Exemplo n.º 1
0
        Task Init(CancellationToken cancellation)
        {
            StreamPubSubWrapper.Hook(services, providers, stream =>
                                     StreamSubscriptionSpecification
                                     .Match(system, stream.Id, subscriptions.Find(stream.Provider))
                                     .Select(x => new StreamPubSubMatch(x.Receive))
                                     .ToArray());

            return(Task.CompletedTask);
        }
        public IAsyncStream <T> GetStream <T>(Guid unused, string id)
        {
            var stream = provider.GetStream <T>(unused, id);

            return((IAsyncStream <T>)streams.GetValue(stream, _ =>
            {
                var recipients = StreamSubscriptionSpecification.Match(system, id, specifications);

                Func <T, Task> fan = item => Task.CompletedTask;
                Func <IEnumerable <T>, Task> batchFan = batch => Task.CompletedTask;

                if (recipients.Length > 0)
                {
                    fan = item => Task.WhenAll(recipients.Select(x => x.Receive(item)));
                    batchFan = batch => Task.WhenAll(recipients.Select(x => x.Receive(batch)));
                }

                return new StreamVentilator <T>(stream, fan, batchFan);
            }));
        }