채팅방 채팅 메세지 전달 로직 디버깅 (#78)

[jaehyeok-code]

Summary by CodeRabbit

• 신기능
  • 채팅 메시지에 생성 시각 정보가 포함되어 클라이언트에서 전송 시간 표시가 가능합니다.
• 버그 수정
  • 채팅 전송 시 방 식별을 요청 본문 기준으로 통일해 잘못된 방으로 전달되던 문제를 해소했습니다.
  • 실시간 채팅 중계 경로를 정비해 구독·전달의 신뢰성을 높였습니다.
• 작업
  • 서버 간 채팅 채널 구독을 확대해 멀티 노드 환경에서 메시지 수신 범위를 넓혔습니다.
  • 디버그 로그를 보강해 장애 진단이 쉬워졌습니다.

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

채팅 전송 흐름을 경로 변수(roomId)에서 요청 본문(req.getRoomId()) 기반으로 변경하고, Redis 채널/구독 패턴을 chat.* 및 chat/*로 조정했습니다. 메시지 브로커 목적지와 Redis 수신자 라우팅을 갱신했으며, 예외 전파(JsonProcessingException) 및 디버그 출력이 추가되었습니다.

Changes

Cohort / File(s)	Summary
Chat publish flow backendProject/.../chat/controller/ChatMessagingController.java, backendProject/.../chat/bus/ChatRedisPublisher.java	send 핸들러가 @MessageMapping("/chat/send")로 변경되고 roomId는 req.getRoomId() 사용. Redis 채널을 chat.{roomId}로 발행. SimpMessagingTemplate 목적지는 /topic/chat/{roomId} 유지. ChatRedisPublisher.publishToRoom가 throws JsonProcessingException 추가, 내부 try-catch 제거, _src 주석 처리, 디버그 출력 추가.
Redis subscription & routing backendProject/.../global/configuration/RedisConfig.java, backendProject/.../global/redis/RedisSubscriber.java	RedisMessageListenerContainer에 PatternTopic("chat/*") 구독 추가(기존 draft.* 유지). RedisSubscriber.onMessage가 STOMP 목적지를 "/chat/" + draftId로 변경(기존 "/topic/draft." + draftId" 주석 처리).

Sequence Diagram(s)

sequenceDiagram
  autonumber
  participant C as Client
  participant MC as ChatMessagingController
  participant ST as SimpMessagingTemplate
  participant PR as ChatRedisPublisher
  participant R as Redis
  participant RS as RedisSubscriber
  participant SUB as Subscribed Clients

  rect rgba(230,245,255,0.5)
    Note over C,MC: 채팅 전송 (roomId는 요청 바디에서)
    C->>MC: SEND /chat/send (ChatSendRequest{roomId, ...})
    MC->>MC: 멤버십 검증, 메시지 저장
    MC->>ST: convertAndSend(/topic/chat/{roomId}, payload+createdAt)
  end

  rect rgba(240,255,240,0.5)
    MC->>PR: publishToRoom("chat.{roomId}", payload) [throws JsonProcessingException]
    PR->>R: PUBLISH channel=chat.{roomId}, json
  end

  rect rgba(255,245,230,0.5)
    R-->>RS: Message on chat/* (PatternTopic)
    RS->>ST: convertAndSend(/chat/{id}, parsedMessage)
    ST-->>SUB: Broadcast
  end

Loading

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Possibly related PRs

• feat(chat): 채팅방 채팅 메세지 전달 로직 변경 (#78) #148: ChatRedisPublisher와 ChatMessagingController의 pub/sub 흐름 수정과 토픽/페이로드 처리 변경이 중복 영역입니다.
• feat(chat): 채팅방 채팅 메세지 전달 시간지연 디버깅 (#78) #152: ChatRedisPublisher.publishToRoom 시그니처 및 발행 동작 변경과 직접적으로 일치합니다.
• RedisConfig.java 관련 수정 #22: RedisConfig/RedisSubscriber의 구독 패턴 및 라우팅 변경과 동일한 코드 경로를 다룹니다.

Suggested labels

enhancement

Suggested reviewers

• hwichoi0317
• Kim-Jaehyun0328
• wjkim9
• roode1017

Poem

토끼는 채팅을 톡톡, 귀를 쫑긋 세우고
방 번호는 편지 속, 봉투에서 찾고요
chat.*로 뛰어가 퐁당, 메시지 전달하고
createdAt 반짝반짝, 시간도 챙겨 넣고
삐빅—노드들아 받아라! 오늘도 큐윙 🥕

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📥 Commits

Reviewing files that changed from the base of the PR and between c2ab8b4 and 7c14b7d.

📒 Files selected for processing (4)

• backendProject/src/main/java/likelion/mlb/backendProject/domain/chat/bus/ChatRedisPublisher.java (2 hunks)
• backendProject/src/main/java/likelion/mlb/backendProject/domain/chat/controller/ChatMessagingController.java (5 hunks)
• backendProject/src/main/java/likelion/mlb/backendProject/global/configuration/RedisConfig.java (1 hunks)
• backendProject/src/main/java/likelion/mlb/backendProject/global/redis/RedisSubscriber.java (1 hunks)

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