[2] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[11576] | 3 | * Copyright (C) 2002-2014 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[2] | 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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[4068] | 23 | using System.CodeDom;
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| 24 | using System.CodeDom.Compiler;
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[2] | 25 | using System.Collections.Generic;
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| 26 | using System.IO;
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[694] | 27 | using System.Linq;
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[2] | 28 | using System.Reflection;
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[4068] | 29 | using System.Text;
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[2] | 30 | using System.Text.RegularExpressions;
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[4068] | 31 | using HeuristicLab.Collections;
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[3376] | 32 | using HeuristicLab.Common;
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[5042] | 33 | using HeuristicLab.Common.Resources;
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[2] | 34 | using HeuristicLab.Core;
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[4068] | 35 | using HeuristicLab.Persistence.Auxiliary;
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| 36 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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[2799] | 37 | using HeuristicLab.PluginInfrastructure;
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[4068] | 38 | using Microsoft.CSharp;
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[2] | 39 |
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| 40 | namespace HeuristicLab.Operators.Programmable {
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| 41 |
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[2877] | 42 | [Item("ProgrammableOperator", "An operator that can be programmed for arbitrary needs.")]
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[3903] | 43 | [StorableClass]
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[4419] | 44 | public class ProgrammableOperator : Operator, IParameterizedNamedItem, IStorableContent {
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[1872] | 45 |
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[2799] | 46 | #region Fields & Properties
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| 47 |
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[4419] | 48 | public string Filename { get; set; }
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| 49 |
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[3014] | 50 | public new ParameterCollection Parameters {
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[3008] | 51 | get { return base.Parameters; }
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| 52 | }
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| 53 |
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[7201] | 54 | public static new System.Drawing.Image StaticItemImage { get { return VSImageLibrary.Script; } }
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[5042] | 55 |
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[2799] | 56 | private MethodInfo executeMethod;
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| 57 | public CompilerErrorCollection CompileErrors { get; private set; }
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| 58 | public string CompilationUnitCode { get; private set; }
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[2897] | 59 |
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[1872] | 60 | [Storable]
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[2799] | 61 | private string code;
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[2] | 62 | public string Code {
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[2799] | 63 | get { return code; }
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[2] | 64 | set {
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[2799] | 65 | if (value != code) {
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| 66 | code = value;
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[2] | 67 | executeMethod = null;
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| 68 | OnCodeChanged();
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| 69 | }
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| 70 | }
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| 71 | }
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| 72 |
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[1211] | 73 | private object syncRoot = new object();
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| 74 |
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[2799] | 75 | private static object initLock = new object();
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| 76 | private static Dictionary<string, List<Assembly>> defaultPluginDict;
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| 77 | private static Dictionary<Assembly, bool> defaultAssemblyDict;
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| 78 |
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| 79 | public readonly Dictionary<string, List<Assembly>> Plugins;
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| 80 | protected Dictionary<Assembly, bool> Assemblies;
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| 81 |
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[4068] | 82 | [Storable(Name = "SelectedAssemblies")]
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[3903] | 83 | private List<string> _selectedAssemblyNames_persistence {
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[2897] | 84 | get {
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[4068] | 85 | return Assemblies.Where(a => a.Value).Select(a => a.Key.FullName).ToList();
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[2799] | 86 | }
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| 87 | set {
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[5781] | 88 | var selectedAssemblyNames = new HashSet<string>(value.Select(n => new AssemblyName(n).Name));
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[2799] | 89 | foreach (var a in Assemblies.Keys.ToList()) {
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[5781] | 90 | Assemblies[a] = selectedAssemblyNames.Contains(new AssemblyName(a.FullName).Name);
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[2897] | 91 | }
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[2799] | 92 | }
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[2] | 93 | }
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| 94 |
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[2799] | 95 | public IEnumerable<Assembly> AvailableAssemblies {
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| 96 | get { return Assemblies.Keys; }
