osrm-backend/src/extractor/scripting_environment.cpp

185 lines
8.0 KiB
C++

#include "extractor/scripting_environment.hpp"
#include "extractor/extraction_helper_functions.hpp"
#include "extractor/extraction_node.hpp"
#include "extractor/extraction_way.hpp"
#include "extractor/internal_extractor_edge.hpp"
#include "extractor/external_memory_node.hpp"
#include "extractor/raster_source.hpp"
#include "extractor/profile_properties.hpp"
#include "util/lua_util.hpp"
#include "util/make_unique.hpp"
#include "util/exception.hpp"
#include "util/simple_logger.hpp"
#include "util/typedefs.hpp"
#include <luabind/tag_function.hpp>
#include <luabind/operator.hpp>
#include <osmium/osm.hpp>
#include <sstream>
namespace osrm
{
namespace extractor
{
namespace
{
// wrapper method as luabind doesn't automatically overload funcs w/ default parameters
template <class T>
auto get_value_by_key(T const &object, const char *key) -> decltype(object.get_value_by_key(key))
{
return object.get_value_by_key(key, "");
}
template <class T> double latToDouble(T const &object)
{
return static_cast<double>(util::toFloating(object.lat));
}
template <class T> double lonToDouble(T const &object)
{
return static_cast<double>(util::toFloating(object.lon));
}
// Error handler
int luaErrorCallback(lua_State *state)
{
std::string error_msg = lua_tostring(state, -1);
std::ostringstream error_stream;
error_stream << error_msg;
throw util::exception("ERROR occurred in profile script:\n" + error_stream.str());
}
}
ScriptingEnvironment::ScriptingEnvironment(const std::string &file_name) : file_name(file_name)
{
util::SimpleLogger().Write() << "Using script " << file_name;
}
void ScriptingEnvironment::InitContext(ScriptingEnvironment::Context &context)
{
typedef double (osmium::Location::*location_member_ptr_type)() const;
luabind::open(context.state);
// open utility libraries string library;
luaL_openlibs(context.state);
util::luaAddScriptFolderToLoadPath(context.state, file_name.c_str());
// Add our function to the state's global scope
luabind::module(context.state)
[luabind::def("durationIsValid", durationIsValid),
luabind::def("parseDuration", parseDuration),
luabind::class_<TravelMode>("mode")
.enum_("enums")[luabind::value("inaccessible", TRAVEL_MODE_INACCESSIBLE),
luabind::value("driving", TRAVEL_MODE_DRIVING),
luabind::value("cycling", TRAVEL_MODE_CYCLING),
luabind::value("walking", TRAVEL_MODE_WALKING),
luabind::value("ferry", TRAVEL_MODE_FERRY),
luabind::value("train", TRAVEL_MODE_TRAIN),
luabind::value("pushing_bike", TRAVEL_MODE_PUSHING_BIKE),
luabind::value("movable_bridge", TRAVEL_MODE_MOVABLE_BRIDGE),
luabind::value("steps_up", TRAVEL_MODE_STEPS_UP),
luabind::value("steps_down", TRAVEL_MODE_STEPS_DOWN),
luabind::value("river_up", TRAVEL_MODE_RIVER_UP),
luabind::value("river_down", TRAVEL_MODE_RIVER_DOWN),
luabind::value("route", TRAVEL_MODE_ROUTE)],
luabind::class_<SourceContainer>("sources")
.def(luabind::constructor<>())
.def("load", &SourceContainer::loadRasterSource)
.def("query", &SourceContainer::getRasterDataFromSource)
.def("interpolate", &SourceContainer::getRasterInterpolateFromSource),
luabind::class_<const float>("constants")
.enum_("enums")[luabind::value("precision", COORDINATE_PRECISION)],
luabind::class_<ProfileProperties>("ProfileProperties")
.def(luabind::constructor<>())
.property("traffic_signal_penalty", &ProfileProperties::GetTrafficSignalPenalty,
&ProfileProperties::SetTrafficSignalPenalty)
.property("u_turn_penalty", &ProfileProperties::GetUturnPenalty,
&ProfileProperties::SetUturnPenalty)
.def_readwrite("use_turn_restrictions", &ProfileProperties::use_turn_restrictions)
.def_readwrite("allow_u_turn_at_via", &ProfileProperties::allow_u_turn_at_via),
luabind::class_<std::vector<std::string>>("vector")
.def("Add", static_cast<void (std::vector<std::string>::*)(const std::string &)>(
&std::vector<std::string>::push_back)),
luabind::class_<osmium::Location>("Location")
.def<location_member_ptr_type>("lat", &osmium::Location::lat)
.def<location_member_ptr_type>("lon", &osmium::Location::lon),
luabind::class_<osmium::Node>("Node")
// .def<node_member_ptr_type>("tags", &osmium::Node::tags)
.def("location", &osmium::Node::location)
.def("get_value_by_key", &osmium::Node::get_value_by_key)
.def("get_value_by_key", &get_value_by_key<osmium::Node>)
.def("id", &osmium::Node::id),
luabind::class_<ExtractionNode>("ResultNode")
.def_readwrite("traffic_lights", &ExtractionNode::traffic_lights)
.def_readwrite("barrier", &ExtractionNode::barrier),
luabind::class_<ExtractionWay>("ResultWay")
// .def(luabind::constructor<>())
.def_readwrite("forward_speed", &ExtractionWay::forward_speed)
.def_readwrite("backward_speed", &ExtractionWay::backward_speed)
.def_readwrite("name", &ExtractionWay::name)
.def_readwrite("roundabout", &ExtractionWay::roundabout)
.def_readwrite("is_access_restricted", &ExtractionWay::is_access_restricted)
.def_readwrite("is_startpoint", &ExtractionWay::is_startpoint)
.def_readwrite("duration", &ExtractionWay::duration)
.property("forward_mode", &ExtractionWay::get_forward_mode,
&ExtractionWay::set_forward_mode)
.property("backward_mode", &ExtractionWay::get_backward_mode,
&ExtractionWay::set_backward_mode),
luabind::class_<osmium::Way>("Way")
.def("get_value_by_key", &osmium::Way::get_value_by_key)
.def("get_value_by_key", &get_value_by_key<osmium::Way>)
.def("id", &osmium::Way::id),
luabind::class_<InternalExtractorEdge>("EdgeSource")
.def_readonly("source_coordinate", &InternalExtractorEdge::source_coordinate)
.def_readwrite("weight_data", &InternalExtractorEdge::weight_data),
luabind::class_<InternalExtractorEdge::WeightData>("WeightData")
.def_readwrite("speed", &InternalExtractorEdge::WeightData::speed),
luabind::class_<ExternalMemoryNode>("EdgeTarget")
.property("lon", &lonToDouble<ExternalMemoryNode>)
.property("lat", &latToDouble<ExternalMemoryNode>),
luabind::class_<util::Coordinate>("Coordinate")
.property("lon", &lonToDouble<util::Coordinate>)
.property("lat", &latToDouble<util::Coordinate>),
luabind::class_<RasterDatum>("RasterDatum")
.def_readonly("datum", &RasterDatum::datum)
.def("invalid_data", &RasterDatum::get_invalid)];
luabind::globals(context.state)["properties"] = &context.properties;
luabind::globals(context.state)["sources"] = &context.sources;
if (0 != luaL_dofile(context.state, file_name.c_str()))
{
luabind::object error_msg(luabind::from_stack(context.state, -1));
std::ostringstream error_stream;
error_stream << error_msg;
throw util::exception("ERROR occurred in profile script:\n" + error_stream.str());
}
}
ScriptingEnvironment::Context &ScriptingEnvironment::GetContex()
{
std::lock_guard<std::mutex> lock(init_mutex);
bool initialized = false;
auto &ref = script_contexts.local(initialized);
if (!initialized)
{
ref = util::make_unique<Context>();
InitContext(*ref);
}
luabind::set_pcall_callback(&luaErrorCallback);
return *ref;
}
}
}