RNTupleCnv.h

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#ifndef ROOTHISTCNV_RNTUPLECNV_H
#define ROOTHISTCNV_RNTUPLECNV_H 1

// Include files
#include "RConverter.h"

// Forward declarations
class ISvcLocator;
class INTupleItem;
class INTupleSvc;
class INTuple;
class TTree;

namespace RootHistCnv {

  class RNTupleCnv : public RConverter {
  public:
    StatusCode initialize() override;
    StatusCode finalize() override;

    StatusCode createObj( IOpaqueAddress* pAddr, DataObject*& refpObj ) override;
    StatusCode updateObj( IOpaqueAddress* pAddr, DataObject* refpObj ) override;
    StatusCode createRep( DataObject* pObj, IOpaqueAddress*& refpAddr ) override;
    StatusCode updateRep( IOpaqueAddress* pAddr, DataObject* pObj ) override;

  protected:
    RNTupleCnv( ISvcLocator* svc, const CLID& clid );

    virtual StatusCode load( TTree* tree, INTuple*& refpObj ) = 0;
    virtual StatusCode book( const std::string& desc, INTuple* pObj, TTree*& tree ) = 0;
    virtual StatusCode writeData( TTree* rtree, INTuple* pObj ) = 0;
    virtual StatusCode readData( TTree* rtree, INTuple* pObj, long ievt ) = 0;

  protected:
    SmartIF<INTupleSvc> m_ntupleSvc;

    virtual std::string rootVarType( int );
  };

  template <class TYP>
  INTupleItem* createNTupleItem( std::string itemName, std::string blockName, std::string indexName, int indexRange,
                                 int arraySize, TYP minimum, TYP maximum, INTuple* tuple );

  bool parseName( const std::string& full, std::string& blk, std::string& var );

} // namespace RootHistCnv

#endif // RootHistCnv_RNTupleCnv_H