custom_array.hpp

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#ifndef CHIHAYA_CUSTOM_ARRAY_HPP
#define CHIHAYA_CUSTOM_ARRAY_HPP
 
#include "H5Cpp.h"
#include "ritsuko/ritsuko.hpp"
 
#include <vector>
#include <stdexcept>
#include <exception>
#include <cstdint>
#include <algorithm>
 
#include "utils_public.hpp"
#include "utils_type.hpp"
#include "utils_misc.hpp"
#include "utils_dimensions.hpp"
 
namespace chihaya {
 
inline ArrayDetails validate_minimal_array(const H5::Group& group, const ritsuko::Version& version, [[maybe_unused]] const Options& options) {
    ArrayDetails output;
 
    try {
        auto dhandle = group.openDataSet("dimensions");
        auto dspace = dhandle.getSpace();
        if (dspace.getSimpleExtentNdims() != 1) {
            throw std::runtime_error("expected a 1-dimensional dataset");
        }
        hsize_t len;
        dspace.getSimpleExtentDims(&len);
 
        if (version.lt(1, 1, 0)) {
            output.dimensions = load_non_negative_integer_vector_0_99<std::size_t>(dhandle, len);
        } else {
            if (ritsuko::hdf5::exceeds_integer_limit(dhandle, 64, false)) {
                throw std::runtime_error("datatype should fit in a 64-bit unsigned integer");
            }
            output.dimensions = load_dimensions_from_uint64_contents<std::size_t>(dhandle, len);
        }
    } catch (...) {
        std::throw_with_nested(std::runtime_error("failed to validate 'dimensions'"));
    }
 
    try {
        auto type = read_scalar_string_dataset(group.openDataSet("type"));
        if (type == "BOOLEAN") {
            output.type = BOOLEAN;
        } else if (type == "INTEGER") {
            output.type = INTEGER;
        } else if (type == "FLOAT") {
            output.type = FLOAT;
        } else if (type == "STRING") {
            output.type = STRING;
        } else {
            throw std::runtime_error("unknown type '" + type + "'");
        }
    } catch (...) {
        std::throw_with_nested(std::runtime_error("failed to validate 'type'"));
    }
 
    return output;
}
inline ArrayDetails validate_custom_array(const H5::Group& group, const ritsuko::Version& version, const Options& options) {
    return validate_minimal_array(group, version, options);
}
 
}
 
#endif