Dependency Injection Code And Documentation #7
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| <?xml version="1.0" encoding="utf-8"?> | ||
| <Project ToolsVersion="15.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> | ||
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| <OutputType>Library</OutputType> | ||
| <AppDesignerFolder>Properties</AppDesignerFolder> | ||
| <RootNamespace>PostSharp.Samples.DependencyResolution.Contextual.Test</RootNamespace> | ||
| <AssemblyName>PostSharp.Samples.DependencyResolution.Contextual.Test</AssemblyName> | ||
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| <DebugSymbols>true</DebugSymbols> | ||
| <DebugType>full</DebugType> | ||
| <Optimize>false</Optimize> | ||
| <OutputPath>bin\Debug\</OutputPath> | ||
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| <ErrorReport>prompt</ErrorReport> | ||
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| <Reference Include="System" /> | ||
| <Reference Include="System.ComponentModel.Composition" /> | ||
| <Reference Include="System.Core" /> | ||
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| <Compile Include="TestLogAspect.cs" /> | ||
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| <Name>PostSharp.Samples.DependencyResolution.Contextual</Name> | ||
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| using System.Reflection; | ||
| using System.Runtime.CompilerServices; | ||
| using System.Runtime.InteropServices; | ||
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| [assembly: AssemblyTitle("PostSharp.Samples.DependencyResolution.Contextual.Test")] | ||
| [assembly: AssemblyDescription("")] | ||
| [assembly: AssemblyConfiguration("")] | ||
| [assembly: AssemblyCompany("")] | ||
| [assembly: AssemblyProduct("PostSharp.Samples.DependencyResolution.Contextual.Test")] | ||
| [assembly: AssemblyCopyright("Copyright © 2019")] | ||
| [assembly: AssemblyTrademark("")] | ||
| [assembly: AssemblyCulture("")] | ||
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| [assembly: ComVisible(false)] | ||
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| [assembly: Guid("232f6d41-893e-4526-9c4a-94c57ef12b6f")] | ||
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| // [assembly: AssemblyVersion("1.0.*")] | ||
| [assembly: AssemblyVersion("1.0.0.0")] | ||
| [assembly: AssemblyFileVersion("1.0.0.0")] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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| using System; | ||
| using System.Text; | ||
| using Microsoft.VisualStudio.TestTools.UnitTesting; | ||
|
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| namespace PostSharp.Samples.DependencyResolution.Contextual.Test | ||
| { | ||
| [TestClass] | ||
| public class TestLogAspect | ||
| { | ||
| [TestMethod] | ||
| public void TestMethod() | ||
| { | ||
| // The ServiceLocator can be initialized for each test. | ||
| using ( | ||
| AspectServiceLocator.AddRule<ILogger>( | ||
| (type, member) => | ||
| type == typeof(LogAspect) && member.Name == "TargetMethod" ? new TestLogger() : null) | ||
| ) | ||
| { | ||
| TestLogger.Clear(); | ||
| TargetMethod(); | ||
| Assert.AreEqual("OnEntry" + Environment.NewLine, TestLogger.GetLog()); | ||
| } | ||
| } | ||
|
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| [LogAspect] | ||
| public void TargetMethod() | ||
| { | ||
| } | ||
| } | ||
|
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| internal class TestLogger : ILogger | ||
| { | ||
| public static readonly StringBuilder stringBuilder = new StringBuilder(); | ||
|
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| public void Log(string message) | ||
| { | ||
| stringBuilder.AppendLine(message); | ||
| } | ||
|
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| public static string GetLog() | ||
| { | ||
| return stringBuilder.ToString(); | ||
| } | ||
|
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| public static void Clear() | ||
| { | ||
| stringBuilder.Clear(); | ||
| } | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <packages> | ||
| <package id="MSTest.TestAdapter" version="1.3.2" targetFramework="net472" /> | ||
| <package id="MSTest.TestFramework" version="1.3.2" targetFramework="net472" /> | ||
| <package id="PostSharp" version="5.0.37" targetFramework="net472" developmentDependency="true" /> | ||
|
