지도 관련 API 3개 구현 #44
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| Original file line number | Diff line number | Diff line change |
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| package busanVibe.busan.domain.place.service | ||
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| import busanVibe.busan.domain.place.domain.Place | ||
| import busanVibe.busan.domain.place.domain.PlaceImage | ||
| import busanVibe.busan.domain.place.dto.PlaceMapResponseDTO | ||
| import busanVibe.busan.domain.place.enums.PlaceType | ||
| import busanVibe.busan.domain.place.repository.PlaceRepository | ||
| import busanVibe.busan.domain.review.domain.Review | ||
| import busanVibe.busan.domain.review.domain.repository.ReviewRepository | ||
| import busanVibe.busan.global.apiPayload.code.status.ErrorStatus | ||
| import busanVibe.busan.global.apiPayload.exception.handler.ExceptionHandler | ||
| import org.slf4j.LoggerFactory | ||
| import org.springframework.stereotype.Service | ||
| import org.springframework.transaction.annotation.Transactional | ||
| import java.math.BigDecimal | ||
| import java.math.RoundingMode | ||
| import java.time.LocalDateTime | ||
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| @Service | ||
| class PlaceCongestionQueryService( | ||
| private val placeRepository: PlaceRepository, | ||
| private val placeRedisUtil: PlaceRedisUtil, | ||
| private val reviewRepository: ReviewRepository, | ||
| ) { | ||
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| private val latitudeRange: Double = 0.05 | ||
| private val longitudeRange: Double = 0.05 | ||
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| private val log = LoggerFactory.getLogger(PlaceCongestionQueryService::class.java) | ||
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| @Transactional(readOnly = true) | ||
| fun getMap(type: PlaceType?, latitude: Double, longitude: Double): PlaceMapResponseDTO.MapListDto{ | ||
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| // Place -> name, type, latitude, longitude | ||
| // Redis -> congestion level | ||
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| // Place 목록 조회 | ||
| val placeList = placeRepository.findPlacesByLocationAndType( | ||
| BigDecimal(latitude - latitudeRange).setScale(6, RoundingMode.HALF_UP), | ||
| BigDecimal(latitude + latitudeRange).setScale(6, RoundingMode.HALF_UP), | ||
| BigDecimal(longitude - longitudeRange).setScale(6, RoundingMode.HALF_UP), | ||
| BigDecimal(longitude + longitudeRange).setScale(6, RoundingMode.HALF_UP), | ||
| type | ||
| ) | ||
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| // DTO 변환 | ||
| val placeDtoList :List<PlaceMapResponseDTO.PlaceMapInfoDto> = placeList.map { | ||
| PlaceMapResponseDTO.PlaceMapInfoDto( | ||
| placeId = it.id, | ||
| name = it.name, | ||
| type = it.type.capitalEnglish, | ||
| latitude = it.latitude, | ||
| longitude = it.longitude, | ||
| congestionLevel = placeRedisUtil.getRedisCongestion(it.id) | ||
| ) | ||
| } | ||
|
Comment on lines
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There was a problem hiding this comment. 🛠️ Refactor suggestion Potential N+1 performance issue with Redis calls The current implementation makes individual Redis calls for each place when fetching congestion levels. For large result sets, this could impact performance. Consider implementing a batch fetch method in // In PlaceRedisUtil
fun getRedisCongestionBatch(placeIds: List<Long>): Map<Long, Int> {
val keys = placeIds.map { "place:congestion:$it" }
val values = redisTemplate.opsForValue().multiGet(keys)
return placeIds.zip(values ?: emptyList()).associate { (id, value) ->
id to (value?.toIntOrNull() ?: generateAndStoreCongestion(id))
}
}Then update the mapping: + val congestionMap = placeRedisUtil.getRedisCongestionBatch(placeList.map { it.id })
val placeDtoList :List<PlaceMapResponseDTO.PlaceMapInfoDto> = placeList.map {
PlaceMapResponseDTO.PlaceMapInfoDto(
