public async Task Send(UnicastTransportOperation operation, CancellationToken cancellationToken)
{
var dispatchDecision = await shouldSend(operation, cancellationToken).ConfigureAwait(false);
if (dispatchDecision == false)
{
return;
}
// The destination might be in a queue@destination format
var destination = operation.Destination;
var queue = QueueAddress.Parse(destination);
var connectionString = addressing.Map(queue);
var sendClient = createQueueClients.Create(connectionString);
var q = addressGenerator.GetQueueName(queue.QueueName);
var sendQueue = sendClient.GetQueueReference(q);
if (!await ExistsAsync(sendQueue).ConfigureAwait(false))
{
throw new QueueNotFoundException
{
Queue = queue.ToString()
};
}
var toBeReceived = operation.GetTimeToBeReceived();
var timeToBeReceived = toBeReceived.HasValue && toBeReceived.Value < TimeSpan.MaxValue ? toBeReceived : null;
if (timeToBeReceived != null && timeToBeReceived.Value == TimeSpan.Zero)
{
var messageType = operation.Message.Headers[Headers.EnclosedMessageTypes].Split(',').First();
logger.WarnFormat("TimeToBeReceived is set to zero for message of type '{0}'. Cannot send operation.", messageType);
return;
}
// user explicitly specified TimeToBeReceived that is not TimeSpan.MaxValue - fail
if (timeToBeReceived != null && timeToBeReceived.Value > CloudQueueMessageMaxTimeToLive && timeToBeReceived != TimeSpan.MaxValue)
{
var messageType = operation.Message.Headers[Headers.EnclosedMessageTypes].Split(',').First();
throw new InvalidOperationException($"TimeToBeReceived is set to more than 30 days for message type '{messageType}'.");
}
if (timeToBeReceived.HasValue)
{
var seconds = Convert.ToInt64(Math.Ceiling(timeToBeReceived.Value.TotalSeconds));
if (seconds <= 0)
{
throw new Exception($"Message cannot be sent with a provided delay of {timeToBeReceived.Value.TotalMilliseconds} ms.");
}
timeToBeReceived = TimeSpan.FromSeconds(seconds);
}
var wrapper = BuildMessageWrapper(operation, queue);
await Send(wrapper, sendQueue, timeToBeReceived ?? CloudQueueMessageMaxTimeToLive).ConfigureAwait(false);
}
Task SendMessage(UnicastTransportOperation transportOperation)
{
Logger.Debug("Send to " + transportOperation.Destination);
var toBeReceived = transportOperation.GetTimeToBeReceived();
var timeToBeReceived = toBeReceived.HasValue && toBeReceived.Value < TimeSpan.MaxValue
? toBeReceived
: null;
if (timeToBeReceived != null && timeToBeReceived.Value == TimeSpan.Zero)
{
var messageType = transportOperation.Message.Headers[Headers.EnclosedMessageTypes].Split(',').First();
Logger.WarnFormat("TimeToBeReceived is set to zero for message of type '{0}'. Cannot send operation.",
messageType);
return(Task.FromResult(0));
}
// TimeToBeReceived was not specified on message - go for maximum set by SDK
if (timeToBeReceived == TimeSpan.MaxValue)
{
timeToBeReceived = null;
}
var messageWrapper = BuildMessageWrapper(transportOperation, toBeReceived, transportOperation.Destination);
var topic = producerFactory.GetProducer().Topic(transportOperation.Destination);
var messageStream = new MemoryStream();
KafkaTransportInfrastructure.GetSerializer().Serialize(messageWrapper, messageStream);
return(topic.Produce(messageStream.ToArray()));
}
