87 lines
3.1 KiB
C++
87 lines
3.1 KiB
C++
#include "server/api/parameters_parser.hpp"
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#include "server/api/route_parameters_grammar.hpp"
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#include "server/api/table_parameter_grammar.hpp"
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#include "server/api/nearest_parameter_grammar.hpp"
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#include "server/api/trip_parameter_grammar.hpp"
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#include "server/api/match_parameter_grammar.hpp"
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#include "server/api/tile_parameter_grammar.hpp"
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namespace osrm
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{
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namespace server
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{
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namespace api
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{
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namespace detail
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{
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template <typename T>
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using is_grammar_t = std::integral_constant<bool,
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std::is_base_of<BaseParametersGrammar, T>::value ||
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std::is_same<TileParametersGrammar, T>::value>;
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template <typename ParameterT,
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typename GrammarT,
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typename std::enable_if<detail::is_parameter_t<ParameterT>::value, int>::type = 0,
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typename std::enable_if<detail::is_grammar_t<GrammarT>::value, int>::type = 0>
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boost::optional<ParameterT> parseParameters(std::string::iterator &iter, std::string::iterator end)
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{
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GrammarT grammar;
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const auto result = boost::spirit::qi::parse(iter, end, grammar);
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boost::optional<ParameterT> parameters;
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if (result && iter == end)
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parameters = std::move(grammar.parameters);
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return parameters;
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}
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} // ns detail
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template <>
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boost::optional<engine::api::RouteParameters> parseParameters(std::string::iterator &iter,
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std::string::iterator end)
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{
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return detail::parseParameters<engine::api::RouteParameters, RouteParametersGrammar>(iter, end);
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}
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template <>
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boost::optional<engine::api::TableParameters> parseParameters(std::string::iterator &iter,
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std::string::iterator end)
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{
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return detail::parseParameters<engine::api::TableParameters, TableParametersGrammar>(iter, end);
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}
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template <>
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boost::optional<engine::api::NearestParameters> parseParameters(std::string::iterator &iter,
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std::string::iterator end)
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{
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return detail::parseParameters<engine::api::NearestParameters, NearestParametersGrammar>(iter,
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end);
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}
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template <>
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boost::optional<engine::api::TripParameters> parseParameters(std::string::iterator &iter,
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std::string::iterator end)
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{
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return detail::parseParameters<engine::api::TripParameters, TripParametersGrammar>(iter, end);
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}
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template <>
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boost::optional<engine::api::MatchParameters> parseParameters(std::string::iterator &iter,
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std::string::iterator end)
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{
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return detail::parseParameters<engine::api::MatchParameters, MatchParametersGrammar>(iter, end);
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}
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template <>
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boost::optional<engine::api::TileParameters> parseParameters(std::string::iterator &iter,
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std::string::iterator end)
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{
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return detail::parseParameters<engine::api::TileParameters, TileParametersGrammar>(iter, end);
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}
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} // ns api
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} // ns server
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} // ns osrm
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