/data/refman/pasoursint/CMSSW_6_1_2_SLHC2_patch1/src/DQMOffline/Trigger/src/EgHLTOfflineSource.cc

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#include "DQMOffline/Trigger/interface/EgHLTOfflineSource.h"

#include "DQMOffline/Trigger/interface/EgHLTEleHLTFilterMon.h"
#include "DQMOffline/Trigger/interface/EgHLTPhoHLTFilterMon.h"

#include "DQMOffline/Trigger/interface/EgHLTDebugFuncs.h"
#include "DQMOffline/Trigger/interface/EgHLTDQMCut.h"
#include "DQMOffline/Trigger/interface/EgHLTMonElemFuncs.h"
#include "DQMOffline/Trigger/interface/EgHLTTrigTools.h"

#include "DQMServices/Core/interface/MonitorElement.h"

#include "FWCore/Framework/interface/Run.h"
#include "HLTrigger/HLTcore/interface/HLTConfigProvider.h"

#include <boost/algorithm/string.hpp>

//#include "DQMOffline/Trigger/interface/EgHLTCutCodes.h"
#include "DataFormats/TrackReco/interface/Track.h"
#include "DataFormats/EgammaCandidates/interface/ElectronFwd.h"
#include "DataFormats/HLTReco/interface/TriggerFilterObjectWithRefs.h"
using namespace egHLT;

EgHLTOfflineSource::EgHLTOfflineSource(const edm::ParameterSet& iConfig):
  nrEventsProcessed_(0),isSetup_(false)
{
  dbe_ = edm::Service<DQMStore>().operator->(); //only one chance to get this, if we ever have another shot, remember to check isSetup is okay
  if (!dbe_) {
    //our one and only error message ever logged
    edm::LogInfo("EgHLTOfflineSource") << "unable to get DQMStore service?";
  }
  if(iConfig.getUntrackedParameter<bool>("DQMStore", false)) {
    dbe_->setVerbose(0);
  }

 
  binData_.setup(iConfig.getParameter<edm::ParameterSet>("binData"));
  cutMasks_.setup(iConfig.getParameter<edm::ParameterSet>("cutMasks"));
  eleHLTFilterNames_ = iConfig.getParameter<std::vector<std::string> >("eleHLTFilterNames");
  eleHLTFilterNames2Leg_ = iConfig.getParameter<std::vector<std::string> >("eleHLTFilterNames2Leg");
  phoHLTFilterNames_ = iConfig.getParameter<std::vector<std::string> >("phoHLTFilterNames");
  eleTightLooseTrigNames_ = iConfig.getParameter<std::vector<std::string> >("eleTightLooseTrigNames");
  diEleTightLooseTrigNames_ = iConfig.getParameter<std::vector<std::string> >("diEleTightLooseTrigNames"); 
  phoTightLooseTrigNames_ = iConfig.getParameter<std::vector<std::string> >("phoTightLooseTrigNames");
  diPhoTightLooseTrigNames_ = iConfig.getParameter<std::vector<std::string> >("diPhoTightLooseTrigNames"); 

  filterInactiveTriggers_ =iConfig.getParameter<bool>("filterInactiveTriggers");
  hltTag_ = iConfig.getParameter<std::string>("hltTag");
 
  
  dirName_=iConfig.getParameter<std::string>("DQMDirName");//"HLT/EgHLTOfflineSource_" + iConfig.getParameter<std::string>("@module_label");

 
  offEvtHelper_.setup(iConfig);

}


EgHLTOfflineSource::~EgHLTOfflineSource()
{ 
  // LogDebug("EgHLTOfflineSource") << "destructor called";
  for(size_t i=0;i<eleFilterMonHists_.size();i++){
    delete eleFilterMonHists_[i];
  } 
  for(size_t i=0;i<phoFilterMonHists_.size();i++){
    delete phoFilterMonHists_[i];
  }
  for(size_t i=0;i<eleMonElems_.size();i++){
    delete eleMonElems_[i];
  } 
  for(size_t i=0;i<phoMonElems_.size();i++){
    delete phoMonElems_[i];
  }
}

void EgHLTOfflineSource::beginJob()
{
  if(dbe_) {
    dbe_->setCurrentFolder(dirName_);
    //the one monitor element the source fills directly
    dqmErrsMonElem_ =dbe_->book1D("dqmErrors","EgHLTOfflineSource Errors",101,-0.5,100.5);
    nrEventsProcessedMonElem_ = dbe_->bookInt("nrEventsProcessed");
  }
}

void EgHLTOfflineSource::endJob() 
{
  //  LogDebug("EgHLTOfflineSource") << "ending job";
}

