/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_6_2_5/src/L1Trigger/L1GctAnalyzer/src/compareBitCounts.cc

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#include "L1Trigger/L1GctAnalyzer/interface/compareBitCounts.h"
#include "DataFormats/L1CaloTrigger/interface/L1CaloCollections.h"
#include "DataFormats/L1GlobalCaloTrigger/interface/L1GctCollections.h"

#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/ParameterSet/interface/ParameterSet.h"

#include "FWCore/Utilities/interface/InputTag.h"

#include "FWCore/ServiceRegistry/interface/Service.h" // Framework services
#include "CommonTools/UtilAlgos/interface/TFileService.h" // Framework service for histograms

compareBitCounts::compareBitCounts(const edm::Handle<L1GctHFBitCountsCollection> &data, const edm::Handle<L1GctHFBitCountsCollection> &emu, const GctErrorAnalyzerMBxInfo &mbxparams) :
  data_(data),
  emu_(emu),
  mbxparams_(mbxparams)
{

}

compareBitCounts::~compareBitCounts() {
  //anything need to be destructed?
}

bool compareBitCounts::doCompare(TH1I *errorFlag_hist_) {

  bool errorFlag=0;
  
  for(unsigned int i=0;i < data_->size(); i++) {
    //check that we are looking at the triggered Bx in the data
    if(data_->at(i).bx() != mbxparams_.GCTTrigBx) continue;

    for(unsigned int j=0; j < emu_->size(); j++) {
      //now check that we are looking at the corresponding triggered Bx in the emulator
      if(emu_->at(j).bx() != mbxparams_.EmuTrigBx) continue;
      
      for(unsigned int k=0; k < NUM_GCT_RINGS; k++) {
        //now that we are on the right Bxs for data and emulator, check all the ring bitcounts match
        if(data_->at(i).bitCount(k) == emu_->at(j).bitCount(k)) {
          errorFlag_hist_->Fill(0); //i.e. the two match
        } else {
          errorFlag_hist_->Fill(1);
          errorFlag=1;
        }
      }
    }
  }
  
  return errorFlag;
  
}