src/g2_2025_grade_calculator_pkg/src/exam_result_generator/nodes/ExamResultGenerator.cpp

@@ -7,6 +7,10 @@ ExamResultGenerator::ExamResultGenerator()
     gen_(rd_()),
     grade_dist_(10, 100)
 {
+    this->declare_parameter("delay_between_grades_ms", 2000);
+    int delay_ms = this->get_parameter("delay_between_grades_ms").as_int();
+    delay_between_grades_ = std::chrono::milliseconds(delay_ms);
+
     db_manager_ = std::make_unique<DatabaseManager>(this->get_logger());
 
     // Load initial student/course combinations from database
@@ -27,7 +31,7 @@ ExamResultGenerator::ExamResultGenerator()
 
     // Create timer to generate random exam results every 2 seconds
     timer_ = this->create_wall_timer(
-        std::chrono::seconds(2),
+        delay_between_grades_,
         std::bind(&ExamResultGenerator::generate_random_result, this)
     );
 

src/g2_2025_grade_calculator_pkg/src/exam_result_generator/nodes/ExamResultGenerator.hpp

@@ -8,6 +8,7 @@
  * Reviewed by: <x>
  * Changelog:
  * [23-09-2025] Wessel T: Initial Implementation
+ * [05-10-2025] Wessel T: Added delay between grades parameter
  */
 #pragma once
 
@@ -15,6 +16,7 @@
 #include <string>
 #include <random>
 #include <vector>
+#include <chrono>
 
 #include "rclcpp/rclcpp.hpp"
 #include "g2_2025_interfaces/msg/exam.hpp"
@@ -42,10 +44,12 @@ private:
 
     std::vector<StudentCourse> operations_queue_;
 
+    std::chrono::milliseconds delay_between_grades_ { 2000 };
+
     void queue_pending_combinations();
     void generate_random_result();
     void student_management_callback(const g2_2025_interfaces::msg::Student::SharedPtr msg);
     void add_student_course_combination(const StudentCourse& sc);
 };
 
-} // namespace lessons::zero::tmp
+} // namespace assignments::one::exam_result_generator