feat(ServerEvent): 서브타입 검증 추가

- 서버 이벤트 타입과 그 서브 타입은 관련이 있어야 함.

Author: m-a-king

src/main/java/com/somemore/global/common/event/ServerEvent.java

@@ -24,8 +24,19 @@ protected ServerEvent(
             @JsonProperty(value = "subType", required = true) T subType,
             @JsonProperty(value = "createdAt", required = true) LocalDateTime createdAt
     ) {
+        validate(type, subType);
         this.type = type;
         this.subType = subType;
         this.createdAt = (createdAt == null) ? LocalDateTime.now() : createdAt;
     }
+
+    private void validate(ServerEventType type, T subType) {
+        if (!type.getSubtype().isInstance(subType)) {
+            throw new IllegalArgumentException(String.format(
+                    "잘못된 서브타입: %s는 %s와 일치하지 않습니다.",
+                    subType,
+                    type.getSubtype()
+            ));
+        }
+    }
 }

src/main/java/com/somemore/notification/converter/MessageConverter.java

@@ -1,9 +1,9 @@
 package com.somemore.notification.converter;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
-import com.fasterxml.jackson.databind.JsonMappingException;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.somemore.community.event.CommentAddedEvent;
 import com.somemore.facade.event.VolunteerReviewRequestEvent;
 import com.somemore.notification.domain.Notification;
 import com.somemore.notification.domain.NotificationSubType;
@@ -29,6 +29,7 @@ public Notification from(String message) {
                 case NOTE_BLAH_BLAH -> throw new UnsupportedOperationException("NOTE 알림 타입 처리 로직 미구현");
                 case VOLUNTEER_REVIEW_REQUEST -> buildVolunteerReviewRequestNotification(message);
                 case VOLUNTEER_APPLY_STATUS_CHANGE -> buildVolunteerApplyStatusChangeNotification(message);
+                case COMMENT_ADDED -> buildCommentAddedNotification(message);
             };
         } catch (Exception e) {
             log.error(e.getMessage());
@@ -58,6 +59,17 @@ private Notification buildVolunteerApplyStatusChangeNotification(String message)
                 .build();
     }
 
+    private Notification buildCommentAddedNotification(String message) throws JsonProcessingException {
+        CommentAddedEvent event = objectMapper.readValue(message, CommentAddedEvent.class);
+
+        return Notification.builder()
+                .receiverId(event.getVolunteerId())
+                .title(createCommentAddedNotificationTitle())
+                .type(NotificationSubType.COMMENT_ADDED)
+                .relatedId(event.getCommunityBoardId())
+                .build();
+    }
+
     private String createVolunteerReviewRequestNotificationTitle() {
         return "최근 활동하신 활동의 후기를 작성해 주세요!";
     }
@@ -72,4 +84,8 @@ private String createVolunteerApplyStatusChangeNotificationTitle(ApplyStatus new
             }
         };
     }
+
+    private String createCommentAddedNotificationTitle() {
+        return "새로운 댓글이 작성되었습니다.";
+    }
 }