async Task OnMessage(string[] parts)
{
string id = parts[1];
Type type = Type.GetType(parts[2]);
var message = JsonConvert.DeserializeObject(parts[3], type) as IPubSubMessage;
message.RemoteConnectionId = this.Id;
try
{
await _hub.Publish(message);
await SendOkResponse(id);
}
catch (Exception ex)
{
_logger.Debug(ex);
await SendErrorResponse(id, ex);
}
}
internal async Task Put(IReadOnlyCollection <Subscriber> subscribers, IPubSubMessage message)
{
bool hasAtLeastOneSubscriber = false;
List <Exception> exceptions = null;
// deliver to local subscribers
foreach (var item in subscribers)
{
try
{
if (item.Subscription.ShouldDeliver(message))
{
hasAtLeastOneSubscriber = true;
await item.Subscription.Deliver(message);
}
}
catch (Exception ex)
{
if (exceptions == null)
{
exceptions = new List <Exception>();
}
exceptions.Add(ex);
}
}
// deliver to remote subscribers
bool remoteDeliver = false;
try
{
if (await _onRemoteDeliver(message))
{
remoteDeliver = hasAtLeastOneSubscriber = true;
}
}
catch (Exception ex)
{
if (exceptions == null)
{
exceptions = new List <Exception>();
}
exceptions.Add(ex);
}
//WriteDebugLine($"Published <<<{message.GetType().Name}>>> Subs: {subscribers.Count}, Remote: {remoteDeliver}, Ex: {exceptions?.Count ?? 0}");
if (exceptions != null)
{
throw new AggregateException(exceptions).Fix();
}
if (message.DeliverAtLeastOnce && !hasAtLeastOneSubscriber)
{
if (message.WaitForSubscriberTimeout > 0)
{
_logger.Debug($"Delayed <<<{message.GetType().Name}>>> for {message.WaitForSubscriberTimeout} ms");
await _onDelayedMessage(message);
}
else
{
throw new NoSubscribersException("Failed to deliver the message - no one is listening");
}
}
}