Feat: redisKey로 키워드 리스트 조회 (#145)

* Feat: redisKey로 키워드 리스트 조회
IT-Pick · Aug 19, 2024 · aa54844 · aa54844
1 parent 062e6f2
commit aa54844
Showing 1 changed file with 13 additions and 0 deletions.
diff --git a/src/main/java/store/itpick/backend/util/Redis.java b/src/main/java/store/itpick/backend/util/Redis.java
@@ -252,4 +252,17 @@ private static int getWeight(String key) {
         }
         return -1;
     }
+
+    public List<String> getKeywordListByRedisKey(String redisKey) {
+        ZSetOperations<String, Object> zSetOperations = redisTemplate.opsForZSet();
+
+        if (zSetOperations.size(redisKey) < 10) {
+            return null;
+        }
+        List<String> keywordList = new ArrayList<>();
+        for (Object keyword : zSetOperations.reverseRange(redisKey, 0, 9)) {
+            keywordList.add((String) keyword);
+        }
+        return keywordList;
+    }
 }