Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

external/aspnetwebstack/src/System.Web.Mvc/ControllerDescriptor.cs

@@ -0,0 +1,80 @@
+// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
+
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Reflection;
+
+namespace System.Web.Mvc
+{
+    public abstract class ControllerDescriptor : ICustomAttributeProvider, IUniquelyIdentifiable
+    {
+        private readonly Lazy<string> _uniqueId;
+
+        protected ControllerDescriptor()
+        {
+            _uniqueId = new Lazy<string>(CreateUniqueId);
+        }
+
+        public virtual string ControllerName
+        {
+            get
+            {
+                string typeName = ControllerType.Name;
+                if (typeName.EndsWith("Controller", StringComparison.OrdinalIgnoreCase))
+                {
+                    return typeName.Substring(0, typeName.Length - "Controller".Length);
+                }
+
+                return typeName;
+            }
+        }
+
+        public abstract Type ControllerType { get; }
+
+        [SuppressMessage("Microsoft.Security", "CA2119:SealMethodsThatSatisfyPrivateInterfaces", Justification = "This is overridden elsewhere in System.Web.Mvc")]
+        public virtual string UniqueId
+        {
+            get { return _uniqueId.Value; }
+        }
+
+        private string CreateUniqueId()
+        {
+            return DescriptorUtil.CreateUniqueId(GetType(), ControllerName, ControllerType);
+        }
+
+        public abstract ActionDescriptor FindAction(ControllerContext controllerContext, string actionName);
+
+        public abstract ActionDescriptor[] GetCanonicalActions();
+
+        public virtual object[] GetCustomAttributes(bool inherit)
+        {
+            return GetCustomAttributes(typeof(object), inherit);
+        }
+
+        public virtual object[] GetCustomAttributes(Type attributeType, bool inherit)
+        {
+            if (attributeType == null)
+            {
+                throw new ArgumentNullException("attributeType");
+            }
+
+            return (object[])Array.CreateInstance(attributeType, 0);
+        }
+
+        public virtual IEnumerable<FilterAttribute> GetFilterAttributes(bool useCache)
+        {
+            return GetCustomAttributes(typeof(FilterAttribute), inherit: true).Cast<FilterAttribute>();
+        }
+
+        public virtual bool IsDefined(Type attributeType, bool inherit)
+        {
+            if (attributeType == null)
+            {
+                throw new ArgumentNullException("attributeType");
+            }
+
+            return false;
+        }
+    }
+}