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""" Walkthrough
Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant PlaceController
participant PlaceService
participant PlaceRepository
Client->>PlaceController: GET /place/geocode?x=...&y=...
PlaceController->>PlaceService: getPlacesByGeocode(x, y)
PlaceService->>PlaceService: 좌표 문자열 파싱 및 ±0.0001 범위 계산
PlaceService->>PlaceRepository: findByCoordinateRange(xMin, xMax, yMin, yMax)
PlaceRepository-->>PlaceService: List<Place>
PlaceService->>PlaceController: List<PlaceDto>
PlaceController->>Client: ResponseEntity<List<PlaceDto>>
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Actionable comments posted: 2
🔭 Outside diff range comments (1)
src/main/java/jombi/freemates/controller/PlaceController.java (1)
102-102:⚠️ Potential issueAPI 문서를 업데이트해주세요.
반환 타입이 단일
PlaceDto에서List<PlaceDto>로 변경되었지만, API 문서는 여전히 단일 객체 반환을 설명하고 있습니다.- ## 반환값 (`ResponseEntity<PlaceDto>`) + ## 반환값 (`ResponseEntity<List<PlaceDto>>`) + 좌표가 일치하는 장소 목록:
🧹 Nitpick comments (2)
src/main/java/jombi/freemates/service/PlaceService.java (1)
165-174: 중복된 리스트 변환을 제거하세요.
.toList()로 이미 리스트를 생성한 후 다시 스트림으로 변환하여.collect(toList())를 사용하는 것은 불필요합니다.- .toList(); - - if (matched.isEmpty()) { - throw new CustomException(ErrorCode.PLACE_NOT_FOUND); - } - - // 최종 PlaceDto 리스트로 매핑하여 반환 - return matched.stream() - .map(this::convertToPlaceDto) - .collect(toList()); + .map(this::convertToPlaceDto) + .collect(toList()); + + if (matched.isEmpty()) { + throw new CustomException(ErrorCode.PLACE_NOT_FOUND); + } + + return matched;src/main/java/jombi/freemates/controller/PlaceController.java (1)
116-116: 메서드명을 복수형으로 변경하는 것이 좋습니다.메서드가 여러 장소를 반환하도록 변경되었으므로, 메서드명도 이에 맞게 복수형으로 변경하는 것이 일관성 있습니다.
- public ResponseEntity<List<PlaceDto>> getPlaceByGeocode( + public ResponseEntity<List<PlaceDto>> getPlacesByGeocode(
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| // DB에서 일단 모든 Place를 조회해 온 뒤(규모가 크지 않다면 충분히 괜찮음), | ||
| // 또는 범위 쿼리를 쓰려면 PlaceRepository에 추가 커스텀 메서드를 만들어도 됨. | ||
| List<Place> allPlaces = placeRepository.findAll(); | ||
|
|
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🛠️ Refactor suggestion
성능 개선이 필요합니다.
모든 장소를 메모리로 로드하여 필터링하는 방식은 데이터가 증가할수록 성능 문제를 야기할 수 있습니다. 데이터베이스에서 범위 쿼리를 사용하여 필요한 데이터만 조회하는 것이 효율적입니다.
PlaceRepository에 범위 검색 메서드를 추가하는 것을 권장합니다:
// PlaceRepository에 추가
@Query("SELECT p FROM Place p WHERE " +
"CAST(p.x AS double) BETWEEN :xMin AND :xMax AND " +
"CAST(p.y AS double) BETWEEN :yMin AND :yMax")
List<Place> findByCoordinateRange(@Param("xMin") double xMin,
@Param("xMax") double xMax,
@Param("yMin") double yMin,
@Param("yMax") double yMax);그리고 서비스 메서드에서:
- List<Place> allPlaces = placeRepository.findAll();
+ // 반올림 오차를 고려한 범위 계산 (예: ±0.0005)
+ double tolerance = 0.0005;
+ List<Place> candidates = placeRepository.findByCoordinateRange(
+ bdX.doubleValue() - tolerance,
+ bdX.doubleValue() + tolerance,
+ bdY.doubleValue() - tolerance,
+ bdY.doubleValue() + tolerance
+ );🤖 Prompt for AI Agents
In src/main/java/jombi/freemates/service/PlaceService.java around lines 140 to
143, the current code loads all Place entities into memory before filtering,
which causes performance issues as data grows. To fix this, add a custom range
query method in PlaceRepository that fetches only places within the specified
coordinate bounds using a JPQL query with parameters for xMin, xMax, yMin, and
yMax. Then, update the service method to call this new repository method instead
of findAll(), ensuring only relevant data is retrieved from the database.
