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TrackInformationExtractor.h

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#ifndef SimG4Core_TrackInformationExtractor_H
#define SimG4Core_TrackInformationExtractor_H

#include "SimG4Core/Notification/interface/TrackInformation.h"
#include "SimG4Core/Notification/interface/SimG4Exception.h"

class G4Track;

class TrackInformationExtractor 
{
public:
    const TrackInformation & operator()(const G4Track & gtk) const;
    const TrackInformation & operator()(const G4Track * gtk) const { return operator()(*gtk); }
    TrackInformation & operator()(G4Track & gtk) const;
    TrackInformation & operator()(G4Track * gtk) const { return operator()(*gtk); }
private:
    void missing(const G4Track & gtk) const 
    { throw SimG4Exception("TrackInformationExtractor: G4Track has no TrackInformation"); }    
    void wrongType() const
    { throw SimG4Exception("User information in G4Track is not of TrackInformation type"); } 
};

#endif

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