EntityCore

Esyur.Stores.EntityCore/EsyurProxyRewrite.cs

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+/*
+ 
+Copyright (c) 2020 Ahmed Kh. Zamil
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+using System.Text;
+using Esyur.Proxy;
+using Esyur.Resource;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Internal;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using Microsoft.EntityFrameworkCore.Metadata.Conventions;
+using Microsoft.EntityFrameworkCore.Metadata.Conventions.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata.Internal;
+
+namespace Esyur.Stores.EntityCore
+{
+    public class EsyurProxyRewrite : IModelFinalizedConvention
+    {
+        private static readonly MethodInfo _createInstance
+    = typeof(EsyurProxyRewrite).GetTypeInfo().GetDeclaredMethod(nameof(EsyurProxyRewrite.CreateInstance));
+
+        private readonly ConstructorBindingConvention _directBindingConvention;
+
+        public static object CreateInstance(
+    IDbContextOptions dbContextOptions,
+    IEntityType entityType,
+    ILazyLoader loader,
+    object[] constructorArguments)
+        {
+            var options = dbContextOptions.FindExtension<EsyurExtensionOptions>();
+
+            return CreateInstance2(
+                options,
+                entityType,
+                loader,
+                constructorArguments);
+        }
+
+
+        public static object CreateInstance2(
+    EsyurExtensionOptions options,
+    IEntityType entityType,
+    ILazyLoader loader,
+    object[] constructorArguments)
+        {
+            var manager = options.Store.Instance.Managers.Count > 0 ? options.Store.Instance.Managers.First() : null;
+            return Warehouse.New(entityType.ClrType, "", options.Store, null, manager);
+        }
+
+ 
+
+        public EsyurProxyRewrite(EsyurExtensionOptions ext, ProviderConventionSetBuilderDependencies conventionSetBuilderDependencies)
+        {
+            _directBindingConvention = new ConstructorBindingConvention(conventionSetBuilderDependencies);
+
+        }
+
+        public void ProcessModelFinalized(IConventionModelBuilder modelBuilder, IConventionContext<IConventionModelBuilder> context)
+        {
+            foreach (var entityType in modelBuilder.Metadata.GetEntityTypes())
+            {
+                var proxyType = ResourceProxy.GetProxy(entityType.ClrType);
+
+                var ann = entityType.GetAnnotation(CoreAnnotationNames.ConstructorBinding);
+
+                var binding = (InstantiationBinding)entityType[CoreAnnotationNames.ConstructorBinding];
+                if (binding == null)
+                    _directBindingConvention.ProcessModelFinalized(modelBuilder, context);
+
+                binding = (InstantiationBinding)entityType[CoreAnnotationNames.ConstructorBinding];
+
+
+                try
+
+                {
+                    entityType.SetAnnotation(
+                        CoreAnnotationNames.ConstructorBinding,
+                        new FactoryMethodBinding(
+                            _createInstance,
+                            new List<ParameterBinding>
+                                {
+                                new DependencyInjectionParameterBinding(typeof(IDbContextOptions), typeof(IDbContextOptions)),
+                                new EntityTypeParameterBinding(),
+                                new DependencyInjectionParameterBinding(typeof(ILazyLoader), typeof(ILazyLoader)),
+                                 new ObjectArrayParameterBinding(binding.ParameterBindings)
+                                },
+                            proxyType));
+                }
+                catch
+                {
+                }
+
+            }
+        }
+    }
+}