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136 lines
4.1 KiB
C++
136 lines
4.1 KiB
C++
/***************************************************************************
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* Copyright (C) gempa GmbH *
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* All rights reserved. *
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* Contact: gempa GmbH (seiscomp-dev@gempa.de) *
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* *
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* GNU Affero General Public License Usage *
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* This file may be used under the terms of the GNU Affero *
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* Public License version 3.0 as published by the Free Software Foundation *
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* and appearing in the file LICENSE included in the packaging of this *
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* file. Please review the following information to ensure the GNU Affero *
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* Public License version 3.0 requirements will be met: *
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* https://www.gnu.org/licenses/agpl-3.0.html. *
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* *
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* Other Usage *
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* Alternatively, this file may be used in accordance with the terms and *
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* conditions contained in a signed written agreement between you and *
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* gempa GmbH. *
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***************************************************************************/
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#ifndef SEISCOMP_CORE_INTERFACEFACTORY_H
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#define SEISCOMP_CORE_INTERFACEFACTORY_H
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#include <map>
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#include <vector>
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#include <string>
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namespace Seiscomp {
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namespace Core {
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namespace Generic {
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// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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/** \brief Template based service factory interface
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To create an object, use the following code
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\code
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InterfaceFactory::Create(servicename);
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\endcode
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*/
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template <typename T>
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class InterfaceFactoryInterface {
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public:
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typedef T Interface;
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typedef std::vector<InterfaceFactoryInterface<T>*> ServicePool;
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typedef std::vector<std::string> ServiceNames;
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protected:
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InterfaceFactoryInterface() {}
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InterfaceFactoryInterface(const char* serviceName);
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public:
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virtual ~InterfaceFactoryInterface();
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public:
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static T* Create(const char* serviceName);
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static T* Create(const std::string &serviceName);
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static unsigned int ServiceCount();
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static ServiceNames* Services();
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static InterfaceFactoryInterface* Find(const char* serviceName);
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const char* serviceName() const;
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virtual Interface* create() const = 0;
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private:
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static bool RegisterFactory(InterfaceFactoryInterface* factory);
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static bool UnregisterFactory(InterfaceFactoryInterface* factory);
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static ServicePool &Pool();
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private:
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std::string _serviceName;
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};
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#define DEFINE_INTERFACE_FACTORY(Class) \
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typedef Seiscomp::Core::Generic::InterfaceFactoryInterface<Class> Class##Factory
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#define DEFINE_TEMPLATE_INTERFACE_FACTORY(Class) \
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template <typename T> \
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struct Class##Factory : Seiscomp::Core::Generic::InterfaceFactoryInterface< Class<T> > {}
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#define IMPLEMENT_INTERFACE_FACTORY(Class, APIDef) \
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template class APIDef Seiscomp::Core::Generic::InterfaceFactoryInterface<Class>
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// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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/** \brief Template based service factory
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*/
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template <typename T, typename TYPE>
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class InterfaceFactory : public InterfaceFactoryInterface<T> {
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public:
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//! The type that represents the actual polymorphic class.
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typedef TYPE Type;
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public:
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InterfaceFactory(const char* serviceName)
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: InterfaceFactoryInterface<T>(serviceName) {}
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public:
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//! The actual creation
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typename InterfaceFactoryInterface<T>::Interface* create() const { return new TYPE; }
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};
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// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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#define DECLARE_INTERFACEFACTORY_FRIEND(Interface, Class) \
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friend class Seiscomp::Core::Generic::InterfaceFactory<Interface, Class>
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// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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}
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}
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}
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#endif
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