[12435] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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[12428] | 23 | using System.Collections.Concurrent;
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| 24 | using System.Collections.Generic;
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| 25 | using System.IO;
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| 26 | using System.Linq;
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| 27 | using System.Reflection;
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| 28 | using System.Web.Http;
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| 29 | using System.Web.Http.Controllers;
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| 30 |
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| 31 | namespace HeuristicLab.Services.WebApp {
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| 32 | public class Plugin {
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| 33 | public string Name { get; set; }
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| 34 | public string Directory { get; set; }
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| 35 | public string AssemblyName { get; set; }
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[12523] | 36 | public string Exception { get; set; }
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[12428] | 37 | public DateTime? LastReload { get; set; }
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| 38 |
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[12514] | 39 | private HttpConfiguration configuration;
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| 40 | public HttpConfiguration Configuration {
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| 41 | get { return configuration; }
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| 42 | set {
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| 43 | if (configuration != value) {
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| 44 | configuration = value;
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| 45 | ReloadControllers();
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| 46 | }
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| 47 | }
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| 48 | }
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| 49 |
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[12428] | 50 | private IDictionary<string, HttpControllerDescriptor> controllers;
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| 51 | public IDictionary<string, HttpControllerDescriptor> Controllers {
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| 52 | get { return controllers ?? (controllers = new ConcurrentDictionary<string, HttpControllerDescriptor>()); }
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| 53 | }
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| 54 |
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[12514] | 55 | public Plugin(string name, string directory, HttpConfiguration configuration) {
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| 56 | Name = name;
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| 57 | Directory = directory;
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| 58 | Configuration = configuration;
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[12428] | 59 | }
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| 60 |
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| 61 | public HttpControllerDescriptor GetController(string name) {
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| 62 | HttpControllerDescriptor controller;
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| 63 | Controllers.TryGetValue(name, out controller);
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| 64 | return controller;
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| 65 | }
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| 66 |
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| 67 | public void ReloadControllers() {
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| 68 | AssemblyName = null;
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[12523] | 69 | Exception = null;
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[12428] | 70 | Controllers.Clear();
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| 71 | LastReload = DateTime.Now;
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| 72 | if (configuration == null)
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| 73 | return;
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| 74 | try {
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| 75 | string searchPattern = string.Format("HeuristicLab.Services.WebApp.{0}*.dll", Name);
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| 76 | var assemblies = System.IO.Directory.GetFiles(Directory, searchPattern);
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| 77 | if (!assemblies.Any())
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| 78 | return;
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[12931] | 79 |
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[12428] | 80 | var assemblyPath = assemblies.First();
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[12523] | 81 | AssemblyName = Path.GetFileName(assemblyPath);
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[12428] | 82 | var assembly = Assembly.Load(File.ReadAllBytes(assemblyPath));
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| 83 | var assemblyTypes = assembly.GetTypes();
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| 84 | var apiControllers = assemblyTypes.Where(c => typeof(ApiController).IsAssignableFrom(c)).ToList();
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| 85 | foreach (var apiController in apiControllers) {
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| 86 | var controllerName = apiController.Name.Remove(apiController.Name.Length - 10).ToLower();
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| 87 | Controllers.Add(controllerName, new HttpControllerDescriptor(configuration, controllerName, apiController));
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| 88 | }
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| 89 | }
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[12523] | 90 | catch (Exception e) {
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| 91 | Exception = e.ToString();
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[12428] | 92 | Controllers.Clear();
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| 93 | }
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| 94 | }
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| 95 | }
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| 96 | } |
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