public static void Execute <TPipeline>(
[NotNull] TPipeline pipeline,
[NotNull] IInvocationState <TPipeline> initialState)
where TPipeline : InvocationPipelineBase
{
var nextState = initialState.MakeTransition(pipeline);
while (nextState != null)
{
nextState = nextState.MakeTransition(pipeline);
}
}
/// <summary> /// Возвращает признак того, что необходимо прервать выполнение текущего действия и /// выполнить переход в состояние <paramref name="transition"/>. /// </summary> /// <param name="aspect">Текущий аспект.</param> /// <param name="transition">Состояние, в которое необходимо выполнить переход.</param> /// <param name="pipeline">Пайплайн.</param> /// <returns>Признак того, что необходимо прервать выполнение текущего действия.</returns> protected abstract bool ShouldBreak(TPipeline pipeline, MethodBoundaryAspect aspect, out IInvocationState <TPipeline> transition);
protected override bool ShouldBreak(TPipeline pipeline, MethodBoundaryAspect aspect, out IInvocationState <TPipeline> transition)
{
var flow = pipeline.FlowBehavior;
switch (flow)
{
case FlowBehavior.Return:
case FlowBehavior.ThrowException:
transition = new FinallyState <TPipeline>(BoundaryAspects.TakeBeforeExclusive(aspect));
break;
default:
transition = null; break;
}
return(transition != null);
}
/// <summary>
/// Инициализирует экземпляр <see cref="AsyncInvocationStateSyncAdapter{TPipeline}"/>.
/// </summary>
/// <param name="invocationState">Состояние вызова.</param>
public AsyncInvocationStateSyncAdapter(IInvocationState <TPipeline> invocationState)
{
_invocationState = invocationState;
}
protected override bool ShouldBreak(TPipeline pipeline, MethodBoundaryAspect aspect, out IInvocationState <TPipeline> transition)
{
var flow = pipeline.FlowBehavior;
switch (flow)
{
// OnEntry -> Return(value) -> OnSuccess [only executed] -> OnExit [only executed]
case FlowBehavior.Return:
transition = new SuccessState <TPipeline>(BoundaryAspects.TakeBeforeExclusive(aspect));
break;
// OnEntry -> Throw(exception) -> OnExit [only executed]
case FlowBehavior.ThrowException:
transition = new FinallyState <TPipeline>(BoundaryAspects.TakeBeforeExclusive(aspect));
break;
// OnEntry -> Rethrow(exception) -> OnException [all except current] -> {maybe: OnSuccess} -> OnExit
case FlowBehavior.RethrowException:
transition = new CatchState <TPipeline>(BoundaryAspects)
{
IgnoredAspects = new[] { aspect }
};
break;
// OnEntry -> ContinueFaulted(value) -> OnSuccess [all] -> OnExit
case FlowBehavior.UpdateReturnValue:
transition = new SuccessState <TPipeline>(BoundaryAspects);
break;
default:
transition = null; break;
}
return(transition != null);
}
protected override bool ShouldBreak(TPipeline pipeline, MethodBoundaryAspect aspect, out IInvocationState <TPipeline> transition)
{
var flow = pipeline.FlowBehavior;
switch (flow)
{
// OnEntry -> MethodCall [exception] -> Catch [return] -> OnSuccess [only executed]
// для уже выполнившихся до Return аспектов должно казаться что метод выполнился без
// ошибок и вернул результат.
case FlowBehavior.Return:
transition = new SuccessState <TPipeline>(BoundaryAspects.TakeBeforeExclusive(aspect));
break;
case FlowBehavior.ThrowException:
transition = new FinallyState <TPipeline>(BoundaryAspects.TakeBeforeExclusive(aspect));
break;
// OnEntry -> MethodCall [exception] -> Catch [Swallow] -> OnSuccess [all except executed]
case FlowBehavior.UpdateReturnValue:
transition = new SuccessState <TPipeline>(BoundaryAspects)
{
IgnoredAspects = BoundaryAspects.TakeBeforeInclusive(aspect)
.ToArray()
};
break;
default:
transition = null;
break;
}
return(transition != null);
}