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| 97 | }
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| 98 |
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| 99 | public IEnumerable<Assembly> SelectedAssemblies {
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| 100 | get { return Assemblies.Where(kvp => kvp.Value).Select(kvp => kvp.Key); }
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| 101 | }
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| 102 |
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| 103 | [Storable]
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| 104 | private HashSet<string> namespaces;
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| 105 | public IEnumerable<string> Namespaces {
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| 106 | get { return namespaces; }
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| 107 | }
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| 108 |
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[2877] | 109 | public override bool CanChangeDescription {
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[3024] | 110 | get { return true; }
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| 111 | }
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[2877] | 112 |
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[2799] | 113 | #endregion
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| 114 |
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| 115 | #region Extended Accessors
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| 116 |
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| 117 | public void SelectAssembly(Assembly a) {
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[3903] | 118 | if (a != null && Assemblies.ContainsKey(a) && !Assemblies[a]) {
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[2799] | 119 | Assemblies[a] = true;
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[3903] | 120 | }
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[2799] | 121 | }
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| 122 |
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| 123 | public void UnselectAssembly(Assembly a) {
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[3903] | 124 | if (a != null && Assemblies.ContainsKey(a) && Assemblies[a]) {
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[2799] | 125 | Assemblies[a] = false;
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[3903] | 126 | }
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[2799] | 127 | }
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| 128 |
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| 129 | public void SelectNamespace(string ns) {
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| 130 | namespaces.Add(ns);
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[3903] | 131 | OnSignatureChanged();
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[2799] | 132 | }
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| 133 |
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| 134 | public void UnselectNamespace(string ns) {
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| 135 | namespaces.Remove(ns);
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[3903] | 136 | OnSignatureChanged();
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[2799] | 137 | }
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| 138 |
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| 139 | public IEnumerable<string> GetAllNamespaces(bool selectedAssembliesOnly) {
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| 140 | var namespaces = new HashSet<string>();
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| 141 | foreach (var a in Assemblies) {
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| 142 | if (!selectedAssembliesOnly || a.Value) {
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| 143 | foreach (var t in a.Key.GetTypes()) {
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| 144 | if (t.IsPublic) {
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| 145 | foreach (string ns in GetNamespaceHierachy(t.Namespace)) {
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| 146 | namespaces.Add(ns);
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| 147 | }
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| 148 | }
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| 149 | }
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| 150 | }
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[2] | 151 | }
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[2799] | 152 | return namespaces;
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[2] | 153 | }
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| 154 |
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[2799] | 155 | private IEnumerable<string> GetNamespaceHierachy(string ns) {
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[5011] | 156 | if (ns != null) {
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| 157 | for (int i = ns.Length; i != -1; i = ns.LastIndexOf('.', i - 1)) {
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| 158 | yield return ns.Substring(0, i);
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| 159 | }
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[2799] | 160 | }
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| 161 | }
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[2] | 162 |
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[2799] | 163 | #endregion
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[2] | 164 |
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[2799] | 165 | #region Construction & Initialization
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[4762] | 166 |
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[4722] | 167 | [StorableConstructor]
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[4762] | 168 | protected ProgrammableOperator(bool deserializing)
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| 169 | : base(deserializing) {
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| 170 | ProgrammableOperator.StaticInitialize();
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| 171 | Assemblies = defaultAssemblyDict.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
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| 172 | Plugins = defaultPluginDict.ToDictionary(kvp => kvp.Key, kvp => kvp.Value.ToList());
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[4722] | 173 | }
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[2] | 174 |
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[4722] | 175 | protected ProgrammableOperator(ProgrammableOperator original, Cloner cloner)
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| 176 | : base(original, cloner) {
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| 177 | code = original.Code;
