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ServerCommon/Doc/Global/UserNicknameRegistryDoc.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+
+using Newtonsoft.Json;
+
+
+using ServerCore; using ServerBase;
+
+
+using ServerControlCenter;
+
+
+using SESSION_ID = System.Int32;
+using META_ID = System.UInt32;
+using ENTITY_GUID = System.String;
+using ACCOUNT_ID = System.String;
+using OWNER_GUID = System.String;
+using USER_GUID = System.String;
+using CHARACTER_GUID = System.String;
+using ITEM_GUID = System.String;
+
+
+namespace ServerCommon
+{
+    public class UserNicknameRegistryAttrib : AttribBase
+    {
+        [JsonProperty("nickname")]
+        public string Nickname { get; set; } = string.Empty;
+
+        [JsonProperty("user_guid")]
+        public USER_GUID UserGuid { get; set; } = string.Empty;
+
+        [JsonProperty("account_id")]
+        public ACCOUNT_ID AccountId { get; set; } = string.Empty;
+
+        public UserNicknameRegistryAttrib()
+            : base(typeof(UserNicknameRegistryAttrib).Name)
+        { }
+    }
+
+    //=============================================================================================
+    // PK(Partition Key)            : "user_nickname_registry#"
+    // SK(Sort Key)                 : "user_nickname"
+    // DocType                      : UserNicknameRegistryDoc
+    // UserNicknameRegistryAttrib   : {}
+    // ...
+    //=============================================================================================
+    public class UserNicknameRegistryDoc : DynamoDbDocBase
+    {
+        private static string getPrefixOfPK() { return "user_nickname_registry#"; }
+        private static string getPrefixOfSK() { return ""; }
+
+        public UserNicknameRegistryDoc()
+            : base(typeof(UserNicknameRegistryDoc).Name)
+        {
+            appendAttribWrapperAll();
+        }
+
+        public UserNicknameRegistryDoc(string userNickname)
+            : base(typeof(UserNicknameRegistryDoc).Name)
+        {
+            setCombinationKeyForPKSK(DynamoDbClient.PK_GLOBAL, userNickname.ToLower());
+
+            appendAttribWrapperAll();
+
+            fillUpPrimaryKey(onMakePK(), onMakeSK());
+
+            var user_nickname_registry_attrib = getAttrib<UserNicknameRegistryAttrib>();
+            NullReferenceCheckHelper.throwIfNull(user_nickname_registry_attrib, () => $"user_nickname_registry_attrib is null !!!");
+            user_nickname_registry_attrib.Nickname = userNickname;
+
+            setExceptionHandler(new DynamoDbQueryExceptionNotifier.ExceptionHandler(DynamoDbQueryExceptionNotifier.ConditionalCheckFailed, ServerErrorCode.UserNicknameDuplicated));
+        }
+
+        private void appendAttribWrapperAll()
+        {
+            appendAttribWrapper(new AttribWrapper<UserNicknameRegistryAttrib>());
+        }
+
+        protected override string onGetPrefixOfPK()
+        {
+            return getPrefixOfPK();
+        }
+
+        protected override ServerErrorCode onCheckAndSetSK(string sortKey)
+        {
+            getPrimaryKey().fillUpSK(sortKey);
+            setCombinationKeyForSK(sortKey);
+
+            return ServerErrorCode.Success;
+        }
+    }
+}