include/EvtGenExternal/EvtExternalGenFactory.hh

0001
0002 /***********************************************************************
0003 * Copyright 1998-2020 CERN for the benefit of the EvtGen authors       *
0004 *                                                                      *
0005 * This file is part of EvtGen.                                         *
0006 *                                                                      *
0007 * EvtGen is free software: you can redistribute it and/or modify       *
0008 * it under the terms of the GNU General Public License as published by *
0009 * the Free Software Foundation, either version 3 of the License, or    *
0010 * (at your option) any later version.                                  *
0011 *                                                                      *
0012 * EvtGen is distributed in the hope that it will be useful,            *
0013 * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
0014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
0015 * GNU General Public License for more details.                         *
0016 *                                                                      *
0017 * You should have received a copy of the GNU General Public License    *
0018 * along with EvtGen.  If not, see <https://www.gnu.org/licenses/>.     *
0019 ***********************************************************************/
0020
0021 #ifndef EVTEXTERNALGENFACTORY_HH
0022 #define EVTEXTERNALGENFACTORY_HH
0023
0024 #include "EvtGenModels/EvtAbsExternalGen.hh"
0025
0026 #include <map>
0027
0028 // Description: A factory type method to create engines for external physics
0029 // generators like Pythia.
0030
0031 class EvtExternalGenFactory {
0032   public:
0033     enum genId
0034     {
0035         PythiaGenId = 0,
0036         PhotosGenId,
0037         TauolaGenId
0038     };
0039
0040     static EvtExternalGenFactory* getInstance();
0041
0042     EvtAbsExternalGen* getGenerator( int genId = 0 );
0043
0044     void initialiseAllGenerators();
0045
0046     void definePythiaGenerator( std::string xmlDir, bool convertPhysCodes,
0047                                 bool useEvtGenRandom = true );
0048     void definePhotosGenerator( std::string photonType = "gamma",
0049                                 bool useEvtGenRandom = true );
0050     void defineTauolaGenerator( bool useEvtGenRandom = true );
0051
0052     //methods to add configuration commands to the pythia generators
0053     //void addPythiaCommand( std::string generator, std::string module, std::string param, std::string value);
0054     //void addPythia6Command(std::string generator, std::string module, std::string param, std::string value);
0055
0056   protected:
0057     EvtExternalGenFactory();
0058     ~EvtExternalGenFactory();
0059
0060     typedef std::map<int, EvtAbsExternalGen*> ExtGenMap;
0061     typedef std::map<int, std::map<std::string, std::vector<std::string>>> ExtGenCommandMap;
0062
0063   private:
0064     EvtExternalGenFactory( const EvtExternalGenFactory& ){};
0065
0066     ExtGenMap _extGenMap;
0067     ExtGenCommandMap _extGenCommandMap;
0068 };
0069
0070 #endif