Added evaluator factory implementation

modules/prediction/evaluator/BUILD

@@ -3,10 +3,13 @@ package(default_visibility = ["//visibility:public"])
 cc_library(
     name = "evaluator_factory",
     hdrs = ["evaluator_factory.h"],
+    srcs = ["evaluator_factory.cc"],
     deps = [
         "//modules/prediction/evaluator:evaluator",
+        "//modules/prediction/proto:prediction_conf_proto",
         "//modules/common/util:factory",
         "//modules/common:macro",
+        "@glog//:glog",
     ]
 )
 

modules/prediction/evaluator/evaluator_factory.cc

+/******************************************************************************
+ * Copyright 2017 The Apollo Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *****************************************************************************/
+
+#include "modules/prediction/evaluator/evaluator_factory.h"
+
+#include "modules/common/log.h"
+
+namespace apollo {
+namespace prediction {
+
+EvaluatorFactory::EvaluatorFactory() {}
+
+void EvaluatorFactory::RegisterEvaluator() {
+    Register(PredictionConf::DEF_EVAL,
+        []() -> Evaluator* { return nullptr; });
+}
+
+std::unique_ptr<Evaluator> EvaluatorFactory::CreateEvaluator(
+    const PredictionConf::Eval& eval) {
+  auto evaluator = CreateObject(eval);
+  if (!evaluator) {
+    AERROR << "Failed to create an evaluator with " << eval;
+  } else {
+    ADEBUG << "Succeeded in creating an evaluator with " << eval;
+  }
+  return evaluator;
+}
+
+}
+}
\ No newline at end of file

modules/prediction/evaluator/evaluator_factory.h

@@ -24,6 +24,8 @@
 
 #include <memory>
 
+#include "modules/prediction/evaluator/evaluator.h"
+#include "modules/prediction/proto/prediction_conf.pb.h"
 #include "modules/common/util/factory.h"
 #include "modules/common/macro.h"
 
@@ -32,6 +34,9 @@
  * @brief apollo::prediction
  */
 
+namespace apollo {
+namespace prediction {
+
 class EvaluatorFactory
     : public apollo::common::util::Factory<PredictionConf::Eval,
                                            Evaluator> {
@@ -50,6 +55,9 @@ class EvaluatorFactory
 
  private:
   DECLARE_SINGLETON(EvaluatorFactory);
-}
+};
+
+} // namespace prediction
+} // namespace apollo
 
 #endif // MODULES_PREDICTION_EVALUATOR_EVALUATOR_FACTORY_H_
\ No newline at end of file