mirror of https://github.com/Icinga/icinga2.git
111 lines
3.9 KiB
C
111 lines
3.9 KiB
C
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/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (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 Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#ifndef DYNAMICTYPE_H
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#define DYNAMICTYPE_H
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namespace icinga
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{
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struct AttributeDescription
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{
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String Name;
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DynamicAttributeType Type;
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};
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class I2_BASE_API DynamicType : public Object
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{
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public:
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typedef shared_ptr<DynamicType> Ptr;
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typedef weak_ptr<DynamicType> WeakPtr;
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typedef function<DynamicObject::Ptr (const Dictionary::Ptr&)> ObjectFactory;
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typedef map<String, DynamicType::Ptr, string_iless> TypeMap;
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typedef map<String, DynamicObject::Ptr, string_iless> NameMap;
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DynamicType(const String& name, const ObjectFactory& factory);
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String GetName(void) const;
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static DynamicType::Ptr GetByName(const String& name);
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static void RegisterType(const DynamicType::Ptr& type);
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static bool TypeExists(const String& name);
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DynamicObject::Ptr CreateObject(const Dictionary::Ptr& serializedUpdate) const;
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DynamicObject::Ptr GetObject(const String& name) const;
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void RegisterObject(const DynamicObject::Ptr& object);
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void UnregisterObject(const DynamicObject::Ptr& object);
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static TypeMap& GetTypes(void);
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NameMap& GetObjects(void);
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void AddAttribute(const String& name, DynamicAttributeType type);
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void RemoveAttribute(const String& name);
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void AddAttributes(const AttributeDescription *attributes, int attributeCount);
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private:
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String m_Name;
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ObjectFactory m_ObjectFactory;
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map<String, DynamicAttributeType> m_Attributes;
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NameMap m_Objects;
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};
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/**
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* Helper class for registering DynamicObject implementation classes.
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*
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* @ingroup base
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*/
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class RegisterTypeHelper
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{
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public:
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RegisterTypeHelper(const String& name, const DynamicType::ObjectFactory& factory, const AttributeDescription* attributes, int attributeCount)
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{
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if (!DynamicType::TypeExists(name)) {
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DynamicType::Ptr type = boost::make_shared<DynamicType>(name, factory);
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type->AddAttributes(attributes, attributeCount);
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DynamicType::RegisterType(type);
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}
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}
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};
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/**
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* Factory function for DynamicObject-based classes.
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*
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* @ingroup base
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*/
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template<typename T>
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shared_ptr<T> DynamicObjectFactory(const Dictionary::Ptr& serializedUpdate)
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{
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return boost::make_shared<T>(serializedUpdate);
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}
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#define REGISTER_TYPE_ALIAS(type, alias, attributeDesc) \
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static RegisterTypeHelper g_Register ## type(alias, DynamicObjectFactory<type>, attributeDesc, (attributeDesc == NULL) ? 0 : sizeof(attributeDesc) / sizeof((static_cast<AttributeDescription *>(attributeDesc))[0]))
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#define REGISTER_TYPE(type, attributeDesc) \
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REGISTER_TYPE_ALIAS(type, #type, attributeDesc)
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}
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#endif /* DYNAMICTYPE_H */
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