refactor : code convention

src/main/java/usw/suwiki/domain/apilogger/service/ApiLoggerService.java

@@ -3,6 +3,7 @@
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.dao.DataIntegrityViolationException;
+import org.springframework.scheduling.annotation.Async;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import usw.suwiki.domain.apilogger.ApiLogger;
@@ -24,6 +25,7 @@ public class ApiLoggerService {
     private final String userOption = "user";
     private final String noticeOption = "notice";
 
+    @Async
     @Transactional
     public void logApi(LocalDate today, Long currentProcessTime, String option) {
         Optional<ApiLogger> apiLogger = apiLoggerRepository.findByCallDate(today);

src/main/java/usw/suwiki/domain/evaluatepost/service/EvaluatePostService.java

@@ -105,7 +105,7 @@ public List<EvaluatePostResponseByUserIdxDto> readEvaluatePostsByUserId(
     }
 
     public boolean verifyIsUserCanWriteEvaluatePost(Long userIdx, Long lectureId) {
-        Lecture lecture = lectureService.findLectureById(lectureId);;
+        Lecture lecture = lectureService.findLectureById(lectureId);
         User user = userCRUDService.loadUserFromUserIdx(userIdx);
         return evaluatePostCRUDService.isAlreadyWritten(user, lecture);
     }

src/main/java/usw/suwiki/domain/lecture/domain/Lecture.java

@@ -51,10 +51,10 @@ public class Lecture extends BaseTimeEntity {
     private int postsCount = 0;
 
     @OneToMany(mappedBy = "lecture", cascade = CascadeType.ALL, orphanRemoval = true)
-    private List<LectureSchedule> scheduleList = new ArrayList<>();
+    private final List<LectureSchedule> scheduleList = new ArrayList<>();
 
     @OneToMany(mappedBy = "lecture", cascade = CascadeType.ALL, orphanRemoval = true)
-    private List<EvaluatePost> evaluatePostList = new ArrayList<>();
+    private final List<EvaluatePost> evaluatePostList = new ArrayList<>();
 
     @Builder
     public Lecture(
@@ -159,4 +159,4 @@ private static String buildAddedSemester(String originalSemesters, String semest
         return originalSemesters + ", " + semester;
     }
 
-}
+}

src/main/java/usw/suwiki/domain/timetable/entity/Timetable.java

@@ -55,7 +55,7 @@ public class Timetable extends BaseTimeEntity {
     private Semester semester;
 
     @OneToMany(mappedBy = "timetable", cascade = CascadeType.ALL, orphanRemoval = true)
-    private List<TimetableCell> cellList = new ArrayList<>();
+    private final List<TimetableCell> cellList = new ArrayList<>();
 
     @Builder
     public Timetable(String name, Integer year, Semester semester) {

src/main/java/usw/suwiki/global/config/AsyncConfig.java

@@ -0,0 +1,25 @@
+package usw.suwiki.global.config;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.annotation.AsyncConfigurer;
+import org.springframework.scheduling.annotation.EnableAsync;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
+
+import java.util.concurrent.Executor;
+
+@Configuration
+@EnableAsync
+public class AsyncConfig implements AsyncConfigurer {
+
+    @Override
+    public Executor getAsyncExecutor() {
+        final ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
+        executor.setCorePoolSize(3);
+        executor.setMaxPoolSize(30);
+        executor.setQueueCapacity(90);
+        executor.setThreadNamePrefix("ASYNC-");
+        executor.initialize();
+
+        return executor;
+    }
+}