1 | /* |
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2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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3 | * > www.orxonox.net < |
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4 | * |
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5 | * |
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6 | * License notice: |
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7 | * |
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8 | * This program is free software; you can redistribute it and/or |
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9 | * modify it under the terms of the GNU General Public License |
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10 | * as published by the Free Software Foundation; either version 2 |
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11 | * of the License, or (at your option) any later version. |
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12 | * |
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13 | * This program is distributed in the hope that it will be useful, |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | * GNU General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU General Public License |
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19 | * along with this program; if not, write to the Free Software |
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20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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21 | * |
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22 | * Author: |
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23 | * Fabian 'x3n' Landau |
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24 | * Co-authors: |
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25 | * ... |
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26 | * |
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27 | */ |
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28 | |
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29 | /** |
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30 | @file |
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31 | @brief Implementation of the Identifier class. |
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32 | */ |
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33 | |
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34 | #include "IdentifierManager.h" |
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35 | |
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36 | #include <ostream> |
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37 | |
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38 | #include "util/StringUtils.h" |
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39 | #include "core/Core.h" |
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40 | #include "core/config/ConfigValueContainer.h" |
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41 | #include "core/XMLPort.h" |
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42 | #include "core/object/ClassFactory.h" |
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43 | |
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44 | namespace orxonox |
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45 | { |
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46 | /* static */ IdentifierManager& IdentifierManager::getInstance() |
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47 | { |
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48 | static IdentifierManager instance; |
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49 | return instance; |
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50 | } |
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51 | |
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52 | IdentifierManager::IdentifierManager() |
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53 | { |
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54 | this->hierarchyCreatingCounter_s = 0; |
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55 | this->classIDCounter_s = 0; |
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56 | this->recordTraceForIdentifier_ = NULL; |
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57 | } |
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58 | |
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59 | /** |
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60 | * Registers the identifier in all maps of the IdentifierManager. |
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61 | */ |
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62 | void IdentifierManager::addIdentifier(Identifier* identifier) |
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63 | { |
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64 | orxout(verbose, context::identifier) << "Adding identifier for " << identifier->getName() << " / " << identifier->getTypeInfo().name() << endl; |
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65 | |
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66 | this->identifiers_.insert(identifier); |
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67 | this->identifierByString_[identifier->getName()] = identifier; |
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68 | this->identifierByLowercaseString_[getLowercase(identifier->getName())] = identifier; |
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69 | this->identifierByNetworkId_[identifier->getNetworkID()] = identifier; |
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70 | } |
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71 | |
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72 | /** |
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73 | @brief Creates the class-hierarchy by creating and destroying one object of each type. |
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74 | */ |
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75 | void IdentifierManager::createClassHierarchy() |
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76 | { |
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77 | orxout(internal_status) << "Create class-hierarchy" << endl; |
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78 | this->startCreatingHierarchy(); |
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79 | |
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80 | std::set<Identifier*> initializedIdentifiers; |
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81 | |
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82 | // ensure root context exists before starting to create objects. if the root context is dynamically created while creating the class hierarchy, we |
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83 | // would mistakenly assume the class of the currently created object inherits from Context |
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84 | Context::getRootContext(); |
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85 | |
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86 | // iterate over all identifiers, create one instance of each class and initialize the identifiers |
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87 | { |
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88 | Context temporaryContext(NULL); |
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89 | for (std::set<Identifier*>::const_iterator it = this->identifiers_.begin(); it != this->identifiers_.end(); ++it) |
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90 | { |
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91 | Identifier* identifier = (*it); |
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92 | |
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93 | orxout(verbose, context::identifier) << "Initialize ClassIdentifier<" << identifier->getName() << ">-Singleton." << endl; |
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94 | // To initialize the identifier, we create a new object and delete it afterwards. |
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95 | if (identifier->hasFactory()) |
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96 | { |
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97 | this->identifierTraceOfNewObject_.clear(); |
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98 | this->recordTraceForIdentifier_ = identifier; |
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99 | |
