[i].first);
      }  
      myBook2D(ibooker, "diPathDimuon_recoPtDR", dimuonPtBins, " #mu#mu pT (GeV)", dimuonDRBins, "#mu#mu #Delta R at IP", triggerPathName);
      myBook2D(ibooker, "resultDimuon_recoPtDR", dimuonPtBins, " #mu#mu pT (GeV)", dimuonDRBins, "#mu#mu #Delta R at IP");
    // Pt DRpos Double  
      myBook2D(ibooker, "globDimuon_recoPtDRpos", dimuonPtBins, " #mu#mu pT (GeV)", dimuonDRBins, "#mu#mu #Delta R in MS");
      for(size_t i=0; i<filterNamesLevels.size(); i++){
        myBook2D(ibooker, TString::Format("filt%dDimuon_recoPtDRpos",int(i+1)), dimuonPtBins, " #mu#mu pT (GeV)", dimuonDRBins, "#mu#mu #Delta R in MS", filterNamesLevels[i].first);
      }
      myBook2D(ibooker, "pathDimuon_recoPtDRpos", dimuonPtBins, " #mu#mu pT (GeV)", dimuonDRBins, "#mu#mu #Delta R in MS", triggerPathName);
      for(size_t i=0; i<filterNamesLevels.size(); i++){
        myBook2D(ibooker, TString::Format("diFilt%dDimuon_recoPtDRpos",int(i+1)), dimuonPtBins, " #mu#mu pT (GeV)", dimuonDRBins, "#mu#mu #Delta R in MS", filterNamesLevels[i].first);
      }  
      myBook2D(ibooker, "diPathDimuon_recoPtDRpos", dimuonPtBins, " #mu#mu pT (GeV)", dimuonDRBins, "#mu#mu #Delta R in MS", triggerPathName);
      myBook2D(ibooker, "resultDimuon_recoPtDRpos", dimuonPtBins, " #mu#mu pT (GeV)", dimuonDRBins, "#mu#mu #Delta R in MS");

    // Matching
      myBook2D(ibooker, "globGen_deltaEtaDeltaPhi", deltaEtaBins, "#Delta eta", deltaPhiBins, "#Delta phi");
      for(size_t i=0; i<filterNamesLevels.size(); i++){
        myBook2D(ibooker, TString::Format("filt%dGlob_deltaEtaDeltaPhi",int(i+1)), deltaEtaBins, "#Delta eta", deltaPhiBins, "#Delta phi", filterNamesLevels[i].first);
      }    
      myBook2D(ibooker, "pathGlob_deltaEtaDeltaPhi", deltaEtaBins, "#Delta eta", deltaPhiBins, "#Delta phi", triggerPathName);
    // Size of containers
      vector<double> sizeBins; sizeBins.push_back(10); sizeBins.push_back(0); sizeBins.push_back(10);
      myBook1D(ibooker, "genMuon_size", sizeBins, "container size" );
      myBook1D(ibooker, "globMuon_size", sizeBins, "container size" );
      for(size_t i=0; i<filterNamesLevels.size(); i++){
        myBook1D(ibooker, TString::Format("filt%dMuon_size",int(i+1)), sizeBins, "container size", filterNamesLevels[i].first);
      }    
      myBook1D(ibooker, "pathMuon_size", sizeBins, "container size", triggerPathName );
}

