/// <summary>
/// 添加模块配置
/// </summary>
/// <param name="services"></param>
/// <param name="modules"></param>
/// <returns></returns>
public static IServiceCollection AddModuleOptions(this IServiceCollection services, IModuleCollection modules)
{
var collection = new ModuleOptionsCollection();
if (modules != null && modules.Any())
{
foreach (var module in modules)
{
var descriptor = GetDescriptor(services, module);
collection.Add(descriptor);
}
}
//注入变更事件
services.AddChangedEvent(collection);
//注入配置集合
services.AddSingleton <IModuleOptionsCollection>(collection);
//注入引擎
services.AddSingleton <IModuleOptionsEngine, ModuleOptionsEngine>();
//从存储加载数据
services.BuildServiceProvider().GetService <IModuleOptionsEngine>().LoadFromStorage(services);
return(services);
}
/// <summary>
/// 注入变更事件
/// </summary>
/// <param name="services"></param>
/// <param name="collection"></param>
private static void AddChangedEvent(this IServiceCollection services, ModuleOptionsCollection collection)
{
foreach (var descriptor in collection)
{
var changedEventTypes = descriptor.Module.AssemblyDescriptor.Infrastructure.GetTypes().Where(m => typeof(IModuleOptionsChangedEvent<>).IsImplementType(m)).ToList();
if (!changedEventTypes.Any())
continue;
foreach (var eventType in changedEventTypes)
{
//将变更事件保存下来，方便配置更改时从容器中查找
var optionType = eventType.GetInterfaces().First().GetGenericArguments()[0];
collection.First(m => m.OptionsType == optionType).ChangedEvents.Add(eventType);
services.AddSingleton(eventType);
}
}
}
