/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_5_3_14/src/RecoLuminosity/LumiProducer/plugins/LumiCalculator.cc

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#ifndef RecoLuminosity_LumiProducer_LumiCalculator_h
#define RecoLuminosity_LumiProducer_LumiCalculator_h
#include "FWCore/Framework/interface/EDAnalyzer.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/Run.h"
#include "FWCore/Framework/interface/LuminosityBlock.h"
#include "DataFormats/Common/interface/Handle.h"
#include "DataFormats/Luminosity/interface/LumiSummaryRunHeader.h"
#include "DataFormats/Luminosity/interface/LumiSummary.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "HLTrigger/HLTcore/interface/HLTConfigProvider.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include <boost/regex.hpp>
#include <iostream>
#include <map>
struct hltPerPathInfo{
  hltPerPathInfo():prescale(0){}
  unsigned int prescale;
};
struct l1PerBitInfo{
  l1PerBitInfo():prescale(0){}
  unsigned int prescale;
};
struct MyPerLumiInfo{
  unsigned int lsnum;
  float livefraction;
  float intglumi;
  unsigned long long deadcount;
};

class LumiCalculator : public edm::EDAnalyzer{
public:
  
  explicit LumiCalculator(edm::ParameterSet const& pset);
  virtual ~LumiCalculator();

private:  
  virtual void beginJob();
  virtual void beginRun(const edm::Run& run, const edm::EventSetup& c);
  virtual void analyze(edm::Event const& e, edm::EventSetup const& c);
  virtual void endLuminosityBlock(edm::LuminosityBlock const& lumiBlock, 
                                  edm::EventSetup const& c);
  virtual void endRun(edm::Run const&, edm::EventSetup const&);
  virtual void endJob();
  std::vector<std::string> splitpathstr(const std::string& strValue,const std::string separator);
  HLTConfigProvider hltConfig_;
  std::multimap<std::string,std::string> trgpathMmap_;//key:hltpath,value:l1bit
  std::map<std::string,hltPerPathInfo> hltmap_;
  std::map<std::string,l1PerBitInfo> l1map_;//
  std::vector<MyPerLumiInfo> perrunlumiinfo_;
private:
  edm::LogInfo* log_;
  bool showTrgInfo_;
  unsigned int currentlumi_;
};//end class

// -----------------------------------------------------------------

LumiCalculator::LumiCalculator(edm::ParameterSet const& pset):log_( new edm::LogInfo("LumiReport")),currentlumi_(0){
  showTrgInfo_=pset.getUntrackedParameter<bool>("showTriggerInfo",false);
}

// -----------------------------------------------------------------

LumiCalculator::~LumiCalculator(){
  delete log_; log_=0; 
}

// -----------------------------------------------------------------

void LumiCalculator::analyze(edm::Event const& e,edm::EventSetup const&){
  
}

// -----------------------------------------------------------------

void LumiCalculator::beginJob(){
  
}

// -----------------------------------------------------------------

void LumiCalculator::beginRun(const edm::Run& run, const edm::EventSetup& c){
  //std::cout<<"I'm in run number "<<run.run()<<std::endl;
  //if(!hltConfig_.init("HLT")){
  // throw cms::Exception("HLT process cannot be initialized");
  //}
  bool changed(true);
  const std::string processname("HLT");
  if(!hltConfig_.init(run,c,processname,changed)){
    throw cms::Exception("HLT process cannot be initialized");
  }
  perrunlumiinfo_.clear();
  trgpathMmap_.clear();
  hltmap_.clear();
  l1map_.clear();
  //hltConfig_.dump("processName");
  //hltConfig_.dump("TableName");
  //hltConfig_.dump("Triggers");
  //hltConfig_.dump("Modules");  
  if(showTrgInfo_){
    *log_<<"======Trigger Configuration Overview======\n";
    *log_<<"Run "<<run.run()<<" Trigger Table : "<<hltConfig_.tableName()<<"\n";
  }
  unsigned int totaltrg=hltConfig_.size();
  for (unsigned int t=0;t<totaltrg;++t){
    std::string hltname(hltConfig_.triggerName(t));
    std::vector<std::string> numpathmodules=hltConfig_.moduleLabels(hltname);
    if(showTrgInfo_){
      *log_<<t<<" HLT path\t"<<hltname<<"\n";
    }
    hltPerPathInfo hlt;
    hlt.prescale=1;
    hltmap_.insert(std::make_pair(hltname,hlt));
    std::vector<std::string>::iterator hltpathBeg=numpathmodules.begin();
    std::vector<std::string>::iterator hltpathEnd=numpathmodules.end();
    unsigned int mycounter=0;
    for(std::vector<std::string>::iterator numpathmodule = hltpathBeg;
        numpathmodule!=hltpathEnd; ++numpathmodule ) {
      if (hltConfig_.moduleType(*numpathmodule) != "HLTLevel1GTSeed"){
        continue;
      }
      ++mycounter;
     
