/// <summary>
/// Cancels a query that has been issued. Cancellation is guaranteed only if the query
/// has not completed execution before the cancellation request was issued. Because cancellation
/// is an idempotent operation, subsequent cancellation requests will return a <code>CancellationMessage</code>,
/// indicating that the query has already been canceled.
/// </summary>
/// <param name="request">Container for the necessary parameters to execute the CancelQuery service method.</param>
/// <param name="cancellationToken">
/// A cancellation token that can be used by other objects or threads to receive notice of cancellation.
/// </param>
///
/// <returns>The response from the CancelQuery service method, as returned by TimestreamQuery.</returns>
/// <exception cref="Amazon.TimestreamQuery.Model.AccessDeniedException">
/// You are not authorized to perform this action.
/// </exception>
/// <exception cref="Amazon.TimestreamQuery.Model.InternalServerException">
/// Timestream was unable to fully process this request because of an internal server
/// error.
/// </exception>
/// <exception cref="Amazon.TimestreamQuery.Model.InvalidEndpointException">
/// The requested endpoint was invalid.
/// </exception>
/// <exception cref="Amazon.TimestreamQuery.Model.ThrottlingException">
/// The request was denied due to request throttling.
/// </exception>
/// <exception cref="Amazon.TimestreamQuery.Model.ValidationException">
/// Invalid or malformed request.
/// </exception>
/// <seealso href="http://docs.aws.amazon.com/goto/WebAPI/timestream-query-2018-11-01/CancelQuery">REST API Reference for CancelQuery Operation</seealso>
public virtual Task <CancelQueryResponse> CancelQueryAsync(CancelQueryRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
{
var options = new InvokeOptions();
options.RequestMarshaller = CancelQueryRequestMarshaller.Instance;
options.ResponseUnmarshaller = CancelQueryResponseUnmarshaller.Instance;
options.EndpointDiscoveryMarshaller = CancelQueryEndpointDiscoveryMarshaller.Instance;
options.EndpointOperation = EndpointOperation;
return(InvokeAsync <CancelQueryResponse>(request, options, cancellationToken));
}
internal virtual CancelQueryResponse CancelQuery(CancelQueryRequest request)
{
var options = new InvokeOptions();
options.RequestMarshaller = CancelQueryRequestMarshaller.Instance;
options.ResponseUnmarshaller = CancelQueryResponseUnmarshaller.Instance;
options.EndpointDiscoveryMarshaller = CancelQueryEndpointDiscoveryMarshaller.Instance;
options.EndpointOperation = EndpointOperation;
return(Invoke <CancelQueryResponse>(request, options));
}
/// <summary>
/// Initiates the asynchronous execution of the CancelQuery operation.
/// </summary>
///
/// <param name="request">Container for the necessary parameters to execute the CancelQuery operation on AmazonTimestreamQueryClient.</param>
/// <param name="callback">An AsyncCallback delegate that is invoked when the operation completes.</param>
/// <param name="state">A user-defined state object that is passed to the callback procedure. Retrieve this object from within the callback
/// procedure using the AsyncState property.</param>
///
/// <returns>An IAsyncResult that can be used to poll or wait for results, or both; this value is also needed when invoking EndCancelQuery
/// operation.</returns>
/// <seealso href="http://docs.aws.amazon.com/goto/WebAPI/timestream-query-2018-11-01/CancelQuery">REST API Reference for CancelQuery Operation</seealso>
public virtual IAsyncResult BeginCancelQuery(CancelQueryRequest request, AsyncCallback callback, object state)
{
var options = new InvokeOptions();
options.RequestMarshaller = CancelQueryRequestMarshaller.Instance;
options.ResponseUnmarshaller = CancelQueryResponseUnmarshaller.Instance;
options.EndpointDiscoveryMarshaller = CancelQueryEndpointDiscoveryMarshaller.Instance;
options.EndpointOperation = EndpointOperation;
return(BeginInvoke(request, options, callback, state));
}
public HttpRequestMessage BuildCancelQueryRequest(string requestId)
{
var requestUri = BuildCancelQueryUrl();
var requestBody = new CancelQueryRequest()
{
RequestId = requestId
};
var jsonBody = JsonSerializer.Serialize(requestBody, _jsonSerializerOptions);
var request = BuildJsonRequestMessage(requestUri, HttpMethod.Post, jsonBody);
return(request);
}
public async Task CancelQuery()
{
Console.WriteLine("Starting query: " + SELECT_ALL_QUERY);
QueryRequest queryRequest = new QueryRequest();
queryRequest.QueryString = SELECT_ALL_QUERY;
QueryResponse queryResponse = await queryClient.QueryAsync(queryRequest);
Console.WriteLine("Cancelling query: " + SELECT_ALL_QUERY);
CancelQueryRequest cancelQueryRequest = new CancelQueryRequest();
cancelQueryRequest.QueryId = queryResponse.QueryId;
try
{
await queryClient.CancelQueryAsync(cancelQueryRequest);
Console.WriteLine("Query has been successfully cancelled.");
} catch (Exception e)
{
Console.WriteLine("Could not cancel the query: " + SELECT_ALL_QUERY + " = " + e);
}
}
