/data/refman/pasoursint/CMSSW_5_3_0/src/PhysicsTools/MVATrainer/interface/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