PomwigHadronizer.h

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#ifndef gen_PomwigHadronizer_h
#define gen_PomwigHadronizer_h

#include "FWCore/ParameterSet/interface/ParameterSetfwd.h"

#include "GeneratorInterface/Core/interface/BaseHadronizer.h"
#include "GeneratorInterface/Core/interface/ParameterCollector.h"
#include "GeneratorInterface/Herwig6Interface/interface/Herwig6Instance.h"

#include <HepMC/IO_HERWIG.h>

#include <string>
#include <vector>

namespace CLHEP {
  class HepRandomEngine;
}

namespace gen {
  class PomwigHadronizer : public gen::BaseHadronizer, public gen::Herwig6Instance {
  public:
    PomwigHadronizer(const edm::ParameterSet& params);
    ~PomwigHadronizer() override;

    bool readSettings(int);
    bool initializeForInternalPartons();
    bool initializeForExternalPartons();

    bool declareStableParticles(const std::vector<int>& pdgIds);
    bool declareSpecialSettings(const std::vector<std::string>&) { return true; }
    void statistics();

    bool generatePartonsAndHadronize();
    bool hadronize();
    bool decay();
    bool residualDecay();
    void finalizeEvent();

    const char* classname() const { return "PomwigHadronizer"; }

  private:
    void doSetRandomEngine(CLHEP::HepRandomEngine* v) override;
    std::vector<std::string> const& doSharedResources() const override { return theSharedResources; }

    void clear();
    bool initializeDPDF();

    static const std::vector<std::string> theSharedResources;

    bool needClear;

    gen::ParameterCollector parameters;
    int herwigVerbosity;
    int hepmcVerbosity;
    int maxEventsToPrint;
    bool printCards;

    double comEnergy;
    double survivalProbability;
    int diffTopology;
    int h1fit;

    bool useJimmy;
    bool doMPInteraction;
    int numTrials;

    bool doPDGConvert;

    HepMC::IO_HERWIG conv;
  };
}  // namespace gen
#endif