/// <summary>
/// <para> Task runners call this action to receive a task to perform from AWS Data Pipeline. The task runner specifies which tasks it can
/// perform by setting a value for the workerGroup parameter of the PollForTask call. The task returned by PollForTask may come from any of the
/// pipelines that match the workerGroup value passed in by the task runner and that was launched using the IAM user credentials specified by
/// the task runner. </para> <para> If tasks are ready in the work queue, PollForTask returns a response immediately. If no tasks are available
/// in the queue, PollForTask uses long-polling and holds on to a poll connection for up to a 90 seconds during which time the first newly
/// scheduled task is handed to the task runner. To accomodate this, set the socket timeout in your task runner to 90 seconds. The task runner
/// should not call PollForTask again on the same <c>workerGroup</c> until it receives a response, and this may take up to 90 seconds. </para>
/// </summary>
///
/// <param name="pollForTaskRequest">Container for the necessary parameters to execute the PollForTask service method on
/// AmazonDataPipeline.</param>
///
/// <returns>The response from the PollForTask service method, as returned by AmazonDataPipeline.</returns>
///
/// <exception cref="T:Amazon.DataPipeline.Model.InternalServiceErrorException" />
/// <exception cref="T:Amazon.DataPipeline.Model.InvalidRequestException" />
/// <exception cref="T:Amazon.DataPipeline.Model.TaskNotFoundException" />
/// <param name="cancellationToken">
/// A cancellation token that can be used by other objects or threads to receive notice of cancellation.
/// </param>
public Task <PollForTaskResponse> PollForTaskAsync(PollForTaskRequest pollForTaskRequest, CancellationToken cancellationToken = default(CancellationToken))
{
var marshaller = new PollForTaskRequestMarshaller();
var unmarshaller = PollForTaskResponseUnmarshaller.GetInstance();
return(Invoke <IRequest, PollForTaskRequest, PollForTaskResponse>(pollForTaskRequest, marshaller, unmarshaller, signer, cancellationToken));
}
internal PollForTaskResponse PollForTask(PollForTaskRequest request)
{
var marshaller = new PollForTaskRequestMarshaller();
var unmarshaller = PollForTaskResponseUnmarshaller.Instance;
return(Invoke <PollForTaskRequest, PollForTaskResponse>(request, marshaller, unmarshaller));
}
/// <summary>
/// Initiates the asynchronous execution of the PollForTask operation.
/// </summary>
///
/// <param name="request">Container for the necessary parameters to execute the PollForTask operation.</param>
/// <param name="cancellationToken">
/// A cancellation token that can be used by other objects or threads to receive notice of cancellation.
/// </param>
/// <returns>The task object representing the asynchronous operation.</returns>
public Task <PollForTaskResponse> PollForTaskAsync(PollForTaskRequest request, System.Threading.CancellationToken cancellationToken = default(CancellationToken))
{
var marshaller = new PollForTaskRequestMarshaller();
var unmarshaller = PollForTaskResponseUnmarshaller.Instance;
return(InvokeAsync <PollForTaskRequest, PollForTaskResponse>(request, marshaller,
unmarshaller, cancellationToken));
}
internal PollForTaskResponse PollForTask(PollForTaskRequest request)
{
var task = PollForTaskAsync(request);
try
{
return(task.Result);
}
catch (AggregateException e)
{
ExceptionDispatchInfo.Capture(e.InnerException).Throw();
return(null);
}
}