FlexibleKFFittingSmootherESProducer.cc

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#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/Framework/interface/ESProducer.h"
 
#include "FWCore/Framework/interface/ESProducer.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/ParameterSet/interface/ParameterSetDescription.h"
#include "FWCore/ParameterSet/interface/ConfigurationDescriptions.h"
 
#include "TrackingTools/TrackFitters/interface/TrajectoryFitterRecord.h"
 
#include "TrackingTools/TrackFitters/interface/TrajectoryFitter.h"
 
namespace {
 
  class FlexibleKFFittingSmoother final : public TrajectoryFitter {
  public:
    ~FlexibleKFFittingSmoother() override {}
 
  private:
    FlexibleKFFittingSmoother(const TrajectoryFitter& standardFitter, const TrajectoryFitter& looperFitter)
        : theStandardFitter(standardFitter.clone()), theLooperFitter(looperFitter.clone()) {}
 
    Trajectory fitOne(const Trajectory& t, fitType type) const override { return fitter(type)->fitOne(t, type); }
 
    Trajectory fitOne(const TrajectorySeed& aSeed,
                      const RecHitContainer& hits,
                      const TrajectoryStateOnSurface& firstPredTsos,
                      fitType type) const override {
      return fitter(type)->fitOne(aSeed, hits, firstPredTsos, type);
    }
 
    Trajectory fitOne(const TrajectorySeed& aSeed, const RecHitContainer& hits, fitType type) const override {
      return fitter(type)->fitOne(aSeed, hits, type);
    }
 
    std::unique_ptr<TrajectoryFitter> clone() const override {
      return std::unique_ptr<TrajectoryFitter>(new FlexibleKFFittingSmoother(*theStandardFitter, *theLooperFitter));
    }
 
    // FIXME a prototype:  final inplementaiton may differ
    void setHitCloner(TkCloner const* hc) override {
      theStandardFitter->setHitCloner(hc);
      theLooperFitter->setHitCloner(hc);
    }
 
  private:
    const TrajectoryFitter* fitter(fitType type) const {
      return (type == standard) ? theStandardFitter.get() : theLooperFitter.get();
    }
 
    const std::unique_ptr<TrajectoryFitter> theStandardFitter;
    const std::unique_ptr<TrajectoryFitter> theLooperFitter;
 
    friend class FlexibleKFFittingSmootherESProducer;
  };
 
  class FlexibleKFFittingSmootherESProducer : public edm::ESProducer {
  public:
    FlexibleKFFittingSmootherESProducer(const edm::ParameterSet& p) {
      setWhatProduced(this, p.getParameter<std::string>("ComponentName"))
          .setConsumes(standardToken_, edm::ESInputTag("", p.getParameter<std::string>("standardFitter")))
          .setConsumes(looperToken_, edm::ESInputTag("", p.getParameter<std::string>("looperFitter")));
    }
 
    static void fillDescriptions(edm::ConfigurationDescriptions& descriptions) {
      edm::ParameterSetDescription desc;
      desc.add<std::string>("ComponentName", "FlexibleKFFittingSmoother");
      desc.add<std::string>("standardFitter", "KFFittingSmootherWithOutliersRejectionAndRK");
      desc.add<std::string>("looperFitter", "LooperFittingSmoother");
      descriptions.add("FlexibleKFFittingSmoother", desc);
    }
 
    std::unique_ptr<TrajectoryFitter> produce(const TrajectoryFitterRecord& iRecord) {
      return std::unique_ptr<TrajectoryFitter>(
          new FlexibleKFFittingSmoother(iRecord.get(standardToken_), iRecord.get(looperToken_)));
    }
 
  private:
    edm::ESGetToken<TrajectoryFitter, TrajectoryFitterRecord> standardToken_;
    edm::ESGetToken<TrajectoryFitter, TrajectoryFitterRecord> looperToken_;
  };
 
}  // namespace
 
#include "FWCore/Framework/interface/ModuleFactory.h"
 
DEFINE_FWK_EVENTSETUP_MODULE(FlexibleKFFittingSmootherESProducer);