public async ValueTask <MessageQueueMessage> DequeueAsync(MessageDequeueOptions options, CancellationToken cancellation = default)
{
if (options == null)
{
options = MessageDequeueOptions.Default;
}
var waitSeconds = (long)Math.Ceiling(options.Timeout.TotalSeconds);
var request = new HttpRequestMessage(HttpMethod.Get, this.GetRequestUrl("messages") + (options != null && options.Timeout >= TimeSpan.Zero ? "?waitseconds=" + waitSeconds.ToString() : string.Empty));
request.Headers.Add("x-mns-version", "2015-06-06");
var response = await _http.SendAsync(request, cancellation);
if (response.IsSuccessStatusCode)
{
return(MessageUtility.ResolveMessage(this, await response.Content.ReadAsStreamAsync(cancellation)));
}
var exception = AliyunException.Parse(await response.Content.ReadAsStringAsync(cancellation));
if (exception != null)
{
switch (exception.Code)
{
case MessageUtility.MessageNotExist:
return(MessageQueueMessage.Empty);
case MessageUtility.QueueNotExist:
throw exception;
default:
throw exception;
}
}
return(MessageQueueMessage.Empty);
}
public PollArgument(MessageDequeueOptions options, int interval = 1000)
{
this.Options = options ?? MessageDequeueOptions.Default;
this.Interval = Math.Max(interval, 100);
}
