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| @@ -1,189 +1,189 @@ | ||
| /**************************************************************************** | ||
| ** | ||
| ** Copyright (C) 2009-2010 TECHNOGERMA Systems France and/or its subsidiary(-ies). | ||
| ** Contact: Technogerma Systems France Information ([email protected]) | ||
| ** | ||
| ** This file is part of the CAMP library. | ||
| ** | ||
| ** CAMP is free software: you can redistribute it and/or modify | ||
| ** it under the terms of the GNU Lesser General Public License as published by | ||
| ** the Free Software Foundation, either version 3 of the License, or | ||
| ** (at your option) any later version. | ||
| ** | ||
| ** CAMP is distributed in the hope that it will be useful, | ||
| ** but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| ** GNU Lesser General Public License for more details. | ||
| ** | ||
| ** You should have received a copy of the GNU Lesser General Public License | ||
| ** along with CAMP. If not, see <http://www.gnu.org/licenses/>. | ||
| ** | ||
| ****************************************************************************/ | ||
|
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| #ifndef CAMP_DETAIL_CLASSMANAGER_HPP | ||
| #define CAMP_DETAIL_CLASSMANAGER_HPP | ||
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| #include <camp/config.hpp> | ||
| #include <camp/detail/observernotifier.hpp> | ||
| #include <boost/noncopyable.hpp> | ||
| #include <boost/shared_ptr.hpp> | ||
| #include <boost/shared_ptr.hpp> | ||
| #include <boost/multi_index_container.hpp> | ||
| #include <boost/multi_index/member.hpp> | ||
| #include <boost/multi_index/ordered_index.hpp> | ||
| #include <string> | ||
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| namespace bm = boost::multi_index; | ||
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| namespace camp | ||
| { | ||
| class Class; | ||
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| namespace detail | ||
| { | ||
| /** | ||
| * \brief Manages creation, storage, retrieval and destruction of metaclasses | ||
| * | ||
| * camp::ClassManager is the place where all metaclasses are stored and accessed. | ||
| * It consists of a singleton which is created on first use and destroyed at global exit. | ||
| * | ||
| * \sa Class | ||
| */ | ||
| class CAMP_API ClassManager : public ObserverNotifier, boost::noncopyable | ||
| { | ||
| public: | ||
|
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| /** | ||
| * \brief Get the unique instance of the class | ||
| * | ||
| * \return Reference to the unique instance of ClassManager | ||
| */ | ||
| static ClassManager& instance(); | ||
|
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| /** | ||
| * \brief Create and register a new metaclass | ||
| * | ||
| * This is the entry point for every metaclass creation. This | ||
| * function also notifies registered observers after successful creations. | ||
| * | ||
| * \param name Name of the metaclass to create (must be unique) | ||
| * \param id Identifier of the C++ class bound to the metaclass | ||
| * | ||
| * \return Reference to the new metaclass | ||
| * | ||
| * \throw ClassAlreadyCreated \a name or \a id already exists | ||
| */ | ||
| Class& addClass(const std::string& name, const std::string& id); | ||
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| /** | ||
| * \brief Get the total number of metaclasses | ||
| * | ||
| * \return Number of metaclasses that have been registered | ||
| */ | ||
| std::size_t count() const; | ||
|
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| /** | ||
| * \brief Get a metaclass from its global index | ||
| * | ||
| * This function, together with ClassManager::count, provides a way to iterate through | ||
| * all the metaclasses that have been declared. | ||
| * | ||
| * \param index Global index of the metaclass to get | ||
| * | ||
| * \return Reference to the index-th metaclass | ||
| * | ||
| * \throw OutOfRange index is out of range | ||
| */ | ||
| const Class& getByIndex(std::size_t index) const; | ||
|
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| /** | ||
| * \brief Get a metaclass from its name | ||
| * | ||
| * \param name Name of the metaclass to retrieve | ||
| * | ||
| * \return Reference to the requested metaclass | ||
| * | ||
| * \throw ClassNotFound name is not the name of an existing metaclass | ||
| */ | ||
| const Class& getByName(const std::string& name) const; | ||
|
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| /** | ||
| * \brief Get a metaclass from a C++ type | ||
| * | ||
| * \param id Identifier of the C++ type | ||
| * | ||
| * \return Reference to the requested metaclass | ||
| * | ||
| * \throw ClassNotFound id is not the name of an existing metaclass | ||
| */ | ||