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| 178 | executeMethod = original.executeMethod;
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| 179 | Assemblies = original.Assemblies.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
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[4762] | 180 | Plugins = original.Plugins.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
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| 181 | namespaces = new HashSet<string>(original.namespaces);
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[4722] | 182 | CompilationUnitCode = original.CompilationUnitCode;
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[4764] | 183 | if (original.CompileErrors != null)
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| 184 | CompileErrors = new CompilerErrorCollection(original.CompileErrors);
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[4722] | 185 | RegisterEvents();
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| 186 | }
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| 187 |
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[2897] | 188 | public ProgrammableOperator() {
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| 189 | code = "";
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[2799] | 190 | executeMethod = null;
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| 191 | ProgrammableOperator.StaticInitialize();
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[3903] | 192 | Assemblies = defaultAssemblyDict.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
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| 193 | Plugins = defaultPluginDict.ToDictionary(kvp => kvp.Key, kvp => kvp.Value.ToList());
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[3014] | 194 | namespaces = new HashSet<string>(DiscoverNamespaces());
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| 195 | RegisterEvents();
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[2799] | 196 | }
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| 197 |
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[4762] | 198 | [StorableHook(HookType.AfterDeserialization)]
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| 199 | private void AfterDeserialization() {
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[4838] | 200 | // ensure default namespaces and assemblies are present if deserializing old operators
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| 201 | namespaces.Add("HeuristicLab.Operators.Programmable");
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| 202 | Assemblies[typeof(HeuristicLab.Operators.Operator).Assembly] = true;
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| 203 | Assemblies[typeof(HeuristicLab.Operators.Programmable.ProgrammableOperator).Assembly] = true;
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[5173] | 204 | Assemblies[typeof(System.Threading.Barrier).Assembly] = true; // ensure new System assembly is selected (4.0.0.0)
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[4762] | 205 | RegisterEvents();
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| 206 | }
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[4722] | 207 |
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[4762] | 208 | public override IDeepCloneable Clone(Cloner cloner) {
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| 209 | return new ProgrammableOperator(this, cloner);
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| 210 | }
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| 211 |
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[3014] | 212 | private void RegisterEvents() {
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[3903] | 213 | Parameters.ItemsAdded += Parameters_Changed;
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| 214 | Parameters.ItemsRemoved += Parameters_Changed;
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| 215 | Parameters.ItemsReplaced += Parameters_Changed;
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| 216 | Parameters.CollectionReset += Parameters_Changed;
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[3014] | 217 | }
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| 218 |
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[3903] | 219 | private void Parameters_Changed(object sender, CollectionItemsChangedEventArgs<IParameter> args) {
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| 220 | OnSignatureChanged();
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[2897] | 221 | }
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| 222 |
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[3903] | 223 | protected void OnSignatureChanged() {
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[4828] | 224 | executeMethod = null;
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[3903] | 225 | EventHandler handler = SignatureChanged;
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[4722] | 226 | if (handler != null) handler(this, EventArgs.Empty);
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[3903] | 227 | }
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| 228 |
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[2799] | 229 | private static void StaticInitialize() {
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| 230 | lock (initLock) {
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[3903] | 231 | if (defaultPluginDict != null && defaultAssemblyDict != null)
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| 232 | return;
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[2799] | 233 | defaultAssemblyDict = DiscoverAssemblies();
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| 234 | defaultPluginDict = GroupAssemblies(defaultAssemblyDict.Keys);
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| 235 | }
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| 236 | }
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| 237 |
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| 238 | private static Dictionary<string, List<Assembly>> GroupAssemblies(IEnumerable<Assembly> assemblies) {
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| 239 | var plugins = new Dictionary<string, List<Assembly>>();
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| 240 | var locationTable = assemblies.ToDictionary(a => a.Location, a => a);
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[3234] | 241 |
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[3303] | 242 | foreach (var plugin in ApplicationManager.Manager.Plugins) {
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| 243 | var aList = new List<Assembly>();
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| 244 | foreach (var aName in from file in plugin.Files
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| 245 | where file.Type == PluginFileType.Assembly
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| 246 | select file.Name) {
