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245
ServerCommon/Helper/CurrencyControlHelper.cs
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245
ServerCommon/Helper/CurrencyControlHelper.cs
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using Amazon.DynamoDBv2;
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using Amazon.DynamoDBv2.DocumentModel;
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using Amazon.DynamoDBv2.Model;
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using Amazon.S3.Model;
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using ServerCore;
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using ServerBase;
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using DYNAMO_DB_TABLE_NAME = System.String;
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using DYNAMO_DB_TABLE_FULL_NAME = System.String;
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using USER_GUID = System.String;
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namespace ServerCommon;
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public static class CurrencyControlHelper
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{
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private static DynamoDbClient? m_db_connector = null;
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//=============================================================================================
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// 단위당 금전량을 quantity 만큼 계산하여 Round 보정후 반환 한다.
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//=============================================================================================
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public static double calculateRoundedMoneyByCurrency(this double reqUnitMoney, CurrencyType currencyType, int quantity = 1)
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{
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var result = new Result();
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if (ServerCore.TypeHelper.NumericSignType.Positive == ServerCore.TypeHelper.checkNumericSignType<double>(reqUnitMoney))
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{
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reqUnitMoney *= -1;
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}
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var req_money = reqUnitMoney * quantity;
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return roundMoneyByCurrencyType(currencyType, req_money);
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}
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//=============================================================================================
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// 금전량을 보정 한다.
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//=============================================================================================
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public static double roundMoneyByCurrencyType(CurrencyType currencyType, double delta)
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{
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// CurrencyType.Calium 이 아닌 모든 재화는 소숫점을 올림 처리 한다 !!!
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if (currencyType != CurrencyType.Calium)
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{
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delta = MathHelper.roundUpOrDown(delta);
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}
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return delta;
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}
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//=============================================================================================
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// delta 만큼 금전을 쓴다.
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//=============================================================================================
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public static async Task<(Result, double)> spendMoneyByUserGuid( USER_GUID userGuid, CurrencyType currencyType, double delta )
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{
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var result = new Result();
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if (ServerCore.TypeHelper.NumericSignType.Positive == ServerCore.TypeHelper.checkNumericSignType<double>(delta))
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{
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delta *= -1;
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}
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return await changeMoneyByUserGuid(userGuid, currencyType, delta);
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}
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//=============================================================================================
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// delta 만큼 금전을 얻는다.
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//=============================================================================================
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public static async Task<(Result, double)> earnMoneyByUserGuid(USER_GUID userGuid, CurrencyType currencyType, double delta)
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{
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var result = new Result();
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if (ServerCore.TypeHelper.NumericSignType.Negative == ServerCore.TypeHelper.checkNumericSignType<double>(delta))
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{
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delta *= -1;
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}
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if (0 < delta)
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{
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return await changeMoneyByUserGuid(userGuid, currencyType, delta);
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}
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return (result, 0);
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}
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public static async Task<(Result, double)> getMoneyByUserGuid(USER_GUID userGuid, CurrencyType type)
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{
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var result = new Result();
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string err_msg;
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var error_code = hasDbConnector();
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if (error_code.isFail())
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{
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err_msg = $"Not available DynamoDB connector !!! : userGuid:{userGuid}";
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result.setFail(error_code, err_msg);
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return (result, 0);
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}
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var db_connector = getDbConnector();
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(result, var found_money_doc) = await findMoneyDocByUserGuid(db_connector, userGuid);
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if (null == found_money_doc)
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{
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err_msg = $"Not found MoneyDoc !!! : userGuid:{userGuid}";
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result.setFail(ServerErrorCode.MoneyDocIsNull, err_msg);
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return (result, 0);
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}
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var attrib = found_money_doc.getAttrib<MoneyAttrib>();
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NullReferenceCheckHelper.throwIfNull(attrib, () => $"attrib is null !!!");
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return (result, attrib.getCurrencyFromType(type));
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}
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public static async Task<(Result, double)> changeMoneyByUserGuid(USER_GUID userGuid, CurrencyType type, double delta)
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{
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var result = new Result();
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var err_msg = string.Empty;
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var error_code = hasDbConnector();
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if (error_code.isFail())
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{
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err_msg = $"Not available DynamoDB connector !!! : userGuid:{userGuid}";
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result.setFail(error_code, err_msg);
