1 | #ifndef _Identifier_H__ |
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2 | #define _Identifier_H__ |
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3 | |
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4 | #include <iostream> |
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5 | |
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6 | #include "IdentifierList.h" |
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7 | #include "ObjectList.h" |
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8 | //#include "OrxonoxClass.h" |
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9 | #include "Factory.h" |
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10 | |
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11 | // DONE AND TESTED: |
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12 | // - build class hierarchy |
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13 | // - isA, isChildOf, ... |
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14 | // - insert into class-lists |
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15 | // - ClassIdentifier |
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16 | // - BaseIdentifier |
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17 | // - Factory |
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18 | |
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19 | // IN WORK: |
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20 | |
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21 | // TO DO: |
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22 | // - iterate through lists |
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23 | |
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24 | namespace orxonox |
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25 | { |
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26 | class BaseObject; |
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27 | |
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28 | // ##### Identifier ##### |
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29 | class Identifier |
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30 | { |
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31 | template <class T> |
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32 | friend class ClassIdentifier; |
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33 | |
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34 | template <class T> |
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35 | friend class BaseIdentifier; |
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36 | |
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37 | public: |
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38 | void addObject(OrxonoxClass* object); |
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39 | void removeObject(OrxonoxClass* object); |
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40 | |
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41 | virtual BaseObject* fabricate() {}; |
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42 | |
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43 | bool isA(Identifier* identifier); |
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44 | bool isDirectlyA(Identifier* identifier); |
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45 | bool isChildOf(Identifier* identifier); |
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46 | bool isDirectChildOf(Identifier* identifier); |
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47 | bool isParentOf(Identifier* identifier); |
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48 | bool isDirectParentOf(Identifier* identifier); |
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49 | |
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50 | std::string getName() { return this->name_; } |
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51 | IdentifierList* getDirectParents() { return &(this->directParents_); } |
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52 | IdentifierList* getAllParents() { return &(this->allParents_); } |
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53 | IdentifierList* getDirectChildren() { return &(this->directChildren_); } |
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54 | IdentifierList* getAllChildren() { return &(this->allChildren_); } |
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55 | |
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56 | static bool isCreatingHierarchy() { return (hierarchyCreatingCounter_s > 0); } |
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57 | |
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58 | private: |
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59 | Identifier(); |
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60 | Identifier(const Identifier& identifier) {} |
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61 | virtual ~Identifier(); |
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62 | void initialize(IdentifierList* parents); |
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63 | |
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64 | static void startCreatingHierarchy() { hierarchyCreatingCounter_s++; std::cout << "*** Increased Hierarchy-Creating-Counter to " << hierarchyCreatingCounter_s << "\n"; } |
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65 | static void stopCreatingHierarchy() { hierarchyCreatingCounter_s--; std::cout << "*** Decreased Hierarchy-Creating-Counter to " << hierarchyCreatingCounter_s << "\n"; } |
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66 | |
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67 | IdentifierList directParents_; |
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68 | IdentifierList allParents_; |
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69 | IdentifierList directChildren_; |
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70 | IdentifierList allChildren_; |
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71 | |
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72 | ObjectList objects_; |
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73 | std::string name_; |
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74 | |
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75 | bool bIsAbstractClass_; |
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76 | bool bCreatedOneObject_; |
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77 | |
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78 | static int hierarchyCreatingCounter_s; |
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79 | }; |
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80 | |
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81 | |
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82 | // ##### ClassIdentifier ##### |
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83 | template <class T> |
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84 | class ClassIdentifier : public Identifier |
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85 | { |
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86 | public: |
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87 | static ClassIdentifier<T>* registerClass(IdentifierList* parents, std::string name, bool bRootClass, bool bIsAbstractClass); |
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88 | static ClassIdentifier<T>* getIdentifier(); |
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89 | BaseObject* fabricate(); |
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90 | T* fabricateClass(); |
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91 | |
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92 | private: |
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93 | ClassIdentifier(); |
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94 | ClassIdentifier(const ClassIdentifier<T>& identifier) {} |
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95 | ~ClassIdentifier(); |
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96 | |
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97 | static ClassIdentifier<T>* pointer_s; |
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98 | |
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99 | }; |
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100 | |
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101 | template <class T> |
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102 | ClassIdentifier<T>* ClassIdentifier<T>::pointer_s = NULL; |
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103 | |
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104 | template <class T> |
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105 | ClassIdentifier<T>::ClassIdentifier() |
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106 | { |
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107 | } |
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108 | |
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109 | template <class T> |
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110 | ClassIdentifier<T>::~ClassIdentifier() |
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111 | { |
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112 | this->pointer_s = NULL; |
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113 | } |
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114 | |
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115 | template <class T> |
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116 | BaseObject* ClassIdentifier<T>::fabricate() |
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117 | { |
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118 | return dynamic_cast<BaseObject*>(this->fabricateClass()); |
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119 | } |
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120 | |
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121 | template <class T> |
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122 | T* ClassIdentifier<T>::fabricateClass() |
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123 | { |
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124 | if (!this->bIsAbstractClass_) |
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125 | { |
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126 | return new T; |
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127 | } |
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128 | else |
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129 | { |
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130 | std::cout << "Error: Couldn't create a new Object - Class " << this->name_ << " is abstract!\n"; |
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131 | std::cout << "Aborting...\n"; |
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132 | abort(); |