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| 247 | Assembly a;
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| 248 | locationTable.TryGetValue(aName, out a);
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| 249 | if (a != null) {
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| 250 | aList.Add(a);
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| 251 | locationTable.Remove(aName);
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[2799] | 252 | }
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| 253 | }
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[3303] | 254 | plugins[plugin.Name] = aList;
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[2799] | 255 | }
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[3234] | 256 |
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[2799] | 257 | plugins["other"] = locationTable.Values.ToList();
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| 258 | return plugins;
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| 259 | }
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| 260 |
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[2897] | 261 | protected static List<Assembly> defaultAssemblies = new List<Assembly>() {
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[5216] | 262 | // mscorlib automatically included (would cause duplicate)
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| 263 | typeof(System.ComponentModel.INotifyPropertyChanged).Assembly, // System.dll
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| 264 | typeof(System.Linq.Enumerable).Assembly, // System.Core.dll
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| 265 | typeof(System.Data.Linq.DataContext).Assembly, // System.Data.Linq.dll
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[3454] | 266 | typeof(HeuristicLab.Common.IDeepCloneable).Assembly,
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[2897] | 267 | typeof(HeuristicLab.Core.Item).Assembly,
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[3048] | 268 | typeof(HeuristicLab.Data.IntValue).Assembly,
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[3903] | 269 | typeof(HeuristicLab.Parameters.ValueParameter<IItem>).Assembly,
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| 270 | typeof(HeuristicLab.Collections.ObservableList<IItem>).Assembly,
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[4838] | 271 | typeof(HeuristicLab.Operators.Operator).Assembly,
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| 272 | typeof(HeuristicLab.Operators.Programmable.ProgrammableOperator).Assembly,
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[2799] | 273 | };
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| 274 |
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| 275 | protected static Dictionary<Assembly, bool> DiscoverAssemblies() {
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| 276 | var assemblies = new Dictionary<Assembly, bool>();
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| 277 | foreach (var a in AppDomain.CurrentDomain.GetAssemblies()) {
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| 278 | try {
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| 279 | if (File.Exists(a.Location)) {
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| 280 | assemblies.Add(a, false);
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| 281 | }
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[7201] | 282 | }
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| 283 | catch (NotSupportedException) {
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[2799] | 284 | // NotSupportedException is thrown while accessing
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| 285 | // the Location property of the anonymously hosted
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| 286 | // dynamic methods assembly, which is related to
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| 287 | // LINQ queries
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| 288 | }
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| 289 | }
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| 290 | foreach (var a in defaultAssemblies) {
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| 291 | if (assemblies.ContainsKey(a)) {
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| 292 | assemblies[a] = true;
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| 293 | } else {
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| 294 | assemblies.Add(a, true);
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| 295 | }
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| 296 | }
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| 297 | return assemblies;
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| 298 | }
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| 299 |
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| 300 | protected static List<string> DiscoverNamespaces() {
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| 301 | return new List<string>() {
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[3903] | 302 | "HeuristicLab.Common",
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| 303 | "HeuristicLab.Core",
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| 304 | "HeuristicLab.Data",
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| 305 | "HeuristicLab.Parameters",
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[4838] | 306 | "HeuristicLab.Operators.Programmable",
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[2799] | 307 | "System",
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| 308 | "System.Collections.Generic",
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| 309 | "System.Text",
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| 310 | "System.Linq",
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| 311 | "System.Data.Linq",
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| 312 | };
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| 313 | }
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| 314 |
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| 315 | #endregion
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| 316 |
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| 317 | #region Compilation
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| 318 |
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| 319 | private static CSharpCodeProvider codeProvider =
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| 320 | new CSharpCodeProvider(
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| 321 | new Dictionary<string, string>() {
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[5406] | 322 | { "CompilerVersion", "v4.0" }, // support C# 4.0 syntax
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[2799] | 323 | });
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| 324 |
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| 325 | private CompilerResults DoCompile() {