placeId = it.id,
name = it.name,
type = it.type.capitalEnglish,
latitude = it.latitude,
longitude = it.longitude,
- congestionLevel = placeRedisUtil.getRedisCongestion(it.id)
+ congestionLevel = congestionMap[it.id] ?: 0
)
}🤖 Prompt for AI Agents |
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| return PlaceMapResponseDTO.MapListDto(placeDtoList) | ||
| } | ||
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| @Transactional(readOnly = true) | ||
| fun getPlaceDefault(placeId: Long): PlaceMapResponseDTO.PlaceDefaultInfoDto{ | ||
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| // Place -> name, imageList, address, openTime | ||
| // Review -> grade, count | ||
| // Image -> list | ||
| // Redis -> congestion | ||
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| // 명소 조회 | ||
| val place: Place? = placeRepository.findByIdWithReviewAndImage(placeId) | ||
| place?: throw ExceptionHandler(ErrorStatus.PLACE_NOT_FOUND) | ||
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| // 이미지 조회 | ||
| val placeImageSet: Set<PlaceImage> = place.placeImages | ||
| val placeImageList = placeImageSet.toList() | ||
| .sortedBy { it.createdAt } | ||
| .map { it.imgUrl } | ||
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| // 리뷰 조회 | ||
| val reviewSet: Set<Review> = reviewRepository.findByPlace(place).toSet() | ||
| val grade = if (reviewSet.isEmpty()) 0f | ||
| else reviewSet.map { it.score }.average().toFloat() | ||
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| return PlaceMapResponseDTO.PlaceDefaultInfoDto( | ||
| id = place.id, | ||
| name = place.name, | ||
| congestionLevel = placeRedisUtil.getRedisCongestion(place.id), | ||
| grade = grade, | ||
| reviewAmount = reviewSet.size, | ||
| latitude = place.latitude, | ||
| longitude = place.longitude, | ||
| address = place.address, | ||
| isOpen = true, | ||
|
There was a problem hiding this comment. Hardcoded isOpen value doesn't reflect actual status The Consider implementing actual open/closed logic based on the place's open times: isOpen = determineIfOpen(place.openTimes, LocalDateTime.now())🤖 Prompt for AI Agents |
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| imgList = placeImageList | ||
| ) | ||
| } | ||
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| @Transactional(readOnly = true) | ||
| fun getCongestion(placeId: Long): PlaceMapResponseDTO.PlaceCongestionDto { | ||
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| val current = LocalDateTime.now() | ||
| log.info("현재 시간: ${current}시") | ||
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| val roundedBase = (current.hour / 3) * 3 | ||
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| // 최근 6개 3시간 단위 시간 생성 (기준시간 포함 총 7개) | ||
| val hours = (6 downTo 0).map { i -> (roundedBase - i * 3 + 24) % 24 } | ||
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| log.info("배열 담기 시작") | ||
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| val byTimePercent: List<Float> = hours.map { hour -> | ||
| val adjustedDateTime = current.withHour(hour) | ||
| .withMinute(0).withSecond(0).withNano(0) | ||
| .let { | ||
| if (hour > current.hour) it.minusDays(1) else it | ||
| } | ||
| placeRedisUtil.getTimeCongestion(placeId, adjustedDateTime) | ||
| } | ||
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| log.info("배열 담기 끝") | ||
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| return PlaceMapResponseDTO.PlaceCongestionDto( | ||
| standardTime = roundedBase, | ||
| realTimeCongestionLevel = placeRedisUtil.getTimeCongestion(placeId, current).toInt(), | ||
| byTimePercent = byTimePercent | ||
| ) | ||
| } | ||
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| } | ||
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Fix parameter name typo
There's a typo in the parameter name:
longtitudeshould belongitude.Also update the service call:
📝 Committable suggestion
🤖 Prompt for AI Agents