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100 | Identifiable* temp = identifier->fabricate(&temporaryContext); |
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101 | |
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102 | this->recordTraceForIdentifier_ = NULL; |
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103 | |
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104 | if (temp->getIdentifier() != identifier) |
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105 | orxout(internal_error) << "Newly created object of type " << identifier->getName() << " has unexpected identifier. Did you forget to use RegisterObject(classname)?" << endl; |
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106 | |
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107 | identifier->initializeParents(this->identifierTraceOfNewObject_[temp]); |
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108 | |
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109 | delete temp; |
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110 | } |
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111 | |
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112 | initializedIdentifiers.insert(identifier); |
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113 | } |
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114 | |
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115 | size_t numberOfObjects = temporaryContext.getObjectList<Listable>()->size(); |
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116 | if (numberOfObjects > 0) |
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117 | orxout(internal_warning) << "There are still " << numberOfObjects << " listables left after creating the class hierarchy" << endl; |
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118 | } |
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119 | |
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120 | // finish the initialization of all identifiers |
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121 | for (std::set<Identifier*>::const_iterator it = this->identifiers_.begin(); it != this->identifiers_.end(); ++it) |
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122 | { |
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123 | Identifier* identifier = (*it); |
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124 | |
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125 | if (initializedIdentifiers.find(identifier) != initializedIdentifiers.end()) |
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126 | identifier->finishInitialization(); |
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127 | else |
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128 | orxout(internal_error) << "Identifier was registered late and is not initialized: " << identifier->getName() << " / " << identifier->getTypeInfo().name() << endl; |
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129 | } |
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130 | |
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131 | // only check class hierarchy in dev mode because it's an expensive operation and it requires a developer to fix detected problems anyway. |
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132 | if (!Core::exists() || Core::getInstance().inDevMode()) |
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133 | this->verifyClassHierarchy(); |
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134 | |
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135 | this->stopCreatingHierarchy(); |
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136 | orxout(internal_status) << "Finished class-hierarchy creation" << endl; |
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137 | } |
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138 | |
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139 | /** |
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140 | * Verifies if the class hierarchy is consistent with the RTTI. |
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141 | */ |
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142 | void IdentifierManager::verifyClassHierarchy() |
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143 | { |
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144 | Context temporaryContext(NULL); |
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145 | for (std::set<Identifier*>::const_iterator it1 = this->identifiers_.begin(); it1 != this->identifiers_.end(); ++it1) |
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146 | { |
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147 | if (!(*it1)->hasFactory()) |
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148 | continue; |
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149 | |
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150 | Identifiable* temp = (*it1)->fabricate(&temporaryContext); |
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151 | |
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152 | for (std::set<Identifier*>::const_iterator it2 = this->identifiers_.begin(); it2 != this->identifiers_.end(); ++it2) |
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153 | { |
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154 | bool isA_AccordingToRtti = (*it2)->canDynamicCastObjectToIdentifierClass(temp); |
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155 | bool isA_AccordingToClassHierarchy = temp->isA((*it2)); |
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156 | |
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157 | if (isA_AccordingToRtti != isA_AccordingToClassHierarchy) |
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158 | { |
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159 | orxout(internal_error) << "Class hierarchy does not match RTTI: Class hierarchy claims that " << (*it1)->getName() << |
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160 | (isA_AccordingToClassHierarchy ? " is a " : " is not a ") << (*it2)->getName() << " but RTTI says the opposite." << endl; |
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161 | } |
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162 | } |
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163 | |
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164 | delete temp; |
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165 | } |
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166 | orxout(internal_info) << "Class hierarchy matches RTTI" << endl; |
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167 | |
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168 | size_t numberOfObjects = temporaryContext.getObjectList<Listable>()->size(); |
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169 | if (numberOfObjects > 0) |
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170 | orxout(internal_warning) << "There are still " << numberOfObjects << " listables left after creating the class hierarchy" << endl; |
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171 | } |
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172 | |
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173 | /** |
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174 | * @brief Resets all Identifiers. |
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175 | */ |
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176 | void IdentifierManager::destroyClassHierarchy() |
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177 | { |
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178 | orxout(internal_status) << "Destroy class-hierarchy" << endl; |
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179 | for (std::set<Identifier*>::const_iterator it = this->identifiers_.begin(); it != this->identifiers_.end(); ++it) |
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180 | (*it)->reset(); |
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181 | } |
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182 | |
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183 | /** |
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184 | * @brief Notifies the IdentifierManager about a newly created object while creating the class hierarchy. |
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185 | */ |
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186 | void IdentifierManager::createdObject(Identifiable* identifiable) |
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187 | { |
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188 | if (this->isCreatingHierarchy()) |
