public Task Dispatch(TransportOperations outgoingMessages, TransportTransaction transaction, ContextBag context)
{
var channel = channelProvider.GetPublishChannel();
try
{
var unicastTransportOperations = outgoingMessages.UnicastTransportOperations;
var multicastTransportOperations = outgoingMessages.MulticastTransportOperations;
var tasks = new List <Task>(unicastTransportOperations.Count + multicastTransportOperations.Count);
foreach (var operation in unicastTransportOperations)
{
context.TryGet(out RabbitMQMessagePriority priority);
tasks.Add(SendMessage(operation, channel, priority));
}
foreach (var operation in multicastTransportOperations)
{
context.TryGet(out RabbitMQMessagePriority priority);
tasks.Add(PublishMessage(operation, channel, priority));
}
channelProvider.ReturnPublishChannel(channel);
return(tasks.Count == 1 ? tasks[0] : Task.WhenAll(tasks));
}
catch
{
channel.Dispose();
throw;
}
}
async Task MovePoisonMessage(BasicDeliverEventArgs message, string queue, CancellationToken messageProcessingCancellationToken)
{
try
{
var channel = channelProvider.GetPublishChannel();
try
{
await channel.RawSendInCaseOfFailure(queue, message.Body, message.BasicProperties, messageProcessingCancellationToken).ConfigureAwait(false);
}
finally
{
channelProvider.ReturnPublishChannel(channel);
}
}
catch (Exception ex) when(!ex.IsCausedBy(messageProcessingCancellationToken))
{
Logger.Error($"Failed to move poison message to queue '{queue}'. Returning message to original queue...", ex);
consumer.Model.BasicRejectAndRequeueIfOpen(message.DeliveryTag);
return;
}
try
{
consumer.Model.BasicAckSingle(message.DeliveryTag);
}
catch (AlreadyClosedException ex)
{
Logger.Warn($"Failed to acknowledge poison message because the channel was closed. The message was sent to queue '{queue}' but also returned to the original queue.", ex);
}
}
public Task Dispatch(TransportOperations outgoingMessages, TransportTransaction transaction, CancellationToken cancellationToken = default)
{
var channel = channelProvider.GetPublishChannel();
try
{
var unicastTransportOperations = outgoingMessages.UnicastTransportOperations;
var multicastTransportOperations = outgoingMessages.MulticastTransportOperations;
var tasks = new List <Task>(unicastTransportOperations.Count + multicastTransportOperations.Count);
foreach (var operation in unicastTransportOperations)
{
tasks.Add(SendMessage(operation, channel, cancellationToken));
}
foreach (var operation in multicastTransportOperations)
{
tasks.Add(PublishMessage(operation, channel, cancellationToken));
}
channelProvider.ReturnPublishChannel(channel);
return(tasks.Count == 1 ? tasks[0] : Task.WhenAll(tasks));
}
#pragma warning disable PS0019 // When catching System.Exception, cancellation needs to be properly accounted for - justification:
// the same action is appropriate when an operation was canceled
catch
#pragma warning restore PS0019 // When catching System.Exception, cancellation needs to be properly accounted for
{
channel.Dispose();
throw;
}
}