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+/*
+ * Copyright (C) 2005-2008 MaNGOS <http://www.mangosproject.org/>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef MANGOS_OBJECTREGISTRY_H
+#define MANGOS_OBJECTREGISTRY_H
+
+#include "Platform/Define.h"
+#include "Utilities/HashMap.h"
+#include "Policies/Singleton.h"
+
+#include <string>
+#include <map>
+
+/** ObjectRegistry holds all registry item of the same type
+ */
+template<class T, class Key = std::string>
+class MANGOS_DLL_DECL ObjectRegistry
+{
+ public:
+ typedef std::map<Key, T *> RegistryMapType;
+
+ /// Returns a registry item
+ const T* GetRegistryItem(Key key) const
+ {
+ typename RegistryMapType::const_iterator iter = i_registeredObjects.find(key);
+ return( iter == i_registeredObjects.end() ? NULL : iter->second );
+ }
+
+ /// Inserts a registry item
+ bool InsertItem(T *obj, Key key, bool override = false)
+ {
+ typename RegistryMapType::iterator iter = i_registeredObjects.find(key);
+ if( iter != i_registeredObjects.end() )
+ {
+ if( !override )
+ return false;
+ delete iter->second;
+ i_registeredObjects.erase(iter);
+ }
+
+ i_registeredObjects[key] = obj;
+ return true;
+ }
+
+ /// Removes a registry item
+ void RemoveItem(Key key, bool delete_object = true)
+ {
+ typename RegistryMapType::iterator iter = i_registeredObjects.find(key);
+ if( iter != i_registeredObjects.end() )
+ {
+ if( delete_object )
+ delete iter->second;
+ i_registeredObjects.erase(iter);
+ }
+ }
+
+ /// Returns true if registry contains an item
+ bool HasItem(Key key) const
+ {
+ return (i_registeredObjects.find(key) != i_registeredObjects.end());
+ }
+
+ /// Inefficiently return a vector of registered items
+ unsigned int GetRegisteredItems(std::vector<Key> &l) const
+ {
+ unsigned int sz = l.size();
+ l.resize(sz + i_registeredObjects.size());
+ for(typename RegistryMapType::const_iterator iter = i_registeredObjects.begin(); iter != i_registeredObjects.end(); ++iter)
+ l[sz++] = iter->first;
+ return i_registeredObjects.size();
+ }
+
+ /// Return the map of registered items
+ RegistryMapType const &GetRegisteredItems() const
+ {
+ return i_registeredObjects;
+ }
+
+ private:
+ RegistryMapType i_registeredObjects;
+ friend class MaNGOS::OperatorNew<ObjectRegistry<T, Key> >;
+
+ // protected for friend use since it should be a singleton
+ ObjectRegistry() {}
+ ~ObjectRegistry()
+ {
+ for(typename RegistryMapType::iterator iter=i_registeredObjects.begin(); iter != i_registeredObjects.end(); ++iter)
+ delete iter->second;
+ i_registeredObjects.clear();
+ }
+};
+#endif