//due to changes in HLTConfigProvider to be called at beginRun rather then beginJob, I moved everything from beginJob here and ensure that it is only called once
//if the HLTConfig changes during the job, the results are "un predictable" but in practice should be fine
//the HLTConfig is used for working out which triggers are active, working out which filternames correspond to paths and L1 seeds
//assuming those dont change for E/g it *should* be fine 
void EgHLTOfflineSource::beginRun(const edm::Run& run, const edm::EventSetup& c)
{
  if(dbe_ && !isSetup_){
    HLTConfigProvider hltConfig;
    bool changed=false;
    hltConfig.init(run,c,hltTag_,changed);
    if(filterInactiveTriggers_) filterTriggers(hltConfig);

    std::vector<std::string> hltFiltersUsed;
    getHLTFilterNamesUsed(hltFiltersUsed);
    TrigCodes::setCodes(hltFiltersUsed);
   
    offEvtHelper_.setupTriggers(hltConfig,hltFiltersUsed);

    //now book ME's
    dbe_->setCurrentFolder(dirName_+"/Source_Histos");
    //each trigger path with generate object distributions and efficiencies (BUT not trigger efficiencies...)
    for(size_t i=0;i<eleHLTFilterNames_.size();i++){dbe_->setCurrentFolder(dirName_+"/Source_Histos/"+eleHLTFilterNames_[i]);  addEleTrigPath(eleHLTFilterNames_[i]);}
    for(size_t i=0;i<phoHLTFilterNames_.size();i++){dbe_->setCurrentFolder(dirName_+"/Source_Histos/"+phoHLTFilterNames_[i]);  addPhoTrigPath(phoHLTFilterNames_[i]);}
    //efficiencies of one trigger path relative to another
    MonElemFuncs::initTightLooseTrigHists(eleMonElems_,eleTightLooseTrigNames_,binData_,"gsfEle");
    //new EgHLTDQMVarCut<OffEle>(cutMasks_.stdEle,&OffEle::cutCode)); 
    //MonElemFuncs::initTightLooseTrigHistsTrigCuts(eleMonElems_,eleTightLooseTrigNames_,binData_);
      
   
    MonElemFuncs::initTightLooseTrigHists(phoMonElems_,phoTightLooseTrigNames_,binData_,"pho");
    //  new EgHLTDQMVarCut<OffPho>(cutMasks_.stdPho,&OffPho::cutCode)); 
    //MonElemFuncs::initTightLooseTrigHistsTrigCuts(phoMonElems_,phoTightLooseTrigNames_,binData_);
      
    //di-object triggers
    MonElemFuncs::initTightLooseTrigHists(eleMonElems_,diEleTightLooseTrigNames_,binData_,"gsfEle");
    //  new EgDiEleCut(cutMasks_.stdEle,&OffEle::cutCode));
    MonElemFuncs::initTightLooseTrigHists(phoMonElems_,diPhoTightLooseTrigNames_,binData_,"pho");
    //                          new EgDiPhoCut(cutMasks_.stdPho,&OffPho::cutCode));
    
    MonElemFuncs::initTightLooseDiObjTrigHistsTrigCuts(eleMonElems_,diEleTightLooseTrigNames_,binData_);
    MonElemFuncs::initTightLooseDiObjTrigHistsTrigCuts(phoMonElems_,diPhoTightLooseTrigNames_,binData_);

