[3743] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[16453] | 3 | * Copyright (C) 2002-2019 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[3743] | 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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[1454] | 22 | using System;
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[8698] | 23 | using System.Collections.Generic;
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[1682] | 24 | using System.Reflection;
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[1823] | 25 | using HeuristicLab.Persistence.Core;
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[4068] | 26 | using HeuristicLab.Tracing;
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[1454] | 27 |
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[1823] | 28 | namespace HeuristicLab.Persistence.Auxiliary {
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[3004] | 29 | internal class TypeLoader {
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[8698] | 30 | #region Mono Compatibility
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[9014] | 31 | private static TypeName cachedMonoRuntimeType;
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| 32 | private static TypeName cachedWindowsRuntimeType;
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| 33 | private static TypeName cachedMonoObjectEqualityComparerType;
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| 34 | private static TypeName cachedWindowsObjectEqualityComparerType;
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[8698] | 35 |
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[9014] | 36 | private static bool MonoInstalled {
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| 37 | get { return Type.GetType("Mono.Runtime") != null; }
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| 38 | }
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| 39 |
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[8698] | 40 | static TypeLoader() {
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| 41 | // we use Int32 here because we get all the information about Mono's mscorlib and just have to change the class name
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[9014] | 42 | cachedMonoRuntimeType = TypeNameParser.Parse(typeof(System.Int32).AssemblyQualifiedName);
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| 43 | cachedMonoRuntimeType = new TypeName(cachedMonoRuntimeType, "MonoType");
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[8698] | 44 |
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[9014] | 45 | cachedWindowsRuntimeType = TypeNameParser.Parse(typeof(System.Int32).AssemblyQualifiedName);
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| 46 | cachedWindowsRuntimeType = new TypeName(cachedWindowsRuntimeType, "RuntimeType");
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| 47 |
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[8698] | 48 | // we need the information about the Persistence assembly, so we use TypeName here because it is contained in this assembly
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[9014] | 49 | cachedMonoObjectEqualityComparerType = TypeNameParser.Parse(typeof(TypeName).AssemblyQualifiedName);
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| 50 | cachedMonoObjectEqualityComparerType = new TypeName(cachedMonoObjectEqualityComparerType, "ObjectEqualityComparer", "HeuristicLab.Persistence.Mono");
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| 51 |
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| 52 | cachedWindowsObjectEqualityComparerType = TypeNameParser.Parse(typeof(System.Int32).AssemblyQualifiedName);
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| 53 | cachedWindowsObjectEqualityComparerType = new TypeName(cachedWindowsObjectEqualityComparerType, "ObjectEqualityComparer", "System.Collections.Generic");
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[8698] | 54 | }
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| 55 | #endregion
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| 56 |
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[8641] | 57 | public static Type Load(string typeNameString) {
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[8698] | 58 | TypeName typeName = null;
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[8641] | 59 | try {
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[8698] | 60 | typeName = TypeNameParser.Parse(typeNameString);
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| 61 | }
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| 62 | catch (Exception) {
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| 63 | throw new PersistenceException(String.Format(
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| 64 | "Could not parse type string \"{0}\"",
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| 65 | typeNameString));
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| 66 | }
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| 67 |
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| 68 | try {
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[8641] | 69 | // try to load type normally
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[8698] | 70 | return LoadInternal(typeName);
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[8641] | 71 | }
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| 72 | catch (PersistenceException) {
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| 73 | #region Mono Compatibility
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[9014] | 74 | // if that fails, try to convert to the corresponding Mono or .NET type
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| 75 | if (MonoInstalled) {
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[9015] | 76 | typeName = GetMonoType(typeName);
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| 77 | Logger.Info(String.Format(@"Trying to load Mono type ""{0}"" instead of .NET type ""{1}""",
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| 78 | typeName, typeNameString));
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[9014] | 79 | } else {
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[9015] | 80 | typeName = GetDotNetType(typeName);
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| 81 | Logger.Info(String.Format(@"Trying to load .NET type ""{0}"" instead of Mono type ""{1}""",
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| 82 | typeName, typeNameString));
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| 83 |
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[9014] | 84 | }
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[9015] | 85 | return LoadInternal(typeName);
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| 86 | #endregion
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[8641] | 87 | }
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| 88 | }
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[1780] | 89 |
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[8698] | 90 | private static Type LoadInternal(TypeName typeName) {
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[1780] | 91 | Type type;
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| 92 | try {
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[8698] | 93 | type = Type.GetType(typeName.ToString(true, true), true);
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| 94 | }
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[4068] | 95 | catch (Exception) {
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[1780] | 96 | Logger.Warn(String.Format(
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[8698] | 97 | "Cannot load type \"{0}\", falling back to partial name", typeName.ToString(true, true)));
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| 98 | type = LoadWithPartialName(typeName);
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| 99 | CheckCompatibility(typeName, type);
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[8641] | 100 | }
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| 101 | return type;
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| 102 | }
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| 103 |
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[8698] | 104 | private static Type LoadWithPartialName(TypeName typeName) {
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[8641] | 105 | try {
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[3036] | 106 | #pragma warning disable 0618
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[8641] | 107 | Assembly a = Assembly.LoadWithPartialName(typeName.AssemblyName);
