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 NTUPLEINFO;
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 );

    ~RNTupleCnv() override = default;

    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(NTUPLEINFO& tags, long i, INTuple* tuple, TYP minimum, TYP maximum, long& size);

  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