    
    //tag and probe trigger efficiencies
    //this is to do measure the trigger efficiency with respect to a fully selected offline electron
    //using a tag and probe technique (note: this will be different to the trigger efficiency normally calculated) 
    bool doTrigTagProbeEff=false;
    if(doTrigTagProbeEff){
      for(size_t i=0;i<eleHLTFilterNames_.size();i++){
        dbe_->setCurrentFolder(dirName_+"/Source_Histos/"+eleHLTFilterNames_[i]);
        MonElemFuncs::initTrigTagProbeHist(eleMonElems_,eleHLTFilterNames_[i],cutMasks_.trigTPEle,binData_);
      }
      for(size_t i=0;i<phoHLTFilterNames_.size();i++){
        dbe_->setCurrentFolder(dirName_+"/Source_Histos/"+phoHLTFilterNames_[i]);
        MonElemFuncs::initTrigTagProbeHist(phoMonElems_,phoHLTFilterNames_[i],cutMasks_.trigTPPho,binData_);
      }
      for(size_t i=0;i<eleHLTFilterNames2Leg_.size();i++){
        dbe_->setCurrentFolder(dirName_+"/Source_Histos/"+eleHLTFilterNames2Leg_[i].substr(eleHLTFilterNames2Leg_[i].find("::")+2));
        //std::cout<<"FilterName: "<<eleHLTFilterNames2Leg_[i]<<std::endl;
        //std::cout<<"Folder: "<<eleHLTFilterNames2Leg_[i].substr(eleHLTFilterNames2Leg_[i].find("::")+2)<<std::endl;
        MonElemFuncs::initTrigTagProbeHist_2Leg(eleMonElems_,eleHLTFilterNames2Leg_[i],cutMasks_.trigTPEle,binData_);
      }
      //tag and probe not yet implimented for photons (attemping to see if it makes sense first)
      // MonElemFuncs::initTrigTagProbeHists(phoMonElems,phoHLTFilterNames_);
    }
    isSetup_=true;
    
    dbe_->setCurrentFolder(dirName_);
  }
}


void EgHLTOfflineSource::endRun(const edm::Run& run, const edm::EventSetup& c)
{
  //LogDebug("EgHLTOfflineSource") << "endRun, run " << run.id();
}


void EgHLTOfflineSource::analyze(const edm::Event& iEvent,const edm::EventSetup& iSetup)
{ 
  //debugging info, commented out for prod
  //  int nrProducts = debug::listAllProducts<edm::ValueMap<double> >(iEvent,"EgHLTOfflineSource");
  //edm::LogInfo("EgHLTOfflineSource")<<" HERE ";
  // std::cout <<"here"<<std::endl;
  if(!dbe_) return;
   
 
 


  const double weight=1.; //we have the ability to weight but its disabled for now - maybe use this for prescales?
  nrEventsProcessed_++;
  nrEventsProcessedMonElem_->Fill(nrEventsProcessed_);
  int errCode = offEvtHelper_.makeOffEvt(iEvent,iSetup,offEvt_);
  if(errCode!=0){
    dqmErrsMonElem_->Fill(errCode);
    return;
  }


  for(size_t pathNr=0;pathNr<eleFilterMonHists_.size();pathNr++){
    eleFilterMonHists_[pathNr]->fill(offEvt_,weight);
  } 
  for(size_t pathNr=0;pathNr<phoFilterMonHists_.size();pathNr++){
    phoFilterMonHists_[pathNr]->fill(offEvt_,weight);
  }

  for(size_t monElemNr=0;monElemNr<eleMonElems_.size();monElemNr++){
    const std::vector<OffEle>& eles = offEvt_.eles();
    for(size_t eleNr=0;eleNr<eles.size();eleNr++){
      eleMonElems_[monElemNr]->fill(eles[eleNr],offEvt_,weight);
    }
  }

  for(size_t monElemNr=0;monElemNr<phoMonElems_.size();monElemNr++){
    const std::vector<OffPho>& phos = offEvt_.phos();
    for(size_t phoNr=0;phoNr<phos.size();phoNr++){
      phoMonElems_[monElemNr]->fill(phos[phoNr],offEvt_,weight);
    }
  }
}


void EgHLTOfflineSource::addEleTrigPath(const std::string& name)
{
  EleHLTFilterMon* filterMon = new EleHLTFilterMon(name,TrigCodes::getCode(name.c_str()),binData_,cutMasks_);  
  eleFilterMonHists_.push_back(filterMon);
  std::sort(eleFilterMonHists_.begin(),eleFilterMonHists_.end(),EleHLTFilterMon::ptrLess<EleHLTFilterMon>()); //takes a minor efficiency hit at initalisation to ensure that the vector is always sorted
}

void EgHLTOfflineSource::addPhoTrigPath(const std::string& name)
{
  PhoHLTFilterMon* filterMon = new PhoHLTFilterMon(name,TrigCodes::getCode(name.c_str()),binData_,cutMasks_);
  phoFilterMonHists_.push_back(filterMon);
  std::sort(phoFilterMonHists_.begin(),phoFilterMonHists_.end(),PhoHLTFilterMon::ptrLess<PhoHLTFilterMon>()); //takes a minor efficiency hit at initalisation to ensure that the vector is always sorted
}

