✏️ Fix: 캐시 키 변경 & 커스텀 캐시 Evict 로직 구현

src/main/java/briefing/briefing/api/BriefingV2Api.java

@@ -33,7 +33,7 @@ public class BriefingV2Api {
 
     @GetMapping("/briefings")
     @Operation(summary = "03-01Briefing \uD83D\uDCF0  브리핑 목록 조회 V2", description = "")
-    @Cacheable(value = "findBriefingsV2", key = "#params.toString()")
+    @Cacheable(value = "findBriefingsV2", key = "#params.getType()")
     public CommonResponse<BriefingResponseDTO.BriefingPreviewListDTOV2> findBriefingsV2(
             @ParameterObject @ModelAttribute BriefingRequestParam.BriefingPreviewListParam params) {
         List<Briefing> briefingList = briefingQueryService.findBriefings(params, APIVersion.V2);

src/main/java/briefing/common/aop/annotation/CacheEvictByBriefingId.java

@@ -0,0 +1,14 @@
+package briefing.common.aop.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target(ElementType.METHOD)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface CacheEvictByBriefingId {
+    String value(); // 캐시 이름
+
+    String briefingId(); // 캐시 키를 위한 briefingId
+}

src/main/java/briefing/common/aop/aspect/CacheEvictByBriefingIdAspect.java

@@ -0,0 +1,66 @@
+package briefing.common.aop.aspect;
+
+import java.util.Optional;
+
+import org.aspectj.lang.JoinPoint;
+import org.aspectj.lang.annotation.After;
+import org.aspectj.lang.annotation.Aspect;
+import org.aspectj.lang.reflect.MethodSignature;
+import org.springframework.cache.Cache;
+import org.springframework.cache.CacheManager;
+import org.springframework.expression.Expression;
+import org.springframework.expression.spel.standard.SpelExpressionParser;
+import org.springframework.expression.spel.support.StandardEvaluationContext;
+import org.springframework.stereotype.Component;
+
+import briefing.briefing.domain.Briefing;
+import briefing.briefing.domain.repository.BriefingRepository;
+import briefing.common.aop.annotation.CacheEvictByBriefingId;
+import lombok.RequiredArgsConstructor;
+
+@Aspect
+@Component
+@RequiredArgsConstructor
+public class CacheEvictByBriefingIdAspect {
+
+    private final BriefingRepository briefingRepository;
+    private final CacheManager cacheManager;
+    private SpelExpressionParser spelExpressionParser = new SpelExpressionParser();
+    private StandardEvaluationContext evaluationContext = new StandardEvaluationContext();
+
+    @After(value = "@annotation(cacheEvictByBriefingId)")
+    public void evictCache(JoinPoint joinPoint, CacheEvictByBriefingId cacheEvictByBriefingId) {
+        System.out.println("AOP CALL!!!");
+
+        String briefingIdExpression = cacheEvictByBriefingId.briefingId();
+        Long briefingId = evaluateExpression(joinPoint, briefingIdExpression, Long.class);
+
+        Optional<Briefing> optionalBriefing = briefingRepository.findById(briefingId);
+
+        if (optionalBriefing.isPresent()) {
+            Briefing briefing = optionalBriefing.get();
+            String cacheKey = briefing.getType().name();
+            Cache cache = cacheManager.getCache(cacheEvictByBriefingId.value());
+            System.out.println(cacheEvictByBriefingId.value());
+            System.out.println(cacheKey);
+            System.out.println(cache);
+            if (cache != null) {
+                cache.evict(cacheKey);
+            }
+        }
+    }
+
+    private <T> T evaluateExpression(
+            JoinPoint joinPoint, String expression, Class<T> desiredResultType) {
+        MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature();
+        Object[] args = joinPoint.getArgs();
+        String[] parameterNames = methodSignature.getParameterNames();
+
+        for (int i = 0; i < parameterNames.length; i++) {
+            evaluationContext.setVariable(parameterNames[i], args[i]);
+        }
+
+        Expression parsedExpression = spelExpressionParser.parseExpression(expression);
+        return parsedExpression.getValue(evaluationContext, desiredResultType);
+    }
+}

src/main/java/briefing/scrap/api/ScrapV2Api.java

@@ -2,9 +2,9 @@
 
 import java.util.List;
 
-import org.springframework.cache.annotation.CacheEvict;
 import org.springframework.web.bind.annotation.*;
 
+import briefing.common.aop.annotation.CacheEvictByBriefingId;
 import briefing.common.response.CommonResponse;
 import briefing.scrap.application.ScrapCommandService;
 import briefing.scrap.application.ScrapQueryService;
@@ -23,7 +23,7 @@ public class ScrapV2Api {
     private final ScrapQueryService scrapQueryService;
     private final ScrapCommandService scrapCommandService;
 
-    @CacheEvict(value = "findBriefingsV2", allEntries = true)
+    @CacheEvictByBriefingId(value = "findBriefingsV2", briefingId = "#request.getBriefingId()")
     @Operation(summary = "05-01 Scrap📁 스크랩하기 V2", description = "브리핑을 스크랩하는 API입니다.")
     @PostMapping("/scraps/briefings")
     public CommonResponse<ScrapResponse.CreateDTOV2> createV2(
@@ -33,7 +33,7 @@ public CommonResponse<ScrapResponse.CreateDTOV2> createV2(
         return CommonResponse.onSuccess(ScrapConverter.toCreateDTOV2(createdScrap, scrapCount));
     }
 
-    @CacheEvict(value = "findBriefingsV2", allEntries = true)
+    @CacheEvictByBriefingId(value = "findBriefingsV2", briefingId = "#briefingId")
     @Operation(summary = "05-02 Scrap📁 스크랩 취소 V2", description = "스크랩을 취소하는 API입니다.")
     @DeleteMapping("/scraps/briefings/{briefingId}/members/{memberId}")
     public CommonResponse<ScrapResponse.DeleteDTOV2> deleteV2(