추가: 문화생활 인기 검색어 리스트 조회

src/main/java/project/backend/domain/culturalevent/controller/CulturalEventController.java

@@ -15,6 +15,7 @@
 import project.backend.domain.culturalevent.service.CulturalEventService;
 import project.backend.domain.culturalevnetcategory.entity.CategoryTitle;
 import project.backend.domain.culturalevnetinfo.service.CulturalEventInfoService;
+import project.backend.domain.keyword.dto.CulturalEventPopularKeywordListDto;
 import project.backend.domain.keyword.dto.CulturalEventSearchKeywordListDto;
 import project.backend.domain.keyword.entity.CulturalEventSearchKeyword;
 import project.backend.domain.keyword.mapper.CulturalEventSearchKeywordMapper;
@@ -126,7 +127,7 @@ public ResponseEntity unLikeCulturalEvent(@Positive @PathVariable Long id) {
     }
 
 
-    @ApiOperation(value = "문화생활 최근 검색어")
+    @ApiOperation(value = "문화생활 최근 검색어 리스트 조회")
     @GetMapping("/recent-keywords")
     public ResponseEntity<List<CulturalEventSearchKeywordListDto>> getCulturalEventRecentKeywordList() {
         // Get Recent Keywords
@@ -150,6 +151,13 @@ public ResponseEntity deleteCulturalEventRecentKeyword(@Positive @PathVariable L
         culturalEventSearchKeywordService.deleteCulturalEventSearchKeyword(id);
         return ResponseEntity.status(HttpStatus.NO_CONTENT).body(null);
     }
+
+    @ApiOperation(value = "문화생활 인기 검색어 리스트 조회")
+    @GetMapping("/popular-keywords")
+    public ResponseEntity<List<CulturalEventPopularKeywordListDto>> getCulturalEventPopularKeywordList() {
+        List<CulturalEventPopularKeywordListDto> culturalEventSearchKeywordListDtoList = culturalEventSearchKeywordService.getCulturalEventPopularKeywordList();
+        return ResponseEntity.status(HttpStatus.OK).body(culturalEventSearchKeywordListDtoList);
+    }
 }
 
 

src/main/java/project/backend/domain/keyword/dto/CulturalEventPopularKeywordListDto.java

@@ -0,0 +1,13 @@
+package project.backend.domain.keyword.dto;
+
+import lombok.*;
+
+@Getter
+@Setter
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class CulturalEventPopularKeywordListDto {
+    private Integer ordering;
+    private String keyword;
+}

src/main/java/project/backend/domain/keyword/repository/CulturalEventSearchKeywordRepository.java

@@ -1,9 +1,13 @@
 package project.backend.domain.keyword.repository;
 
+import io.lettuce.core.dynamic.annotation.Param;
+import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
 import project.backend.domain.keyword.entity.CulturalEventSearchKeyword;
 import project.backend.domain.member.entity.Member;
 
+import java.time.LocalDateTime;
 import java.util.List;
 import java.util.Optional;
 
@@ -12,4 +16,7 @@ public interface CulturalEventSearchKeywordRepository extends JpaRepository<Cult
     List<CulturalEventSearchKeyword> findByIsRecentTrueAndMemberOrderByUpdatedDateDesc(Member member);
 
     Optional<CulturalEventSearchKeyword> findFirstByMemberAndKeywordAndIsRecentTrue(Member member, String keyword);
+
+    @Query("SELECT k.keyword, COUNT(k) AS freq FROM CulturalEventSearchKeyword k WHERE k.updatedDate >= :oneHourAgo GROUP BY k.keyword ORDER BY freq DESC")
+    List<Object[]> findTopKeywordsWithinOneHour(@Param("oneHourAgo") LocalDateTime oneHourAgo, Pageable pageable);
 }

src/main/java/project/backend/domain/keyword/service/CulturalEventSearchKeywordService.java

@@ -1,8 +1,10 @@
 package project.backend.domain.keyword.service;
 
 import lombok.RequiredArgsConstructor;
+import org.springframework.data.domain.PageRequest;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
+import project.backend.domain.keyword.dto.CulturalEventPopularKeywordListDto;
 import project.backend.domain.keyword.entity.CulturalEventSearchKeyword;
 import project.backend.domain.keyword.repository.CulturalEventSearchKeywordRepository;
 import project.backend.domain.member.entity.Member;
@@ -15,6 +17,7 @@
 import java.util.List;
 import java.util.Optional;
 import java.util.stream.Collectors;
+import java.util.stream.IntStream;
 
 @Service
 @RequiredArgsConstructor
@@ -86,9 +89,25 @@ public void deleteCulturalEventSearchKeyword(Long id) {
         culturalEventSearchKeyword.isRecent = false;
     }
 
+    /**
+     * 시간별 인기 검색어 리스트
+     *
+     * @return List
+     */
+    public List<CulturalEventPopularKeywordListDto> getCulturalEventPopularKeywordList() {
+        // Variables
+        LocalDateTime oneHourAgo = LocalDateTime.now().minusHours(1);
+        PageRequest pageRequest = PageRequest.of(0, 7); // 첫 번째 페이지, 7개의 결과
+
+        // Get Keywords
+        List<Object[]> topKeywords = culturalEventSearchKeywordRepository.findTopKeywordsWithinOneHour(oneHourAgo, pageRequest);
+
+        // Make Dto List
+        return IntStream.range(0, topKeywords.size())
+                .mapToObj(i -> CulturalEventPopularKeywordListDto.builder().ordering(i + 1).keyword((String) topKeywords.get(i)[0]).build())
+                .collect(Collectors.toList());
+    }
 
-    // 인기 키워드 생성(1시간 지난 키워드(is_deleted 중에서) 삭제)
-    // TODO : 아직 개발하지 않았음.
 
     // 키워드 검증
     private CulturalEventSearchKeyword verifiedCulturalEventSearchKeyword(Long id) {