-Documentation

2015-02-16 23:31:52 +13:00
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+#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
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using NUnit.Framework;
+using System.Runtime.Serialization;
+using Newtonsoft.Json.Linq;
+using Newtonsoft.Json.Serialization;
+using Autofac;
+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)
+            {
+                JsonObjectContract contract = base.CreateObjectContract(objectType);
+
+                // use Autofac to create types that have been registered with it
+                if (_container.IsRegistered(objectType))
+                    contract.DefaultCreator = () => _container.Resolve(objectType);
+
+                return contract;
+            }
+        }
+
+        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<TaskRepository>().As<ITaskRepository>();
+            builder.RegisterType<TaskController>();
+            builder.Register(c => new LogService(new DateTime(2000, 12, 12))).As<ILogger>();
+
+            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<TaskController>(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);
+        }
+    }
+}