GaudiPluginService/Gaudi/PluginServiceV1.h

0001 #ifndef GAUDIPLUGINSERVICE_GAUDI_PLUGINSERVICEV1_H
0002 #define GAUDIPLUGINSERVICE_GAUDI_PLUGINSERVICEV1_H
0003 /*****************************************************************************\
0004 * (c) Copyright 2013 CERN                                                     *
0005 *                                                                             *
0006 * This software is distributed under the terms of the GNU General Public      *
0007 * Licence version 3 (GPL Version 3), copied verbatim in the file "LICENCE".   *
0008 *                                                                             *
0009 * In applying this licence, CERN does not waive the privileges and immunities *
0010 * granted to it by virtue of its status as an Intergovernmental Organization  *
0011 * or submit itself to any jurisdiction.                                       *
0012 \*****************************************************************************/
0013
0014 /// @author Marco Clemencic <marco.clemencic@cern.ch>
0015 /// @see @ref GaudiPluginService-readme
0016
0017 #include <Gaudi/Details/PluginServiceDetailsV1.h>
0018 #include <string>
0019 #include <typeinfo>
0020 #include <utility>
0021
0022 #define _PS_V1_DECLARE_FACTORY_WITH_ID( type, id, factory )                                                            \
0023   _PS_V1_INTERNAL_DECLARE_FACTORY( type, id, factory, __LINE__ )
0024
0025 #define _PS_V1_DECLARE_FACTORY( type, factory )                                                                        \
0026   _PS_V1_DECLARE_FACTORY_WITH_ID( type, ::Gaudi::PluginService::v1::Details::demangle<type>(), factory )
0027
0028 #define _PS_V1_DECLARE_FACTORY_WITH_CREATOR_AND_ID( type, typecreator, id, factory )                                   \
0029   _PS_V1_INTERNAL_DECLARE_FACTORY_WITH_CREATOR( type, typecreator, id, factory, __LINE__ )
0030
0031 #define _PS_V1_DECLARE_FACTORY_WITH_CREATOR( type, typecreator, factory )                                              \
0032   _PS_V1_DECLARE_FACTORY_WITH_CREATOR_AND_ID( type, typecreator,                                                       \
0033                                               ::Gaudi::PluginService::v1::Details::demangle<type>(), factory )
0034
0035 #define _PS_V1_DECLARE_COMPONENT( type ) _PS_V1_DECLARE_FACTORY( type, type::Factory )
0036
0037 #define _PS_V1_DECLARE_COMPONENT_WITH_ID( type, id ) _PS_V1_DECLARE_FACTORY_WITH_ID( type, id, type::Factory )
0038
0039 #if !GAUDI_PLUGIN_SERVICE_USE_V2
0040 #  define DECLARE_FACTORY_WITH_ID( type, id, factory ) _PS_V1_DECLARE_FACTORY_WITH_ID( type, id, factory )
0041 #  define DECLARE_FACTORY( type, factory ) _PS_V1_DECLARE_FACTORY( type, factory )
0042 #  define DECLARE_FACTORY_WITH_CREATOR_AND_ID( type, typecreator, id, factory )                                        \
0043     _PS_V1_DECLARE_FACTORY_WITH_CREATOR_AND_ID( type, typecreator, id, factory )
0044 #  define DECLARE_FACTORY_WITH_CREATOR( type, typecreator, factory )                                                   \
0045     _PS_V1_DECLARE_FACTORY_WITH_CREATOR( type, typecreator, factory )
0046 #  define DECLARE_COMPONENT( type ) _PS_V1_DECLARE_COMPONENT( type )
0047 #  define DECLARE_COMPONENT_WITH_ID( type, id ) _PS_V1_DECLARE_COMPONENT_WITH_ID( type, id )
0048 #endif
0049
0050 namespace Gaudi {
0051   namespace PluginService {
0052     GAUDI_PLUGIN_SERVICE_V1_INLINE namespace v1 {
0053       /// Class wrapping the signature for a factory with any number of arguments.
0054       template <typename R, typename... Args>
0055       class Factory {
0056       public:
0057         typedef R ReturnType;
0058         typedef R ( *FuncType )( Args&&... );
0059
0060         static ReturnType create( const std::string& id, Args... args ) {
0061           const FuncType c = Details::getCreator<FuncType>( id );
0062           return c ? ( *c )( std::forward<Args>( args )... ) : 0;
0063         }
0064
0065         template <typename T>
0066         static ReturnType create( const T& id, Args... args ) {
0067           std::ostringstream o;
0068           o << id;
0069           return create( o.str(), std::forward<Args>( args )... );
0070         }
0071       };
0072
0073       class GAUDIPS_EXPORT Exception : public std::exception {
0074       public:
0075         Exception( std::string msg );
0076         ~Exception() throw() override;
0077         const char* what() const throw() override;
0078
0079       private:
0080         std::string m_msg;
0081       };
0082     }
0083   } // namespace PluginService
0084 } // namespace Gaudi
0085
0086 #endif // GAUDIPLUGINSERVICE_GAUDI_PLUGINSERVICEV1_H