public static async Task Unsubscribe <TItem>(this StreamRef <TItem> stream, ActorGrain actor)
{
Requires.NotNull(actor, nameof(actor));
var subscriptions = await stream.Subscriptions();
if (subscriptions.Count == 0)
{
return;
}
Debug.Assert(subscriptions.Count == 1,
"We should keep only one active subscription per-stream per-actor");
await subscriptions[0].Unsubscribe();
}
public static async Task Resume(this StreamRef stream, Actor actor)
{
Requires.NotNull(actor, nameof(actor));
var subscriptions = await stream.Subscriptions();
if (subscriptions.Count == 0)
{
return;
}
Debug.Assert(subscriptions.Count == 1,
"We should keep only one active subscription per-stream per-actor");
await subscriptions[0].Resume(x => actor.Host.Receive(x));
}
public static async Task Subscribe(this StreamRef stream, ActorGrain actor, StreamFilter filter = null)
{
Requires.NotNull(actor, nameof(actor));
var subscriptions = await stream.Subscriptions();
if (subscriptions.Count == 1)
{
return;
}
Debug.Assert(subscriptions.Count == 0,
"We should keep only one active subscription per-stream per-actor");
await stream.Subscribe(actor.ReceiveRequest, filter);
}
public static async Task Subscribe(this StreamRef stream, Actor actor, StreamFilter filter = null)
{
Requires.NotNull(actor, nameof(actor));
var subscriptions = await stream.Subscriptions();
if (subscriptions.Count == 1)
{
return;
}
Debug.Assert(subscriptions.Count == 0,
"We should keep only one active subscription per-stream per-actor");
await stream.Subscribe(x => actor.Host.Receive(x), filter ?? DeclaredHandlerOnlyFilter(actor));
}
public static async Task Resume <TItem, TOptions>(this StreamRef <TItem> stream, ActorGrain actor, TOptions options)
where TOptions : ResumeOptions
{
Requires.NotNull(actor, nameof(actor));
var subscriptions = await stream.Subscriptions();
if (subscriptions.Count == 0)
{
return;
}
Debug.Assert(subscriptions.Count == 1,
"We should keep only one active subscription per-stream per-actor");
await subscriptions[0].Resume(actor.ReceiveRequest, options);
}