From c851ea9516a420d973a2615860bad2f9254237a2 Mon Sep 17 00:00:00 2001
From: mgroves <mgroves@telligent.com>
Date: Sun, 2 Jan 2011 17:27:28 -0500
Subject: [PATCH] refactored TinyIoC stuff into ServiceLocator class

---
 MonoStockPortfolio/Framework/IoCAttribute.cs  | 58 +------------------
 .../Framework/ServiceLocator.cs               | 36 ++++++++++++
 MonoStockPortfolio/MonoStockPortfolio.csproj  |  1 +
 3 files changed, 40 insertions(+), 55 deletions(-)
 create mode 100644 MonoStockPortfolio/Framework/ServiceLocator.cs

diff --git a/MonoStockPortfolio/Framework/IoCAttribute.cs b/MonoStockPortfolio/Framework/IoCAttribute.cs
index f3215ed..fa20ee4 100644
--- a/MonoStockPortfolio/Framework/IoCAttribute.cs
+++ b/MonoStockPortfolio/Framework/IoCAttribute.cs
@@ -1,78 +1,26 @@
 using Android.Content;
-using MonoStockPortfolio.Core.PortfolioRepositories;
-using MonoStockPortfolio.Core.Services;
-using MonoStockPortfolio.Core.StockData;
 using PostSharp.Aspects;
-using TinyIoC;
 
 namespace MonoStockPortfolio.Framework
 {
     public class IoCAttribute : LocationInterceptionAspect
     {
-        private static Context _context;
-        private static TinyIoCContainer _container;
-
         public override void OnGetValue(LocationInterceptionArgs args)
         {
-            if(_context == null)
+            if (ServiceLocator.Context == null)
             {
                 var activityContext= (Context)args.Instance;
-                _context = activityContext.ApplicationContext.ApplicationContext;
-            }
-
-            if (_container == null)
-            {
-                _container = RegisterTypes();
+                ServiceLocator.Context = activityContext.ApplicationContext.ApplicationContext;
             }
 
             var locationType = args.Location.LocationType;
+            var instantiation = ServiceLocator.Get(locationType);
 
-            var instantiation = _container.Resolve(locationType);
             if(instantiation != null)
             {
                 args.SetNewValue(instantiation);
             }
             args.ProceedGetValue();
         }
-
-        private TinyIoCContainer RegisterTypes()
-        {
-            var container = TinyIoCContainer.Current;
-
-            container.Register<Context>(_context);
-            container.Register<IStockDataProvider, YahooStockDataProvider>().AsMultiInstance();
-            container.Register<IPortfolioService, PortfolioService>().AsMultiInstance();
-            container.Register<IPortfolioRepository, AndroidSqlitePortfolioRepository>().AsMultiInstance();
-
-            return container;
-        }
-
-//        private object GetInstance(Type locationType)
-//        {
-//            if (DependencyMap.ContainsKey(locationType))
-//            {
-//                return DependencyMap[locationType]();
-//            }
-//            return null;
-//        }
-//
-//        private IDictionary<Type, Func<object>> DependencyMap
-//        {
-//            get { return _dependencyMap ?? (_dependencyMap = DefaultDependencies()); }
-//        }
-//
-//        private static IDictionary<Type, Func<object>> _dependencyMap;
-//        private IDictionary<Type, Func<object>> DefaultDependencies()
-//        {
-//            var map = new Dictionary<Type, Func<object>>();
-//            map.Add(typeof(IPortfolioService), () => new PortfolioService(_context));
-//            map.Add(typeof(IPortfolioRepository), () => new AndroidSqlitePortfolioRepository(_context));
-//            return map;
-//        }
-//
-//        public void LoadDependencies(IDictionary<Type, Func<object>> dependencies)
-//        {
-//            _dependencyMap = dependencies;
-//        }
     }
 }
\ No newline at end of file
diff --git a/MonoStockPortfolio/Framework/ServiceLocator.cs b/MonoStockPortfolio/Framework/ServiceLocator.cs
new file mode 100644
index 0000000..8022438
--- /dev/null
+++ b/MonoStockPortfolio/Framework/ServiceLocator.cs
@@ -0,0 +1,36 @@
+using System;
+using Android.Content;
+using MonoStockPortfolio.Core.PortfolioRepositories;
+using MonoStockPortfolio.Core.Services;
+using MonoStockPortfolio.Core.StockData;
+using TinyIoC;
+
+namespace MonoStockPortfolio.Framework
+{
+    public static class ServiceLocator
+    {
+        public static Context Context { get; set; }
+        private static TinyIoCContainer _container;
+
+        public static object Get(Type serviceType)
+        {
+            if (_container == null)
+            {
+                _container = RegisterTypes();
+            }
+            return _container.Resolve(serviceType);
+        }
+
+        private static TinyIoCContainer RegisterTypes()
+        {
+            var container = TinyIoCContainer.Current;
+
+            container.Register<Context>(Context);
+            container.Register<IStockDataProvider, YahooStockDataProvider>().AsMultiInstance();
+            container.Register<IPortfolioService, PortfolioService>().AsMultiInstance();
+            container.Register<IPortfolioRepository, AndroidSqlitePortfolioRepository>().AsMultiInstance();
+
+            return container;
+        }
+    }
+}
\ No newline at end of file
diff --git a/MonoStockPortfolio/MonoStockPortfolio.csproj b/MonoStockPortfolio/MonoStockPortfolio.csproj
index d7b4dd4..c8b58ea 100644
--- a/MonoStockPortfolio/MonoStockPortfolio.csproj
+++ b/MonoStockPortfolio/MonoStockPortfolio.csproj
@@ -67,6 +67,7 @@
     <Compile Include="Activites\PortfolioActivity.designer.cs">
       <DependentUpon>PortfolioActivity.cs</DependentUpon>
     </Compile>
+    <Compile Include="Framework\ServiceLocator.cs" />
     <Compile Include="Framework\TinyIoC.cs" />
     <Compile Include="Resources\Resource.Designer.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />