deserialisation.h

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#ifndef DESERIALISATION_H
#define DESERIALISATION_H

#include <istream>

#include "core/Command.h"
#include "core/TaskHandler.h"

#include "LineString.h"

void read_key(const LineString& key, std::istream& in);

std::string read_value(std::istream& in);

template <typename value_type>
value_type deserialise_scalar_value(const LineString& key, std::istream& in)
{
    // Read key
    read_key(key, in);

    // Read value
    auto value_string = read_value(in);

    // Read out LineString
    value_type val;
    std::istringstream isstr(value_string);
    isstr >> val;

    // Check input stream
    if (!isstr)
    {
        std::string error_msg("deserialisation failed, ");
        error_msg += "could not extract value";
        std::runtime_error e(error_msg);
        throw e;
    }

    return val;
}

template <>
bool deserialise_scalar_value(const LineString& key, std::istream& in);

template <>
std::string deserialise_scalar_value(const LineString& key, std::istream& in);

template <>
Command deserialise_scalar_value(const LineString& key, std::istream& in);

template <>
TaskHandler deserialise_scalar_value(const LineString& key, std::istream& in);

std::istream& operator>>(std::istream& in, LineString& line_string);

#endif // DESERIALISATION_H