/// <summary>
/// Ensures, that all stashed messages inside <paramref name="actor"/> stash have been unstashed.
/// </summary>
public override void BeforeIncarnated(ActorBase actor, IActorContext context)
{
var actorStash = actor as IActorStash;
if (actorStash != null)
{
actorStash.Stash.UnstashAll();
}
}
/// <summary>
/// Creates a new stash for specified <paramref name="actor"/> if it has not been initialized already.
/// </summary>
public override void AfterIncarnated(ActorBase actor, IActorContext context)
{
var stashed = actor as IActorStash;
if (stashed != null && stashed.Stash == null)
{
stashed.Stash = context.CreateStash(actor.GetType());
}
}
public FailingChildInnerActor(ActorBase fail)
: base(fail)
{
Fail = new InnerActor();
}
public FailingInnerActor(ActorBase fail)
{
Fail = fail;
}
protected void UnwatchWatchedActors(ActorBase actor)
{
if (!_watchedBy.Any()) return;
MaintainAddressTerminatedSubscription(() =>
{
try
{
foreach ( // ➡➡➡ NEVER SEND THE SAME SYSTEM MESSAGE OBJECT TO TWO ACTORS
var watchee in _watching.OfType<InternalActorRef>())
watchee.Tell(new Unwatch(watchee, Self));
}
finally
{
_watching = new HashSet<ActorRef>();
_terminatedQueue = new HashSet<ActorRef>();
}
});
}
protected void SetActorFields(ActorBase actor)
{
if (actor != null)
{
actor.Unclear();
}
}
protected void ClearActor(ActorBase actor)
{
if (actor != null)
{
var disposable = actor as IDisposable;
if (disposable != null)
{
try
{
disposable.Dispose();
}
catch (Exception e)
{
if (_systemImpl.Log != null)
{
_systemImpl.Log.Error(e, "An error occurred while disposing {0} actor. Reason: {1}",
actor.GetType(), e.Message);
}
}
}
actor.Clear(_systemImpl.DeadLetters);
}
_actorHasBeenCleared = true;
CurrentMessage = null;
//TODO: semantics here? should all "_state" be cleared? or just behavior?
_state = _state.ClearBehaviorStack();
}
public void Release(ActorBase actor)
{
actor = null;
}
private void FinishRecreate(Exception cause, ActorBase failedActor)
{
// need to keep a snapshot of the surviving children before the new actor instance creates new ones
var survivors = ChildrenContainer.Children;
try
{
try { ResumeNonRecursive(); }
finally { ClearFailed(); } // must happen in any case, so that failure is propagated
var freshActor = NewActor();
_actor = freshActor; // this must happen before postRestart has a chance to fail
if (ReferenceEquals(freshActor, failedActor))
SetActorFields(freshActor); // If the creator returns the same instance, we need to restore our nulled out fields.
UseThreadContext(() => freshActor.AroundPostRestart(cause, null));
if (System.Settings.DebugLifecycle)
Publish(new Debug(_self.Path.ToString(), freshActor.GetType(), "Restarted (" + freshActor + ")"));
// only after parent is up and running again do restart the children which were not stopped
foreach (var survivingChild in survivors)
{
try
{
survivingChild.Restart(cause);
}
catch (Exception e)
{
var child = survivingChild; //Needed since otherwise it would be access to foreach variable in closure
HandleNonFatalOrInterruptedException(() => Publish(new Error(e, _self.Path.ToString(), freshActor.GetType(), "restarting (" + child + ")")));
}
}
}
catch (Exception e)
{
ClearActor(_actor); // in order to prevent preRestart() from happening again
HandleInvokeFailure(new PostRestartException(_self, e, cause), survivors);
}
}
/// <summary>
/// Signals the container that it can release its reference to the actor.
/// </summary>
/// <param name="actor">The actor to remove from the container.</param>
public void Release(ActorBase actor)
{
dependencyResolver.Release(actor);
}
/// <summary>
/// Unwatches the watched actors.
/// </summary>
/// <param name="actorBase">The actor base.</param>
private void UnwatchWatchedActors(ActorBase actorBase)
{
try
{
foreach (ActorRef watchee in watchees)
{
watchee.Tell(new Unwatch(watchee, Self));
}
}
finally
{
watchees.Clear();
terminatedQueue.Clear();
}
}
/// <summary>
/// Plugin behavior applied to <paramref name="actor"/> instance before the actor is being recycled.
/// </summary>
/// <param name="actor">TBD</param>
/// <param name="context">TBD</param>
public virtual void BeforeIncarnated(ActorBase actor, IActorContext context)
{
}
/// <summary>
/// Plugin behavior applied to <paramref name="actor"/> instance when the new one is being created.
/// </summary>
/// <param name="actor">TBD</param>
/// <param name="context">TBD</param>
public virtual void AfterIncarnated(ActorBase actor, IActorContext context)
{
}
/// <summary>
/// TBD
/// </summary>
/// <param name="actor">TBD</param>
protected void SetActorFields(ActorBase actor)
{
actor?.Unclear();
}
private void ReleaseActor(ActorBase a)
{
_props.Release(a);
}
public FailingOuterActor(ActorRef inner)
{
_inner = inner;
Fail = new InnerActor();
}
private void ReleaseActor(ActorBase a)
{
_props.Release(a);
}
public void Release(ActorBase actor)
{
actor = null;
}
protected void UnwatchWatchedActors(ActorBase actor)
{
var watching = _state
.GetWatching()
.ToList();
if (!watching.Any()) return;
MaintainAddressTerminatedSubscription(() =>
{
try
{
// ➡➡➡ NEVER SEND THE SAME SYSTEM MESSAGE OBJECT TO TWO ACTORS
foreach (var watchee in watching.OfType<IInternalActorRef>())
watchee.Tell(new Unwatch(watchee, Self));
}
finally
{
_state = _state.ClearWatching();
_state = _state.ClearTerminated();
}
});
}
protected void ClearActor(ActorBase actor)
{
if (actor != null)
{
var disposable = actor as IDisposable;
if (disposable != null)
{
try
{
disposable.Dispose();
}
catch (Exception e)
{
if (_systemImpl.Log != null)
{
_systemImpl.Log.Error(e, "An error occurred while disposing {0} actor. Reason: {1}",
actor.GetType(), e.Message);
}
}
}
actor.Clear(_systemImpl.DeadLetters);
}
_actorHasBeenCleared = true;
CurrentMessage = null;
behaviorStack = null;
}