      edm::ParameterSet l1GTPSet=hltConfig_.modulePSet(*numpathmodule);
      std::string l1pathname=l1GTPSet.getParameter<std::string>("L1SeedsLogicalExpression");
      //*log_<<"numpathmodule "<< *numpathmodule <<" : l1pathname "<<l1pathname<<"\n";
      if(mycounter>1){
        if(showTrgInfo_){
          *log_<<"\tskip and erase previous seeds : multiple L1SeedsLogicalExpressions per hlt path\n";
        }
        //erase all previously calculated seeds for this path
        trgpathMmap_.erase(hltname);
        continue;
      }
      if(l1pathname.find("(")!=std::string::npos){
        if(showTrgInfo_){
          *log_<<"  L1SeedsLogicalExpression(Complex)\t"<<l1pathname<<"\n";
          *log_<<"\tskip:contain complex logic\n";
        }
        continue;
      }else if(l1pathname.find("OR")!=std::string::npos){
        if(showTrgInfo_){
          *log_<<"  L1SeedsLogicalExpression(ORed)\t"<<l1pathname<<"\n";
        }
        std::vector<std::string> seeds=splitpathstr(l1pathname," OR ");
        if(seeds.size()>2){
          if(showTrgInfo_){
            *log_<<"\tskip:contain >1 OR\n";
          }
          continue;
        }else{
          for(std::vector<std::string>::iterator i=seeds.begin();i!=seeds.end();++i){
            if(i->size()!=0 && showTrgInfo_)  *log_<<"\t\tseed: "<<*i<<"\n";
            if(i==seeds.begin()){//for now we take the first one from OR
                trgpathMmap_.insert(std::make_pair(hltname,*i));
            }
          }
        }
      }else if (l1pathname.find("AND")!=std::string::npos){
        if(showTrgInfo_){
          *log_<<"  L1SeedsLogicalExpression(ANDed)\t"<< l1pathname<< "\n";
        }
        std::vector<std::string> seeds=splitpathstr(l1pathname," AND ");
        if(seeds.size()>2){
          if(showTrgInfo_){
            *log_<<"\tskip:contain >1 AND\n";
          }
          continue;
        }else{
          for(std::vector<std::string>::iterator i=seeds.begin();
              i!=seeds.end();++i){
            if(i->size()!=0 && showTrgInfo_) *log_<<"\t\tseed: "<<*i<<"\n";
            if(i==seeds.begin()){//for now we take the first one 
              trgpathMmap_.insert(std::make_pair(hltname,*i));
            }
          }
        }
      }else{
        if(showTrgInfo_){
          *log_<<"  L1SeedsLogicalExpression(ONE)\t"<< l1pathname<<"\n";
        }
        if(splitpathstr(l1pathname," NOT ").size()>1){
          if(showTrgInfo_){
            *log_<<"\tskip:contain NOT\n";
          }
          continue;
        }
        trgpathMmap_.insert(std::make_pair(hltname,l1pathname));
      } 
    }
  }
  if(showTrgInfo_){
    *log_<<"================\n";
  }
}

// -----------------------------------------------------------------
void LumiCalculator::endLuminosityBlock(edm::LuminosityBlock const& lumiBlock, 
                                        edm::EventSetup const& c){
  //std::cout<<"I'm in lumi block "<<lumiBlock.id()<<std::endl;
  
  edm::Handle<LumiSummary> lumiSummary;
  lumiBlock.getByLabel("lumiProducer", lumiSummary);

  edm::Handle<LumiSummaryRunHeader> lumiSummaryRH;
  lumiBlock.getRun().getByLabel("lumiProducer", lumiSummaryRH);

  MyPerLumiInfo l;
  l.lsnum=lumiBlock.id().luminosityBlock();

  //
  //collect lumi. 
  //
  l.deadcount=lumiSummary->deadcount();
  l.intglumi=lumiSummary->avgInsDelLumi()*93.244;
  l.livefraction=lumiSummary->liveFrac();
  
  *log_<<"====== Lumi Section "<<lumiBlock.id().luminosityBlock()<<" ======\n";
  *log_<<"\t Luminosity "<<l.intglumi<<"\n";
  *log_<<"\t Dead count "<<l.deadcount<<"\n";
  *log_<<"\t Deadtime corrected Luminosity "<<l.intglumi*l.livefraction<<"\n";

