feat: 이벤트 처리 로그 추가 (#85)

* [#42] refactor: post like 패키지 구조 수정

* [#42] fix: 포스트 삭제 시 좋아요가 있으면 오류가 발생하는 문제 해결

* [#42] feat: 이벤트 처리 로그 AOP 구현

* [#42] chore: jacoco, sonarcloud에서 AOP 제거

build.gradle

@@ -100,6 +100,7 @@ def excludeCoverage = [
         '**/auth/infrastructure/oauth/*/**',
         '**/auth/presentation/OauthController*',
         '**/common/domain/CommonDomainModel*',
+        '**/common/log/**',
 ] + Qdomains
 
 jacocoTestReport {
@@ -149,6 +150,7 @@ jacocoTestCoverageVerification {
                     '*.auth.infrastructure.oauth.*.*',
                     '*.OauthController',
                     '*.common.domain.CommonDomainModel*',
+                    '*.common.log.*',
             ] + QdomainsInVerification
 
             limit {

src/main/java/com/mallang/category/domain/event/CategoryDeletedEvent.java

@@ -1,6 +1,13 @@
 package com.mallang.category.domain.event;
 
+import com.mallang.common.domain.DomainEvent;
+
 public record CategoryDeletedEvent(
         Long categoryId
-) {
+) implements DomainEvent {
+
+    @Override
+    public Long id() {
+        return categoryId();
+    }
 }

src/main/java/com/mallang/common/domain/DomainEvent.java

@@ -0,0 +1,6 @@
+package com.mallang.common.domain;
+
+public interface DomainEvent {
+
+    Long id();
+}

src/main/java/com/mallang/common/log/event/EventHandleLogAop.java

@@ -0,0 +1,45 @@
+package com.mallang.common.log.event;
+
+import com.mallang.common.domain.DomainEvent;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.aspectj.lang.JoinPoint;
+import org.aspectj.lang.annotation.Aspect;
+import org.aspectj.lang.annotation.Before;
+import org.aspectj.lang.annotation.Pointcut;
+import org.springframework.stereotype.Component;
+
+@Slf4j
+@RequiredArgsConstructor
+@Aspect
+@Component
+public class EventHandleLogAop {
+
+    @Pointcut("@annotation(org.springframework.context.event.EventListener)")
+    public void eventListeners() {
+    }
+
+    @Pointcut("@annotation(org.springframework.transaction.event.TransactionalEventListener)")
+    public void transactionalEventListeners() {
+    }
+
+    @Before("(eventListeners() || transactionalEventListeners()) && args(event)")
+    public void handleEventLog(JoinPoint joinPoint, DomainEvent event) {
+        String className = getClassSimpleName(joinPoint);
+        String methodName = getMethodName(joinPoint);
+        log.info("Handle [{}(Domain Id: {})] by [{}.{}()]",
+                event.getClass().getSimpleName(),
+                event.id(),
+                className,
+                methodName);
+    }
+
+    private String getClassSimpleName(JoinPoint joinPoint) {
+        Class<?> clazz = joinPoint.getTarget().getClass();
+        return clazz.getSimpleName();
+    }
+
+    private String getMethodName(JoinPoint joinPoint) {
+        return joinPoint.getSignature().getName();
+    }
+}

src/main/java/com/mallang/post/application/PostLikeEventHandler.java

@@ -0,0 +1,23 @@
+package com.mallang.post.application;
+
+import com.mallang.post.domain.PostDeleteEvent;
+import com.mallang.post.domain.like.PostLikeRepository;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.context.event.EventListener;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Slf4j
+@RequiredArgsConstructor
+@Transactional
+@Service
+public class PostLikeEventHandler {
+
+    private final PostLikeRepository postLikeRepository;
+
+    @EventListener(PostDeleteEvent.class)
+    void deletePostLike(PostDeleteEvent event) {
+        postLikeRepository.deleteAllByPostId(event.postId());
+    }
+}

src/main/java/com/mallang/post/application/PostLikeService.java

@@ -5,10 +5,10 @@
 import com.mallang.post.application.command.CancelPostLikeCommand;
 import com.mallang.post.application.command.ClickPostLikeCommand;
 import com.mallang.post.domain.Post;
-import com.mallang.post.domain.PostLike;
-import com.mallang.post.domain.PostLikeRepository;
-import com.mallang.post.domain.PostLikeValidator;
 import com.mallang.post.domain.PostRepository;
+import com.mallang.post.domain.like.PostLike;
+import com.mallang.post.domain.like.PostLikeRepository;
+import com.mallang.post.domain.like.PostLikeValidator;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -27,7 +27,7 @@ public void click(ClickPostLikeCommand command) {
         Post post = postRepository.getById(command.postId());
         Member member = memberRepository.getById(command.memberId());
         PostLike postLike = new PostLike(post, member);
-        postLike.click(postLikeValidator, command.postPassword());
+        postLike.like(postLikeValidator, command.postPassword());
         postLikeRepository.save(postLike);
     }
 

src/main/java/com/mallang/post/domain/PostDeleteEvent.java

@@ -1,13 +1,19 @@
 package com.mallang.post.domain;
 
