EasyMES/WaterCloud.Code/Timer/BackgroundServicesHelper.cs
2022-10-20 17:12:54 +08:00

66 lines
2.3 KiB
C#

using System;
using System.Collections.Generic;
using System.Reflection;
using System.Text;
using System.Linq;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.DependencyInjection;
namespace WaterCloud.Code
{
/// <summary>
/// 已废除
/// </summary>
public static class BackgroundServicesHelper
{
/// <summary>
/// 反射取得所有的业务逻辑类
/// </summary>
private static Type[] GetAllChildClass(Type baseType)
{
var types = AppDomain.CurrentDomain.GetAssemblies()
//取得实现了某个接口的类
//.SelectMany(a => a.GetTypes().Where(t => t.GetInterfaces().Contains(typeof(ISecurity)))) .ToArray();
//取得继承了某个类的所有子类
.SelectMany(a => a.GetTypes().Where(t => t.BaseType == baseType))
.ToArray();
return types;
}
public static Type[] GetAllBackgroundService()
{
return GetAllChildClass(typeof(BackgroundService));
}
/// <summary>
/// 自动增加后台任务.所有继承自BackgroundService的类都会自动运行
/// </summary>
/// <param name="services"></param>
/// <returns></returns>
public static IServiceCollection AddBackgroundServices(this IServiceCollection services)
{
//services.AddHostedService<TimedService>(); //asp.net core 应该是这个.
//或者 单为方便循环自动创建, 所以改成使用AddTransient 也一样可以使用.
//services.AddTransient<IHostedService, TimedService>();
//services.AddTransient(typeof(Microsoft.Extensions.Hosting.IHostedService),backtype);
//var backtypes = BackgroundServicesHelper.GetAllBackgroundService();
//foreach (var backtype in backtypes)
//{
// services.AddTransient(typeof(Microsoft.Extensions.Hosting.IHostedService),backtype);
//}
var backtypes = GetAllBackgroundService();
foreach (var backtype in backtypes)
{
services.AddTransient(typeof(Microsoft.Extensions.Hosting.IHostedService), backtype);
}
return services;
}
}
}