  //
  //print correlated hlt-l1 info, only if you ask
  //
  if(showTrgInfo_){
    std::map<std::string,hltPerPathInfo>::iterator hltit;
    std::map<std::string,hltPerPathInfo>::iterator hltitBeg=hltmap_.begin();
    std::map<std::string,hltPerPathInfo>::iterator hltitEnd=hltmap_.end();
    
    typedef std::pair< std::multimap<std::string,std::string>::iterator,std::multimap<std::string,std::string>::iterator > TRGMAPIT;
    unsigned int c=0;
    for(hltit=hltitBeg;hltit!=hltitEnd;++hltit){
      std::string hltname=hltit->first;
      *log_<<c<<" HLT path  "<<hltname<<" , prescale : "<<hltit->second.prescale<<"\n";
      TRGMAPIT ppp;
      ppp=trgpathMmap_.equal_range(hltname);
      if(ppp.first==ppp.second){
        *log_<<"    no L1\n";
      }
      for(std::multimap<std::string,std::string>::iterator mit=ppp.first; mit!=ppp.second; ++mit){
        std::string l1name=mit->second;
        *log_<<"    L1 name : "<<l1name;
        LumiSummary::L1 l1result = lumiSummary->l1info(lumiSummaryRH->getL1Index(l1name));
        *log_<<" prescale : "<<l1result.prescale<<"\n";
        *log_<<"\n";
      }
      ++c;
    }
  }
  //
  //accumulate hlt counts. Absent for now
  //
  //
  //accumulate l1 counts
  //
  size_t n=lumiSummary->nTriggerLine();
  for(size_t i=0;i<n;++i){
    std::string l1bitname = lumiSummaryRH->getL1Name(lumiSummary->l1info(i).triggernameidx);
    l1PerBitInfo t;
    if(currentlumi_==0){
      t.prescale=lumiSummary->l1info(i).prescale;
      l1map_.insert(std::make_pair(l1bitname,t));
    }
  }
  
  perrunlumiinfo_.push_back(l);

  ++currentlumi_;
}
 
// -----------------------------------------------------------------
void LumiCalculator::endRun(edm::Run const& run, edm::EventSetup const& c){
  //std::cout<<"valid trigger lines "<<trgpathMmap_.size()<<std::endl;
  //std::cout<<"total lumi lines "<<perrunlumiinfo_.size()<<std::endl;
  std::vector<MyPerLumiInfo>::const_iterator lumiIt;
  std::vector<MyPerLumiInfo>::const_iterator lumiItBeg=perrunlumiinfo_.begin();
  std::vector<MyPerLumiInfo>::const_iterator lumiItEnd=perrunlumiinfo_.end(); 
  float recorded=0.0;
  
  *log_<<"================ Run Summary "<<run.run()<<"================\n";
  for(lumiIt=lumiItBeg;lumiIt!=lumiItEnd;++lumiIt){//loop over LS
    recorded += lumiIt->intglumi*lumiIt->livefraction;  
  }
  *log_<<"  CMS Recorded Lumi (e+27cm^-2) : "<<recorded<<"\n";
  *log_<<"  Effective Lumi (e+27cm^-2) per trigger path: "<<"\n\n";
  std::multimap<std::string,std::string>::iterator it;
  std::multimap<std::string,std::string>::iterator itBeg=trgpathMmap_.begin();
  std::multimap<std::string,std::string>::iterator itEnd=trgpathMmap_.end();
  unsigned int cc=0;
  for(it=itBeg;it!=itEnd;++it){
    *log_<<"  "<<cc<<"  "<<it->first<<" - "<<it->second<<" : ";
    ++cc;
    std::map<std::string,hltPerPathInfo>::const_iterator hltIt=hltmap_.find(it->first);
    if( hltIt==hltmap_.end() ){
      std::cout<<"HLT path "<<it->first<<" not found"<<std::endl;
      *log_<<"\n";
      continue;
    }
    std::map<std::string,l1PerBitInfo>::const_iterator l1It=l1map_.find(it->second);
    if( l1It==l1map_.end() ){
      std::cout<<"L1 bit "<<it->second<<" not found"<<std::endl;
      *log_<<"\n";
      continue;
    }
    unsigned int hltprescale=hltIt->second.prescale;
    unsigned int l1prescale=l1It->second.prescale;
    if( hltprescale!=0 && l1prescale!=0 ){
      float effectiveLumi=recorded/(hltprescale*l1prescale);
      *log_<<effectiveLumi<<"\n";
    }else{
      *log_<<"0 prescale exception\n";
      continue;
    }
    *log_<<"\n"; 
  }
}


// -----------------------------------------------------------------
void LumiCalculator::endJob(){
}

std::vector<std::string>
LumiCalculator::splitpathstr(const std::string& strValue,const std::string separator){
  std::vector<std::string> vecstrResult;
  boost::regex re(separator);
  boost::sregex_token_iterator p(strValue.begin(),strValue.end(),re,-1);
  boost::sregex_token_iterator end;
  while(p!=end){
    vecstrResult.push_back(*p++);
  }
  return vecstrResult;
}

DEFINE_FWK_MODULE(LumiCalculator);
#endif