/data/refman/pasoursint/CMSSW_4_1_8_patch12/src/SimMuon/DTDigitizer/src/DTDigiReader.cc

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#ifndef SimMuon_DTDigiReader_h
#define SimMuon_DTDigiReader_h

#include <FWCore/Framework/interface/EDAnalyzer.h>
#include <FWCore/Framework/interface/Event.h>
#include "FWCore/ParameterSet/interface/ParameterSet.h"

#include "SimDataFormats/TrackingHit/interface/PSimHitContainer.h"
#include "SimDataFormats/TrackingHit/interface/PSimHit.h"

#include "DataFormats/MuonDetId/interface/DTWireId.h"
#include <DataFormats/DTDigi/interface/DTDigiCollection.h>

#include <iostream>

#include "TH1F.h"  //FIXME
#include "TFile.h"

using namespace edm;
using namespace std;

class DTDigiReader: public EDAnalyzer{
  
public:
  explicit DTDigiReader(const ParameterSet& pset){
    file = new TFile("DTDigiPlots.root","RECREATE");
    file->cd();
    DigiTimeBox = new TH1F("DigiTimeBox","Digi Time Box",2048,0,1600);
    DigiTimeBoxW0 = new TH1F("DigiTimeBoxW0","Digi Time Box W0",2000,0,1600);
    DigiTimeBoxW1 = new TH1F("DigiTimeBoxW1","Digi Time Box W1",2000,0,1600);
    DigiTimeBoxW2 = new TH1F("DigiTimeBoxW2","Digi Time Box W2",2000,0,1600);
    if(file->IsOpen()) cout<<"file open!"<<endl;
    else cout<<"*** Error in opening file ***"<<endl;
    label = pset.getUntrackedParameter<string>("label");
  }
  
  virtual ~DTDigiReader(){
    file->cd();
    DigiTimeBox->Write();
    DigiTimeBoxW0->Write();
    DigiTimeBoxW1->Write();
    DigiTimeBoxW2->Write();
    file->Close();
    //    delete file;
    // delete DigiTimeBox;
  }
  
  void analyze(const Event & event, const EventSetup& eventSetup){
    cout << "--- Run: " << event.id().run()
         << " Event: " << event.id().event() << endl;
    
    Handle<DTDigiCollection> dtDigis;
    event.getByLabel(label, dtDigis);
     // event.getByLabel("MuonDTDigis", dtDigis);
    Handle<PSimHitContainer> simHits; 
    event.getByLabel("g4SimHits","MuonDTHits",simHits);    


    DTDigiCollection::DigiRangeIterator detUnitIt;
    for (detUnitIt=dtDigis->begin();
         detUnitIt!=dtDigis->end();
         ++detUnitIt){
      
      const DTLayerId& id = (*detUnitIt).first;
      const DTDigiCollection::Range& range = (*detUnitIt).second;
      
      // DTLayerId print-out
      cout<<"--------------"<<endl;
      cout<<"id: "<<id;
      
      // Loop over the digis of this DetUnit
      for (DTDigiCollection::const_iterator digiIt = range.first;
           digiIt!=range.second;
           ++digiIt){
        //      if((*digiIt).time()<703 &&(*digiIt).time()>699) {
          cout<<" Wire: "<<(*digiIt).wire()<<endl
              <<" digi time (ns): "<<(*digiIt).time()<<endl;
          
          for(vector<PSimHit>::const_iterator simHit = simHits->begin();
              simHit != simHits->end(); simHit++){
            DTWireId wireId((*simHit).detUnitId());
            if (wireId.layerId()==id && abs((*simHit).particleType())==13){
              cout<<"entry: "<<(*simHit).entryPoint()<<endl
                  <<"exit: "<<(*simHit).exitPoint()<<endl
                  <<"TOF: "<<(*simHit).timeOfFlight()<<endl;
            }
          }

          //    }

        if(id.layer()==3)
          DigiTimeBoxW0->Fill((*digiIt).time());
        else if(abs(id.superlayer())==1)
          DigiTimeBoxW1->Fill((*digiIt).time());
        else if(abs(id.superlayer())==2)
          DigiTimeBoxW2->Fill((*digiIt).time());
        else cout<<"Error"<<endl;
        DigiTimeBox->Fill((*digiIt).time());
        
      }// for digis in layer
    }// for layers
    cout<<"--------------"<<endl;
  }
  
private:
  string label;
  TH1F *DigiTimeBox;
  TH1F *DigiTimeBoxW0;
  TH1F *DigiTimeBoxW1;
  TH1F *DigiTimeBoxW2;
  TFile *file;
  
};

#endif