There was a problem hiding this comment. Please use the same version of PostSharp as other projects. |
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| <package id="PostSharp.Redist" version="5.0.37" targetFramework="net472" /> | ||
| </packages> | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| <?xml version="1.0" encoding="utf-8" ?> | ||
| <configuration> | ||
| <startup> | ||
| <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" /> | ||
| </startup> | ||
| </configuration> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> | ||
| <Import Project="..\..\packages\PostSharp.5.0.37\build\PostSharp.props" Condition="Exists('..\..\packages\PostSharp.5.0.37\build\PostSharp.props')" /> | ||
| <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" /> | ||
| <PropertyGroup> | ||
| <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> | ||
| <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> | ||
| <ProjectGuid>{9DFD9BDB-FB8B-4066-A62E-670C20CE1213}</ProjectGuid> | ||
| <OutputType>Exe</OutputType> | ||
| <RootNamespace>PostSharp.Samples.DependencyResolution.Contextual</RootNamespace> | ||
| <AssemblyName>PostSharp.Samples.DependencyResolution.Contextual</AssemblyName> | ||
| <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion> | ||
| <FileAlignment>512</FileAlignment> | ||
| <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects> | ||
| <Deterministic>true</Deterministic> | ||
| <NuGetPackageImportStamp> | ||
| </NuGetPackageImportStamp> | ||
| </PropertyGroup> | ||
| <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> | ||
| <PlatformTarget>AnyCPU</PlatformTarget> | ||
| <DebugSymbols>true</DebugSymbols> | ||
| <DebugType>full</DebugType> | ||
| <Optimize>false</Optimize> | ||
| <OutputPath>bin\Debug\</OutputPath> | ||
| <DefineConstants>DEBUG;TRACE</DefineConstants> | ||
| <ErrorReport>prompt</ErrorReport> | ||
| <WarningLevel>4</WarningLevel> | ||
| </PropertyGroup> | ||
| <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> | ||
| <PlatformTarget>AnyCPU</PlatformTarget> | ||
| <DebugType>pdbonly</DebugType> | ||
| <Optimize>true</Optimize> | ||
| <OutputPath>bin\Release\</OutputPath> | ||
| <DefineConstants>TRACE</DefineConstants> | ||
| <ErrorReport>prompt</ErrorReport> | ||
| <WarningLevel>4</WarningLevel> | ||
| </PropertyGroup> | ||
| <ItemGroup> | ||
| <Reference Include="PostSharp, Version=5.0.37.0, Culture=neutral, PublicKeyToken=b13fd38b8f9c99d7, processorArchitecture=MSIL"> | ||
| <HintPath>..\..\packages\PostSharp.Redist.5.0.37\lib\net45\PostSharp.dll</HintPath> | ||
| </Reference> | ||
| <Reference Include="System" /> | ||
| <Reference Include="System.ComponentModel.Composition" /> | ||
| <Reference Include="System.Core" /> | ||
| <Reference Include="System.Xml.Linq" /> | ||
| <Reference Include="System.Data.DataSetExtensions" /> | ||
| <Reference Include="Microsoft.CSharp" /> | ||
| <Reference Include="System.Data" /> | ||
| <Reference Include="System.Net.Http" /> | ||
| <Reference Include="System.Xml" /> | ||
| </ItemGroup> | ||
| <ItemGroup> | ||
| <Compile Include="Program.cs" /> | ||
| <Compile Include="Properties\AssemblyInfo.cs" /> | ||
| </ItemGroup> | ||
| <ItemGroup> | ||
| <None Include="App.config" /> | ||
| <None Include="packages.config" /> | ||
| </ItemGroup> | ||
| <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" /> | ||
| <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild"> | ||
| <PropertyGroup> | ||
| <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText> | ||
| </PropertyGroup> | ||
| <Error Condition="!Exists('..\..\packages\PostSharp.5.0.37\build\PostSharp.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\PostSharp.5.0.37\build\PostSharp.props'))" /> | ||
| <Error Condition="!Exists('..\..\packages\PostSharp.5.0.37\build\PostSharp.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\PostSharp.5.0.37\build\PostSharp.targets'))" /> | ||
| </Target> | ||
| <Import Project="..\..\packages\PostSharp.5.0.37\build\PostSharp.targets" Condition="Exists('..\..\packages\PostSharp.5.0.37\build\PostSharp.targets')" /> | ||
| </Project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.ComponentModel.Composition; | ||
| using System.ComponentModel.Composition.Hosting; | ||
| using System.ComponentModel.Composition.Primitives; | ||
| using System.Reflection; | ||
| using PostSharp.Aspects; | ||
