cnblogs · ikesnowy · Jun 16, 2024 · Jun 16, 2024
diff --git a/Cnblogs.Architecture.sln b/Cnblogs.Architecture.sln
@@ -62,6 +62,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Cnblogs.Architecture.Ddd.In
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Cnblogs.Architecture.Ddd.Infrastructure.FileProviders.AliyunOss", "src\Cnblogs.Architecture.Ddd.Infrastructure.FileProviders.AliyunOss\Cnblogs.Architecture.Ddd.Infrastructure.FileProviders.AliyunOss.csproj", "{9C76E136-1D79-408C-A17F-FD63632B00A9}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Cnblogs.Architecture.Ddd.Infrastructure.CacheProviders.Redis", "src\Cnblogs.Architecture.Ddd.Infrastructure.CacheProviders.Redis\Cnblogs.Architecture.Ddd.Infrastructure.CacheProviders.Redis.csproj", "{1FF58B65-6C83-4F0C-909A-6606B4C754B8}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -94,6 +96,7 @@ Global
 		{73665E32-3D10-4F71-B893-4C65F36332D0} = {D3A6DF01-017E-4088-936C-B3791F41DF53}
 		{4BD98FBF-FB98-4172-B352-BB7BF8761FCB} = {D3A6DF01-017E-4088-936C-B3791F41DF53}
 		{9C76E136-1D79-408C-A17F-FD63632B00A9} = {D3A6DF01-017E-4088-936C-B3791F41DF53}
+		{1FF58B65-6C83-4F0C-909A-6606B4C754B8} = {D3A6DF01-017E-4088-936C-B3791F41DF53}
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{54D9D850-1CFC-485E-97FE-87F41C220523}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
@@ -200,5 +203,9 @@ Global
 		{9C76E136-1D79-408C-A17F-FD63632B00A9}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9C76E136-1D79-408C-A17F-FD63632B00A9}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{9C76E136-1D79-408C-A17F-FD63632B00A9}.Release|Any CPU.Build.0 = Release|Any CPU
+		{1FF58B65-6C83-4F0C-909A-6606B4C754B8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{1FF58B65-6C83-4F0C-909A-6606B4C754B8}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{1FF58B65-6C83-4F0C-909A-6606B4C754B8}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{1FF58B65-6C83-4F0C-909A-6606B4C754B8}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal
diff --git a/....CacheProviders.Redis/Cnblogs.Architecture.Ddd.Infrastructure.CacheProviders.Redis.csproj b/....CacheProviders.Redis/Cnblogs.Architecture.Ddd.Infrastructure.CacheProviders.Redis.csproj
@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+      <Description>
+        Provides remote cache provider that implemented with Redis
+      </Description>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\Cnblogs.Architecture.Ddd.Cqrs.DependencyInjection\Cnblogs.Architecture.Ddd.Cqrs.DependencyInjection.csproj" />
+      <ProjectReference Include="..\Cnblogs.Architecture.Ddd.Infrastructure.Abstractions\Cnblogs.Architecture.Ddd.Infrastructure.Abstractions.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <PackageReference Include="StackExchange.Redis" Version="2.7.33" />
+    </ItemGroup>
+
+</Project>
diff --git a/src/Cnblogs.Architecture.Ddd.Infrastructure.CacheProviders.Redis/Injectors.cs b/src/Cnblogs.Architecture.Ddd.Infrastructure.CacheProviders.Redis/Injectors.cs
@@ -0,0 +1,80 @@
+using Cnblogs.Architecture.Ddd.Cqrs.Abstractions;
+using Cnblogs.Architecture.Ddd.Cqrs.DependencyInjection;
+using Cnblogs.Architecture.Ddd.Infrastructure.CacheProviders.Redis;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Options;
+using StackExchange.Redis;
+
+// ReSharper disable once CheckNamespace
+namespace Microsoft.Extensions.DependencyInjection;
+
+/// <summary>
+/// Injectors for redis cache provider.
+/// </summary>
+public static class Injectors
+{
+    /// <summary>
+    /// Add redis cache as remote cache.
+    /// </summary>
+    /// <param name="injector">The injector.</param>
+    /// <param name="configuration">The root configuration.</param>
+    /// <param name="sectionName">The configuration section name for redis, defaults to Redis.</param>
+    /// <param name="configure">The optional configuration.</param>
+    /// <returns></returns>
+    public static CqrsInjector AddRedisCache(
+        this CqrsInjector injector,
+        IConfiguration configuration,
+        string sectionName = "Redis",
+        Action<CacheableRequestOptions>? configure = null)
+    {
+        return AddRedisCache(injector, configuration.GetSection(sectionName), configure);
+    }
+
+    /// <summary>
+    /// Add redis cache as remote cache.
+    /// </summary>
+    /// <param name="injector">The injector.</param>
+    /// <param name="section">The configuration section for redis.</param>
+    /// <param name="configure">The optional configuration.</param>
+    /// <returns></returns>
+    public static CqrsInjector AddRedisCache(
+        this CqrsInjector injector,
+        IConfigurationSection section,
+        Action<CacheableRequestOptions>? configure = null)
+    {
+        injector.Services.Configure<RedisOptions>(section);
+        return AddRedisCache(injector, configure);
+    }
+
+    /// <summary>
+    /// Add redis cache as remote cache.
