Merge pull request #19 from deepredk/feature/18

처음 요청되는 URL인지 Redis로 확인 및 처음 요청이라면 MySQL 저장

src/main/java/it/numble/hittracker/repository/IsCreatedUrlRepository.java

@@ -0,0 +1,17 @@
+package it.numble.hittracker.repository;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.stereotype.Repository;
+
+@Repository
+@RequiredArgsConstructor
+public class IsCreatedUrlRepository {
+    private final RedisTemplate<String, String> redisTemplate;
+
+    public Long create(String url) {
+        return redisTemplate
+                .opsForSet()
+                .add("created_url", url);
+    }
+}

src/main/java/it/numble/hittracker/service/HitTrackerService.java

@@ -3,6 +3,7 @@
 import it.numble.hittracker.controller.dto.UrlHitInfoDto;
 import it.numble.hittracker.entity.DailyHitLog;
 import it.numble.hittracker.entity.Url;
+import it.numble.hittracker.repository.IsCreatedUrlRepository;
 import it.numble.hittracker.repository.DailyHitLogRepository;
 import it.numble.hittracker.repository.HitRepository;
 import it.numble.hittracker.repository.UrlRepository;
@@ -21,6 +22,7 @@ public class HitTrackerService {
     private final UrlRepository urlRepository;
     private final DailyHitLogRepository dailyHitLogRepository;
     private final HitRepository hitRepository;
+    private final IsCreatedUrlRepository isCreatedUrlRepository;
 
     public UrlHitInfoDto getHitInfo(String url) {
         if (!isExistsUrl(url)) {
@@ -37,6 +39,10 @@ public UrlHitInfoDto getHitInfo(String url) {
     @Async
     public void hit(String url) {
         hitRepository.hit(url);
+
+        if (!isExistsUrl(url)) {
+            track(url);
+        }
     }
 
     public List<DailyHitLog> getStatistics(String url) {
@@ -68,12 +74,13 @@ private void deleteOldDailyHitLogs(LocalDate today) {
                 .forEach(dailyHitLogRepository::delete);
     }
 
+    @Async
     private void track(String url) {
         Url urlBeingTracked = new Url(url);
         urlRepository.save(urlBeingTracked);
     }
 
     private boolean isExistsUrl(String url) {
-        return urlRepository.existsByUrl(url);
+        return isCreatedUrlRepository.create(url) == 1L;
     }
 }