#region License // Copyright (c) 2007 James Newton-King // // 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. #endregion #if !(NET20 || NET35 || NET40 || DNXCORE50 || PORTABLE40 || PORTABLE) || NETSTANDARD1_0 || NETSTANDARD1_3 || NETSTANDARD2_0 || NET6_0_OR_GREATER using System; using System.Collections.Generic; using System.Text; #if DNXCORE50 using Xunit; using Test = Xunit.FactAttribute; using Assert = Newtonsoft.Json.Tests.XUnitAssert; #else using NUnit.Framework; #endif using System.Runtime.Serialization; using Newtonsoft.Json.Linq; using Newtonsoft.Json.Serialization; using Autofac; using Autofac.Core; using Autofac.Core.Activators.Reflection; using Newtonsoft.Json.Tests.Serialization; using LogService = Newtonsoft.Json.Tests.Serialization.LogManager; namespace Newtonsoft.Json.Tests.Documentation.Samples.Serializer { [TestFixture] public class DeserializeWithDependencyInjection : TestFixtureBase { #region Types public class AutofacContractResolver : DefaultContractResolver { private readonly IContainer _container; public AutofacContractResolver(IContainer container) { _container = container; } protected override JsonObjectContract CreateObjectContract(Type objectType) { // use Autofac to create types that have been registered with it if (_container.IsRegistered(objectType)) { JsonObjectContract contract = ResolveContact(objectType); contract.DefaultCreator = () => _container.Resolve(objectType); return contract; } return base.CreateObjectContract(objectType); } private JsonObjectContract ResolveContact(Type objectType) { // attempt to create the contact from the resolved type IComponentRegistration registration; if (_container.ComponentRegistry.TryGetRegistration(new TypedService(objectType), out registration)) { Type viewType = (registration.Activator as ReflectionActivator)?.LimitType; if (viewType != null) { return base.CreateObjectContract(viewType); } } // fall back to using the registered type return base.CreateObjectContract(objectType); } } public class TaskController { private readonly ITaskRepository _repository; private readonly ILogger _logger; public TaskController(ITaskRepository repository, ILogger logger) { _repository = repository; _logger = logger; } public ITaskRepository Repository { get { return _repository; } } public ILogger Logger { get { return _logger; } } } #endregion [Test] public void Example() { #region Usage ContainerBuilder builder = new ContainerBuilder(); builder.RegisterType().As(); builder.RegisterType(); builder.Register(c => new LogService(new DateTime(2000, 12, 12))).As(); IContainer container = builder.Build(); AutofacContractResolver contractResolver = new AutofacContractResolver(container); string json = @"{ 'Logger': { 'Level':'Debug' } }"; // ITaskRespository and ILogger constructor parameters are injected by Autofac TaskController controller = JsonConvert.DeserializeObject(json, new JsonSerializerSettings { ContractResolver = contractResolver }); Console.WriteLine(controller.Repository.GetType().Name); // TaskRepository #endregion Assert.IsNotNull(controller); Assert.IsNotNull(controller.Logger); Assert.AreEqual(new DateTime(2000, 12, 12), controller.Logger.DateTime); Assert.AreEqual("Debug", controller.Logger.Level); } } } #endif