prediction: added GetScenarioFeatures interface in ScenarioAnalyzer

modules/prediction/scenario/analyzer/BUILD

@@ -11,6 +11,7 @@ cc_library(
         "//modules/prediction/proto:scenario_proto",
         "//modules/prediction/common:environment_features",
         "//modules/prediction/common:prediction_gflags",
+        "//modules/prediction/scenario/scenario_features:scenario_features",
     ],
 )
 

modules/prediction/scenario/analyzer/scenario_analyzer.cc

@@ -35,5 +35,10 @@ const Scenario& ScenarioAnalyzer::scenario() const {
   return scenario_;
 }
 
+std::shared_ptr<const ScenarioFeatures>
+ScenarioAnalyzer::GetScenarioFeatures() const {
+  return nullptr;
+}
+
 }  // namespace prediction
 }  // namespace apollo

modules/prediction/scenario/analyzer/scenario_analyzer.h

@@ -17,8 +17,11 @@
 #ifndef MODULES_PREDICTION_SCENARIO_ANALYZER_SCENARIO_ANALYZER_H_
 #define MODULES_PREDICTION_SCENARIO_ANALYZER_SCENARIO_ANALYZER_H_
 
+#include <memory>
+
 #include "modules/prediction/proto/scenario.pb.h"
 #include "modules/prediction/common/environment_features.h"
+#include "modules/prediction/scenario/scenario_features/scenario_features.h"
 
 namespace apollo {
 namespace prediction {
@@ -33,6 +36,7 @@ class ScenarioAnalyzer {
 
   const Scenario& scenario() const;
 
+  std::shared_ptr<const ScenarioFeatures> GetScenarioFeatures() const;
  private:
   Scenario scenario_;
 };

modules/prediction/scenario/scenario_features/cruise_scenario_features.h

@@ -24,10 +24,12 @@
 #include <string>
 #include <unordered_set>
 
+#include "modules/prediction/scenario/scenario_features/scenario_features.h"
+
 namespace apollo {
 namespace prediction {
 
-class CruiseScenarioFeatures {
+class CruiseScenarioFeatures : public ScenarioFeatures {
  public:
   CruiseScenarioFeatures();
 

modules/prediction/scenario/scenario_features/scenario_features.h

@@ -26,7 +26,7 @@ namespace prediction {
 
 class ScenarioFeatures {
  public:
-  ScenarioFeatures() = 0;
+  ScenarioFeatures() = default;
 
   ~ScenarioFeatures() = default;
 };