//this function puts every filter name used in a std::vector
//due to the design, to ensure we get every filter, filters will be inserted multiple times
//eg electron filters will contain photon triggers which are also in the photon filters
//but only want one copy in the vector
//this function is intended to be called once per job so some inefficiency can can be tolerated
//therefore we will use a std::set to ensure that each filtername is only inserted once
//and then convert to a std::vector
void EgHLTOfflineSource::getHLTFilterNamesUsed(std::vector<std::string>& filterNames)const
{ 
  std::set<std::string> filterNameSet;
  for(size_t i=0;i<eleHLTFilterNames_.size();i++) filterNameSet.insert(eleHLTFilterNames_[i]);
  for(size_t i=0;i<phoHLTFilterNames_.size();i++) filterNameSet.insert(phoHLTFilterNames_[i]);
  //here we are little more complicated as entries are of the form "tightTrig:looseTrig" 
  //so we need to split them first
  for(size_t tightLooseNr=0;tightLooseNr<eleTightLooseTrigNames_.size();tightLooseNr++){
    std::vector<std::string> trigNames;
    boost::split(trigNames,eleTightLooseTrigNames_[tightLooseNr],boost::is_any_of(std::string(":")));
    if(trigNames.size()!=2) continue; //format incorrect
    filterNameSet.insert(trigNames[0]);
    filterNameSet.insert(trigNames[1]);
  }
  for(size_t tightLooseNr=0;tightLooseNr<diEleTightLooseTrigNames_.size();tightLooseNr++){
    std::vector<std::string> trigNames;
    boost::split(trigNames,diEleTightLooseTrigNames_[tightLooseNr],boost::is_any_of(std::string(":")));
    if(trigNames.size()!=2) continue; //format incorrect
    filterNameSet.insert(trigNames[0]);
    filterNameSet.insert(trigNames[1]);
  }
  for(size_t tightLooseNr=0;tightLooseNr<phoTightLooseTrigNames_.size();tightLooseNr++){
    std::vector<std::string> trigNames;
    boost::split(trigNames,phoTightLooseTrigNames_[tightLooseNr],boost::is_any_of(std::string(":")));
    if(trigNames.size()!=2) continue; //format incorrect
    filterNameSet.insert(trigNames[0]);
    filterNameSet.insert(trigNames[1]);
  } 
  for(size_t tightLooseNr=0;tightLooseNr<diPhoTightLooseTrigNames_.size();tightLooseNr++){
    std::vector<std::string> trigNames;
    boost::split(trigNames,diPhoTightLooseTrigNames_[tightLooseNr],boost::is_any_of(std::string(":")));
    if(trigNames.size()!=2) continue; //format incorrect
    filterNameSet.insert(trigNames[0]);
    filterNameSet.insert(trigNames[1]);
  }
  //right all the triggers are inserted once and only once in the set, convert to vector
  //very lazy, create a new vector so can use the constructor and then use swap to transfer
  std::vector<std::string>(filterNameSet.begin(),filterNameSet.end()).swap(filterNames);
}

void EgHLTOfflineSource::filterTriggers(const HLTConfigProvider& hltConfig)
{
  
  std::vector<std::string> activeFilters;
  std::vector<std::string> activeEleFilters;
  std::vector<std::string> activeEle2LegFilters;
  std::vector<std::string> activePhoFilters;
  std::vector<std::string> activePho2LegFilters;
  
  trigTools::getActiveFilters(hltConfig,activeFilters,activeEleFilters,activeEle2LegFilters,activePhoFilters,activePho2LegFilters);
  
  trigTools::filterInactiveTriggers(eleHLTFilterNames_,activeEleFilters);
  trigTools::filterInactiveTriggers(phoHLTFilterNames_,activePhoFilters);
  trigTools::filterInactiveTriggers(eleHLTFilterNames2Leg_,activeEle2LegFilters);
  trigTools::filterInactiveTightLooseTriggers(eleTightLooseTrigNames_,activeEleFilters);
  trigTools::filterInactiveTightLooseTriggers(diEleTightLooseTrigNames_,activeEleFilters);
  trigTools::filterInactiveTightLooseTriggers(phoTightLooseTrigNames_,activePhoFilters);
  trigTools::filterInactiveTightLooseTriggers(diPhoTightLooseTrigNames_,activePhoFilters);      
}