public async Task Send(UnicastTransportOperation operation, CancellationToken cancellationToken = default)
{
if (logger.IsDebugEnabled)
{
logger.DebugFormat("Sending message (ID: '{0}') to {1}", operation.Message.MessageId, operation.Destination);
}
if (NativeDelayDeliveryPersistence.IsDelayedMessage(operation, out var dueDate))
{
await nativeDelayDeliveryPersistence.ScheduleAt(operation, dueDate, cancellationToken).ConfigureAwait(false);
return;
}
// The destination might be in a queue@destination format
var destination = operation.Destination;
var messageIntent = operation.GetMessageIntent();
var queueAddress = QueueAddress.Parse(destination, messageIntent == MessageIntentEnum.Reply);
var queueServiceClient = addressing.Map(queueAddress, messageIntent);
var queueName = addressGenerator.GetQueueName(queueAddress.QueueName);
var sendQueue = queueServiceClient.GetQueueClient(queueName);
if (!await ExistsAsync(sendQueue, cancellationToken).ConfigureAwait(false))
{
throw new QueueNotFoundException(queueAddress.ToString(), $"Destination queue '{queueAddress}' does not exist. This queue may have to be created manually.", null);
}
var toBeReceived = operation.Properties.DiscardIfNotReceivedBefore;
var timeToBeReceived = toBeReceived != null && toBeReceived.MaxTime < TimeSpan.MaxValue ? toBeReceived.MaxTime : (TimeSpan?)null;
if (timeToBeReceived.HasValue)
{
if (timeToBeReceived.Value == TimeSpan.Zero)
{
var messageType = operation.Message.Headers[Headers.EnclosedMessageTypes].Split(',').First();
logger.WarnFormat("TimeToBeReceived is set to zero for message of type '{0}'. Cannot send operation.", messageType);
return;
}
// user explicitly specified TimeToBeReceived that is not TimeSpan.MaxValue - fail
if (timeToBeReceived.Value > CloudQueueMessageMaxTimeToLive && timeToBeReceived.Value != TimeSpan.MaxValue)
{
var messageType = operation.Message.Headers[Headers.EnclosedMessageTypes].Split(',').First();
throw new InvalidOperationException($"TimeToBeReceived is set to more than 30 days for message type '{messageType}'.");
}
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, queueAddress);
await Send(wrapper, sendQueue, timeToBeReceived ?? CloudQueueMessageMaxTimeToLive, cancellationToken).ConfigureAwait(false);
}
public Dispatcher(QueueAddressGenerator addressGenerator, AzureStorageAddressingSettings addressing, MessageWrapperSerializer serializer, NativeDelayDeliveryPersistence nativeDelayDeliveryPersistence, ISubscriptionStore subscriptionStore)
{
this.subscriptionStore = subscriptionStore;
this.addressGenerator = addressGenerator;
this.addressing = addressing;
this.serializer = serializer;
this.nativeDelayDeliveryPersistence = nativeDelayDeliveryPersistence;
}