| const Class& getById(const std::string& id) const; | ||
|
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| /** | ||
| * \brief Get a metaclass from a C++ type | ||
| * | ||
| * This version returns a null pointer if no metaclass is found, instead | ||
| * of throwing an exception. | ||
| * | ||
| * \param id Identifier of the C++ type | ||
| * | ||
| * \return Pointer to the requested metaclass, or 0 if not found | ||
| */ | ||
| const Class* getByIdSafe(const std::string& id) const; | ||
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| /** | ||
| * \brief Check if a given type has a metaclass | ||
| * | ||
| * \param id Identifier of the C++ type | ||
| * | ||
| * \return True if the class exists, false otherwise | ||
| */ | ||
| bool classExists(const std::string& id) const; | ||
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| private: | ||
|
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| /** | ||
| * \brief Default constructor | ||
| */ | ||
| ClassManager(); | ||
|
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| /** | ||
| * \brief Destructor | ||
| * | ||
| * The destructor destroys all the registered metaclasses and notifies the observers. | ||
| */ | ||
| ~ClassManager(); | ||
|
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| /** | ||
| * \brief Structure gathering a class, its type identifier and its name | ||
| */ | ||
| struct ClassInfo | ||
| { | ||
| std::string id; | ||
| std::string name; | ||
| std::shared_ptr<Class> classPtr; | ||
| }; | ||
|
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| struct Id; | ||
| struct Name; | ||
|
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| typedef boost::multi_index_container<ClassInfo, | ||
| bm::indexed_by<bm::ordered_unique<bm::tag<Id>, bm::member<ClassInfo, std::string, &ClassInfo::id> >, | ||
| bm::ordered_unique<bm::tag<Name>, bm::member<ClassInfo, std::string, &ClassInfo::name> > | ||
| > | ||
| > ClassTable; | ||
|
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| typedef ClassTable::index<Id>::type IdIndex; | ||
| typedef ClassTable::index<Name>::type NameIndex; | ||
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| ClassTable m_classes; ///< Table storing classes indexed by their id and name | ||
| }; | ||
|
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| } // namespace detail | ||
|
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| } // namespace camp | ||
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| #endif // CAMP_DETAIL_CLASSMANAGER_HPP | ||
| /**************************************************************************** | ||
| ** | ||
| ** Copyright (C) 2009-2010 TECHNOGERMA Systems France and/or its subsidiary(-ies). | ||
| ** Contact: Technogerma Systems France Information ([email protected]) | ||
| ** | ||
| ** This file is part of the CAMP library. | ||
| ** | ||
| ** CAMP is free software: you can redistribute it and/or modify | ||
| ** it under the terms of the GNU Lesser General Public License as published by | ||
| ** the Free Software Foundation, either version 3 of the License, or | ||
| ** (at your option) any later version. | ||
| ** | ||
| ** CAMP is distributed in the hope that it will be useful, | ||
| ** but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| ** GNU Lesser General Public License for more details. | ||
| ** | ||
| ** You should have received a copy of the GNU Lesser General Public License | ||
| ** along with CAMP. If not, see <http://www.gnu.org/licenses/>. | ||
| ** | ||
| ****************************************************************************/ | ||
|
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|
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| #ifndef CAMP_DETAIL_CLASSMANAGER_HPP | ||
| #define CAMP_DETAIL_CLASSMANAGER_HPP | ||
|
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| #include <camp/config.hpp> | ||
| #include <camp/detail/observernotifier.hpp> | ||
| #include <boost/noncopyable.hpp> | ||
| #include <boost/shared_ptr.hpp> | ||
| #include <boost/shared_ptr.hpp> | ||
| #include <boost/multi_index_container.hpp> | ||
| #include <boost/multi_index/member.hpp> | ||
| #include <boost/multi_index/ordered_index.hpp> | ||
| #include <string> | ||
|
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||
|
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| namespace bm = boost::multi_index; | ||
|
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| namespace camp | ||
| { | ||
| class Class; | ||
|
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||
| namespace detail | ||
| { | ||
| /** | ||
| * \brief Manages creation, storage, retrieval and destruction of metaclasses | ||
| * | ||
| * camp::ClassManager is the place where all metaclasses are stored and accessed. | ||
| * It consists of a singleton which is created on first use and destroyed at global exit. | ||
