插件如何读取指定配置结点

先看效果

appsettings.json

{
  "Plugin1": {
    "Test1": "11111111"
  },
  "Plugin2": {
    "Test2": "22222222"
  }
}

为每个节点创建Option

    public class Service1Options
    {
        public string Test1 { get; set; }
    }
    public class Service2Options
    {
        public string Test2 { get; set; }
    }

插件,每个插件注入对应的Option

    public class Plugin1 : IPlugin
    {
        public Plugin1(IOptions<Service1Options> options)
        {
            Service1Options option = options.Value;//11111111
        }
    }
    public class Plugin2 : IPlugin
    {
        public Plugin2(IOptions<Service2Options> options)
        {
            Service2Options option = options.Value;//22222222
        }
    }

如何实现？

插件接口

    public interface IPlugin
    { }

插件节点获取器

    /// <summary>
    /// Plugin配置节点获取器
    /// </summary>
    /// <typeparam name="TPlugin"></typeparam>
    public interface IPluginConfigurationProvider<TPlugin>
    {
        public IConfiguration Configuration { get; }
    }
    public class PluginConfigurationProvider<TPlugin> : IPluginConfigurationProvider<TPlugin>
        where TPlugin : IPlugin
    {
        public IConfiguration Configuration { get; set; }
        public PluginConfigurationProvider(IConfiguration configuration)
        {
            string sectionName = typeof(TPlugin).Name;
            var section = configuration.GetSection(sectionName);
            if (section != null)
            {
                Configuration = section;
            }
        }
    }

从配置中获取插件设置

    /// <summary>
    /// 从配置中获取插件设置
    /// </summary>
    /// <typeparam name="TPlugin">插件类型</typeparam>
    /// <typeparam name="TPluginOptions">插件设置</typeparam>
    public class PluginConfigrationOptions<TPlugin, TPluginOptions> : ConfigureFromConfigurationOptions<TPluginOptions>
    where TPluginOptions : class, new()
    {
        public PluginConfigrationOptions(IPluginConfigurationProvider<TPlugin> provider) : base(provider.Configuration)
        {
        }
    }

Startup

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddControllersWithViews();
            services.AddTransient<IConfigureOptions<Service1Options>, PluginConfigrationOptions<Plugin1, Service1Options>>();
            services.AddTransient<IConfigureOptions<Service2Options>, PluginConfigrationOptions<Plugin2, Service2Options>>();
            services.AddTransient(typeof(IPluginConfigurationProvider<>), typeof(PluginConfigurationProvider<>));
            services.AddTransient<Plugin1>();
            services.AddTransient<Plugin2>();
            var provider = services.BuildServiceProvider();
            var service1 = provider.GetRequiredService<Plugin1>();//1111111
            var service2 = provider.GetRequiredService<Plugin2>();//2222222
        }