miscellaneous.hpp

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#ifndef RITSUKO_MISCELLANEOUS_HPP
#define RITSUKO_MISCELLANEOUS_HPP
 
#include <string>
#include "H5Cpp.h"
 
#include "open.hpp"
#include "load_attribute.hpp"
#include "is_utf8_string.hpp"
#include "get_1d_length.hpp"
 
namespace ritsuko {
 
namespace hdf5 {
 
template<class H5Object_>
inline H5::Attribute open_scalar_attribute(const H5Object_& handle, const char* name) {
    auto attr = open_attribute(handle, name);
    if (!is_scalar(attr)) {
        throw std::runtime_error("expected '" + std::string(name) + "' attribute to be a scalar");
    }
    return attr;
}
 
template<class H5Object_>
std::string open_and_load_scalar_string_attribute(const H5Object_& handle, const char* name, bool utf8 = true) {
    auto attr = open_scalar_attribute(handle, name);
 
    if (utf8) {
        if (!is_utf8_string(attr)) {
            throw std::runtime_error("expected '" + std::string(name) + "' attribute to be a string with a UTF-8 compatible encoding");
        }
    } else {
        if (attr.getTypeClass() != H5T_STRING) {
            throw std::runtime_error("expected '" + std::string(name) + "' attribute to be a string");
        }
    }
 
    return load_scalar_string_attribute(attr);
}
 
}
 
}
 
#endif