/// <summary>
/// 直接获取选项配置
/// <para>该方式未通过依赖注入实现，无法使用热更新</para>
/// <para></para>
/// </summary>
/// <typeparam name="TOptions"></typeparam>
/// <param name="configuation"></param>
/// <param name="key"></param>
/// <returns></returns>
public static TOptions GetDefultOptions <TOptions>(this IConfiguration configuation, string key = null)
where TOptions : IConfigurableOptions, new()
{
var optionsType = typeof(TOptions);
var optionsSettings = optionsType.GetCustomAttribute <OptionsSettingsAttribute>(false);
// 获取键名
var jsonKey = JsonKey.GetOptionsJsonKey(optionsSettings, optionsType);
return(configuation.GetSection(jsonKey).Get <TOptions>());
}
/// <summary>
/// 添加选项配置
/// </summary>
/// <typeparam name="TOptions">选项类型</typeparam>
/// <param name="services">服务集合</param>
/// <param name="key"></param>
/// <returns>服务集合</returns>
public static IServiceCollection AddConfigurableOptions <TOptions>(this IServiceCollection services, string key = null)
where TOptions : class, IConfigurableOptions
{
var optionsType = typeof(TOptions);
var optionsSettings = optionsType.GetCustomAttribute <OptionsSettingsAttribute>(false);
// 获取键名
var jsonKey = JsonKey.GetOptionsJsonKey(optionsSettings, optionsType);
// 配置选项（含验证信息）
var configurationRoot = App.Configuration;
if (configurationRoot == null)
{
throw new QingShanException("您需要在服务中添加`services.AddConfigurable(Configuration);`");
}
var optionsConfiguration = configurationRoot.GetSection(key ?? jsonKey);
services.Configure <TOptions>(optionsConfiguration);
// 配置复杂验证后后期配置
var validateInterface = optionsType.GetInterfaces()
.FirstOrDefault(u => u.IsGenericType && typeof(IConfigurableOptions).IsAssignableFrom(u.GetGenericTypeDefinition()));
if (validateInterface != null)
{
var genericArguments = validateInterface.GenericTypeArguments;
// 配置复杂验证
if (genericArguments.Length > 1)
{
services.TryAddEnumerable(ServiceDescriptor.Singleton(typeof(IValidateOptions <TOptions>), genericArguments.Last()));
}
// 配置后期配置
var postConfigureMethod = optionsType.GetMethod(nameof(IConfigurableOptions <TOptions> .PostConfigure));
if (postConfigureMethod != null)
{
if (optionsSettings?.PostConfigureAll != true)
{
services.PostConfigure <TOptions>(options => postConfigureMethod.Invoke(options, new object[] { options, optionsConfiguration }));
}
else
{
services.PostConfigureAll <TOptions>(options => postConfigureMethod.Invoke(options, new object[] { options, optionsConfiguration }));
}
}
}
return(services);
}
