Imported MaNGOS revision 6767 from http://mangos.svn.sourceforge.net/svnroot/mangos/trunk/

src/framework/Dynamic/ObjectRegistry.h

@@ -0,0 +1,107 @@
+/* 
+ * Copyright (C) 2005-2008 MaNGOS <http://getmangos.com/>
+ *
+ * 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