TrainProcessor.h

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#ifndef PhysicsTools_MVATrainer_TrainProcessor_h
#define PhysicsTools_MVATrainer_TrainProcessor_h

#include <vector>
#include <string>

#include <boost/version.hpp>
#include <boost/filesystem.hpp>

#include <xercesc/dom/DOM.hpp>

#include "FWCore/PluginManager/interface/PluginFactory.h"

#include "PhysicsTools/MVAComputer/interface/AtomicId.h"
#include "PhysicsTools/MVAComputer/interface/Variable.h"
#include "PhysicsTools/MVAComputer/interface/Calibration.h"
#include "PhysicsTools/MVAComputer/interface/ProcessRegistry.h"

#include "PhysicsTools/MVATrainer/interface/Source.h"
#include "PhysicsTools/MVATrainer/interface/TrainerMonitoring.h"

class TH1F;

namespace PhysicsTools {

class MVATrainer;

class TrainProcessor : public Source,
    public ProcessRegistry<TrainProcessor, AtomicId, MVATrainer>::Factory {
    public:
    template<typename Instance_t>
    struct Registry {
        typedef typename ProcessRegistry<
            TrainProcessor,
            AtomicId,
            MVATrainer
        >::Registry<Instance_t, AtomicId> Type;
    };

    typedef TrainerMonitoring::Module Monitoring;

    TrainProcessor(const char *name,
                   const AtomicId *id,
                   MVATrainer *trainer);
    virtual ~TrainProcessor();

    virtual Variable::Flags getDefaultFlags() const
    { return Variable::FLAG_ALL; }

    virtual void
    configure(XERCES_CPP_NAMESPACE_QUALIFIER DOMElement *config) {}

    virtual void
    passFlags(const std::vector<Variable::Flags> &flags) {}

    virtual Calibration::VarProcessor *getCalibration() const { return 0; }

    void doTrainBegin();
    void doTrainData(const std::vector<double> *values,
                     bool target, double weight, bool train, bool test);
    void doTrainEnd();

    virtual bool load() { return true; }
    virtual void save() {}
    virtual void cleanup() {}

    inline const char *getId() const { return name.c_str(); }

    struct Dummy {};
    typedef edmplugin::PluginFactory<Dummy*()> PluginFactory;

    protected:
    virtual void trainBegin() {}
    virtual void trainData(const std::vector<double> *values,
                           bool target, double weight) {}
    virtual void testData(const std::vector<double> *values,
                          bool target, double weight, bool trainedOn) {}
    virtual void trainEnd() { trained = true; }

    virtual void *requestObject(const std::string &name) const
    { return 0; }

    inline bool exists(const std::string &name)
    { return boost::filesystem::exists(name.c_str()); }

    std::string     name;
    MVATrainer      *trainer;
    Monitoring      *monitoring;

    private:
    struct SigBkg {
        bool        sameBinning;
        double      min;
        double      max;
        unsigned long   entries[2];
        double      underflow[2];
        double      overflow[2];
        TH1F        *histo[2];
    };
        
    std::vector<SigBkg> monHistos;
    Monitoring      *monModule;
};

template<>
TrainProcessor *ProcessRegistry<TrainProcessor, AtomicId,
                                MVATrainer>::Factory::create(
            const char*, const AtomicId*, MVATrainer*);

} // namespace PhysicsTools

#define MVA_TRAINER_DEFINE_PLUGIN(T) \
    DEFINE_EDM_PLUGIN(::PhysicsTools::TrainProcessor::PluginFactory, \
                      ::PhysicsTools::TrainProcessor::Dummy, \
                      "TrainProcessor/" #T)

#endif // PhysicsTools_MVATrainer_TrainProcessor_h