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[2] | 326 | CompilerParameters parameters = new CompilerParameters();
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| 327 | parameters.GenerateExecutable = false;
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| 328 | parameters.GenerateInMemory = true;
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| 329 | parameters.IncludeDebugInformation = false;
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[2799] | 330 | parameters.ReferencedAssemblies.AddRange(SelectedAssemblies.Select(a => a.Location).ToArray());
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| 331 | var unit = CreateCompilationUnit();
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| 332 | var writer = new StringWriter();
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| 333 | codeProvider.GenerateCodeFromCompileUnit(
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| 334 | unit,
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| 335 | writer,
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| 336 | new CodeGeneratorOptions() {
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| 337 | BracingStyle = "C",
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| 338 | ElseOnClosing = true,
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| 339 | IndentString = " ",
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| 340 | });
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| 341 | CompilationUnitCode = writer.ToString();
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| 342 | return codeProvider.CompileAssemblyFromDom(parameters, unit);
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| 343 | }
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[2] | 344 |
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[2799] | 345 | public virtual void Compile() {
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| 346 | var results = DoCompile();
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[2] | 347 | executeMethod = null;
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[5042] | 348 | CompileErrors = results.Errors;
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[2] | 349 | if (results.Errors.HasErrors) {
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[2799] | 350 | StringBuilder sb = new StringBuilder();
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[2] | 351 | foreach (CompilerError error in results.Errors) {
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[2799] | 352 | sb.Append(error.Line).Append(':')
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| 353 | .Append(error.Column).Append(": ")
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| 354 | .AppendLine(error.ErrorText);
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[2] | 355 | }
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[2799] | 356 | throw new Exception(string.Format(
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| 357 | "Compilation of \"{0}\" failed:{1}{2}",
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| 358 | Name, Environment.NewLine,
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| 359 | sb.ToString()));
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[2] | 360 | } else {
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| 361 | Assembly assembly = results.CompiledAssembly;
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| 362 | Type[] types = assembly.GetTypes();
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| 363 | executeMethod = types[0].GetMethod("Execute");
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| 364 | }
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| 365 | }
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| 366 |
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[2799] | 367 | private CodeCompileUnit CreateCompilationUnit() {
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| 368 | CodeNamespace ns = new CodeNamespace("HeuristicLab.Operators.Programmable.CustomOperators");
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| 369 | ns.Types.Add(CreateType());
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| 370 | ns.Imports.AddRange(
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| 371 | GetSelectedAndValidNamespaces()
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| 372 | .Select(n => new CodeNamespaceImport(n))
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| 373 | .ToArray());
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| 374 | CodeCompileUnit unit = new CodeCompileUnit();
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| 375 | unit.Namespaces.Add(ns);
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| 376 | return unit;
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[2] | 377 | }
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| 378 |
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[2799] | 379 | public IEnumerable<string> GetSelectedAndValidNamespaces() {
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| 380 | var possibleNamespaces = new HashSet<string>(GetAllNamespaces(true));
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| 381 | foreach (var ns in Namespaces)
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| 382 | if (possibleNamespaces.Contains(ns))
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| 383 | yield return ns;
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| 384 | }
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| 385 |
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| 386 | public static readonly Regex SafeTypeNameCharRegex = new Regex("[_a-zA-Z0-9]+");
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| 387 | public static readonly Regex SafeTypeNameRegex = new Regex("[_a-zA-Z][_a-zA-Z0-9]*");
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| 388 |
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| 389 | public string CompiledTypeName {
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| 390 | get {
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| 391 | var sb = new StringBuilder();
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| 392 | foreach (string s in SafeTypeNameCharRegex.Matches(Name).Cast<Match>().Select(m => m.Value)) {
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| 393 | sb.Append(s);
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[1211] | 394 | }
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[2799] | 395 | return SafeTypeNameRegex.Match(sb.ToString()).Value;
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[116] | 396 | }
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[2799] | 397 | }
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[2] | 398 |
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[2799] | 399 | private CodeTypeDeclaration CreateType() {
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| 400 | CodeTypeDeclaration typeDecl = new CodeTypeDeclaration(CompiledTypeName) {
