110 lines
3.8 KiB
C#
110 lines
3.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Runtime.Loader;
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using Autofac;
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using Autofac.Configuration;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.DependencyInjection.Extensions;
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namespace ASC.Common.DependencyInjection
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{
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internal class AutofacComponent
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{
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public string Type { get; set; }
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public IEnumerable<AutofacService> Services { get; set; }
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}
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internal class AutofacService
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{
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public string Type { get; set; }
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}
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public static class AutofacExtension
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{
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public static IContainer AddAutofac(this IServiceCollection services, IConfiguration configuration, string currentDir)
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{
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var folder = configuration["core:products:folder"];
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var subfolder = configuration["core:products:subfolder"];
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string productsDir;
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if (currentDir.EndsWith(Path.Combine(Path.GetFileName(folder), Assembly.GetCallingAssembly().GetName().Name, subfolder)))
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{
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productsDir = Path.GetFullPath(Path.Combine("..", ".."));
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}
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else
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{
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productsDir = Path.GetFullPath(Path.Combine(currentDir, folder));
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}
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var module = new ConfigurationModule(configuration);
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var builder = new ContainerBuilder();
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builder.RegisterModule(module);
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var sectionSettings = configuration.GetSection("products");
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if (sectionSettings != null)
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{
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var cs = new List<AutofacComponent>();
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sectionSettings.Bind(cs);
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foreach (var component in cs)
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{
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try
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{
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var types = new List<string>();
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LoadAssembly(component.Type);
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foreach (var s in component.Services)
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{
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//LoadAssembly(s.Type);
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types.Add(s.Type);
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}
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builder.RegisterType(Type.GetType(component.Type)).As(types.Select(r => Type.GetType(r)).ToArray());
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}
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catch (System.Exception)
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{
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//TODO
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}
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}
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}
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var container = builder.Build();
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services.TryAddSingleton(container);
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return container;
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void LoadAssembly(string type)
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{
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var dll = type.Substring(type.IndexOf(",") + 1).Trim();
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var productPath = Path.Combine(productsDir, dll, subfolder);
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var path = GetPath(Path.Combine(productPath, "bin"), dll, SearchOption.AllDirectories) ?? GetPath(productPath, dll, SearchOption.TopDirectoryOnly);
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if (!string.IsNullOrEmpty(path))
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{
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AssemblyLoadContext.Default.Resolving += Default_Resolving(path);
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Func<AssemblyLoadContext, AssemblyName, Assembly> Default_Resolving(string path)
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{
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return (c, n) =>
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{
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return c.LoadFromAssemblyPath(Path.Combine(Path.GetDirectoryName(path), $"{n.Name}.dll"));
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};
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}
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}
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}
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string GetPath(string dirPath, string dll, SearchOption searchOption)
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{
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if (!Directory.Exists(dirPath)) return null;
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return Directory.GetFiles(dirPath, $"{dll}.dll", searchOption).FirstOrDefault();
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}
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}
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}
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}
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