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return (result, 0);
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}
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var db_connector = getDbConnector();
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var table = db_connector.getTableByDoc<MoneyDoc>();
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(result, var make_primary_key) = await DynamoDBDocBaseHelper.makePrimaryKey<MoneyDoc>(userGuid);
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if (result.isFail())
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{
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return (result, 0);
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}
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NullReferenceCheckHelper.throwIfNull(make_primary_key, () => $"make_primary_key is null !!! - userGuid:{userGuid}");
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(result, var request) = makeUpdateItemRequest( table.TableName
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, make_primary_key.toKeyWithAttributeValue(), MoneyAttribExtensions.getKeyNameFromType(type)
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, delta);
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if (result.isFail() || request == null) return (result, 0);
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(result, var changed_money_doc) = await db_connector.simpleQueryDocTypesWithUpdateItemRequest<MoneyDoc>(request);
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if (result.isFail() || changed_money_doc == null) return (result, 0);
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var money_attrib = changed_money_doc.getAttrib<MoneyAttrib>();
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NullReferenceCheckHelper.throwIfNull(money_attrib, () => $"money_attrib is null !!! - userGuid:{userGuid}");
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return (result, money_attrib.getCurrencyFromType(type));
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}
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public static async Task<(Result, MoneyDoc?)> findMoneyDocByUserGuid(DynamoDbClient dynamoDbClient, USER_GUID userGuid)
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{
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var result = new Result();
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var money_doc = new MoneyDoc();
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money_doc.setCombinationKeyForPK(userGuid);
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money_doc.onApplyPKSK();
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var query_config = dynamoDbClient.makeQueryConfigForReadByPKOnly(money_doc.getPK());
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return await dynamoDbClient.simpleQueryDocTypeWithQueryOperationConfig<MoneyDoc>(query_config);
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}
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private static (Result, UpdateItemRequest?) makeUpdateItemRequest( DYNAMO_DB_TABLE_FULL_NAME tableFullName
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, Dictionary<string, AttributeValue> attributeValueWithPrimaryKey
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, string targetAttribName
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, double deltaCount )
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{
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var result = new Result();
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var err_msg = string.Empty;
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var error_code = hasDbConnector();
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if (error_code.isFail())
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{
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err_msg = $"Not available DynamoDb connector !!!";
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result.setFail(error_code, err_msg);
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return (result, null);
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}
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var query_builder = new DynamoDbItemRequestHelper.UpdateItemRequestBuilder(tableFullName);
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query_builder.withKeys(attributeValueWithPrimaryKey);
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var target_doc = new MoneyDoc();
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var attrib_path_json_string = target_doc.toJsonStringOfAttribs();
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var target_key = JsonHelper.getJsonPropertyName<MoneyAttrib>(targetAttribName);
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(var is_success, var attribute_expression) = DynamoDbClientHelper.toAttributeExpressionFromJson(attrib_path_json_string, target_key);
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if (false == is_success)
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{
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err_msg = $"Failed to DynamoDbClientHelper.toAttributeExpressionFromJson() !!! : attribPath:{attrib_path_json_string}, targetKey:{target_key}";
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result.setFail(ServerErrorCode.AttribPathMakeFailed, err_msg);
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Log.getLogger().error(result.toBasicString());
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return (result, null);
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}
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query_builder.withExpressionAttributeNames(DynamoDbClientHelper.toExpressionAttributeNamesFromJson(attrib_path_json_string, target_key));
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var update_expression = (deltaCount >= 0)
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? $"SET {attribute_expression} = if_not_exists({attribute_expression}, :start) + :changeValue"
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: $"SET {attribute_expression} = if_not_exists({attribute_expression}, :start) - :changeValue";
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query_builder.withUpdateExpression(update_expression);
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var expression_attribute_values = new Dictionary<string, AttributeValue>
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{
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{ ":changeValue", new AttributeValue { N = Math.Abs(deltaCount).ToString() } },
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{ ":start", new AttributeValue { N = "0" } }
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};
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query_builder.withExpressionAttributeValues(expression_attribute_values);
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query_builder.withReturnValues(ReturnValue.ALL_NEW);
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return query_builder.build();
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}
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private static ServerErrorCode hasDbConnector()
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{
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if(null == m_db_connector)
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{
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return ServerErrorCode.DynamoDbConnectorIsNull;
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}
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return ServerErrorCode.Success;
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}
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public static DynamoDbClient getDbConnector()
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{
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NullReferenceCheckHelper.throwIfNull(m_db_connector, () => $"m_db_connector is null !!!");
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return m_db_connector;
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}
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//=============================================================================================
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// CurrencyControlHelper <= DynamoDbClient 설정
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//=============================================================================================
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public static Result setDbConnector(DynamoDbClient dbConnector)
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{
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var result = new Result();
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m_db_connector = dbConnector;
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return result;
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}
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}
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