Feat: caching for bin location address (#26)

build.gradle

@@ -31,6 +31,7 @@ dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-data-jdbc'
     implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
     runtimeOnly 'com.mysql:mysql-connector-j'
+    implementation 'org.springframework.boot:spring-boot-starter-cache'
 
     // lombok
     compileOnly 'org.projectlombok:lombok'

src/main/java/com/drugbox/common/config/CacheConfig.java

@@ -0,0 +1,16 @@
+package com.drugbox.common.config;
+
+import org.springframework.cache.CacheManager;
+import org.springframework.cache.annotation.EnableCaching;
+import org.springframework.cache.concurrent.ConcurrentMapCacheManager;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@EnableCaching
+public class CacheConfig {
+    @Bean
+    public CacheManager cacheManager() {
+        return new ConcurrentMapCacheManager("addresses");
+    }
+}

src/main/java/com/drugbox/service/MapService.java

@@ -20,6 +20,7 @@
 import org.json.simple.parser.JSONParser;
 import org.json.simple.parser.ParseException;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.cache.annotation.Cacheable;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -132,13 +133,15 @@ public void saveDrugBinLocations(){
         }
     }
 
+    @Cacheable("addresses")
     public List<BinLocationResponse> getSeoulDrugBinLocations(){
         List<BinLocation> binLocations = binLocationRepository.findAll();
         return binLocations.stream()
                 .map(bin -> BinLocationToBinLocationResponse(bin))
                 .collect(Collectors.toList());
     }
 
+    @Cacheable("addresses")
     public List<BinLocationResponse> getDivisionDrugBinLocations(String addrLvl1, String addrLvl2){
         List<BinLocation> binLocations = new ArrayList<>();
         if(addrLvl2 == null){

src/test/java/com/drugbox/CacheTest.java

@@ -0,0 +1,45 @@
+package com.drugbox;
+
+import com.drugbox.service.MapService;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.cache.CacheManager;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.junit.Assert.assertTrue;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class CacheTest {
+
+    @Autowired
+    MapService mapService;
+
+    @Autowired
+    private CacheManager cacheManager;
+
+    @BeforeEach
+    public void setUp() {
+        cacheManager.getCache("addresses").clear();
+        mapService.saveSeoulDrugBinLocations();
+    }
+
+    @Test
+    public void 서울_주소_캐싱_테스트(){
+        long start = System.currentTimeMillis();
+        mapService.getSeoulDrugBinLocations();
+        long executionTimeWithoutCache = System.currentTimeMillis() - start;
+        System.out.println("Execution time without cache: " + executionTimeWithoutCache + "ms");
+
+        start = System.currentTimeMillis();
+        mapService.getSeoulDrugBinLocations();
+        long executionTimeWithCache = System.currentTimeMillis() - start;
+        System.out.println("Execution time with cache: " + executionTimeWithCache + "ms");
+
+        assertTrue("Execution time with cache should be less than without cache",
+                executionTimeWithoutCache > executionTimeWithCache);
+    }
+}