HistogramMerger.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef HDF5Utils_HistogramMerger_H
#define HDF5Utils_HistogramMerger_H
 
#include "H5Cpp.h"
 
#include <map>
#include <memory>
#include <string>
 
namespace H5Utils::hist {
 
  class IHistogram;  // forward declaration — full type in .cxx

  class HistogramMerger {
  public:
    ~HistogramMerger();

    void add(const std::string& path, const H5::Group& src);

    void write(H5::Group& root) const;
 
  private:
    std::map<std::string, std::unique_ptr<IHistogram>> m_hists;

    std::unique_ptr<IHistogram> make(const H5::Group& src);
  };
 
} //> end namespace H5Utils::hist
 
#endif //> !HDF5Utils_HistogramMerger_H