非nfx下使用Microsoft.Extensions.Caching.Memory

Author: xljiulang

WebApiClient.Test/Internal/ResponseCacheProviderTest.cs

@@ -1,6 +1,7 @@
 #if !NETSTANDARD1_3
 using System;
 using System.Threading.Tasks;
+using WebApiClient.Defaults;
 using Xunit;
 
 namespace WebApiClient.Test.Internal

WebApiClient/Defaults/ResponseCacheProvider.cfx.cs

@@ -0,0 +1,73 @@
+#if !NET45 && !NET46
+
+using Microsoft.Extensions.Caching.Memory;
+using Microsoft.Extensions.Options;
+using System;
+using System.Threading.Tasks;
+
+namespace WebApiClient.Defaults
+{
+    /// <summary>
+    /// 表示Api响应结果缓存提供者的接口
+    /// </summary>
+    public class ResponseCacheProvider : Disposable, IResponseCacheProvider
+    {
+        /// <summary>
+        /// 默认实例
+        /// </summary>
+        public static readonly ResponseCacheProvider Instance = new ResponseCacheProvider();
+
+        /// <summary>
+        /// 内存缓存
+        /// </summary>
+        private readonly MemoryCache cache = new MemoryCache(Options.Create(new MemoryCacheOptions()));
+
+        /// <summary>
+        /// 获取提供者的友好名称
+        /// </summary>
+        public string Name { get; } = nameof(MemoryCache);
+
+        /// <summary>
+        /// 从缓存中获取响应实体
+        /// </summary>
+        /// <param name="key">键</param>
+        /// <returns></returns>
+        public Task<ResponseCacheResult> GetAsync(string key)
+        {
+            if (this.cache.TryGetValue(key, out var value) == false)
+            {
+                var result = ResponseCacheResult.NoValue;
+                return Task.FromResult(result);
+            }
+            else
+            {
+                var val = value as ResponseCacheEntry;
+                var result = new ResponseCacheResult(val, true);
+                return Task.FromResult(result);
+            }
+        }
+
+        /// <summary>
+        /// 设置响应实体到缓存
+        /// </summary>
+        /// <param name="key">键</param>
+        /// <param name="entry">缓存实体</param>
+        /// <param name="expiration">有效时间</param>
+        /// <returns></returns>
+        public Task SetAsync(string key, ResponseCacheEntry entry, TimeSpan expiration)
+        {
+            this.cache.Set(key, entry, DateTimeOffset.Now.Add(expiration));
+            return ApiTask.CompletedTask;
+        }
+
+        /// <summary>
+        /// 释放资源
+        /// </summary>
+        /// <param name="disposing">是否也释放托管资源</param>
+        protected override void Dispose(bool disposing)
+        {
+            this.cache.Dispose();
+        }
+    }
+}
+#endif

WebApiClient/Internal/ResponseCacheProvider.cs renamed to WebApiClient/Defaults/ResponseCacheProvider.nfx.cs

@@ -1,14 +1,15 @@
-#if !NETSTANDARD1_3
+#if NET45 || NET46
+
 using System;
 using System.Runtime.Caching;
 using System.Threading.Tasks;
 
-namespace WebApiClient
+namespace WebApiClient.Defaults
 {
     /// <summary>
     /// 表示Api响应结果缓存提供者的接口
     /// </summary>
-    class ResponseCacheProvider : Disposable, IResponseCacheProvider
+    public class ResponseCacheProvider : Disposable, IResponseCacheProvider
     {
         /// <summary>
         /// 默认实例

WebApiClient/HttpApiConfig.cs

@@ -81,10 +81,8 @@ public class HttpApiConfig : Disposable
         /// <summary>
         /// 获取或设置Api的缓存提供者
         /// </summary>
-        public IResponseCacheProvider ResponseCacheProvider { get; set; }
-#if !NETSTANDARD1_3
-        = WebApiClient.ResponseCacheProvider.Instance;
-#endif 
+        public IResponseCacheProvider ResponseCacheProvider { get; set; } = Defaults.ResponseCacheProvider.Instance;
+
 
         /// <summary>
         /// 获取或设置服务提供者