MHO_HDF5ConversionHelpers.hh

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#ifndef MHO_HDF5ConversionHelpers_HH__
#define MHO_HDF5ConversionHelpers_HH__
 
#include "MHO_ClassIdentity.hh"
#include "MHO_ExtensibleElement.hh"
#include "MHO_JSONHeaderWrapper.hh"
 
#include "MHO_Axis.hh"
#include "MHO_AxisPack.hh"
#include "MHO_ObjectTags.hh"
#include "MHO_ScalarContainer.hh"
#include "MHO_TableContainer.hh"
#include "MHO_Taggable.hh"
#include "MHO_VectorContainer.hh"
 
#include <sstream>
 
#include "hdf5.h"
#include "hdf5_hl.h"
 
#include "MHO_HDF5Attributes.hh"
#include "MHO_HDF5Datasets.hh"
#include "MHO_HDF5TypeCode.hh"
#include "MHO_NumpyTypeCode.hh"
 
namespace hops
{
 
inline void json_to_hdf5_attributes(const mho_json& j, hid_t parent_group)
{
    for(auto it = j.begin(); it != j.end(); ++it)
    {
        const std::string& key = it.key();
        const mho_json& value = it.value();
 
        if(value.is_object())
        {
            hid_t subgroup = H5Gcreate(parent_group, key.c_str(), H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
            json_to_hdf5_attributes(value, subgroup);
            H5Gclose(subgroup);
        }
        else if(value.is_array() && value.size() != 0)
        {
            if(!(value.begin()->is_object()))
            {
                make_attribute(key, value, parent_group);
            }
            else
            {
                hid_t array_group = H5Gcreate(parent_group, key.c_str(), H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
                int idx = 0;
                for(const auto& elem : value)
                {
                    std::string item_name = std::to_string(idx++);
                    hid_t item_group = H5Gcreate(array_group, item_name.c_str(), H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
                    json_to_hdf5_attributes(elem, item_group);
                    H5Gclose(item_group);
                }
                H5Gclose(array_group);
            }
        }
        else
        {
            make_attribute(key, value, parent_group);
        }
    }
}
 
} // namespace hops
 
#endif