PR 빌드 검증 결과: ✅ 빌드 성공빌드 검증이 완료되었습니다. |
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Actionable comments posted: 1
🧹 Nitpick comments (1)
src/main/java/jombi/freemates/repository/PlaceRepository.java (1)
52-53: NULL 값 처리를 고려해보세요.x, y 컬럼이 NULL일 경우 CAST 연산이 실패할 수 있습니다. 안정성을 위해 NULL 체크를 추가하는 것을 권장합니다.
-"WHERE CAST(p.x AS double precision) BETWEEN :xMin AND :xMax " + -" AND CAST(p.y AS double precision) BETWEEN :yMin AND :yMax", +"WHERE p.x IS NOT NULL AND p.y IS NOT NULL " + +" AND CAST(p.x AS double precision) BETWEEN :xMin AND :xMax " + +" AND CAST(p.y AS double precision) BETWEEN :yMin AND :yMax",
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🔇 Additional comments (1)
src/main/java/jombi/freemates/repository/PlaceRepository.java (1)
3-3: 임포트 추가가 적절합니다.새로운 메서드의 반환 타입에 필요한 List 임포트가 올바르게 추가되었습니다.
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| @Query( | ||
| value = "SELECT * " + | ||
| "FROM place p " + | ||
| "WHERE CAST(p.x AS double precision) BETWEEN :xMin AND :xMax " + | ||
| " AND CAST(p.y AS double precision) BETWEEN :yMin AND :yMax", | ||
| nativeQuery = true | ||
| ) | ||
| List<Place> findByCoordinateRange( | ||
| @Param("xMin") double xMin, | ||
| @Param("xMax") double xMax, | ||
| @Param("yMin") double yMin, | ||
| @Param("yMax") double yMax | ||
| ); |
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🛠️ Refactor suggestion
성능 최적화를 위한 개선사항을 고려해보세요.
네이티브 쿼리가 올바르게 구현되었지만, 다음 사항들을 개선하면 더 좋을 것 같습니다:
- 인덱스 활용 제한: WHERE 절에서 CAST 사용으로 인해 x, y 컬럼의 인덱스 활용이 제한될 수 있습니다.
- 데이터 타입 불일치: 좌표가 문자열로 저장되어 있어 매번 형변환이 필요한 상황입니다.
다음 중 하나의 방법을 고려해보세요:
방법 1: 복합 인덱스 추가
CREATE INDEX idx_place_coordinates_cast ON place
(CAST(x AS double precision), CAST(y AS double precision));방법 2 (권장): 데이터 모델 개선
Place 엔티티에 double 타입의 좌표 필드를 추가하여 형변환 오버헤드를 제거:
@Query("SELECT p FROM Place p " +
"WHERE p.xCoord BETWEEN :xMin AND :xMax " +
" AND p.yCoord BETWEEN :yMin AND :yMax")
List<Place> findByCoordinateRange(
@Param("xMin") double xMin,
@Param("xMax") double xMax,
@Param("yMin") double yMin,
@Param("yMax") double yMax
);🤖 Prompt for AI Agents
In src/main/java/jombi/freemates/repository/PlaceRepository.java around lines 49
to 61, the current native query casts string coordinates to double, which
prevents index usage and hurts performance. To fix this, update the Place entity
to include double-typed coordinate fields (e.g., xCoord and yCoord) and modify
the query to use these fields directly without casting. Replace the native query
with a JPQL query filtering on the double fields to eliminate casting overhead
and enable efficient index utilization.
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#124
Summary by CodeRabbit
신규 기능
버그 수정
기능 개선