void HeavyFlavorValidation::analyze(const Event& iEvent, const EventSetup& iSetup){
  if(filterNamesLevels.size()==0){ 
    return;
  } 
//access the containers and create LeafCandidate copies
  vector<LeafCandidate> genMuons;
  Handle<GenParticleCollection> genParticles;
  iEvent.getByToken(genParticlesToken, genParticles);
  if(genParticles.isValid()){
    for(GenParticleCollection::const_iterator p=genParticles->begin(); p!= genParticles->end(); ++p){
      if( p->status() == 1 && std::abs(p->pdgId())==13 && 
          ( find( motherIDs.begin(), motherIDs.end(), -1 )!=motherIDs.end() || find( motherIDs.begin(), motherIDs.end(), getMotherId(&(*p)) )!=motherIDs.end() ) ){
        genMuons.push_back( *p );
      }  
    }
  }else{
    LogDebug("HLTriggerOfflineHeavyFlavor")<<"Could not access GenParticleCollection"<<endl;
  }
  sort(genMuons.begin(), genMuons.end(), GreaterByPt<LeafCandidate>());
  ME["genMuon_size"]->Fill(genMuons.size());
  LogDebug("HLTriggerOfflineHeavyFlavor")<<"GenParticleCollection from "<<genParticlesTag<<" has size: "<<genMuons.size()<<endl;
  
  vector<LeafCandidate> globMuons;
  vector<LeafCandidate> globMuons_position;
  Handle<MuonCollection> recoMuonsHandle;
  iEvent.getByToken(recoMuonsToken, recoMuonsHandle);
  if(recoMuonsHandle.isValid()){
    for(MuonCollection::const_iterator p=recoMuonsHandle->begin(); p!= recoMuonsHandle->end(); ++p){
      if(p->isGlobalMuon()){
        globMuons.push_back(*p);
        globMuons_position.push_back( LeafCandidate( p->charge(), math::XYZTLorentzVector(p->outerTrack()->innerPosition().x(), p->outerTrack()->innerPosition().y(), p->outerTrack()->innerPosition().z(), 0.) ) );
      }
    }
  }else{
    LogDebug("HLTriggerOfflineHeavyFlavor")<<"Could not access reco Muons"<<endl;
  }
  ME["globMuon_size"]->Fill(globMuons.size());
  LogDebug("HLTriggerOfflineHeavyFlavor")<<"Global Muons from "<<recoMuonsTag<<" has size: "<<globMuons.size()<<endl;

// access RAW trigger event  
  vector<vector<LeafCandidate> > muonsAtFilter;
  vector<vector<LeafCandidate> > muonPositionsAtFilter;  
  for(size_t i=0; i<filterNamesLevels.size(); i++){
    muonsAtFilter.push_back(vector<LeafCandidate>());
    muonPositionsAtFilter.push_back(vector<LeafCandidate>());
  }
  Handle<TriggerEventWithRefs> rawTriggerEvent;
  iEvent.getByToken( triggerSummaryRAWTag, rawTriggerEvent );
  if( rawTriggerEvent.isValid() ){
    for(size_t i=0; i<filterNamesLevels.size(); i++){
      size_t index = rawTriggerEvent->filterIndex(InputTag( filterNamesLevels[i].first, "", triggerProcessName ));
      if ( index < rawTriggerEvent->size() ){
        if( filterNamesLevels[i].second==1 ){
          vector<L1MuonParticleRef> l1Cands;
          rawTriggerEvent->getObjects( index, TriggerL1Mu, l1Cands );
          for(size_t j=0; j<l1Cands.size(); j++){
            muonsAtFilter[i].push_back(*l1Cands[j]);
          }
        }else{
          vector<RecoChargedCandidateRef> hltCands;        
          rawTriggerEvent->getObjects( index, TriggerMuon, hltCands );
          for(size_t j=0; j<hltCands.size(); j++){
            muonsAtFilter[i].push_back(*hltCands[j]);
            if( filterNamesLevels[i].second==2 ){
              muonPositionsAtFilter[i].push_back( LeafCandidate( hltCands[j]->charge(), math::XYZTLorentzVector(hltCands[j]->track()->innerPosition().x(), hltCands[j]->track()->innerPosition().y(), hltCands[j]->track()->innerPosition().z(), 0.) ) );
            }
          }
        }
      }
      ME[TString::Format("filt%dMuon_size",int(i+1))]->Fill(muonsAtFilter[i].size());
      LogDebug("HLTriggerOfflineHeavyFlavor")<<"Filter \""<<filterNamesLevels[i].first<<"\" has "<<muonsAtFilter[i].size()<<" muons"<<endl;
    }
  }else{
    LogDebug("HLTriggerOfflineHeavyFlavor")<<"Could not access RAWTriggerEvent"<<endl;
  }

