src/Library/NetPro.Startup/NetProEngine.cs

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using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.DependencyInjection;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;

namespace System.NetPro
{
    /// <summary>
    /// IEngine接口实现
    /// </summary>
    public class NetProEngine : IEngine
    {
        #region Fields

        private ITypeFinder _typeFinder;

        #endregion

        #region Properties

        /// <summary>
        /// Gets or sets service provider
        /// </summary>
        private IServiceProvider _serviceProvider { get; set; }

        #endregion

        #region Utilities

        /// <summary>
        /// Get IServiceProvider
        /// </summary>
        /// <returns>IServiceProvider</returns>
        protected IServiceProvider GetServiceProvider()
        {
            if (ServiceProvider == null)
                return null;
            var accessor = ServiceProvider?.GetService<IHttpContextAccessor>();
            return accessor?.HttpContext?.RequestServices ?? ServiceProvider;
        }

        ///// <summary>
        ///// Run startup tasks
        ///// </summary>
        ///// <param name="typeFinder">Type finder</param>
        //protected virtual void RunStartupTasks(ITypeFinder typeFinder)
        //{
        //    //find startup tasks provided by other assemblies
        //    var startupTasks = typeFinder.FindClassesOfType<IStartupTask>();

        //    //create and sort instances of startup tasks
        //    //we startup this interface even for not installed plugins. 
        //    //otherwise, DbContext initializers won't run and a plugin installation won't work
        //    var instances = startupTasks
        //        .Select(startupTask => (IStartupTask)Activator.CreateInstance(startupTask))
        //        .OrderBy(startupTask => startupTask.Order);

        //    //execute tasks