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antoniov |
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#include "FWCore/Framework/interface/EDProducer.h"
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#include "FWCore/ParameterSet/interface/ParameterSet.h"
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#include <vector>
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#include <string>
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class HepMCFileReader;
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namespace HepMC{
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class GenEvent;
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}
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class MCFileReader : public edm::EDProducer {
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public:
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MCFileReader(const edm::ParameterSet &);
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virtual ~MCFileReader();
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private:
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void produce(edm::Event&, const edm::EventSetup&);
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void endRun(edm::Run&, edm::EventSetup const&);
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std::vector<std::string> fileNames_;
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HepMCFileReader *reader_;
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HepMC::GenEvent *evt_;
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};
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#include "FWCore/Framework/interface/Event.h"
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#include "FWCore/Framework/interface/Run.h"
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#include "FWCore/MessageLogger/interface/MessageLogger.h"
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#include "FWCore/Framework/interface/MakerMacros.h"
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#include "ForwardAnalysis/Utilities/interface/HepMCFileReader.h"
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#include "SimDataFormats/GeneratorProducts/interface/HepMCProduct.h"
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#include "SimDataFormats/GeneratorProducts/interface/GenRunInfoProduct.h"
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#include "SimDataFormats/GeneratorProducts/interface/GenEventInfoProduct.h"
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using namespace edm;
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using namespace std;
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MCFileReader::MCFileReader(const ParameterSet & pset):
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fileNames_( pset.getUntrackedParameter<vector<string> >("fileNames") ),
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reader_(HepMCFileReader::instance()), evt_(0)
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{
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LogInfo("MCFileReader") << "Reading HepMC file:" << fileNames_[0];
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string fileName = fileNames_[0];
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// strip the file:
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if (fileName.find("file:") == 0){
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fileName.erase(0,5);
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}
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reader_->initialize(fileName);
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produces<HepMCProduct>();
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produces<GenEventInfoProduct>();
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produces<GenRunInfoProduct, edm::InRun>();
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}
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MCFileReader::~MCFileReader(){}
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void MCFileReader::produce(Event & event, const EventSetup& setup){
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auto_ptr<HepMCProduct> bare_product(new HepMCProduct());
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LogInfo("MCFileSource") << "Start Reading";
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evt_ = reader_->fillCurrentEventData();
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if (evt_ == 0) return;
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bare_product->addHepMCData(evt_);
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event.put(bare_product);
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auto_ptr<GenEventInfoProduct> genEventInfo( new GenEventInfoProduct(evt_) );
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event.put(genEventInfo);
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}
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void MCFileReader::endRun(Run& run, EventSetup const& setup) {
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auto_ptr<GenRunInfoProduct> genRunInfoProd( new GenRunInfoProduct() );
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genRunInfoProd->setInternalXSec(-1.);
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genRunInfoProd->setFilterEfficiency(-1.);
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genRunInfoProd->setExternalXSecLO(-1.);
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genRunInfoProd->setExternalXSecNLO(-1.);
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run.put(genRunInfoProd);
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}
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DEFINE_FWK_MODULE(MCFileReader);
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