| * | ||
| * \sa Class | ||
| */ | ||
| class CAMP_API ClassManager : public ObserverNotifier, boost::noncopyable | ||
| { | ||
| public: | ||
|
|
||
| /** | ||
| * \brief Get the unique instance of the class | ||
| * | ||
| * \return Reference to the unique instance of ClassManager | ||
| */ | ||
| static ClassManager& instance(); | ||
|
|
||
| /** | ||
| * \brief Create and register a new metaclass | ||
| * | ||
| * This is the entry point for every metaclass creation. This | ||
| * function also notifies registered observers after successful creations. | ||
| * | ||
| * \param name Name of the metaclass to create (must be unique) | ||
| * \param id Identifier of the C++ class bound to the metaclass | ||
| * | ||
| * \return Reference to the new metaclass | ||
| * | ||
| * \throw ClassAlreadyCreated \a name or \a id already exists | ||
| */ | ||
| Class& addClass(const std::string& name, const std::string& id); | ||
|
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| /** | ||
| * \brief Get the total number of metaclasses | ||
| * | ||
| * \return Number of metaclasses that have been registered | ||
| */ | ||
| std::size_t count() const; | ||
|
|
||
| /** | ||
| * \brief Get a metaclass from its global index | ||
| * | ||
| * This function, together with ClassManager::count, provides a way to iterate through | ||
| * all the metaclasses that have been declared. | ||
| * | ||
| * \param index Global index of the metaclass to get | ||
| * | ||
| * \return Reference to the index-th metaclass | ||
| * | ||
| * \throw OutOfRange index is out of range | ||
| */ | ||
| const Class& getByIndex(std::size_t index) const; | ||
|
|
||
| /** | ||
| * \brief Get a metaclass from its name | ||
| * | ||
| * \param name Name of the metaclass to retrieve | ||
| * | ||
| * \return Reference to the requested metaclass | ||
| * | ||
| * \throw ClassNotFound name is not the name of an existing metaclass | ||
| */ | ||
| const Class& getByName(const std::string& name) const; | ||
|
|
||
| /** | ||
| * \brief Get a metaclass from a C++ type | ||
| * | ||
| * \param id Identifier of the C++ type | ||
| * | ||
| * \return Reference to the requested metaclass | ||
| * | ||
| * \throw ClassNotFound id is not the name of an existing metaclass | ||
| */ | ||
| const Class& getById(const std::string& id) const; | ||
|
|
||
| /** | ||
| * \brief Get a metaclass from a C++ type | ||
| * | ||
| * This version returns a null pointer if no metaclass is found, instead | ||
| * of throwing an exception. | ||
| * | ||
| * \param id Identifier of the C++ type | ||
| * | ||
| * \return Pointer to the requested metaclass, or 0 if not found | ||
| */ | ||
| const Class* getByIdSafe(const std::string& id) const; | ||
|
|
||
| /** | ||
| * \brief Check if a given type has a metaclass | ||
| * | ||
| * \param id Identifier of the C++ type | ||
| * | ||
| * \return True if the class exists, false otherwise | ||
| */ | ||
| bool classExists(const std::string& id) const; | ||
|
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| private: | ||
|
|
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| /** | ||
| * \brief Default constructor | ||
| */ | ||
| ClassManager(); | ||
|
|
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| /** | ||
| * \brief Destructor | ||
| * | ||
| * The destructor destroys all the registered metaclasses and notifies the observers. | ||
| */ | ||
| ~ClassManager(); | ||
|
|
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| /** | ||
| * \brief Structure gathering a class, its type identifier and its name | ||
| */ | ||
| struct ClassInfo | ||
| { | ||
| std::string id; | ||
| std::string name; | ||
| std::shared_ptr<Class> classPtr; | ||
| }; | ||
|
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| struct Id; | ||
| struct Name; | ||
|
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| typedef boost::multi_index_container<ClassInfo, | ||
| bm::indexed_by<bm::ordered_unique<bm::tag<Id>, bm::member<ClassInfo, std::string, &ClassInfo::id> >, | ||
| bm::ordered_unique<bm::tag<Name>, bm::member<ClassInfo, std::string, &ClassInfo::name> > | ||
| > | ||
| > ClassTable; | ||
|
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| typedef ClassTable::index<Id>::type IdIndex; | ||
| typedef ClassTable::index<Name>::type NameIndex; | ||
|
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| ClassTable m_classes; ///< Table storing classes indexed by their id and name | ||
| }; | ||
|
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| } // namespace detail | ||
|
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| } // namespace camp | ||
|
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| #endif // CAMP_DETAIL_CLASSMANAGER_HPP |
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