NDB.Extensions.Caching

NDB.Extensions.Caching/CachingExtensions.cs

@@ -0,0 +1,14 @@
+using Microsoft.Extensions.DependencyInjection;
+using NDB.Extensions.Caching.Services;
+
+namespace NDB.Extensions.Caching
+{
+    public static class CachingExtensions
+    {
+        public static void SetCacheProvider(this IServiceCollection services)
+        {
+            services.AddDistributedMemoryCache();
+            services.AddScoped<ICacheService, CacheService>();
+        }
+    }
+}

NDB.Extensions.Caching/DistributedCachingExtensions.cs

@@ -0,0 +1,22 @@
+using Microsoft.Extensions.Caching.Distributed;
+using Newtonsoft.Json;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace NDB.Extensions.Caching
+{
+    internal static class DistributedCachingExtensions
+    {
+        public static async Task SetAsync<T>(this IDistributedCache distributedCache, string key, T value, DistributedCacheEntryOptions options, CancellationToken token = default) where T : class
+        {
+            var v = JsonConvert.SerializeObject(value);
+            await distributedCache.SetStringAsync(key, v, options, token);
+        }
+
+        public static async Task<T> GetAsync<T>(this IDistributedCache distributedCache, string key, CancellationToken token = default) where T : class
+        {
+            var result = await distributedCache.GetStringAsync(key, token);
+            return result == null ? null : JsonConvert.DeserializeObject<T>(result);
+        }
+    }
+}

NDB.Extensions.Caching/NDB.Extensions.Caching.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Caching.Abstractions" Version="3.1.14" />
+    <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="3.1.14" />
+    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+  </ItemGroup>
+
+</Project>

NDB.Extensions.Caching/Services/CacheService.cs

@@ -0,0 +1,47 @@
+using Microsoft.Extensions.Caching.Distributed;
+using System;
+using System.Collections.Concurrent;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace NDB.Extensions.Caching.Services
+{
+    internal class CacheService : ICacheService
+    {
+        private readonly IDistributedCache _cache;
+        private static readonly ConcurrentDictionary<string, string> _keys = new ConcurrentDictionary<string, string>();
+
+        const int expirationTimeFromNow = 24;
+
+        public CacheService(IDistributedCache cache)
+        {
+            _cache = cache;
+        }
+
+        public async Task<T> GetAsync<T>(string key, CancellationToken token = default(CancellationToken)) where T : class
+        {
+            var result = await _cache.GetAsync<T>(key, token);
+            return result;
+        }
+
+        public async Task SetApplicationDataAsync<T>(string key, T value, CancellationToken token = default(CancellationToken)) where T : class
+        {
+            _keys.TryAdd(key, string.Empty);
+            await _cache.SetAsync<T>(key, value, new DistributedCacheEntryOptions() { AbsoluteExpirationRelativeToNow = TimeSpan.FromHours(expirationTimeFromNow) }, token);
+        }
+
+        public void Reset()
+        {
+            lock (_keys)
+            {
+                var list = _keys.Keys.ToList();
+                foreach (var s in list)
+                {
+                    _cache.Remove(s);
+                }
+                _keys.Clear();
+            }
+        }
+    }
+}

NDB.Extensions.Caching/Services/ICacheService.cs

@@ -0,0 +1,12 @@
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace NDB.Extensions.Caching.Services
+{
+    public interface ICacheService
+    {
+        Task<T> GetAsync<T>(string key, CancellationToken token = default) where T : class;
+        Task SetApplicationDataAsync<T>(string key, T value, CancellationToken token = default) where T : class;
+        void Reset();
+    }
+}

NDB.sln

@@ -50,7 +50,11 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "security", "security", "{42
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "authentication", "authentication", "{B8132F39-6677-4D70-84CA-9747DC9086B3}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NDB.Security.Authentication.Identity", "NDB.Security.Authentication.Identity\NDB.Security.Authentication.Identity.csproj", "{5C0637C8-6BA4-4EAE-97CA-BB8D98B2991A}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NDB.Security.Authentication.Identity", "NDB.Security.Authentication.Identity\NDB.Security.Authentication.Identity.csproj", "{5C0637C8-6BA4-4EAE-97CA-BB8D98B2991A}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "caching", "caching", "{A206A484-3ACF-4032-8B36-AC93A72B0B88}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NDB.Extensions.Caching", "NDB.Extensions.Caching\NDB.Extensions.Caching.csproj", "{3E045EE6-A290-467C-B503-3A6CB0065C97}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -94,6 +98,10 @@ Global
 		{5C0637C8-6BA4-4EAE-97CA-BB8D98B2991A}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{5C0637C8-6BA4-4EAE-97CA-BB8D98B2991A}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{5C0637C8-6BA4-4EAE-97CA-BB8D98B2991A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{3E045EE6-A290-467C-B503-3A6CB0065C97}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{3E045EE6-A290-467C-B503-3A6CB0065C97}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{3E045EE6-A290-467C-B503-3A6CB0065C97}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{3E045EE6-A290-467C-B503-3A6CB0065C97}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -117,6 +125,8 @@ Global
 		{420A97AE-8E1E-4ECF-AAC5-455ABAA9B17E} = {E0202271-4E92-4DB8-900D-B5FD745B9278}
 		{B8132F39-6677-4D70-84CA-9747DC9086B3} = {420A97AE-8E1E-4ECF-AAC5-455ABAA9B17E}
 		{5C0637C8-6BA4-4EAE-97CA-BB8D98B2991A} = {B8132F39-6677-4D70-84CA-9747DC9086B3}
+		{A206A484-3ACF-4032-8B36-AC93A72B0B88} = {B50B55F0-9E6E-4061-9100-E2329A44E76B}
+		{3E045EE6-A290-467C-B503-3A6CB0065C97} = {A206A484-3ACF-4032-8B36-AC93A72B0B88}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {87541BAB-3FAC-4ADB-A7FB-8228DA87843D}