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133 | } |
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134 | } |
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135 | |
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136 | template <class T> |
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137 | ClassIdentifier<T>* ClassIdentifier<T>::registerClass(IdentifierList* parents, std::string name, bool bRootClass, bool bIsAbstractClass) |
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138 | { |
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139 | std::cout << "*** Register Class in " << name << "-Singleton.\n"; |
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140 | if (!pointer_s) |
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141 | { |
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142 | std::cout << "*** Register Class in " << name << "-Singleton -> Create Singleton.\n"; |
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143 | if (parents || bRootClass) |
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144 | { |
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145 | pointer_s = new ClassIdentifier(); |
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146 | pointer_s->name_ = name; |
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147 | pointer_s->bIsAbstractClass_ = bIsAbstractClass; |
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148 | |
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149 | ClassFactory::add(name, pointer_s); |
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150 | |
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151 | if (!bRootClass) |
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152 | pointer_s->initialize(parents); |
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153 | else |
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154 | pointer_s->initialize(NULL); |
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155 | } |
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156 | else |
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157 | { |
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158 | pointer_s = getIdentifier(); |
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159 | } |
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160 | } |
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161 | |
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162 | return pointer_s; |
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163 | } |
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164 | |
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165 | template <class T> |
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166 | ClassIdentifier<T>* ClassIdentifier<T>::getIdentifier() |
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167 | { |
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168 | // std::cout << "*** Get Identifier.\n"; |
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169 | if (!pointer_s) |
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170 | { |
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171 | std::cout << "*** Get Identifier -> Create Class\n"; |
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172 | Identifier::startCreatingHierarchy(); |
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173 | T* temp = new T(); |
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174 | Identifier::stopCreatingHierarchy(); |
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175 | delete temp; |
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176 | } |
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177 | |
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178 | return pointer_s; |
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179 | } |
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180 | |
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181 | // ##### BaseIdentifier ##### |
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182 | template <class B> |
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183 | class BaseIdentifier |
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184 | { |
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185 | public: |
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186 | BaseIdentifier(); |
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187 | |
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188 | BaseIdentifier<B>& operator= (Identifier* identifier) |
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189 | { |
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190 | if (!identifier->isA(ClassIdentifier<B>::getIdentifier())) |
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191 | { |
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192 | std::cout << "Error: Class " << identifier->getName() << " is not a " << ClassIdentifier<B>::getIdentifier()->getName() << "!\n"; |
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193 | std::cout << "Error: BaseIdentifier<" << ClassIdentifier<B>::getIdentifier()->getName() << "> = Class(" << identifier->getName() << ") is forbidden.\n"; |
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194 | std::cout << "Aborting...\n"; |
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195 | abort(); |
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196 | } |
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197 | this->identifier_ = identifier; |
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198 | return *this; |
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199 | } |
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200 | |
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201 | Identifier* operator* () |
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202 | { |
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203 | return this->identifier_; |
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204 | } |
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205 | |
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206 | Identifier* operator-> () const |
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207 | { |
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208 | return this->identifier_; |
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209 | } |
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210 | |
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211 | B* fabricate() |
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212 | { |
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213 | BaseObject* newObject = this->identifier_->fabricate(); |
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214 | if (newObject) |
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215 | { |
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216 | return dynamic_cast<B*>(newObject); |
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217 | } |
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218 | else |
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219 | { |
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220 | if (this->identifier_) |
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221 | { |
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222 | std::cout << "Error: Class " << this->identifier_->getName() << " is not a " << ClassIdentifier<B>::getIdentifier()->getName() << "!\n"; |
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223 | std::cout << "Error: Couldn't fabricate a new Object.\n"; |
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224 | std::cout << "Aborting...\n"; |
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225 | } |
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226 | else |
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227 | { |
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228 | std::cout << "Error: Couldn't fabricate a new Object - Identifier is undefined.\n"; |
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229 | std::cout << "Aborting...\n"; |
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230 | } |
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231 | |
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232 | abort(); |
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233 | } |
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234 | } |
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235 | |
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236 | inline Identifier* getIdentifier() |
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237 | { return this->identifier_; } |
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238 | inline bool isA(Identifier* identifier) |
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239 | { return this->identifier_->isA(identifier); } |
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240 | inline bool isDirectlyA(Identifier* identifier) |
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241 | { return this->identifier_->isDirectlyA(identifier); } |
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242 | inline bool isChildOf(Identifier* identifier) |
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243 | { return this->identifier_->isChildOf(identifier); } |
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244 | inline bool isDirectChildOf(Identifier* identifier) |
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245 | { return this->identifier_->isDirectChildOf(identifier); } |
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246 | inline bool isParentOf(Identifier* identifier) |
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247 | { return this->identifier_->isParentOf(identifier); } |
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248 | inline bool isDirectParentOf(Identifier* identifier) |
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249 | { return this->identifier_->isDirectParentOf(identifier); } |
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250 | |
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251 | private: |
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252 | Identifier* identifier_; |
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253 | }; |
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254 | |
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255 | template <class B> |
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256 | BaseIdentifier<B>::BaseIdentifier() |
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257 | { |
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258 | this->identifier_ = ClassIdentifier<B>::getIdentifier(); |
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259 | } |
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260 | } |
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261 | |
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262 | #endif |
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