Merge pull request #1 from bitfaster/users/alexpeck/outline

outline

Author: bitfaster

BitFaster.Caching.DependencyInjection/BitFaster.Caching.DependencyInjection.sln

@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.3.32819.101
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BitFaster.Caching.DependencyInjection", "BitFaster.Caching.DependencyInjection\BitFaster.Caching.DependencyInjection.csproj", "{337F4327-E35A-40F6-8A6C-7FA47A962D49}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{337F4327-E35A-40F6-8A6C-7FA47A962D49}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{337F4327-E35A-40F6-8A6C-7FA47A962D49}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{337F4327-E35A-40F6-8A6C-7FA47A962D49}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{337F4327-E35A-40F6-8A6C-7FA47A962D49}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {444CBAA7-C7F1-4332-9162-9D98701D3883}
+	EndGlobalSection
+EndGlobal

BitFaster.Caching.DependencyInjection/BitFaster.Caching.DependencyInjection/BitFaster.Caching.DependencyInjection.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="BitFaster.Caching" Version="2.1.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="2.1.0" />
+  </ItemGroup>
+
+</Project>

BitFaster.Caching.DependencyInjection/BitFaster.Caching.DependencyInjection/CacheExtensions.cs

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+using BitFaster.Caching.Lfu;
+using BitFaster.Caching.Lru;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.DependencyInjection.Extensions;
+using System;
+
+namespace BitFaster.Caching.DependencyInjection
+{
+    /// <summary>
+    /// Extension methods for setting up caches in an <see cref="IServiceCollection" />.
+    /// </summary>
+    public static class CacheExtensions
+    {
+        /// <summary>
+        /// Adds a <see cref="ConcurrentLru{K,V}" />to the <see cref="IServiceCollection" />.
+        /// </summary>
+        /// <typeparam name="K">The type of the key.</typeparam>
+        /// <typeparam name="V">The type of the values.</typeparam>
+        /// <param name="services">The <see cref="IServiceCollection" /> to add services to.</param>
+        /// <param name="configure">A delegate which can use a cache builder to build a cache.</param>
+        /// <returns>The <see cref="IServiceCollection"/> so that additional calls can be chained.</returns>
+        public static IServiceCollection AddConcurrentLru<K, V>(this IServiceCollection services, Action<ConcurrentLruBuilder<K, V>> configure)
+        {
+            // this is not so simple because the builder can change the return type.
+
+            var builder = new ConcurrentLruBuilder<K, V>();
+            configure(builder);
+            services.TryAddSingleton<ICache<K, V>>(builder.Build());
+            return services;
+        }
+
+        public static IServiceCollection AddConcurrentLfu<K, V>(this IServiceCollection services, Action<ConcurrentLfuBuilder<K, V>> configure)
+        {
+            var builder = new ConcurrentLfuBuilder<K, V>();
+            configure(builder);
+            services.TryAddSingleton<ICache<K, V>>(builder.Build());
+            return services;
+        }
+    }
+}