+    /// </summary>
+    /// <param name="injector">The injector.</param>
+    /// <param name="connectionString">The connection string.</param>
+    /// <param name="redisConfigure">Optional configuration for redis options.</param>
+    /// <param name="configure">The configure for cacheable request options.</param>
+    /// <returns></returns>
+    public static CqrsInjector AddRedisCache(
+        this CqrsInjector injector,
+        string connectionString,
+        Action<RedisOptions>? redisConfigure = null,
+        Action<CacheableRequestOptions>? configure = null)
+    {
+        var options = ConfigurationOptions.Parse(connectionString, true);
+        injector.Services.Configure<RedisOptions>(o =>
+        {
+            o.Configure = options;
+            redisConfigure?.Invoke(o);
+        });
+        return AddRedisCache(injector, configure);
+    }
+
+    private static CqrsInjector AddRedisCache(
+        this CqrsInjector injector,
+        Action<CacheableRequestOptions>? configure = null)
+    {
+        injector.Services.AddSingleton(
+            sp => ConnectionMultiplexer.Connect(sp.GetRequiredService<IOptions<RedisOptions>>().Value.Configure));
+        return injector.AddRemoteQueryCache<RedisCacheProvider>(configure);
+    }
+}
diff --git a/src/Cnblogs.Architecture.Ddd.Infrastructure.CacheProviders.Redis/RedisCacheProvider.cs b/src/Cnblogs.Architecture.Ddd.Infrastructure.CacheProviders.Redis/RedisCacheProvider.cs
@@ -0,0 +1,84 @@
+using System.Text.Json;
+using Cnblogs.Architecture.Ddd.Domain.Abstractions;
+using Cnblogs.Architecture.Ddd.Infrastructure.Abstractions;
+using Microsoft.Extensions.Options;
+using StackExchange.Redis;
+
+namespace Cnblogs.Architecture.Ddd.Infrastructure.CacheProviders.Redis;
+
+/// <summary>
+/// Remote cache provider implemented with Redis.
+/// </summary>
+public class RedisCacheProvider
+    : IRemoteCacheProvider
+{
+    private readonly RedisOptions _options;
+    private readonly IDatabaseAsync _database;
+    private readonly IDateTimeProvider _dateTimeProvider;
+
+    /// <summary>
+    /// Remote cache provider implemented with Redis.
+    /// </summary>
+    /// <param name="multiplexer">The underlying multiplexer.</param>
+    /// <param name="options">The options for this provider.</param>
+    /// <param name="dateTimeProvider">The datetime provider.</param>
+    public RedisCacheProvider(
+        ConnectionMultiplexer multiplexer,
+        IOptions<RedisOptions> options,
+        IDateTimeProvider dateTimeProvider)
+    {
+        _dateTimeProvider = dateTimeProvider;
+        _options = options.Value;
+        _database = multiplexer.GetDatabase(_options.Database);
+    }
+
+    /// <inheritdoc />
+    public Task<bool> AddAsync<TResult>(string cacheKey, TResult value)
+    {
+        return _database.StringSetAsync(GetCacheKey(cacheKey), Serialize(value));
+    }
+
+    /// <inheritdoc />
+    public Task<bool> AddAsync<TResult>(string cacheKey, TimeSpan expires, TResult value)
+    {
+        return _database.StringSetAsync(GetCacheKey(cacheKey), Serialize(value), expires);
+    }
+
+    /// <inheritdoc />
+    public async Task<CacheEntry<TResult>?> GetAsync<TResult>(string cacheKey)
+    {
+        var json = await _database.StringGetAsync(GetCacheKey(cacheKey));
+        if (json.IsNullOrEmpty)
+        {
+            return null;
+        }
+
+        return DeSerialize<TResult>(json!);
+    }
+
+    /// <inheritdoc />
+    public Task<bool> RemoveAsync(string cacheKey)
+    {
+        return _database.KeyDeleteAsync(GetCacheKey(cacheKey));
+    }
+
+    /// <inheritdoc />
+    public Task<bool> UpdateAsync<TResult>(string cacheKey, TResult value)
+    {
+        return AddAsync(cacheKey, value);
+    }
+
+    /// <inheritdoc />
+    public Task<bool> UpdateAsync<TResult>(string cacheKey, TResult value, TimeSpan expires)
+    {
+        return AddAsync(cacheKey, expires, value);
+    }
+
+    private string GetCacheKey(string key) => $"{_options.Prefix}{key}";
+
+    private string Serialize<TResult>(TResult result)
+        => JsonSerializer.Serialize(new CacheEntry<TResult>(result, _dateTimeProvider.UnixSeconds()));
+
+    private static CacheEntry<TResult>? DeSerialize<TResult>(string json)
+        => JsonSerializer.Deserialize<CacheEntry<TResult>>(json);
+}
diff --git a/src/Cnblogs.Architecture.Ddd.Infrastructure.CacheProviders.Redis/RedisOptions.cs b/src/Cnblogs.Architecture.Ddd.Infrastructure.CacheProviders.Redis/RedisOptions.cs
@@ -0,0 +1,24 @@
+using StackExchange.Redis;
+
+namespace Cnblogs.Architecture.Ddd.Infrastructure.CacheProviders.Redis;
+
+/// <summary>
+/// Options for redis connection.
+/// </summary>
+public class RedisOptions
+{
+    /// <summary>
+    /// Prefix for all redis keys.
+    /// </summary>
+    public string Prefix { get; set; } = "cache_";
+
+    /// <summary>
+    /// The number of database to use.
+    /// </summary>
+    public int Database { get; set; } = -1;
+
+    /// <summary>
+    /// The redis configuration, https://stackexchange.github.io/StackExchange.Redis/Configuration
+    /// </summary>
+    public ConfigurationOptions Configure { get; set; } = new();
+}