#region License Information /* HeuristicLab * Copyright (C) 2002-2019 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * HeuristicLab is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with HeuristicLab. If not, see . */ #endregion using System; using System.Collections.Concurrent; using System.Collections.Generic; using System.IO; using System.Linq; using System.Reflection; using System.Web.Http; using System.Web.Http.Controllers; namespace HeuristicLab.Services.WebApp { public class Plugin { public string Name { get; set; } public string Directory { get; set; } public string AssemblyName { get; set; } public string Exception { get; set; } public DateTime? LastReload { get; set; } private HttpConfiguration configuration; public HttpConfiguration Configuration { get { return configuration; } set { if (configuration != value) { configuration = value; ReloadControllers(); } } } private IDictionary controllers; public IDictionary Controllers { get { return controllers ?? (controllers = new ConcurrentDictionary()); } } public Plugin(string name, string directory, HttpConfiguration configuration) { Name = name; Directory = directory; Configuration = configuration; } public HttpControllerDescriptor GetController(string name) { HttpControllerDescriptor controller; Controllers.TryGetValue(name, out controller); return controller; } public void ReloadControllers() { AssemblyName = null; Exception = null; Controllers.Clear(); LastReload = DateTime.Now; if (configuration == null) return; try { string searchPattern = string.Format("HeuristicLab.Services.WebApp.{0}*.dll", Name); var assemblies = System.IO.Directory.GetFiles(Directory, searchPattern); if (!assemblies.Any()) return; var assemblyPath = assemblies.First(); AssemblyName = Path.GetFileName(assemblyPath); var assembly = Assembly.Load(File.ReadAllBytes(assemblyPath)); var assemblyTypes = assembly.GetTypes(); var apiControllers = assemblyTypes.Where(c => typeof(ApiController).IsAssignableFrom(c)).ToList(); foreach (var apiController in apiControllers) { var controllerName = apiController.Name.Remove(apiController.Name.Length - 10).ToLower(); Controllers.Add(controllerName, new HttpControllerDescriptor(configuration, controllerName, apiController)); } } catch (Exception e) { Exception = e.ToString(); Controllers.Clear(); } } } }