public DefaultProducerStageLogic(IProducerStage <K, V, P, TIn, TOut> stage, Attributes attributes) : base(stage.Shape)
{
_stage = stage;
var supervisionStrategy = attributes.GetAttribute <ActorAttributes.SupervisionStrategy>(null);
_decider = supervisionStrategy != null ? supervisionStrategy.Decider : Deciders.StoppingDecider;
_checkForCompletionCallback = GetAsyncCallback(CheckForCompletion);
_failStageCallback = GetAsyncCallback <Exception>(FailStage);
SetHandler(_stage.In,
onPush: () =>
{
var msg = Grab(_stage.In) as IEnvelope <K, V, P>;
switch (msg)
{
case Message <K, V, P> message:
{
var result = new TaskCompletionSource <IResults <K, V, P> >();
AwaitingConfirmation.IncrementAndGet();
Producer.Produce(message.Record, BuildSendCallback(result, onSuccess: report =>
{
result.SetResult(new Result <K, V, P>(report, message));
}));
PostSend(msg);
Push(stage.Out, result.Task as Task <TOut>);
break;
}
case MultiMessage <K, V, P> multiMessage:
{
var tasks = multiMessage.Records.Select(record =>
{
var result = new TaskCompletionSource <MultiResultPart <K, V> >();
AwaitingConfirmation.IncrementAndGet();
Producer.Produce(record, BuildSendCallback(result, report =>
{
result.SetResult(new MultiResultPart <K, V>(report, record));
}));
return(result.Task);
});
PostSend(msg);
var resultTask = Task.WhenAll(tasks).ContinueWith(t => new MultiResult <K, V, P>(t.Result.ToImmutableHashSet(), multiMessage.PassThrough) as IResults <K, V, P>);
Push(stage.Out, resultTask as Task <TOut>);
break;
}
case PassThroughMessage <K, V, P> passThroughMessage:
{
PostSend(msg);
var resultTask = Task.FromResult(new PassThroughResult <K, V, P>(passThroughMessage.PassThrough) as IResults <K, V, P>);
Push(stage.Out, resultTask as Task <TOut>);
break;
}
}
},
onUpstreamFinish: () =>
{
_inIsClosed = true;
_completionState.SetResult(NotUsed.Instance);
_checkForCompletionCallback();
},
onUpstreamFailure: exception =>
{
_inIsClosed = true;
_completionState.SetException(exception);
_checkForCompletionCallback();
});
SetHandler(_stage.Out, onPull: () =>
{
TryPull(_stage.In);
});
}
public DefaultProducerStageLogic(IProducerStage <K, V, P, TIn, TOut> stage, Attributes attributes) : base(stage.Shape)
{
_stage = stage;
// TODO: Move this to the GraphStage.InitialAttribute when it is fixed (https://github.com/akkadotnet/akka.net/issues/5388)
var supervisionStrategy = attributes.GetAttribute(new ActorAttributes.SupervisionStrategy(new DefaultProducerDecider <K, V>().Decide));
_decider = supervisionStrategy.Decider;
SetHandler(_stage.In,
onPush: () =>
{
var msg = Grab(_stage.In) as IEnvelope <K, V, P>;
switch (msg)
{
case Message <K, V, P> message:
{
var result = new TaskCompletionSource <IResults <K, V, P> >();
AwaitingConfirmation.IncrementAndGet();
try
{
var callback = BuildSendCallback(
completion: result,
onSuccess: report =>
{
result.SetResult(new Result <K, V, P>(report, message));
},
onFailure: OnProduceFailure);
Producer.Produce(message.Record, GetAsyncCallback(callback));
PostSend(msg);
Push(stage.Out, result.Task as Task <TOut>);
}
catch (Exception exception)
{
OnProduceFailure(exception);
}
break;
}
case MultiMessage <K, V, P> multiMessage:
{
var tasks = multiMessage.Records.Select(record =>
{
var result = new TaskCompletionSource <MultiResultPart <K, V> >();
AwaitingConfirmation.IncrementAndGet();
var callback = BuildSendCallback(
completion: result,
onSuccess: report =>
{
result.SetResult(new MultiResultPart <K, V>(report, record));
},
onFailure: OnProduceFailure);
try
{
Producer.Produce(record, GetAsyncCallback(callback));
return(result.Task);
}
catch (Exception exception)
{
OnProduceFailure(exception);
return(null);
}
}).Where(t => t != null).ToArray();
if (tasks.Length > 0)
{
PostSend(msg);
var resultTask = Task.WhenAll(tasks).ContinueWith(t => new MultiResult <K, V, P>(t.Result.ToImmutableHashSet(), multiMessage.PassThrough) as IResults <K, V, P>);
Push(stage.Out, resultTask as Task <TOut>);
}
else
{
TryPull(_stage.In);
}
break;
}
case PassThroughMessage <K, V, P> passThroughMessage:
{
PostSend(msg);
var resultTask = Task.FromResult(new PassThroughResult <K, V, P>(passThroughMessage.PassThrough) as IResults <K, V, P>);
Push(stage.Out, resultTask as Task <TOut>);
break;
}
}
},
onUpstreamFinish: () =>
{
_completionState.SetResult(NotUsed.Instance);
CheckForCompletion();
},
onUpstreamFailure: exception =>
{
_completionState.SetException(exception);
CheckForCompletion();
});
SetHandler(_stage.Out, onPull: () =>
{
TryPull(_stage.In);
});
}