// access AOD trigger event  
  vector<LeafCandidate> pathMuons;
  Handle<TriggerEvent> aodTriggerEvent;
  iEvent.getByToken(triggerSummaryAODTag,aodTriggerEvent);
  if(aodTriggerEvent.isValid()){
    TriggerObjectCollection allObjects = aodTriggerEvent->getObjects();
    for(int i=0; i<aodTriggerEvent->sizeFilters(); i++){         
     if(aodTriggerEvent->filterTag(i)==InputTag((filterNamesLevels.end()-1)->first,"",triggerProcessName)){
        Keys keys = aodTriggerEvent->filterKeys(i);
        for(size_t j=0; j<keys.size(); j++){
          pathMuons.push_back( LeafCandidate( allObjects[keys[j]].id()>0 ? 1 : -1, math::PtEtaPhiMLorentzVector( allObjects[keys[j]].pt(), allObjects[keys[j]].eta(), allObjects[keys[j]].phi(), muonMass ) ) );
        }
      }
    }
    ME["pathMuon_size"]->Fill(pathMuons.size());
    LogDebug("HLTriggerOfflineHeavyFlavor")<<"Path \""<<triggerPathName<<"\" has "<<pathMuons.size()<<" muons at last filter \""<<(filterNamesLevels.end()-1)->first<<"\""<<endl;
  }else{
    LogDebug("HLTriggerOfflineHeavyFlavor")<<"Could not access AODTriggerEvent"<<endl;
  }

// access Trigger Results
  bool triggerFired = false;
  Handle<TriggerResults> triggerResults;
  iEvent.getByToken(triggerResultsToken,triggerResults);
  if(triggerResults.isValid()){
    LogDebug("HLTriggerOfflineHeavyFlavor")<<"Successfully initialized "<<triggerResultsTag<<endl;
    const edm::TriggerNames & triggerNames = iEvent.triggerNames(*triggerResults);
    bool hlt_exists = false;
    for ( unsigned int i=0; i!=triggerNames.size(); i++) {
      TString hlt_name = triggerNames.triggerName(i);
      if (hlt_name.Contains(triggerPathName)) {
        triggerFired = triggerResults->accept( i );
        hlt_exists = true;
        break;
      }
    }
    if (!hlt_exists) {
      LogDebug("HLTriggerOfflineHeavyFlavor")<<triggerResultsTag<<" has no trigger: "<<triggerPathName<<endl;
    }
  }else{
    LogDebug("HLTriggerOfflineHeavyFlavor")<<"Could not initialize "<<triggerResultsTag<<endl;
  }

//create matching maps
  vector<int> glob_gen(genMuons.size(),-1);
  match( ME["globGen_deltaEtaDeltaPhi"], genMuons, globMuons, genGlobDeltaRMatchingCut, glob_gen );
  vector<vector<int> > filt_glob;
  for(size_t i=0; i<filterNamesLevels.size(); i++){
    filt_glob.push_back( vector<int>(globMuons.size(),-1) );            
    if( filterNamesLevels[i].second == 1 ){
      match( ME[TString::Format("filt%dGlob_deltaEtaDeltaPhi",int(i+1))], globMuons_position, muonsAtFilter[i] ,globL1DeltaRMatchingCut, filt_glob[i] );
    }else if( filterNamesLevels[i].second == 2 ){
      match( ME[TString::Format("filt%dGlob_deltaEtaDeltaPhi",int(i+1))], globMuons_position, muonPositionsAtFilter[i] ,globL2DeltaRMatchingCut, filt_glob[i] );
    }else if( filterNamesLevels[i].second > 2){
      match( ME[TString::Format("filt%dGlob_deltaEtaDeltaPhi",int(i+1))], globMuons, muonsAtFilter[i] ,globL3DeltaRMatchingCut, filt_glob[i] );
    }
  }
  vector<int> path_glob(globMuons.size(),-1);
  if( (filterNamesLevels.end()-1)->second == 1 ){
    match( ME["pathGlob_deltaEtaDeltaPhi"], globMuons_position, pathMuons ,globL1DeltaRMatchingCut, path_glob );
  }else if( (filterNamesLevels.end()-1)->second == 2 ){
    match( ME["pathGlob_deltaEtaDeltaPhi"], globMuons, pathMuons ,globL2DeltaRMatchingCut, path_glob );
  }else if( (filterNamesLevels.end()-1)->second > 2){
    match( ME["pathGlob_deltaEtaDeltaPhi"], globMuons, pathMuons ,globL3DeltaRMatchingCut, path_glob );
  }
    