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| 108 | // the suggested Assembly.Load() method fails to load assemblies outside the GAC
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[3036] | 109 | #pragma warning restore 0618
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[8641] | 110 | return a.GetType(typeName.ToString(false, false), true);
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| 111 | }
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| 112 | catch (Exception) {
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| 113 | throw new PersistenceException(String.Format(
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| 114 | "Could not load type \"{0}\"",
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[8698] | 115 | typeName.ToString(true, true)));
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[8641] | 116 | }
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| 117 | }
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| 118 |
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[8698] | 119 | private static void CheckCompatibility(TypeName typeName, Type type) {
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[8641] | 120 | try {
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| 121 | TypeName loadedTypeName = TypeNameParser.Parse(type.AssemblyQualifiedName);
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[8698] | 122 | if (!typeName.IsCompatible(loadedTypeName))
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[1780] | 123 | throw new PersistenceException(String.Format(
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[8641] | 124 | "Serialized type is incompatible with available type: serialized: {0}, loaded: {1}",
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[8698] | 125 | typeName.ToString(true, true),
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[8641] | 126 | type.AssemblyQualifiedName));
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[8698] | 127 | if (typeName.IsNewerThan(loadedTypeName))
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[8641] | 128 | throw new PersistenceException(String.Format(
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| 129 | "Serialized type is newer than available type: serialized: {0}, loaded: {1}",
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[8698] | 130 | typeName.ToString(true, true),
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[8641] | 131 | type.AssemblyQualifiedName));
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[1780] | 132 | }
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[8641] | 133 | catch (PersistenceException) {
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| 134 | throw;
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| 135 | }
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| 136 | catch (Exception e) {
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| 137 | Logger.Warn(String.Format(
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| 138 | "Could not perform version check requested type was {0} while loaded type is {1}:",
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[8698] | 139 | typeName.ToString(true, true),
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[8641] | 140 | type.AssemblyQualifiedName),
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| 141 | e);
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| 142 | }
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[1780] | 143 | }
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[8641] | 144 |
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| 145 | #region Mono Compatibility
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| 146 | /// <summary>
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| 147 | /// Returns the corresponding type for the Mono runtime
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| 148 | /// </summary>
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| 149 | /// <returns>
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[8699] | 150 | /// The remapped typeName, or the original typeName if no mapping was found
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[8641] | 151 | /// </returns>
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[8698] | 152 | private static TypeName GetMonoType(TypeName typeName) {
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[8641] | 153 | // map System.RuntimeType to System.MonoType
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| 154 | if (typeName.Namespace == "System" && typeName.ClassName == "RuntimeType") {
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[9014] | 155 | return cachedMonoRuntimeType;
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[8698] | 156 | // map System.Collections.Generic.ObjectEqualityComparer to HeuristicLab.Mono.ObjectEqualityComparer
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[8641] | 157 | } else if (typeName.Namespace == "System.Collections.Generic" && typeName.ClassName == "ObjectEqualityComparer") {
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[9014] | 158 | TypeName newTypeName = new TypeName(cachedMonoObjectEqualityComparerType);
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[8698] | 159 | newTypeName.GenericArgs = new List<TypeName>(typeName.GenericArgs);
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| 160 | return newTypeName;
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[8641] | 161 | }
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[8698] | 162 | return typeName;
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[8641] | 163 | }
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[9014] | 164 |
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| 165 | /// <summary>
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| 166 | /// Returns the corresponding type for the .NET runtime
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| 167 | /// </summary>
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| 168 | /// <returns>
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| 169 | /// The remapped typeName, or the original typeName if no mapping was found
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| 170 | /// </returns>
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| 171 | private static TypeName GetDotNetType(TypeName typeName) {
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| 172 | // map System.MonoType to System.RuntimeType
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| 173 | if (typeName.Namespace == "System" && typeName.ClassName == "MonoType") {
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| 174 | return cachedWindowsRuntimeType;
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[9015] | 175 | // maps Mono's string comparer to System.Collections.Generic.ObjectEqualityComparer<string>
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[9014] | 176 | } else if (typeName.Namespace == "System.Collections.Generic" && typeName.ClassName == "InternalStringComparer") {
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| 177 | TypeName newTypeName = new TypeName(cachedWindowsObjectEqualityComparerType);
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| 178 | var genericArgsList = new List<TypeName>();
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| 179 | genericArgsList.Add(new TypeName(typeof(String).Namespace, "String"));
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| 180 | newTypeName.GenericArgs = genericArgsList;
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| 181 | return newTypeName;
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| 182 | } else if (typeName.Namespace == "System.Collections.Generic" && typeName.ClassName == "EqualityComparer+DefaultComparer") {
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| 183 | TypeName newTypeName = new TypeName(cachedWindowsObjectEqualityComparerType);
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| 184 | newTypeName.GenericArgs = new List<TypeName>(typeName.GenericArgs);
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| 185 | return newTypeName;
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| 186 | }
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| 187 | return typeName;
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| 188 | }
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[8641] | 189 | #endregion
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[1780] | 190 | }
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[1454] | 191 | } |
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