Renamed Umbraco.Abstractions to Umbraco.Core

src/Umbraco.Core/PublishedModelFactoryExtensions.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using Umbraco.Core.Models.PublishedContent;
+
+namespace Umbraco.Core
+{
+    /// <summary>
+    /// Provides extension methods for <see cref="IPublishedModelFactory"/>.
+    /// </summary>
+    public static class PublishedModelFactoryExtensions
+    {
+        /// <summary>
+        /// Returns true if the current <see cref="IPublishedModelFactory"/> is an implementation of <see cref="ILivePublishedModelFactory"/>
+        /// </summary>
+        /// <param name="factory"></param>
+        /// <returns></returns>
+        public static bool IsLiveFactory(this IPublishedModelFactory factory) => factory is ILivePublishedModelFactory;
+
+        /// <summary>
+        /// Sets a flag to reset the ModelsBuilder models if the <see cref="IPublishedModelFactory"/> is <see cref="ILivePublishedModelFactory"/>
+        /// </summary>
+        /// <param name="factory"></param>
+        /// <param name="action"></param>
+        /// <remarks>
+        /// This does not recompile the pure live models, only sets a flag to tell models builder to recompile when they are requested.
+        /// </remarks>
+        internal static void WithSafeLiveFactoryReset(this IPublishedModelFactory factory, Action action)
+        {
+            if (factory is ILivePublishedModelFactory liveFactory)
+            {
+                lock (liveFactory.SyncRoot)
+                {
+                    // TODO: Fix this in 8.3! - We need to change the ILivePublishedModelFactory interface to have a Reset method and then when we have an embedded MB
+                    // version we will publicize the ResetModels (and change the name to Reset).
+                    // For now, this will suffice and we'll use reflection, there should be no other implementation of ILivePublishedModelFactory.
+                    // Calling ResetModels resets the MB flag so that the next time EnsureModels is called (which is called when nucache lazily calls CreateModel) it will
+                    // trigger the recompiling of pure live models.
+                    var resetMethod = liveFactory.GetType().GetMethod("ResetModels", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);
+                    if (resetMethod != null)
+                        resetMethod.Invoke(liveFactory, null);
+
+                    action();
+                }
+            }
+            else
+            {
+                action();
+            }
+        }
+
+    }
+}