| using PostSharp.Extensibility; | ||
| using PostSharp.Serialization; | ||
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| namespace PostSharp.Samples.DependencyResolution.Contextual | ||
| { | ||
| public interface ILogger | ||
| { | ||
| void Log(string message); | ||
| } | ||
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| public static class AspectServiceLocator | ||
| { | ||
| private static CompositionContainer container; | ||
| private static HashSet<object> rules = new HashSet<object>(); | ||
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| public static void Initialize(ComposablePartCatalog catalog) | ||
| { | ||
| container = new CompositionContainer(catalog); | ||
| } | ||
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| public static Lazy<T> GetService<T>(Type aspectType, MemberInfo targetElement) where T : class | ||
| { | ||
|
There was a problem hiding this comment. I'm not sure |
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| return new Lazy<T>(() => GetServiceImpl<T>(aspectType, targetElement)); | ||
| } | ||
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| private static T GetServiceImpl<T>(Type aspectType, MemberInfo targetElement) where T : class | ||
| { | ||
| // The rule implementation is naive but this is for testing purpose only. | ||
| foreach (object rule in rules) | ||
| { | ||
| DependencyRule<T> typedRule = rule as DependencyRule<T>; | ||
| if (typedRule == null) continue; | ||
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| T service = typedRule.Rule(aspectType, targetElement); | ||
| if (service != null) return service; | ||
| } | ||
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| if (container == null) | ||
| throw new InvalidOperationException(); | ||
|
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| // Fallback to the container, which should be the default and production behavior. | ||
| return container.GetExport<T>().Value; | ||
| } | ||
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| public static IDisposable AddRule<T>(Func<Type, MemberInfo, T> rule) | ||
| { | ||
| DependencyRule<T> dependencyRule = new DependencyRule<T>(rule); | ||
| rules.Add(dependencyRule); | ||
| return dependencyRule; | ||
| } | ||
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| private class DependencyRule<T> : IDisposable | ||
| { | ||
| public DependencyRule(Func<Type, MemberInfo, T> rule) | ||
| { | ||
| this.Rule = rule; | ||
| } | ||
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| public Func<Type, MemberInfo, T> Rule { get; private set; } | ||
|
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| public void Dispose() | ||
| { | ||
| rules.Remove(this); | ||
| } | ||
| } | ||
| } | ||
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| [PSerializable] | ||
| public class LogAspect : OnMethodBoundaryAspect | ||
| { | ||
| private Lazy<ILogger> logger; | ||
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| public override void RuntimeInitialize(MethodBase method) | ||
| { | ||
| logger = AspectServiceLocator.GetService<ILogger>(this.GetType(), method); | ||
| } | ||
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| public override void OnEntry(MethodExecutionArgs args) | ||
| { | ||
| logger.Value.Log("OnEntry"); | ||
| } | ||
|
There was a problem hiding this comment. So you would do |
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| } | ||
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| internal class Program | ||
| { | ||
| private static void Main(string[] args) | ||
| { | ||
| AspectServiceLocator.Initialize(new TypeCatalog(typeof(ConsoleLogger))); | ||
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| LoggedMethod(); | ||
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| Console.ReadLine(); | ||
| } | ||
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| [LogAspect] | ||
| public static void LoggedMethod() | ||
| { | ||
| Console.WriteLine("Hello, world."); | ||
| } | ||
| } | ||
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| [Export(typeof(ILogger))] | ||
| internal class ConsoleLogger : ILogger | ||
| { | ||
| public void Log(string message) | ||
| { | ||
| Console.WriteLine(message); | ||
| } | ||
| } | ||
| } | ||
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Please split all files into single-type files because it's our convention.