60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
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//
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// C++ Implementation: PresetFactoryManager
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//
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// Description:
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//
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//
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// Author: Carmelo Piccione <carmelo.piccione@gmail.com>, (C) 2008
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//
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// Copyright: See COPYING file that comes with this distribution
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//
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//
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#ifndef __PRESET_FACTORY_MANAGER_HPP
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#define __PRESET_FACTORY_MANAGER_HPP
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#include "PresetFactory.hpp"
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/// A simple exception class to strongly type all preset factory related issues
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class PresetFactoryException : public std::exception
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{
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public:
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inline PresetFactoryException(const std::string & message) : _message(message) {}
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virtual ~PresetFactoryException() throw() {}
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const std::string & message() const { return _message; }
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private:
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std::string _message;
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};
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/// A manager of preset factories
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class PresetFactoryManager {
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public:
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PresetFactoryManager();
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~PresetFactoryManager();
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/// Initializes the manager with mesh sizes specified
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/// \param gx the width of the mesh
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/// \param gy the height of the mesh
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/// \note This must be called once before any other methods
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void initialize(int gx, int gy);
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/// Requests a factory given a preset extension type
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/// \param extension a string denoting the preset suffix type
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/// \throws PresetFactoryException if the extension is unhandled
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/// \returns a valid preset factory associated with the extension
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PresetFactory & factory(const std::string & extension);
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/// Tests if an extension has been registered with a factory
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/// \param extension the file name extension to verify
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/// \returns true if a factory exists, false otherwise
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bool extensionHandled(const std::string & extension) const;
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private:
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int _gx, _gy;
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mutable std::map<std::string, PresetFactory *> _factoryMap;
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mutable std::vector<PresetFactory *> _factoryList;
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void registerFactory(const std::string & extension, PresetFactory * factory);
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};
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#endif
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