//fill histos
  bool first = true;
  for(size_t i=0; i<genMuons.size(); i++){ 
    ME["genMuon_genEtaPt"]->Fill(genMuons[i].eta(), genMuons[i].pt());
    ME["genMuon_genEtaPhi"]->Fill(genMuons[i].eta(), genMuons[i].phi());
    if(glob_gen[i] != -1) { 
      ME["resGlobGen_genEtaPt"]->Fill(genMuons[i].eta(), genMuons[i].pt(), (globMuons[glob_gen[i]].pt()-genMuons[i].pt())/genMuons[i].pt() );
      ME["globMuon_genEtaPt"]->Fill(genMuons[i].eta(), genMuons[i].pt());
      ME["globMuon_genEtaPhi"]->Fill(genMuons[i].eta(), genMuons[i].phi());
      ME["globMuon_recoEtaPt"]->Fill(globMuons[glob_gen[i]].eta(), globMuons[glob_gen[i]].pt());
      ME["globMuon_recoEtaPhi"]->Fill(globMuons[glob_gen[i]].eta(), globMuons[glob_gen[i]].phi());
      for(size_t f=0; f<filterNamesLevels.size(); f++) { 
        if(filt_glob[f][glob_gen[i]] != -1) { 
          ME[TString::Format("resFilt%dGlob_recoEtaPt",int(f+1))]->Fill(globMuons[glob_gen[i]].eta(), globMuons[glob_gen[i]].pt(), (muonsAtFilter[f][filt_glob[f][glob_gen[i]]].pt()-globMuons[glob_gen[i]].pt())/globMuons[glob_gen[i]].pt() );
          ME[TString::Format("filt%dMuon_recoEtaPt",int(f+1))]->Fill(globMuons[glob_gen[i]].eta(), globMuons[glob_gen[i]].pt());
          ME[TString::Format("filt%dMuon_recoEtaPhi",int(f+1))]->Fill(globMuons[glob_gen[i]].eta(), globMuons[glob_gen[i]].phi());
        }else{
          break;
        }  
      }
      if(path_glob[glob_gen[i]] != -1){
        ME["resPathGlob_recoEtaPt"]->Fill(globMuons[glob_gen[i]].eta(), globMuons[glob_gen[i]].pt(), (pathMuons[path_glob[glob_gen[i]]].pt()-globMuons[glob_gen[i]].pt())/globMuons[glob_gen[i]].pt() );
        ME["pathMuon_recoEtaPt"]->Fill(globMuons[glob_gen[i]].eta(), globMuons[glob_gen[i]].pt());
        ME["pathMuon_recoEtaPhi"]->Fill(globMuons[glob_gen[i]].eta(), globMuons[glob_gen[i]].phi());
      }
//highest pt muon      
      if( first ){
        first = false;
        if( triggerFired ){
          ME["resultMuon_recoEtaPt"]->Fill(globMuons[glob_gen[i]].eta(), globMuons[glob_gen[i]].pt());
          ME["resultMuon_recoEtaPhi"]->Fill(globMuons[glob_gen[i]].eta(), globMuons[glob_gen[i]].phi());
        }
      }
    } 
  }  
 