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189 | { |
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190 | if (this->recordTraceForIdentifier_) |
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191 | { |
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192 | std::list<const Identifier*>& traceForObject = this->identifierTraceOfNewObject_[identifiable]; |
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193 | if (std::find(traceForObject.begin(), traceForObject.end(), identifiable->getIdentifier()) != traceForObject.end()) |
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194 | { |
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195 | orxout(internal_warning) << this->recordTraceForIdentifier_->getName() << " inherits two times from " << |
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196 | identifiable->getIdentifier()->getName() << ". Did you forget to use virtual inheritance?" << endl; |
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197 | } |
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198 | traceForObject.push_back(identifiable->getIdentifier()); |
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199 | } |
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200 | } |
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201 | else |
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202 | orxout(internal_warning) << "createdObject() called outside of class hierarchy creation" << endl; |
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203 | } |
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204 | |
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205 | /** |
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206 | @brief Returns the Identifier with a given name. |
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207 | @param name The name of the wanted Identifier |
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208 | @return The Identifier |
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209 | */ |
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210 | Identifier* IdentifierManager::getIdentifierByString(const std::string& name) |
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211 | { |
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212 | std::map<std::string, Identifier*>::const_iterator it = this->identifierByString_.find(name); |
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213 | if (it != this->identifierByString_.end()) |
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214 | return it->second; |
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215 | else |
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216 | return 0; |
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217 | } |
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218 | |
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219 | /** |
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220 | @brief Returns the Identifier with a given name in lowercase. |
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221 | @param name The name of the wanted Identifier |
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222 | @return The Identifier |
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223 | */ |
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224 | Identifier* IdentifierManager::getIdentifierByLowercaseString(const std::string& name) |
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225 | { |
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226 | std::map<std::string, Identifier*>::const_iterator it = this->identifierByLowercaseString_.find(name); |
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227 | if (it != this->identifierByLowercaseString_.end()) |
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228 | return it->second; |
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229 | else |
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230 | return 0; |
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231 | } |
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232 | |
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233 | /** |
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234 | @brief Returns the Identifier with a given network ID. |
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235 | @param id The network ID of the wanted Identifier |
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236 | @return The Identifier |
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237 | */ |
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238 | Identifier* IdentifierManager::getIdentifierByID(const uint32_t id) |
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239 | { |
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240 | std::map<uint32_t, Identifier*>::const_iterator it = this->identifierByNetworkId_.find(id); |
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241 | if (it != this->identifierByNetworkId_.end()) |
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242 | return it->second; |
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243 | else |
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244 | return 0; |
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245 | } |
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246 | |
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247 | /** |
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248 | @brief Returns the Identifier with a given typeid-name. |
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249 | @param name The typeid-name of the wanted Identifier |
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250 | @return The Identifier |
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251 | */ |
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252 | Identifier* IdentifierManager::getIdentifierByTypeInfo(const std::type_info& typeInfo) |
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253 | { |
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254 | // TODO: use std::type_index and a map to find identifiers by type_info (only with c++11) |
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255 | for (std::set<Identifier*>::iterator it = this->identifiers_.begin(); it != this->identifiers_.end(); ++it) |
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256 | if ((*it)->getTypeInfo() == typeInfo) |
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257 | return (*it); |
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258 | return 0; |
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259 | } |
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260 | |
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261 | /** |
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262 | @brief Cleans the NetworkID map (needed on clients for correct initialization) |
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263 | */ |
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264 | void IdentifierManager::clearNetworkIDs() |
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265 | { |
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266 | this->identifierByNetworkId_.clear(); |
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267 | } |
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268 | |
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269 | /** |
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270 | @brief Destroys all Identifiers. Called when exiting the program. |
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271 | */ |
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272 | void IdentifierManager::destroyAllIdentifiers() |
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273 | { |
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274 | for (std::set<Identifier*>::iterator it = this->identifiers_.begin(); it != this->identifiers_.end(); ++it) |
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275 | delete (*it); |
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276 | |
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277 | this->identifiers_.clear(); |
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278 | this->identifierByString_.clear(); |
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279 | this->identifierByLowercaseString_.clear(); |
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280 | this->identifierByNetworkId_.clear(); |
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281 | } |
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282 | } |
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