/// <inheritdoc />
public void OnProvidersExecuting(ActionInvokerProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (context.ActionContext.ActionDescriptor is ControllerActionDescriptor)
{
var controllerContext = new ControllerContext(context.ActionContext);
// PERF: These are rarely going to be changed, so let's go copy-on-write.
controllerContext.ValueProviderFactories = new CopyOnWriteList <IValueProviderFactory>(_valueProviderFactories);
controllerContext.ModelState.MaxAllowedErrors = _maxModelValidationErrors;
var cacheResult = _controllerActionInvokerCache.GetCachedResult(controllerContext);
var invoker = new ControllerActionInvoker(
_logger,
_diagnosticListener,
_mapper,
controllerContext,
cacheResult.cacheEntry,
cacheResult.filters);
context.Result = invoker;
}
}
static async Task Awaited(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted)
{
try
{
await lastTask;
while (!isCompleted)
{
await invoker.Next(ref next, ref scope, ref state, ref isCompleted);
}
}
catch (Exception exception)
{
invoker._actionExecutedContext = new ActionExecutedContext(invoker._controllerContext, invoker._filters, invoker._instance)
{
ExceptionDispatchInfo = ExceptionDispatchInfo.Capture(exception),
};
}
Debug.Assert(invoker._actionExecutedContext != null);
}
