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/*
* @Author: Jerry.Yang
* @Date: 2024-11-19 11:16:43
* @LastEditors: Jerry.Yang
* @LastEditTime: 2025-02-19 14:29:11
* @Description: API for modifying the specifications of a database instance.
*/
use crate::service::rds;
use crate::volcengine::error::error;
use crate::volcengine::request::operation;
use crate::volcengine::request::operation_config;
use crate::volcengine::request::request;
use crate::volcengine::request::request::RequestVolcengine;
use crate::volcengine::request::response::ApiResponse;
use volcengine_sdk_protobuf::protobuf::rds_instance;
/// A struct representing the API for modifying the specifications of a database instance.
/// This struct encapsulates the functionality required to send a request to the Volcengine RDS service
/// to modify the specifications (e.g., CPU, memory, storage) of a specific database instance.
pub struct ApiModifyDBInstanceSpecRds;
/// Implementation of methods for the `ApiModifyDBInstanceSpecRds` struct.
/// This implementation provides the necessary logic to construct and send a request to the Volcengine RDS service
/// to modify the specifications of a database instance, as well as handle the response.
impl ApiModifyDBInstanceSpecRds {
/// Public method to modify the specifications of a database instance.
///
/// # Arguments
/// - `&self`: Reference to the current instance of `ApiModifyDBInstanceSpecRds`.
/// - `rds`: Reference to an `Rds` instance, which contains client information, configuration, and handles.
/// - `request`: A `ModifyDbInstanceSpecReq` structure containing the request parameters.
///
/// # Returns
/// - `Result<rds_instance::ModifyDbInstanceSpecResp, error::Error>`: On success, returns a `ModifyDbInstanceSpecResp` structure containing the response from the RDS service.
/// On failure, returns an `error::Error` indicating the cause of the failure.
pub async fn new_modify_db_instance_spec(
&self,
rds: &rds::Rds,
request: rds_instance::ModifyDbInstanceSpecReq,
) -> Result<rds_instance::ModifyDbInstanceSpecResp, error::Error> {
// Delegate the request handling to the private method `new_modify_db_instance_spec_request`.
self.new_modify_db_instance_spec_request(rds, request).await
}
/// Private method to handle the request to modify the specifications of a database instance.
///
/// This method constructs the request operation, builds the request, sends it to the Volcengine RDS service,
/// and parses the response.
///
/// # Arguments
/// - `&self`: Reference to the current instance of `ApiModifyDBInstanceSpecRds`.
/// - `rds`: Reference to an `Rds` instance, which contains client information, configuration, and handles.
/// - `request`: A `ModifyDbInstanceSpecReq` structure containing the request parameters.
///
/// # Returns
/// - `Result<rds_instance::ModifyDbInstanceSpecResp, error::Error>`: On success, returns a `ModifyDbInstanceSpecResp` structure containing the response from the RDS service.
/// On failure, returns an `error::Error` indicating the cause of the failure.
async fn new_modify_db_instance_spec_request(
&self,
rds: &rds::Rds,
request: rds_instance::ModifyDbInstanceSpecReq,
) -> Result<rds_instance::ModifyDbInstanceSpecResp, error::Error> {
// Define the request operation with the specific operation name, HTTP method, and path.
// The operation name corresponds to the "ModifyDBInstanceSpec" action in the Volcengine RDS service.
let request_operation = operation::Operation::builder()
.with_operation_name(
operation_config::operation_name::OperationName::RdsOperation(
operation_config::operation_name_rds::OperationNameRds::ModifyDBInstanceSpec,
),
)
.with_operation_http_method(
operation_config::operation_http_method::OperationHttpMethod::POST,
)
.with_operation_http_path(
operation_config::operation_http_path::OperationHttpPath::Default,
)
.build()?;
// Build the Volcengine request using the client information, configuration, handles, and the defined operation.
// The request is then sent to the RDS service, and the response is awaited.
let response = request::Request::builder()
.with_client_info(&rds.client.client_info)
.with_config(&rds.client.config)
.with_handles(&rds.client.handles)
.with_operation(&request_operation)
.build()?
.send(request)
.await?;
// Convert the response into a structured format defined by the SDK's protobuf definitions.
// Initialize a default response structure for load balancer descriptions.
let mut resp =
volcengine_sdk_protobuf::protobuf::rds_instance::ModifyDbInstanceSpecResp::default();
// Populate the response structure with data from the actual response.
resp.to_struct(response).await?;
// Return the structured response successfully.
return Ok(resp);
}
}