SSE 아바타 목록 조회 시 전체 엔티티 대신 프로젝션 사용

src/main/kotlin/team/darkmoderap/aikon/domain/avatar/repository/AvatarRepository.kt

@@ -5,7 +5,7 @@ import org.springframework.data.jpa.repository.Query
 import team.darkmoderap.aikon.domain.avatar.entity.AvatarEntity
 
 interface AvatarRepository : JpaRepository<AvatarEntity, Long> {
-    fun findAllByOrderByIdAsc(): List<AvatarEntity>
+    fun findAllByOrderByIdAsc(): List<AvatarSummaryProjection>
 
     fun findByPassUrl(passUrl: String): AvatarEntity?
 

src/main/kotlin/team/darkmoderap/aikon/domain/avatar/repository/AvatarSummaryProjection.kt

@@ -0,0 +1,19 @@
+package team.darkmoderap.aikon.domain.avatar.repository
+
+import team.darkmoderap.aikon.domain.avatar.entity.enum.AgeRange
+import team.darkmoderap.aikon.domain.avatar.entity.enum.Gender
+import team.darkmoderap.aikon.domain.avatar.entity.enum.GenerationStatus
+import team.darkmoderap.aikon.domain.avatar.entity.enum.Style
+import java.time.Instant
+
+interface AvatarSummaryProjection {
+    val id: Long
+    val nickname: String
+    val style: Style
+    val gender: Gender
+    val ageRange: AgeRange
+    val generationStatus: GenerationStatus
+    val imageUrl: String?
+    val passUrl: String?
+    val createdAt: Instant
+}

src/main/kotlin/team/darkmoderap/aikon/domain/avatar/service/SubscribeAvatarChangesServiceImpl.kt

@@ -14,10 +14,10 @@ import org.springframework.transaction.event.TransactionalEventListener
 import org.springframework.transaction.support.TransactionTemplate
 import org.springframework.web.servlet.mvc.method.annotation.SseEmitter
 import team.darkmoderap.aikon.domain.avatar.dto.AvatarChangeResDto
-import team.darkmoderap.aikon.domain.avatar.entity.AvatarEntity
 import team.darkmoderap.aikon.domain.avatar.event.AvatarListChangedEvent
 import team.darkmoderap.aikon.domain.avatar.event.AvatarSseSubscribedEvent
 import team.darkmoderap.aikon.domain.avatar.repository.AvatarRepository
+import team.darkmoderap.aikon.domain.avatar.repository.AvatarSummaryProjection
 import team.darkmoderap.aikon.global.common.error.AikonException
 import team.darkmoderap.aikon.global.common.error.ErrorCode
 import java.util.concurrent.CopyOnWriteArrayList
@@ -127,7 +127,7 @@ class SubscribeAvatarChangesServiceImpl(
         }
     }
 
-    private fun AvatarEntity.toChangeResDto(): AvatarChangeResDto =
+    private fun AvatarSummaryProjection.toChangeResDto(): AvatarChangeResDto =
         AvatarChangeResDto(
             id = id,
             nickname = nickname,

src/test/kotlin/team/darkmoderap/aikon/domain/avatar/service/SubscribeAvatarChangesServiceImplTest.kt

@@ -16,15 +16,16 @@ import org.springframework.transaction.PlatformTransactionManager
 import org.springframework.transaction.TransactionDefinition
 import org.springframework.transaction.TransactionStatus
 import org.springframework.web.servlet.mvc.method.annotation.SseEmitter
-import team.darkmoderap.aikon.domain.avatar.entity.AvatarEntity
 import team.darkmoderap.aikon.domain.avatar.entity.enum.AgeRange
 import team.darkmoderap.aikon.domain.avatar.entity.enum.Gender
 import team.darkmoderap.aikon.domain.avatar.entity.enum.GenerationStatus
 import team.darkmoderap.aikon.domain.avatar.entity.enum.Style
 import team.darkmoderap.aikon.domain.avatar.event.AvatarListChangedEvent
 import team.darkmoderap.aikon.domain.avatar.event.AvatarSseSubscribedEvent
 import team.darkmoderap.aikon.domain.avatar.repository.AvatarRepository
+import team.darkmoderap.aikon.domain.avatar.repository.AvatarSummaryProjection
 import team.darkmoderap.aikon.global.common.error.AikonException
+import java.time.Instant
 
 @ExtendWith(MockitoExtension::class)
 class SubscribeAvatarChangesServiceImplTest {
@@ -94,7 +95,7 @@ class SubscribeAvatarChangesServiceImplTest {
         fun `finds latest avatar list when event is received`() {
             // Given
             given(transactionManager.getTransaction(any(TransactionDefinition::class.java))).willReturn(transactionStatus)
-            given(avatarRepository.findAllByOrderByIdAsc()).willReturn(listOf(avatar()))
+            given(avatarRepository.findAllByOrderByIdAsc()).willReturn(listOf(avatarSummaryProjection()))
             subscribeAvatarChangesService.execute()
 
             // When
@@ -121,14 +122,17 @@ class SubscribeAvatarChangesServiceImplTest {
     }
 
     companion object {
-        private fun avatar(): AvatarEntity =
-            AvatarEntity(
-                nickname = "새아바타",
-                gender = Gender.FEMALE,
-                style = Style.GHIBLI,
-                ageRange = AgeRange.AGE_20_PLUS,
-                generationStatus = GenerationStatus.WAITING,
-                passUrl = "Aikon500",
-            )
+        private fun avatarSummaryProjection(): AvatarSummaryProjection =
+            object : AvatarSummaryProjection {
+                override val id: Long = 1L
+                override val nickname: String = "새아바타"
+                override val style: Style = Style.GHIBLI
+                override val gender: Gender = Gender.FEMALE
+                override val ageRange: AgeRange = AgeRange.AGE_20_PLUS
+                override val generationStatus: GenerationStatus = GenerationStatus.WAITING
+                override val imageUrl: String? = null
+                override val passUrl: String? = "Aikon500"
+                override val createdAt: Instant = Instant.now()
+            }
     }
 }