//fill dimuon histograms (highest pT, opposite charge) 
  int secondMuon = 0;
  for(size_t j=1; j<genMuons.size(); j++){
    if(genMuons[0].charge()*genMuons[j].charge()==-1){
      secondMuon = j;
      break;
    }
  }
  if(secondMuon > 0){
//two generated
    double genDimuonPt = (genMuons[0].p4()+genMuons[secondMuon].p4()).pt();
    double genDimuonEta = (genMuons[0].p4()+genMuons[secondMuon].p4()).eta();
    double genDimuonRap = (genMuons[0].p4()+genMuons[secondMuon].p4()).Rapidity();
    double genDimuonDR = deltaR<LeafCandidate,LeafCandidate>( genMuons[0], genMuons[secondMuon] );
    bool highPt = genMuons[0].pt()>7. && genMuons[secondMuon].pt()>7;
    ME["genDimuon_genEtaPt"]->Fill( genDimuonEta, genDimuonPt );
    ME["genDimuon_genRapPt"]->Fill( genDimuonRap, genDimuonPt );
    if(highPt) ME["genDimuon_genPtDR"]->Fill( genDimuonPt, genDimuonDR );
//two global
    if(glob_gen[0]!=-1 && glob_gen[secondMuon]!=-1){
      ME["globDimuon_genEtaPt"]->Fill( genDimuonEta, genDimuonPt );
      ME["globDimuon_genRapPt"]->Fill( genDimuonRap, genDimuonPt );
      if(highPt) ME["globDimuon_genPtDR"]->Fill( genDimuonPt, genDimuonDR );
      double globDimuonPt = (globMuons[glob_gen[0]].p4()+globMuons[glob_gen[secondMuon]].p4()).pt();
      double globDimuonEta = (globMuons[glob_gen[0]].p4()+globMuons[glob_gen[secondMuon]].p4()).eta();
      double globDimuonRap = (globMuons[glob_gen[0]].p4()+globMuons[glob_gen[secondMuon]].p4()).Rapidity();
      double globDimuonDR = deltaR<LeafCandidate,LeafCandidate>( globMuons[glob_gen[0]], globMuons[glob_gen[secondMuon]] );
      double globDimuonDRpos = deltaR<LeafCandidate,LeafCandidate>( globMuons_position[glob_gen[0]], globMuons_position[glob_gen[secondMuon]] );
      ME["globDimuon_recoEtaPt"]->Fill( globDimuonEta, globDimuonPt );
      ME["globDimuon_recoRapPt"]->Fill( globDimuonRap, globDimuonPt );
      if(highPt) ME["globDimuon_recoPtDR"]->Fill( globDimuonPt, globDimuonDR );
      if(highPt) ME["globDimuon_recoPtDRpos"]->Fill( globDimuonPt, globDimuonDRpos );
//two filter objects    
      for(size_t f=0; f<filterNamesLevels.size(); f++){
        if(filt_glob[f][glob_gen[0]] != -1 && filt_glob[f][glob_gen[secondMuon]] != -1){
          ME[TString::Format("diFilt%dDimuon_recoEtaPt",int(f+1))]->Fill( globDimuonEta, globDimuonPt );
          ME[TString::Format("diFilt%dDimuon_recoRapPt",int(f+1))]->Fill( globDimuonRap, globDimuonPt );
          if(highPt) ME[TString::Format("diFilt%dDimuon_recoPtDR",int(f+1))]->Fill( globDimuonPt, globDimuonDR );
          if(highPt) ME[TString::Format("diFilt%dDimuon_recoPtDRpos",int(f+1))]->Fill( globDimuonPt, globDimuonDRpos );
        }else{
          break;
        }  
      } 
//one filter object
      for(size_t f=0; f<filterNamesLevels.size(); f++){
        if(filt_glob[f][glob_gen[0]] != -1 || filt_glob[f][glob_gen[secondMuon]] != -1){
          ME[TString::Format("filt%dDimuon_recoEtaPt",int(f+1))]->Fill( globDimuonEta, globDimuonPt );
          ME[TString::Format("filt%dDimuon_recoRapPt",int(f+1))]->Fill( globDimuonRap, globDimuonPt );
          if(highPt) ME[TString::Format("filt%dDimuon_recoPtDR",int(f+1))]->Fill( globDimuonPt, globDimuonDR );
          if(highPt) ME[TString::Format("filt%dDimuon_recoPtDRpos",int(f+1))]->Fill( globDimuonPt, globDimuonDRpos );
        }else{
          break;
        }
      }
//two path objects
      if(path_glob[glob_gen[0]] != -1 && path_glob[glob_gen[secondMuon]] != -1){
        ME["diPathDimuon_recoEtaPt"]->Fill( globDimuonEta, globDimuonPt );
        ME["diPathDimuon_recoRapPt"]->Fill( globDimuonRap, globDimuonPt );
        if(highPt) ME["diPathDimuon_recoPtDR"]->Fill( globDimuonPt, globDimuonDR );
        if(highPt) ME["diPathDimuon_recoPtDRpos"]->Fill( globDimuonPt, globDimuonDRpos );
      }
//one path object
      if(path_glob[glob_gen[0]] != -1 || path_glob[glob_gen[secondMuon]] != -1){
        ME["pathDimuon_recoEtaPt"]->Fill( globDimuonEta, globDimuonPt );
        ME["pathDimuon_recoRapPt"]->Fill( globDimuonRap, globDimuonPt );
        if(highPt) ME["pathDimuon_recoPtDR"]->Fill( globDimuonPt, globDimuonDR );
        if(highPt) ME["pathDimuon_recoPtDRpos"]->Fill( globDimuonPt, globDimuonDRpos );
      }
//trigger result
      if( triggerFired ){
        ME["resultDimuon_recoEtaPt"]->Fill( globDimuonEta, globDimuonPt );
        ME["resultDimuon_recoRapPt"]->Fill( globDimuonRap, globDimuonPt );
        if(highPt) ME["resultDimuon_recoPtDR"]->Fill( globDimuonPt, globDimuonDR );
        if(highPt) ME["resultDimuon_recoPtDRpos"]->Fill( globDimuonPt, globDimuonDRpos );
      }
    }
  }
}

