/data/refman/pasoursint/CMSSW_4_1_8_patch12/src/PhysicsTools/MVAComputer/interface/MVAComputerCache.h

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#ifndef PhysicsTools_MVAComputer_MVAComputerCache_h
#define PhysicsTools_MVAComputer_MVAComputerCache_h
// -*- C++ -*-
//
// Package:     MVAComputerCache
// Class  :     MVAComputerCache
//

//
// Author:      Christophe Saout <christophe.saout@cern.ch>
// Created:     Sat Feb 23 15:38 CEST 2007
// $Id: MVAComputerCache.h,v 1.1 2008/02/23 16:35:17 saout Exp $
//

#include <memory>

#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "PhysicsTools/MVAComputer/interface/Calibration.h"
#include "PhysicsTools/MVAComputer/interface/MVAComputer.h"

namespace PhysicsTools {

class MVAComputerCache {
    public:
        MVAComputerCache();
        ~MVAComputerCache();

        bool update(const Calibration::MVAComputer *computer);
        bool update(const Calibration::MVAComputerContainer *container,
                    const char *calib);

        template<class T>
        bool update(const edm::EventSetup &es)
        {
                edm::ESHandle<Calibration::MVAComputer> handle;
                es.get<T>().get(handle);
                return update(handle.product());
        }

        template<class T>
        bool update(const edm::EventSetup &es, const char *calib)
        {
                edm::ESHandle<Calibration::MVAComputerContainer> handle;
                es.get<T>().get(handle);
                return update(handle.product(), calib);
        }

        template<class T>
        bool update(const char *label, const edm::EventSetup &es)
        {
                edm::ESHandle<Calibration::MVAComputer> handle;
                es.get<T>().get(label, handle);
                return update(handle.product());
        }

        template<class T>
        bool update(const char *label, const edm::EventSetup &es,
                    const char *calib)
        {
                edm::ESHandle<Calibration::MVAComputerContainer> handle;
                es.get<T>().get(label, handle);
                return update(handle.product(), calib);
        }

        operator bool() const { return computer.get(); }

        MVAComputer &operator * () { return *computer; }
        const MVAComputer &operator * () const { return *computer; }

        MVAComputer *operator -> () { return computer.get(); }
        const MVAComputer *operator -> () const { return computer.get(); }

        MVAComputer *get() { return computer.get(); }
        const MVAComputer *get() const { return computer.get(); }

        std::auto_ptr<MVAComputer> release();

        void reset() { computer.reset(); }

    private:
        Calibration::MVAComputerContainer::CacheId      containerCacheId;
        Calibration::MVAComputer::CacheId               computerCacheId;
        std::auto_ptr<MVAComputer>                      computer;
};

} // namespace PhysicsTools

#endif // PhysicsTools_MVAComputer_MVAComputerCache_h