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Filter discovery

This commit is contained in:
Yishai Galatzer 2014-03-03 01:49:55 -08:00
parent 4d90d590a9
commit 1783a06dc0
1 changed files with 21 additions and 21 deletions
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42
src/Microsoft.AspNet.Mvc.Core/ReflectedActionDescriptorProvider.cs
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@ -43,8 +43,8 @@ namespace Microsoft.AspNet.Mvc
foreach (var cd in controllerDescriptors) foreach (var cd in controllerDescriptors)
{ {
var controllerAttributes = cd.ControllerTypeInfo.GetCustomAttributes(inherit: true).ToArray(); var controllerFilters = GetOrderedFilterAttributes(cd.ControllerTypeInfo);
var filtersFromController = GetOrderedFilterAttributes(controllerAttributes);
bool allowAnonymous = IsAnonymous(controllerAttributes); bool allowAnonymous = IsAnonymous(controllerAttributes);
@ -59,24 +59,24 @@ namespace Microsoft.AspNet.Mvc
foreach (var actionInfo in actionInfos) foreach (var actionInfo in actionInfos)
{ {
yield return BuildDescriptor(cd, methodInfo, actionInfo, filtersFromController, allowAnonymous); yield return BuildDescriptor(cd, methodInfo, actionInfo, controllerFilters);
} }
} }
} }
} }
private bool IsAnonymous(object[] attributes) private IFilter[] GetOrderedFilterAttributes(MemberInfo memberInfo)
{
return attributes.OfType<AllowAnonymousAttribute>().Any();
}
private IFilter[] GetOrderedFilterAttributes(object[] attributes)
{ {
var attributes = memberInfo.GetCustomAttributes(inherit: true);
var filters = attributes.OfType<IFilter>().OrderByDescending(filter => filter.Order); var filters = attributes.OfType<IFilter>().OrderByDescending(filter => filter.Order);
return filters.ToArray(); return filters.ToArray();
} }
private ReflectedActionDescriptor BuildDescriptor(ControllerDescriptor controllerDescriptor,
MethodInfo methodInfo,
ActionInfo actionInfo,
IFilter[] controllerFilters)
private ReflectedActionDescriptor BuildDescriptor(ControllerDescriptor controllerDescriptor, private ReflectedActionDescriptor BuildDescriptor(ControllerDescriptor controllerDescriptor,
MethodInfo methodInfo, MethodInfo methodInfo,
ActionInfo actionInfo, ActionInfo actionInfo,
@ -115,10 +115,10 @@ namespace Microsoft.AspNet.Mvc
ad.Parameters = methodInfo.GetParameters().Select(p => _parameterDescriptorFactory.GetDescriptor(p)).ToList(); ad.Parameters = methodInfo.GetParameters().Select(p => _parameterDescriptorFactory.GetDescriptor(p)).ToList();
var attributes = methodInfo.GetCustomAttributes(inherit: true).ToArray();
// TODO: add ordering support such that action filters are ahead of controller filters if they have the same order // TODO: add ordering support such that action filters are ahead of controller filters if they have the same order
var filtersFromAction = GetOrderedFilterAttributes(attributes); var actionFilters = GetOrderedFilterAttributes(methodInfo);
ad.Filters = MergeSorted(actionFilters, controllerFilters);
ad.Filters = MergeSorted(filtersFromAction, controllerFilters); ad.Filters = MergeSorted(filtersFromAction, controllerFilters);
@ -127,29 +127,29 @@ namespace Microsoft.AspNet.Mvc
return ad; return ad;
} }
private List<IFilter> MergeSorted(IFilter[] filtersFromAction, IFilter[] filtersFromController) internal List<IFilter> MergeSorted(IFilter[] actionFilters, IFilter[] controllerFilters)
{ {
var list = new List<IFilter>(); var list = new List<IFilter>();
var count = filtersFromAction.Length + filtersFromController.Length; var count = actionFilters.Length + controllerFilters.Length;
for (int i = 0, j = 0; i + j < count; ) for (int i = 0, j = 0; i + j < count; )
{ {
if (i >= filtersFromAction.Length) if (i >= actionFilters.Length)
{ {
list.Add(filtersFromController[j++]); list.Add(controllerFilters[j++]);
} }
else if (j >= filtersFromController.Length) else if (j >= controllerFilters.Length)
{ {
list.Add(filtersFromAction[i++]); list.Add(actionFilters[i++]);
} }
else if (filtersFromAction[i].Order >= filtersFromController[j].Order) else if (actionFilters[i].Order >= controllerFilters[j].Order)
{ {
list.Add(filtersFromAction[i++]); list.Add(actionFilters[i++]);
} }
else else
{ {
list.Add(filtersFromController[j++]); list.Add(controllerFilters[j++]);
} }
} }