int HeavyFlavorValidation::getMotherId( const Candidate * p ){
  const Candidate* mother = p->mother();
  if( mother ){
    if( mother->pdgId() == p->pdgId() ){
      return getMotherId(mother);
    }else{
      return mother->pdgId();
    }
  }else{
    return 0;
  }
}

void HeavyFlavorValidation::match( MonitorElement * me, vector<LeafCandidate> & from, vector<LeafCandidate> & to, double dRMatchingCut, vector<int> & map ){
  vector<double> dR(from.size());
  for(size_t i=0; i<from.size(); i++){
    map[i] = -1;
    dR[i] = 10.;
    //find closest
    for(size_t j=0; j<to.size(); j++){
      double dRtmp = deltaR<double>(from[i].eta(), from[i].phi(), to[j].eta(), to[j].phi());
      if( dRtmp < dR[i] ){
        dR[i] = dRtmp;
        map[i] = j;
      }
    }
    //fill matching histo
    if( map[i] != -1 ){
      me->Fill( to[map[i]].eta()-from[i].eta(), deltaPhi<double>(to[map[i]].phi(), from[i].phi()) );
    }
    //apply matching cut
    if( dR[i] > dRMatchingCut ){
      map[i] = -1;
    }
    //remove duplication
    if( map[i] != -1 ){
      for(size_t k=0; k<i; k++){
        if( map[k] != -1 && map[i] == map[k] ){
          if( dR[i] < dR[k] ){
            map[k] = -1;
          }else{
            map[i] = -1;
          }
          break;
        }
      }
    }
  }
}