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| 401 | IsClass = true,
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| 402 | TypeAttributes = TypeAttributes.Public,
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| 403 | };
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| 404 | typeDecl.Members.Add(CreateMethod());
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| 405 | return typeDecl;
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| 406 | }
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| 407 |
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| 408 | public string Signature {
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| 409 | get {
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| 410 | var sb = new StringBuilder()
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[3903] | 411 | .Append("public static IOperation Execute(")
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[4838] | 412 | .Append(TypeNameParser.Parse(GetType().FullName).GetTypeNameInCode(namespaces))
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[3903] | 413 | .Append(" op, ")
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| 414 | .Append(TypeNameParser.Parse(typeof(IExecutionContext).FullName).GetTypeNameInCode(namespaces))
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| 415 | .Append(" context");
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[2799] | 416 | foreach (IParameter param in Parameters) {
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[3903] | 417 | sb.Append(String.Format(", {0} {1}",
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| 418 | TypeNameParser.Parse(param.GetType().FullName).GetTypeNameInCode(namespaces),
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| 419 | param.Name));
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[2897] | 420 | }
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[2799] | 421 | return sb.Append(")").ToString();
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[2] | 422 | }
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[2799] | 423 | }
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[2] | 424 |
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[2897] | 425 | public event EventHandler SignatureChanged;
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| 426 |
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[2799] | 427 | private static Regex lineSplitter = new Regex(@"\r\n|\r|\n");
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| 428 |
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| 429 | private CodeMemberMethod CreateMethod() {
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| 430 | CodeMemberMethod method = new CodeMemberMethod();
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| 431 | method.Name = "Execute";
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[2897] | 432 | method.ReturnType = new CodeTypeReference(typeof(IOperation));
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[2799] | 433 | method.Attributes = MemberAttributes.Public | MemberAttributes.Static;
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[4838] | 434 | method.Parameters.Add(new CodeParameterDeclarationExpression(GetType(), "op"));
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[2897] | 435 | method.Parameters.Add(new CodeParameterDeclarationExpression(typeof(IExecutionContext), "context"));
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[2799] | 436 | foreach (var param in Parameters)
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[3903] | 437 | method.Parameters.Add(new CodeParameterDeclarationExpression(param.GetType(), param.Name));
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[2799] | 438 | string[] codeLines = lineSplitter.Split(code);
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| 439 | for (int i = 0; i < codeLines.Length; i++) {
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| 440 | codeLines[i] = string.Format("#line {0} \"ProgrammableOperator\"{1}{2}", i + 1, "\r\n", codeLines[i]);
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| 441 | }
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[4838] | 442 | method.Statements.Add(new CodeSnippetStatement(string.Join("\r\n", codeLines) + MethodSuffix));
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[2799] | 443 | return method;
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[2] | 444 | }
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| 445 |
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[4838] | 446 | public virtual string MethodSuffix {
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| 447 | get { return "return null;"; }
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| 448 | }
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| 449 |
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[2799] | 450 | #endregion
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| 451 |
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| 452 | #region HeuristicLab interfaces
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[2877] | 453 |
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| 454 | public override IOperation Apply() {
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[2799] | 455 | lock (syncRoot) {
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| 456 | if (executeMethod == null) {
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| 457 | Compile();
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| 458 | }
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| 459 | }
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| 460 |
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[2897] | 461 | var parameters = new List<object>() { this, ExecutionContext };
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[3903] | 462 | parameters.AddRange(Parameters.Select(p => (object)p));
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[2877] | 463 | return (IOperation)executeMethod.Invoke(null, parameters.ToArray());
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[2] | 464 | }
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[2897] | 465 |
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[2] | 466 | public event EventHandler CodeChanged;
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| 467 | protected virtual void OnCodeChanged() {
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[4722] | 468 | EventHandler handler = CodeChanged;
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| 469 | if (handler != null) handler(this, EventArgs.Empty);
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[2] | 470 | }
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[2799] | 471 |
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| 472 | #endregion
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[2] | 473 | }
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| 474 | }
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