mirror of https://github.com/Icinga/icinga2.git
112 lines
3.1 KiB
C++
112 lines
3.1 KiB
C++
/******************************************************************************
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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 COMPONENT_H
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#define COMPONENT_H
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namespace icinga
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{
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/**
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* Interface for application extensions.
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*
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* @ingroup base
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*/
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class I2_BASE_API IComponent : public Object
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{
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public:
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typedef shared_ptr<IComponent> Ptr;
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typedef weak_ptr<IComponent> WeakPtr;
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virtual void Start(void);
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virtual void Stop(void);
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protected:
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DynamicObject::Ptr GetConfig(void) const;
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private:
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DynamicObject::WeakPtr m_Config; /**< The configuration object for this
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component. */
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friend class Component;
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};
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/**
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* An application extension that can be dynamically loaded
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* at run-time.
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*
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* @ingroup base
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*/
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class I2_BASE_API Component : public DynamicObject
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{
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public:
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typedef shared_ptr<Component> Ptr;
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typedef weak_ptr<Component> WeakPtr;
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typedef function<IComponent::Ptr (void)> Factory;
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Component(const Dictionary::Ptr& properties);
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~Component(void);
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virtual void Start(void);
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static void AddSearchDir(const String& componentDirectory);
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static void Register(const String& name, const Factory& factory);
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private:
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IComponent::Ptr m_Impl; /**< The implementation object for this
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component. */
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static map<String, Factory> m_Factories;
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};
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/**
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* Helper class for registering Component implementation classes.
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*
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* @ingroup base
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*/
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class RegisterComponentHelper
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{
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public:
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RegisterComponentHelper(const String& name, const Component::Factory& factory)
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{
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Component::Register(name, factory);
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}
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};
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/**
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* Factory function for IComponent-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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IComponent::Ptr ComponentFactory(void)
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{
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return boost::make_shared<T>();
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}
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#define REGISTER_COMPONENT(name, klass) \
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static RegisterComponentHelper g_RegisterSF_ ## type(name, ComponentFactory<klass>)
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}
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#endif /* COMPONENT_H */
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