/// <summary>
/// TBD
/// </summary>
/// <param name="context">TBD</param>
/// <param name="task">TBD</param>
/// <returns>TBD</returns>
public override IPublisher <ByteString> Create(MaterializationContext context, out Task <IOResult> task)
{
var materializer = ActorMaterializerHelper.Downcast(context.Materializer);
var ioResultPromise = new TaskCompletionSource <IOResult>();
IPublisher <ByteString> pub;
try
{
// can throw, i.e. FileNotFound
var inputStream = _createInputStream();
var props = InputStreamPublisher
.Props(inputStream, ioResultPromise, _chunkSize)
.WithDispatcher(context
.EffectiveAttributes
.GetMandatoryAttribute <ActorAttributes.Dispatcher>()
.Name);
var actorRef = materializer.ActorOf(context, props);
pub = new ActorPublisherImpl <ByteString>(actorRef);
}
catch (Exception ex)
{
ioResultPromise.TrySetException(ex);
pub = new ErrorPublisher <ByteString>(ex, Attributes.GetNameOrDefault("inputStreamSource"));
}
task = ioResultPromise.Task;
return(pub);
}
public void ActorPublisher_should_handle_stash()
{
var probe = CreateTestProbe();
var actorRef = Sys.ActorOf(TestPublisherWithStash.Props(probe.Ref));
var p = new ActorPublisherImpl <string>(actorRef);
var s = this.CreateSubscriberProbe <string>();
p.Subscribe(s);
s.Request(2);
s.Request(3);
actorRef.Tell("unstash");
probe.ExpectMsg(new TotalDemand(5));
probe.ExpectMsg(new TotalDemand(5));
s.Request(4);
probe.ExpectMsg(new TotalDemand(9));
s.Cancel();
}
