Feat/137 event caching (#140)

* feat: enable cache when get events

* test: check cache exist

* docs: update open-api.yaml

---------

Co-authored-by: Git Actions <no-reply@github.com>

build.gradle.kts

@@ -52,6 +52,7 @@ dependencies {
     implementation("org.springframework.boot:spring-boot-starter-data-jpa")
     implementation("org.springframework.boot:spring-boot-starter-web")
     implementation("org.springframework.boot:spring-boot-starter-jdbc")
+    implementation("org.springframework.boot:spring-boot-starter-cache")
     implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
     implementation("org.jetbrains.kotlin:kotlin-reflect")
     implementation("com.ninja-squad:springmockk:4.0.2")

docs/open-api.yaml

@@ -607,12 +607,12 @@ components:
           type: string
         isEnabled:
           type: boolean
+        username:
+          type: string
         authorities:
           type: array
           items:
             $ref: '#/components/schemas/GrantedAuthority'
-        username:
-          type: string
         isAccountNonExpired:
           type: boolean
         isAccountNonLocked:

src/integrationTest/kotlin/com/group4/ticketingservice/Event/EventControllerTest.kt

@@ -0,0 +1,33 @@
+package com.group4.ticketingservice.Event
+
+import com.group4.ticketingservice.AbstractIntegrationTest
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc
+import org.springframework.cache.CacheManager
+import org.springframework.test.web.servlet.MockMvc
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders
+
+@AutoConfigureMockMvc
+class EventControllerTest : AbstractIntegrationTest() {
+    @Autowired
+    private lateinit var mockMvc: MockMvc
+
+    @Autowired
+    private lateinit var cacheManager: CacheManager
+
+    @Test
+    fun `getEvents caches the result`() {
+        mockMvc.perform(
+            MockMvcRequestBuilders.get("/events")
+                .param("page", "0")
+                .param("size", "10")
+
+        )
+
+        val cache = cacheManager.getCache("getEvents")
+        val cachedValue = cache!!.get(0)
+
+        assert(cachedValue != null)
+    }
+}

src/main/kotlin/com/group4/ticketingservice/TicketingserviceApplication.kt

@@ -2,10 +2,11 @@ package com.group4.ticketingservice
 
 import org.springframework.boot.autoconfigure.SpringBootApplication
 import org.springframework.boot.runApplication
+import org.springframework.cache.annotation.EnableCaching
 
 @SpringBootApplication
+@EnableCaching
 class TicketingserviceApplication
-
 fun main(args: Array<String>) {
     runApplication<TicketingserviceApplication>(*args)
 }

src/main/kotlin/com/group4/ticketingservice/config/CacheConfig.kt

@@ -0,0 +1,23 @@
+package com.group4.ticketingservice.config
+
+import org.springframework.cache.CacheManager
+import org.springframework.cache.annotation.EnableCaching
+import org.springframework.cache.concurrent.ConcurrentMapCache
+import org.springframework.cache.support.SimpleCacheManager
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+
+@Configuration
+@EnableCaching
+class CacheConfig {
+    @Bean
+    fun cacheManager(): CacheManager {
+        val simpleCacheManager = SimpleCacheManager()
+        simpleCacheManager.setCaches(
+            listOf(
+                ConcurrentMapCache("getEvents")
+            )
+        )
+        return simpleCacheManager
+    }
+}

src/main/kotlin/com/group4/ticketingservice/controller/EventController.kt

@@ -8,6 +8,7 @@ import io.swagger.v3.oas.annotations.Hidden
 import jakarta.servlet.http.HttpServletRequest
 import jakarta.validation.Valid
 import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.cache.annotation.Cacheable
 import org.springframework.data.domain.Page
 import org.springframework.data.domain.Pageable
 import org.springframework.data.domain.Sort
@@ -82,6 +83,7 @@ class EventController @Autowired constructor(
     }
 
     @GetMapping
+    @Cacheable(value = ["getEvents"], key = "#pageable.pageNumber")
     fun getEvents(
         request: HttpServletRequest,
         @RequestParam(required = false) name: String?,

src/test/kotlin/com/group4/ticketingservice/event/EventControllerTest.kt

@@ -14,6 +14,7 @@ import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.extension.ExtendWith
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest
+import org.springframework.cache.CacheManager
 import org.springframework.context.annotation.ComponentScan
 import org.springframework.context.annotation.FilterType
 import org.springframework.data.domain.Page
@@ -34,11 +35,12 @@ import java.time.OffsetDateTime
 @WebMvcTest(
     EventController::class,
     includeFilters = arrayOf(
-        ComponentScan.Filter(value = [(SecurityConfig::class), (TokenProvider::class), (JwtAuthorizationEntryPoint::class)], type = FilterType.ASSIGNABLE_TYPE)
+        ComponentScan.Filter(value = [(SecurityConfig::class), (TokenProvider::class), (JwtAuthorizationEntryPoint::class), (CacheManager::class)], type = FilterType.ASSIGNABLE_TYPE)
     )
 )
 class EventControllerTest(
-    @Autowired val mockMvc: MockMvc
+    @Autowired val mockMvc: MockMvc,
+    @Autowired val cacheManager: CacheManager
 ) {
     @MockkBean
     private lateinit var eventService: EventService
@@ -178,6 +180,7 @@ class EventControllerTest(
     @Test
     fun `GET List of events should return list of events with pagination and sorting`() {
         // Given
+
         every { eventService.getEvents(any(), any()) } returns page
 
         // When