+import com.mallang.common.domain.DomainEvent;
 import java.time.LocalDateTime;
 
 public record PostDeleteEvent(
         Long postId,
         LocalDateTime deletedDate
-) {
+) implements DomainEvent {
 
     public PostDeleteEvent(Long postId) {
         this(postId, LocalDateTime.now());
     }
+
+    @Override
+    public Long id() {
+        return postId();
+    }
 }

src/main/java/com/mallang/post/domain/PostLike.java → src/main/java/com/mallang/post/domain/like/PostLike.java

@@ -1,9 +1,10 @@
-package com.mallang.post.domain;
+package com.mallang.post.domain.like;
 
 import static jakarta.persistence.FetchType.LAZY;
 
 import com.mallang.auth.domain.Member;
 import com.mallang.common.domain.CommonDomainModel;
+import com.mallang.post.domain.Post;
 import jakarta.annotation.Nullable;
 import jakarta.persistence.Entity;
 import jakarta.persistence.JoinColumn;
@@ -30,7 +31,7 @@ public PostLike(Post post, Member member) {
         this.member = member;
     }
 
-    public void click(PostLikeValidator postLikeValidator, @Nullable String postPassword) {
+    public void like(PostLikeValidator postLikeValidator, @Nullable String postPassword) {
         post.validatePostAccessibility(member, postPassword);
         postLikeValidator.validateClickLike(post, member);
         post.clickLike();

src/main/java/com/mallang/post/domain/PostLikeRepository.java → src/main/java/com/mallang/post/domain/like/PostLikeRepository.java

@@ -1,9 +1,13 @@
-package com.mallang.post.domain;
+package com.mallang.post.domain.like;
 
 import com.mallang.auth.domain.Member;
+import com.mallang.post.domain.Post;
 import com.mallang.post.exception.NotFoundPostLikeException;
 import java.util.Optional;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
 
 public interface PostLikeRepository extends JpaRepository<PostLike, Long> {
 
@@ -15,4 +19,8 @@ default PostLike getByPostIdAndMemberId(Long postId, Long memberId) {
     }
 
     Optional<PostLike> findByPostIdAndMemberId(Long postId, Long memberId);
+
+    @Modifying
+    @Query("DELETE FROM PostLike pl WHERE pl.post.id = :postId")
+    void deleteAllByPostId(@Param("postId") Long postId);
 }

src/main/java/com/mallang/post/domain/PostLikeValidator.java → src/main/java/com/mallang/post/domain/like/PostLikeValidator.java

@@ -1,6 +1,7 @@
-package com.mallang.post.domain;
+package com.mallang.post.domain.like;
 
 import com.mallang.auth.domain.Member;
+import com.mallang.post.domain.Post;
 import com.mallang.post.exception.AlreadyLikedPostException;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Component;

src/main/java/com/mallang/post/query/dao/support/PostLikeQuerySupport.java

@@ -1,6 +1,6 @@
 package com.mallang.post.query.dao.support;
 
-import com.mallang.post.domain.PostLike;
+import com.mallang.post.domain.like.PostLike;
 import java.util.Optional;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;

src/test/java/com/mallang/post/application/PostLikeServiceTest.java

@@ -10,6 +10,7 @@
 import com.mallang.post.application.command.ClickPostLikeCommand;
 import com.mallang.post.domain.Post;
 import com.mallang.post.domain.PostRepository;
+import com.mallang.post.domain.like.PostLikeRepository;
 import com.mallang.post.exception.AlreadyLikedPostException;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.DisplayName;
@@ -40,6 +41,9 @@ class PostLikeServiceTest {
     @Autowired
     private PostLikeService postLikeService;
 
+    @Autowired
+    private PostLikeRepository postLikeRepository;
+
     private Long memberId;
     private String blogName;
     private Long postId;
@@ -87,9 +91,23 @@ class 좋아요_시 {
 
         // when
         postLikeService.cancel(new CancelPostLikeCommand(postId, memberId, null));
-
         // then
         Post post = postRepository.getById(postId);
         assertThat(post.getLikeCount()).isZero();
     }
+
+    @Nested
+    class 포스트_삭제_시 {
+
+        @Test
+        void 좋아요도_삭제되어야_한다() {
+            postLikeService.click(new ClickPostLikeCommand(postId, memberId, null));
+
+            // when
+            postServiceTestHelper.포스트를_삭제한다(memberId, postId);
+
+            // then
+            assertThat(postLikeRepository.findByPostIdAndMemberId(postId, memberId)).isEmpty();
+        }
+    }
 }

src/test/java/com/mallang/post/application/PostServiceTestHelper.java

@@ -3,10 +3,12 @@
 import static com.mallang.post.domain.visibility.PostVisibilityPolicy.Visibility.PUBLIC;
 
 import com.mallang.post.application.command.CreatePostCommand;
+import com.mallang.post.application.command.DeletePostCommand;
 import com.mallang.post.domain.Post;
 import com.mallang.post.domain.PostRepository;
 import com.mallang.post.domain.visibility.PostVisibilityPolicy;
 import java.util.Arrays;
+import java.util.List;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Component;
 import org.springframework.test.context.ActiveProfiles;
@@ -55,6 +57,10 @@ public class PostServiceTestHelper {
         ));
     }
 
+    public void 포스트를_삭제한다(Long memberId, Long postId) {
+        postService.delete(new DeletePostCommand(memberId, List.of(postId)));
+    }
+
     public Post 포스트를_조회한다(Long 포스트_ID) {
         return postRepository.getById(포스트_ID);
     }