mirror of
https://github.com/TrinityCore/TrinityCore.git
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86 lines
2.6 KiB
C++
86 lines
2.6 KiB
C++
/*
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* This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TRINITY_OBJECTREGISTRY_H
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#define TRINITY_OBJECTREGISTRY_H
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#include <string>
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#include <map>
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#include <memory>
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/** ObjectRegistry holds all registry item of the same type
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*/
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template<class T, class Key = std::string>
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class ObjectRegistry final
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{
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public:
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typedef std::map<Key, std::unique_ptr<T>> RegistryMapType;
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static ObjectRegistry<T, Key>* instance()
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{
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static ObjectRegistry<T, Key> instance;
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return &instance;
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}
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/// Returns a registry item
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T const* GetRegistryItem(Key const& key) const
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{
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auto itr = _registeredObjects.find(key);
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if (itr == _registeredObjects.end())
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return nullptr;
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return itr->second.get();
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}
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/// Inserts a registry item
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bool InsertItem(T* obj, Key const& key, bool force = false)
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{
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auto itr = _registeredObjects.find(key);
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if (itr != _registeredObjects.end())
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{
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if (!force)
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return false;
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_registeredObjects.erase(itr);
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}
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_registeredObjects.emplace(std::piecewise_construct, std::forward_as_tuple(key), std::forward_as_tuple(obj));
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return true;
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}
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/// Returns true if registry contains an item
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bool HasItem(Key const& key) const
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{
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return (_registeredObjects.count(key) > 0);
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}
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/// Return the map of registered items
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RegistryMapType const& GetRegisteredItems() const
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{
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return _registeredObjects;
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}
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private:
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RegistryMapType _registeredObjects;
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// non instanceable, only static
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ObjectRegistry() { }
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~ObjectRegistry() { }
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ObjectRegistry(ObjectRegistry const&) = delete;
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ObjectRegistry& operator=(ObjectRegistry const&) = delete;
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};
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#endif
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