FLSFilter_module.cc

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////////////////////////////////////////////////////////////////////////
// \file    FLSFilter_module.cc
// \brief   Filter to remove events without any simulate FLS hits
//            made particularly for simulated FD rock in prod5
// \author  Andrew Sutton - ats2mk@virginia.edu
////////////////////////////////////////////////////////////////////////

// NOvA includes
#include "Simulation/FLSHitList.h"

// Framework includes
#include "art/Framework/Core/EDFilter.h"
#include "art/Framework/Core/ModuleMacros.h"
#include "art/Framework/Principal/Event.h"
#include "art/Framework/Principal/Handle.h"
#include "art/Framework/Principal/Run.h"
#include "art/Framework/Principal/SubRun.h"
#include "canvas/Utilities/InputTag.h"
#include "fhiclcpp/ParameterSet.h"
#include "messagefacility/MessageLogger/MessageLogger.h"

#include <memory>

namespace filter 
{
  class FLSFilter;

  class FLSFilter : public art::EDFilter {
  public:
    explicit FLSFilter(const fhicl::ParameterSet & pset);

    // Plugins should not be copied or assigned.
    FLSFilter(FLSFilter const &) = delete;
    FLSFilter(FLSFilter &&) = delete;
    FLSFilter & operator = (FLSFilter const &) = delete;
    FLSFilter & operator = (FLSFilter &&) = delete;

    // Required functions.
    bool filter(art::Event & e) override;

  private:
    std::string fGeantLabel;
  };

  //......................................................................
  FLSFilter::FLSFilter(fhicl::ParameterSet const & pset) :
    fGeantLabel(pset.get< std::string >("GeantLabel"))
  {
  }


  //......................................................................
  bool FLSFilter::filter(art::Event & evt)
  {
    art::Handle< std::vector<sim::FLSHitList> >  hitlist;
    evt.getByLabel(fGeantLabel, hitlist);
    return !(hitlist->empty());
  }

  DEFINE_ART_MODULE(FLSFilter)
} // namespace