Migrated ProfilingViewEngine.cs

Signed-off-by: Bjarke Berg <mail@bergmania.dk>

src/Umbraco.Web.Website/ViewEngines/ProfilingViewEngine.cs

@@ -0,0 +1,45 @@
+
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.ViewEngines;
+using Umbraco.Core.Logging;
+
+namespace Umbraco.Web.Website.ViewEngines
+{
+    public class ProfilingViewEngine: IViewEngine
+    {
+        internal readonly IViewEngine Inner;
+        private readonly IProfiler _profiler;
+        private readonly string _name;
+
+        public ProfilingViewEngine(IViewEngine inner, IProfiler profiler)
+        {
+            Inner = inner;
+            _profiler = profiler;
+            _name = inner.GetType().Name;
+        }
+
+        public ViewEngineResult FindView(ActionContext context, string viewName, bool isMainPage)
+        {
+            using (_profiler.Step(string.Format("{0}.FindView, {1}, {2}", _name, viewName, isMainPage)))
+            {
+                return WrapResult(Inner.FindView(context, viewName, isMainPage));
+            }
+        }
+
+        private static ViewEngineResult WrapResult(ViewEngineResult innerResult)
+        {
+            var profiledResult = innerResult.View is null
+                ? ViewEngineResult.NotFound(innerResult.ViewName, innerResult.SearchedLocations)
+                : ViewEngineResult.Found(innerResult.ViewName, innerResult.View);
+            return profiledResult;
+        }
+
+        public ViewEngineResult GetView(string executingFilePath, string viewPath, bool isMainPage)
+        {
+            using (_profiler.Step(string.Format("{0}.GetView, {1}, {2}, {3}", _name, executingFilePath, viewPath, isMainPage)))
+            {
+                return Inner.GetView(executingFilePath, viewPath, isMainPage);
+            }
+        }
+    }
+}