refactor : Nickname 입력 유효성 검사 ChangeNicknameRequest 에서 수행하도록 변경

놀이터(예제 코드 작성)/learn-with-making-clean-architecture/src/main/kotlin/com/banjjoknim/cleanarchitecture/user/adapter/in/web/ChangeNicknameRequest.kt

@@ -1,12 +1,20 @@
 package com.banjjoknim.cleanarchitecture.user.adapter.`in`.web
 
 import com.banjjoknim.cleanarchitecture.user.application.port.`in`.ChangeNicknameRequestData
+import javax.validation.constraints.NotBlank
+import javax.validation.constraints.Size
 
 data class ChangeNicknameRequest(
     val userId: Long,
+    @field:NotBlank
+    @field:Size(max = NICKNAME_LENGTH_LIMIT)
     val newNickname: String
 ) {
     fun toData(): ChangeNicknameRequestData {
         return ChangeNicknameRequestData(userId, newNickname)
     }
+
+    companion object {
+        private const val NICKNAME_LENGTH_LIMIT = 10
+    }
 }

놀이터(예제 코드 작성)/learn-with-making-clean-architecture/src/main/kotlin/com/banjjoknim/cleanarchitecture/user/adapter/in/web/ChangeNicknameWebAdapter.kt

@@ -5,6 +5,7 @@ import org.springframework.web.bind.annotation.PostMapping
 import org.springframework.web.bind.annotation.RequestBody
 import org.springframework.web.bind.annotation.RequestMapping
 import org.springframework.web.bind.annotation.RestController
+import javax.validation.Valid
 
 @RequestMapping("/users")
 @RestController
@@ -12,7 +13,7 @@ class ChangeNicknameWebAdapter(
     private val changeNicknameWebPort: ChangeNicknameUseCase
 ) {
     @PostMapping("")
-    fun changeNickname(@RequestBody changeNicknameRequest: ChangeNicknameRequest): ChangeNicknameResponse {
+    fun changeNickname(@RequestBody @Valid changeNicknameRequest: ChangeNicknameRequest): ChangeNicknameResponse {
         val requestData = changeNicknameRequest.toData()
         val responseData = changeNicknameWebPort.changeNickname(requestData)
         return ChangeNicknameResponse(responseData.userId)

놀이터(예제 코드 작성)/learn-with-making-clean-architecture/src/main/kotlin/com/banjjoknim/cleanarchitecture/user/pojo/Nickname.kt

@@ -1,13 +1,3 @@
 package com.banjjoknim.cleanarchitecture.user.pojo
 
-data class Nickname(val value: String) {
-    init {
-        if (value.length > NICKNAME_LENGTH_LIMIT) {
-            throw IllegalArgumentException("회원의 닉네임의 길이는 $NICKNAME_LENGTH_LIMIT 를 초과할 수 없습니다.")
-        }
-    }
-
-    companion object {
-        private const val NICKNAME_LENGTH_LIMIT = 10
-    }
-}
+data class Nickname(val value: String)