From 218aad392373d16ef679e92f49fd51e0a8c33bb6 Mon Sep 17 00:00:00 2001
From: seokjin8678 <seokjin8678@gmail.com>
Date: Wed, 17 Apr 2024 02:54:42 +0900
Subject: [PATCH] =?UTF-8?q?feat:=20CacheStatsLogger=20=EC=B6=94=EA=B0=80?=
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- 어플리케이션 종료 시점에 캐시 스탯 로깅
---
 .../common/cache/CacheStatsLogger.java        | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 backend/src/main/java/com/festago/common/cache/CacheStatsLogger.java

diff --git a/backend/src/main/java/com/festago/common/cache/CacheStatsLogger.java b/backend/src/main/java/com/festago/common/cache/CacheStatsLogger.java
new file mode 100644
index 000000000..215bbe8b8
--- /dev/null
+++ b/backend/src/main/java/com/festago/common/cache/CacheStatsLogger.java
@@ -0,0 +1,28 @@
+package com.festago.common.cache;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.cache.Cache;
+import org.springframework.cache.CacheManager;
+import org.springframework.cache.caffeine.CaffeineCache;
+import org.springframework.context.event.ContextClosedEvent;
+import org.springframework.context.event.EventListener;
+import org.springframework.stereotype.Component;
+
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class CacheStatsLogger {
+
+    private final CacheManager cacheManager;
+
+    @EventListener(ContextClosedEvent.class)
+    public void logCacheStats() {
+        for (String cacheName : cacheManager.getCacheNames()) {
+            Cache cache = cacheManager.getCache(cacheName);
+            if (cache instanceof CaffeineCache caffeineCache) {
+                log.info("CacheName={} CacheStats={}", cacheName, caffeineCache.getNativeCache().stats());
+            }
+        }
+    }
+}