Passed ResultT down to engine plugins, so now they can form replies in different formats.

include/engine/plugins/match.hpp

@@ -32,7 +32,7 @@ class MatchPlugin : public BasePlugin
 
     Status HandleRequest(const RoutingAlgorithmsInterface &algorithms,
                          const api::MatchParameters &parameters,
-                         util::json::Object &json_result) const;
+                         osrm::engine::api::ResultT &json_result) const;
 
   private:
     const int max_locations_map_matching;

include/engine/plugins/nearest.hpp

@@ -21,7 +21,7 @@ class NearestPlugin final : public BasePlugin
 
     Status HandleRequest(const RoutingAlgorithmsInterface &algorithms,
                          const api::NearestParameters &params,
-                         util::json::Object &result) const;
+                         osrm::engine::api::ResultT &result) const;
 
   private:
     const int max_results;

include/engine/plugins/plugin_base.hpp

@@ -2,6 +2,7 @@
 #define BASE_PLUGIN_HPP
 
 #include "engine/api/base_parameters.hpp"
+#include "engine/api/base_result.hpp"
 #include "engine/datafacade/datafacade_base.hpp"
 #include "engine/phantom_node.hpp"
 #include "engine/routing_algorithms.hpp"
@@ -39,7 +40,7 @@ class BasePlugin
 
     bool CheckAlgorithms(const api::BaseParameters &params,
                          const RoutingAlgorithmsInterface &algorithms,
-                         util::json::Object &result) const
+                         osrm::engine::api::ResultT &result) const
     {
         if (algorithms.IsValid())
         {
@@ -64,8 +65,10 @@ class BasePlugin
 
     Status Error(const std::string &code,
                  const std::string &message,
-                 util::json::Object &json_result) const
+                 osrm::engine::api::ResultT &result) const
     {
+        result = util::json::Object();
+        auto& json_result = result.get<util::json::Object>();
         json_result.values["code"] = code;
         json_result.values["message"] = message;
         return Status::Error;

include/engine/plugins/table.hpp

@@ -22,7 +22,7 @@ class TablePlugin final : public BasePlugin
 
     Status HandleRequest(const RoutingAlgorithmsInterface &algorithms,
                          const api::TableParameters &params,
-                         util::json::Object &result) const;
+                         osrm::engine::api::ResultT &result) const;
 
   private:
     const int max_locations_distance_table;

include/engine/plugins/tile.hpp

@@ -28,7 +28,7 @@ class TilePlugin final : public BasePlugin
   public:
     Status HandleRequest(const RoutingAlgorithmsInterface &algorithms,
                          const api::TileParameters &parameters,
-                         std::string &pbf_buffer) const;
+                         osrm::engine::api::ResultT &pbf_buffer) const;
 };
 }
 }

include/engine/plugins/trip.hpp

@@ -40,7 +40,7 @@ class TripPlugin final : public BasePlugin
 
     Status HandleRequest(const RoutingAlgorithmsInterface &algorithms,
                          const api::TripParameters &parameters,
-                         util::json::Object &json_result) const;
+                         osrm::engine::api::ResultT &json_result) const;
 };
 }
 }

include/engine/plugins/viaroute.hpp

@@ -33,7 +33,7 @@ class ViaRoutePlugin final : public BasePlugin
 
     Status HandleRequest(const RoutingAlgorithmsInterface &algorithms,
                          const api::RouteParameters &route_parameters,
-                         util::json::Object &json_result) const;
+                         osrm::engine::api::ResultT &json_result) const;
 };
 }
 }