8.7. 运行 7000 timetable 应用程序

流程

1. 使用以下内容创建 src/test/java/com/example/rest/TimeTableResourceTest.java 类：

   package com.exmaple.optaplanner.rest;
   
   import java.time.DayOfWeek;
   import java.time.LocalTime;
   import java.util.ArrayList;
   import java.util.List;
   
   import javax.inject.Inject;
   
   import io.quarkus.test.junit.QuarkusTest;
   import com.exmaple.optaplanner.domain.Room;
   import com.exmaple.optaplanner.domain.Timeslot;
   import com.exmaple.optaplanner.domain.Lesson;
   import com.exmaple.optaplanner.domain.TimeTable;
   import com.exmaple.optaplanner.rest.TimeTableResource;
   import org.junit.jupiter.api.Test;
   import org.junit.jupiter.api.Timeout;
   
   import static org.junit.jupiter.api.Assertions.assertFalse;
   import static org.junit.jupiter.api.Assertions.assertNotNull;
   import static org.junit.jupiter.api.Assertions.assertTrue;
   
   @QuarkusTest
   public class TimeTableResourceTest {
   
       @Inject
       TimeTableResource timeTableResource;
   
       @Test
       @Timeout(600_000)
       public void solve() {
           TimeTable problem = generateProblem();
           TimeTable solution = timeTableResource.solve(problem);
           assertFalse(solution.getLessonList().isEmpty());
           for (Lesson lesson : solution.getLessonList()) {
               assertNotNull(lesson.getTimeslot());
               assertNotNull(lesson.getRoom());
           }
           assertTrue(solution.getScore().isFeasible());
       }
   
       private TimeTable generateProblem() {
           List<Timeslot> timeslotList = new ArrayList<>();
           timeslotList.add(new Timeslot(DayOfWeek.MONDAY, LocalTime.of(8, 30), LocalTime.of(9, 30)));
           timeslotList.add(new Timeslot(DayOfWeek.MONDAY, LocalTime.of(9, 30), LocalTime.of(10, 30)));
           timeslotList.add(new Timeslot(DayOfWeek.MONDAY, LocalTime.of(10, 30), LocalTime.of(11, 30)));
           timeslotList.add(new Timeslot(DayOfWeek.MONDAY, LocalTime.of(13, 30), LocalTime.of(14, 30)));
           timeslotList.add(new Timeslot(DayOfWeek.MONDAY, LocalTime.of(14, 30), LocalTime.of(15, 30)));
   
           List<Room> roomList = new ArrayList<>();
           roomList.add(new Room("Room A"));
           roomList.add(new Room("Room B"));
           roomList.add(new Room("Room C"));
   
           List<Lesson> lessonList = new ArrayList<>();
           lessonList.add(new Lesson(101L, "Math", "B. May", "9th grade"));
           lessonList.add(new Lesson(102L, "Physics", "M. Curie", "9th grade"));
           lessonList.add(new Lesson(103L, "Geography", "M. Polo", "9th grade"));
           lessonList.add(new Lesson(104L, "English", "I. Jones", "9th grade"));
           lessonList.add(new Lesson(105L, "Spanish", "P. Cruz", "9th grade"));
   
           lessonList.add(new Lesson(201L, "Math", "B. May", "10th grade"));
           lessonList.add(new Lesson(202L, "Chemistry", "M. Curie", "10th grade"));
           lessonList.add(new Lesson(203L, "History", "I. Jones", "10th grade"));
           lessonList.add(new Lesson(204L, "English", "P. Cruz", "10th grade"));
           lessonList.add(new Lesson(205L, "French", "M. Curie", "10th grade"));
           return new TimeTable(timeslotList, roomList, lessonList);
       }
   
   }

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   此测试会验证之后，所有较少记录都会被分配给一个时间插槽和房间。它还会验证它发现了一个可行的解决方案（没有硬约束中断）。

2. 在 src/main/resources/application.properties 文件中添加 test 属性：

   # The solver runs only for 5 seconds to avoid a HTTP timeout in this simple implementation.
   # It's recommended to run for at least 5 minutes ("5m") otherwise.
   quarkus.optaplanner.solver.termination.spent-limit=5s
   
   # Effectively disable this termination in favor of the best-score-limit
   %test.quarkus.optaplanner.solver.termination.spent-limit=1h
   %test.quarkus.optaplanner.solver.termination.best-score-limit=0hard/*soft

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流程

1. 在固定时间内运行 7000 timetable 应用程序，例如五分钟。

2. 查看日志文件中的分数计算速度，如下例所示：

   ... Solving ended: ..., score calculation speed (29455/sec), ...

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3. 更改约束，在相同时间内再次运行 planning 应用程序，并查看日志文件中记录的分数计算速度。

4. 以 debug 模式运行应用程序，以记录应用程序所做的每个步骤：

   • 要从命令行运行调试模式，请使用 -D 系统属性。

   • 要永久启用调试模式，请在 application.properties 文件中添加以下行：

     quarkus.log.category."org.optaplanner".level=debug

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     以下示例以 debug 模式显示 日志文件中 的输出：

     ... Solving started: time spent (67), best score (-20init/0hard/0soft), environment mode (REPRODUCIBLE), random (JDK with seed 0).
     ...     CH step (0), time spent (128), score (-18init/0hard/0soft), selected move count (15), picked move ([Math(101) {null -> Room A}, Math(101) {null -> MONDAY 08:30}]).
     ...     CH step (1), time spent (145), score (-16init/0hard/0soft), selected move count (15), picked move ([Physics(102) {null -> Room A}, Physics(102) {null -> MONDAY 09:30}]).
     ...

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5. 使用 trace 日志记录来显示每个步骤，以及每个步骤的每次移动。