168 lines
5.1 KiB
C#
168 lines
5.1 KiB
C#
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 ASC.Common.Utils;
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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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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 void Register(this ContainerBuilder builder, IConfiguration configuration, bool loadproducts = true, bool loadconsumers = true, params string[] intern)
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{
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var modules = new List<(bool, string)>
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{
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(true, "autofac.json")
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};
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if (loadproducts)
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{
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modules.Add((true, "autofac.products.json"));
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}
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if (loadconsumers)
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{
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modules.Add((true, "autofac.consumers.json"));
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}
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if (intern != null)
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{
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modules.AddRange(intern.Select(r => (false, r)));
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}
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foreach (var p in modules)
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{
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var config = new ConfigurationBuilder();
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if (p.Item1)
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{
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config.SetBasePath(configuration["pathToConf"]);
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}
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config.AddJsonFile(p.Item2);
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var root = config.Build();
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var module = new ConfigurationModule(root);
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builder.RegisterModule(module);
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}
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return;
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}
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public static List<string> FindAndLoad(IConfiguration configuration, string currentDir, string section = "autofac.products.json")
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{
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var config = new ConfigurationBuilder();
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config.SetBasePath(configuration["pathToConf"]);
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config.AddJsonFile(section);
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var root = config.Build();
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var sectionSettings = root.GetSection("components");
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if (sectionSettings == null)
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{
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return new List<string>();
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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 (!Path.IsPathRooted(folder))
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{
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if (currentDir.EndsWith(CrossPlatform.PathCombine(Path.GetFileName(folder), Assembly.GetEntryAssembly().GetName().Name, subfolder)))
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{
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productsDir = Path.GetFullPath(CrossPlatform.PathCombine("..", ".."));
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}
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else
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{
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productsDir = Path.GetFullPath(CrossPlatform.PathCombine(currentDir, folder));
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}
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}
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else
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{
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productsDir = folder;
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}
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var cs = new List<AutofacComponent>();
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sectionSettings.Bind(cs);
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var types = new List<string>();
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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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LoadAssembly(component.Type);
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types.Add(component.Type);
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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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return types;
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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 path = GetFullPath(dll);
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if (!string.IsNullOrEmpty(path))
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{
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AssemblyLoadContext.Default.Resolving += new Resolver(path).Resolving;
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}
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}
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string GetFullPath(string n)
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{
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var productPath = CrossPlatform.PathCombine(productsDir, n, subfolder);
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return GetPath(CrossPlatform.PathCombine(productPath, "bin"), n, SearchOption.AllDirectories) ?? GetPath(productPath, n, SearchOption.TopDirectoryOnly);
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}
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static 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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class Resolver
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{
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private string ResolvePath { get; set; }
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public Resolver(string assemblyPath)
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{
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ResolvePath = assemblyPath;
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}
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public Assembly Resolving(AssemblyLoadContext context, AssemblyName assemblyName)
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{
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var path = CrossPlatform.PathCombine(Path.GetDirectoryName(ResolvePath), $"{assemblyName.Name}.dll");
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if (!File.Exists(path)) return null;
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return context.LoadFromAssemblyPath(path);
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}
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}
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}
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