/// <summary>
/// Process the next message for the subscription and return the subscription when successful.
/// </summary>
private async Task <Subscription> ProcessNextMessage(Subscription subscription, CancellationToken token)
{
bool processed = false;
while (!processed)
{
token.ThrowIfCancellationRequested();
// Get the message from the transport
byte[] msgBytes;
try
{
msgBytes = await _transport.ReceiveMessage(subscription.Id, token).ConfigureAwait(false);
}
catch (OperationCanceledException)
{
throw;
}
catch (Exception e)
{
Logger.Error(e, "Error while receiving from transport for subscription {subscription}", subscription.Id);
// Just start over with next message (TODO: Retry?)
continue;
}
// Dispatch to handlers
try
{
var dispatchTasks = subscription.Handlers.Select(h => h.Dispatch(_handlerFactory, msgBytes));
await Task.WhenAll(dispatchTasks).ConfigureAwait(false);
}
catch (Exception e)
{
Logger.Error(e, "Error while dispatching message to handlers for subscription {subscription}", subscription.Id);
// Just go to next message (TODO: Handler retries?)
continue;
}
processed = true;
}
return(subscription);
}
