Allow multiple GeoJSON files with locations data

features/options/extract/lua.feature

@@ -72,6 +72,7 @@ Feature: osrm-extract lua ways:get_nodes()
 
         function way_function(profile, way, result, relations)
            print('ISO3166-1 ' .. (way:get_location_tag('ISO3166-1') or 'none'))
+           print('answer ' .. (way:get_location_tag('answer') or 'none'))
            result.forward_mode = mode.driving
            result.forward_speed = 1
         end
@@ -85,18 +86,22 @@ Feature: osrm-extract lua ways:get_nodes()
             | b    | 22.4901701 | 113.9455899 |  2 |
             | c    | 22.4901852 | 113.9458608 |  3 |
             | d    | 22.4904033 | 113.9456999 |  4 |
+            | e    |        1.1 |           1 |  5 |
+            | f    |        1.2 |           1 |  6 |
         And the ways with locations
             | nodes | #              |
             | ab    | Hong Kong      |
             | cd    | China Mainland |
+            | ef    | Null Island    |
         And the data has been saved to disk
 
         When I run "osrm-extract --profile {profile_file} {osm_file} --location-dependent-data test/data/regions/null-island.geojson --location-dependent-data test/data/regions/hong-kong.geojson"
         Then it should exit successfully
-        And stdout should contain "1 GeoJSON polygon"
+        And stdout should not contain "1 GeoJSON polygon"
         And stdout should contain "2 GeoJSON polygons"
         And stdout should contain "ISO3166-1 HK"
         And stdout should contain "ISO3166-1 none"
+        And stdout should contain "answer 42"
 
     Scenario: osrm-extract location-dependent data via locations cache
         Given the profile file

include/extractor/location_dependent_data.hpp

@@ -32,8 +32,6 @@ struct LocationDependentData
     using property_t = boost::variant<boost::blank, double, std::string, bool>;
     using properties_t = std::unordered_map<std::string, property_t>;
 
-    LocationDependentData(const boost::filesystem::path &path);
-
     LocationDependentData(const std::vector<boost::filesystem::path> &file_paths);
 
     bool empty() const { return rtree.empty(); }
@@ -41,7 +39,8 @@ struct LocationDependentData
     property_t operator()(const point_t &point, const char *key) const;
 
   private:
-    void loadLocationDependentData(const boost::filesystem::path &file_path);
+    void loadLocationDependentData(const boost::filesystem::path &file_path,
+                                   std::vector<rtree_t::value_type> &bounding_boxes);
 
     rtree_t rtree;
     std::vector<std::pair<polygon_bands_t, std::size_t>> polygons;

src/extractor/location_dependent_data.cpp

@@ -19,20 +19,22 @@ namespace osrm
 namespace extractor
 {
 
-LocationDependentData::LocationDependentData(const boost::filesystem::path &path)
-{
-    loadLocationDependentData(path);
-}
-
 LocationDependentData::LocationDependentData(const std::vector<boost::filesystem::path> &file_paths)
 {
+    std::vector<rtree_t::value_type> bounding_boxes;
     for (const auto &path : file_paths)
     {
-        loadLocationDependentData(path);
+        loadLocationDependentData(path, bounding_boxes);
     }
+
+    // Create R-tree for bounding boxes of collected polygons
+    rtree = rtree_t(bounding_boxes);
+    util::Log() << "Parsed " << properties.size() << " location-dependent features with "
+                << polygons.size() << " GeoJSON polygons";
 }
 
-void LocationDependentData::loadLocationDependentData(const boost::filesystem::path &file_path)
+void LocationDependentData::loadLocationDependentData(
+    const boost::filesystem::path &file_path, std::vector<rtree_t::value_type> &bounding_boxes)
 {
     if (file_path.empty())
         return;
@@ -64,7 +66,6 @@ void LocationDependentData::loadLocationDependentData(const boost::filesystem::p
     BOOST_ASSERT(geojson["features"].IsArray());
 
     const auto &features_array = geojson["features"].GetArray();
-    std::vector<rtree_t::value_type> bounding_boxes;
 
     auto convert_value = [](const auto &property) -> property_t {
         if (property.IsString())
@@ -188,11 +189,6 @@ void LocationDependentData::loadLocationDependentData(const boost::filesystem::p
             }
         }
     }
-
-    // Create R-tree for bounding boxes of collected polygons
-    rtree = rtree_t(bounding_boxes);
-    util::Log() << "Parsed " << properties.size() << " location-dependent features with "
-                << polygons.size() << " GeoJSON polygons";
 }
 
 LocationDependentData::property_t LocationDependentData::operator()(const point_t &point,

unit_tests/extractor/location_dependent_data_tests.cpp

@@ -49,7 +49,8 @@ BOOST_AUTO_TEST_CASE(polygon_tests)
 }
 ]})json");
 
-    LocationDependentData data(fixture.temporary_file);
+    LocationDependentData data({fixture.temporary_file});
+
     BOOST_CHECK_EQUAL(data(point_t(0, 0), "answer").which(), 0);
     BOOST_CHECK_EQUAL(boost::get<double>(data(point_t(1, 1), "answer")), 42);
     BOOST_CHECK_EQUAL(boost::get<double>(data(point_t(0, 1), "answer")), 42);
@@ -79,7 +80,8 @@ BOOST_AUTO_TEST_CASE(multy_polygon_tests)
 }
 ]})json");
 
-    LocationDependentData data(fixture.temporary_file);
+    LocationDependentData data({fixture.temporary_file});
+
     BOOST_CHECK_EQUAL(data(point_t(0, 2), "answer").which(), 0);
     BOOST_CHECK_EQUAL(data(point_t(0, -3), "answer").which(), 0);
     BOOST_CHECK_EQUAL(boost::get<double>(data(point_t(0, 0), "answer")), 42.);
@@ -109,7 +111,8 @@ BOOST_AUTO_TEST_CASE(polygon_merging_tests)
 }
 ]})json");
 
-    LocationDependentData data(fixture.temporary_file);
+    LocationDependentData data({fixture.temporary_file});
+
     BOOST_CHECK_EQUAL(boost::get<std::string>(data(point_t(-3, 3), "answer")), "a");
     BOOST_CHECK_EQUAL(boost::get<std::string>(data(point_t(-3, 1), "answer")), "a");
     BOOST_CHECK_EQUAL(boost::get<std::string>(data(point_t(-3, -3), "answer")), "a");
@@ -137,7 +140,7 @@ BOOST_AUTO_TEST_CASE(staircase_polygon)
 }
 ]})json");
 
-    LocationDependentData data(fixture.temporary_file);
+    LocationDependentData data({fixture.temporary_file});
 
     // all corners
     BOOST_CHECK_NE(data(point_t(0, 0), "answer").which(), 0);