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108 lines
3.6 KiB
C++
108 lines
3.6 KiB
C++
/*
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* Copyright (C) 2005-2010 MaNGOS <http://getmangos.com/>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef MANGOS_OBJECTREGISTRY_H
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#define MANGOS_OBJECTREGISTRY_H
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#include "Platform/Define.h"
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#include "Utilities/UnorderedMap.h"
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#include "Policies/Singleton.h"
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#include <string>
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#include <vector>
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#include <map>
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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 MANGOS_DLL_DECL ObjectRegistry
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{
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public:
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typedef std::map<Key, T *> RegistryMapType;
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/// Returns a registry item
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const T* GetRegistryItem(Key key) const
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{
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typename RegistryMapType::const_iterator iter = i_registeredObjects.find(key);
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return( iter == i_registeredObjects.end() ? NULL : iter->second );
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}
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/// Inserts a registry item
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bool InsertItem(T *obj, Key key, bool override = false)
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{
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typename RegistryMapType::iterator iter = i_registeredObjects.find(key);
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if( iter != i_registeredObjects.end() )
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{
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if( !override )
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return false;
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delete iter->second;
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i_registeredObjects.erase(iter);
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}
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i_registeredObjects[key] = obj;
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return true;
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}
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/// Removes a registry item
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void RemoveItem(Key key, bool delete_object = true)
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{
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typename RegistryMapType::iterator iter = i_registeredObjects.find(key);
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if( iter != i_registeredObjects.end() )
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{
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if( delete_object )
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delete iter->second;
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i_registeredObjects.erase(iter);
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}
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}
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/// Returns true if registry contains an item
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bool HasItem(Key key) const
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{
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return (i_registeredObjects.find(key) != i_registeredObjects.end());
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}
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/// Inefficiently return a vector of registered items
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unsigned int GetRegisteredItems(std::vector<Key> &l) const
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{
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unsigned int sz = l.size();
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l.resize(sz + i_registeredObjects.size());
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for(typename RegistryMapType::const_iterator iter = i_registeredObjects.begin(); iter != i_registeredObjects.end(); ++iter)
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l[sz++] = iter->first;
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return i_registeredObjects.size();
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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 i_registeredObjects;
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}
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private:
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RegistryMapType i_registeredObjects;
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friend class MaNGOS::OperatorNew<ObjectRegistry<T, Key> >;
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// protected for friend use since it should be a singleton
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ObjectRegistry() {}
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~ObjectRegistry()
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{
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for(typename RegistryMapType::iterator iter=i_registeredObjects.begin(); iter != i_registeredObjects.end(); ++iter)
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delete iter->second;
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i_registeredObjects.clear();
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}
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};
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#endif
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