public virtual async Task InvokeAsync()
{
try
{
_diagnosticSource.BeforeAction(
_actionContext.ActionDescriptor,
_actionContext.HttpContext,
_actionContext.RouteData);
using (_logger.ActionScope(_actionContext.ActionDescriptor))
{
_logger.ExecutingAction(_actionContext.ActionDescriptor);
var startTimestamp = _logger.IsEnabled(LogLevel.Information) ? Stopwatch.GetTimestamp() : 0;
try
{
await InvokeFilterPipelineAsync();
}
finally
{
ReleaseResources();
_logger.ExecutedAction(_actionContext.ActionDescriptor, startTimestamp);
}
}
}
finally
{
_diagnosticSource.AfterAction(
_actionContext.ActionDescriptor,
_actionContext.HttpContext,
_actionContext.RouteData);
}
}
private async Task InvokeActionAsync(HttpContext httpContext, ActionDescriptor actionDescriptor)
{
var routeData = httpContext.GetRouteData();
try
{
_diagnosticSource.BeforeAction(actionDescriptor, httpContext, routeData);
using (_logger.ActionScope(actionDescriptor))
{
_logger.ExecutingAction(actionDescriptor);
var startTimestamp = _logger.IsEnabled(LogLevel.Information) ? Stopwatch.GetTimestamp() : 0;
var actionContext = new ActionContext(httpContext, routeData, actionDescriptor);
if (_actionContextAccessor != null)
{
_actionContextAccessor.ActionContext = actionContext;
}
var invoker = _actionInvokerFactory.CreateInvoker(actionContext);
if (invoker == null)
{
throw new InvalidOperationException(
Resources.FormatActionInvokerFactory_CouldNotCreateInvoker(
actionDescriptor.DisplayName));
}
await invoker.InvokeAsync();
_logger.ExecutedAction(actionDescriptor, startTimestamp);
}
}
finally
{
_diagnosticSource.AfterAction(actionDescriptor, httpContext, routeData);
}
}
public async Task RouteAsync(RouteContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var services = context.HttpContext.RequestServices;
// Verify if AddMvc was done before calling UseMvc
// We use the MvcMarkerService to make sure if all the services were added.
MvcServicesHelper.ThrowIfMvcNotRegistered(services);
EnsureServices(context.HttpContext);
var actionDescriptor = await _actionSelector.SelectAsync(context);
if (actionDescriptor == null)
{
_logger.NoActionsMatched();
return;
}
// Replacing the route data allows any code running here to dirty the route values or data-tokens
// without affecting something upstream.
var oldRouteData = context.RouteData;
var newRouteData = new RouteData(oldRouteData);
if (actionDescriptor.RouteValueDefaults != null)
{
foreach (var kvp in actionDescriptor.RouteValueDefaults)
{
if (!newRouteData.Values.ContainsKey(kvp.Key))
{
newRouteData.Values.Add(kvp.Key, kvp.Value);
}
}
}
// Removing RouteGroup from RouteValues to simulate the result of conventional routing
newRouteData.Values.Remove(AttributeRouting.RouteGroupKey);
try
{
context.RouteData = newRouteData;
_diagnosticSource.BeforeAction(actionDescriptor, context.HttpContext, context.RouteData);
using (_logger.ActionScope(actionDescriptor))
{
_logger.ExecutingAction(actionDescriptor);
var startTime = Environment.TickCount;
await InvokeActionAsync(context, actionDescriptor);
context.IsHandled = true;
_logger.ExecutedAction(actionDescriptor, startTime);
}
}
finally
{
_diagnosticSource.AfterAction(actionDescriptor, context.HttpContext, context.RouteData);
if (!context.IsHandled)
{
context.RouteData = oldRouteData;
}
}
}