void HeavyFlavorValidation::myBook2D(DQMStore::IBooker & ibooker, TString name, vector<double> &ptBins, TString ptLabel, vector<double> &etaBins, TString etaLabel, TString title )
{
//   dqmStore->setCurrentFolder(dqmFolder+"/"+folder);
  int ptN = ptBins.size()==3 ? (int)ptBins[0]+1 : ptBins.size();
  Double_t *pt = new Double_t[ ptN ];
  for(int i=0; i<ptN; i++){
    pt[i] = ptBins.size()==3 ? ptBins[1] + i*(ptBins[2]-ptBins[1])/ptBins[0] : ptBins[i] ;
  }
  int etaN = etaBins.size()==3 ? (int)etaBins[0]+1 : etaBins.size();
  Double_t *eta = new Double_t[ etaN ];
  for(int i=0; i<etaN; i++){
    eta[i] = etaBins.size()==3 ? etaBins[1] + i*(etaBins[2]-etaBins[1])/etaBins[0] : etaBins[i] ;
  }
  TH2F *h = new TH2F( name, name, ptN-1, pt, etaN-1, eta  );
  h->SetXTitle(ptLabel);
  h->SetYTitle(etaLabel);
  h->SetTitle(title);
  ME[name] = ibooker.book2D( name.Data(), h );
  delete h;
}

void HeavyFlavorValidation::myBookProfile2D(DQMStore::IBooker & ibooker, TString name, vector<double> &ptBins, TString ptLabel, vector<double> &etaBins, TString etaLabel, TString title )
{
//   dqmStore->setCurrentFolder(dqmFolder+"/"+folder);
  int ptN = ptBins.size()==3 ? (int)ptBins[0]+1 : ptBins.size();
  Double_t *pt = new Double_t[ ptN ];
  for(int i=0; i<ptN; i++){
    pt[i] = ptBins.size()==3 ? ptBins[1] + i*(ptBins[2]-ptBins[1])/ptBins[0] : ptBins[i] ;
  }
  int etaN = etaBins.size()==3 ? (int)etaBins[0]+1 : etaBins.size();
  Double_t *eta = new Double_t[ etaN ];
  for(int i=0; i<etaN; i++){
    eta[i] = etaBins.size()==3 ? etaBins[1] + i*(etaBins[2]-etaBins[1])/etaBins[0] : etaBins[i] ;
  }
  TProfile2D *h = new TProfile2D( name, name, ptN-1, pt, etaN-1, eta  );
  h->SetXTitle(ptLabel);
  h->SetYTitle(etaLabel);
  h->SetTitle(title);
  ME[name] = ibooker.bookProfile2D( name.Data(), h );
  delete h;
}

void HeavyFlavorValidation::myBook1D(DQMStore::IBooker & ibooker, TString name, vector<double> &bins, TString label, TString title )
{
//   dqmStore->setCurrentFolder(dqmFolder+"/"+folder);
  int binsN = bins.size()==3 ? (int)bins[0]+1 : bins.size();
  Double_t *myBins = new Double_t[ binsN ];
  for(int i=0; i<binsN; i++){
    myBins[i] = bins.size()==3 ? bins[1] + i*(bins[2]-bins[1])/bins[0] : bins[i] ;
  }
  TH1F *h = new TH1F( name, name, binsN-1, myBins );
  h->SetXTitle(label);
  h->SetTitle(title);
  ME[name] = ibooker.book1D( name.Data(), h );
  delete h;
}

HeavyFlavorValidation::~HeavyFlavorValidation(){
}

//define this as a plug-in
DEFINE_FWK_MODULE(HeavyFlavorValidation);