| 1 | /* | 
| 2 | * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved. | 
| 3 | * | 
| 4 | * The University of Notre Dame grants you ("Licensee") a | 
| 5 | * non-exclusive, royalty free, license to use, modify and | 
| 6 | * redistribute this software in source and binary code form, provided | 
| 7 | * that the following conditions are met: | 
| 8 | * | 
| 9 | * 1. Acknowledgement of the program authors must be made in any | 
| 10 | *    publication of scientific results based in part on use of the | 
| 11 | *    program.  An acceptable form of acknowledgement is citation of | 
| 12 | *    the article in which the program was described (Matthew | 
| 13 | *    A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher | 
| 14 | *    J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented | 
| 15 | *    Parallel Simulation Engine for Molecular Dynamics," | 
| 16 | *    J. Comput. Chem. 26, pp. 252-271 (2005)) | 
| 17 | * | 
| 18 | * 2. Redistributions of source code must retain the above copyright | 
| 19 | *    notice, this list of conditions and the following disclaimer. | 
| 20 | * | 
| 21 | * 3. Redistributions in binary form must reproduce the above copyright | 
| 22 | *    notice, this list of conditions and the following disclaimer in the | 
| 23 | *    documentation and/or other materials provided with the | 
| 24 | *    distribution. | 
| 25 | * | 
| 26 | * This software is provided "AS IS," without a warranty of any | 
| 27 | * kind. All express or implied conditions, representations and | 
| 28 | * warranties, including any implied warranty of merchantability, | 
| 29 | * fitness for a particular purpose or non-infringement, are hereby | 
| 30 | * excluded.  The University of Notre Dame and its licensors shall not | 
| 31 | * be liable for any damages suffered by licensee as a result of | 
| 32 | * using, modifying or distributing the software or its | 
| 33 | * derivatives. In no event will the University of Notre Dame or its | 
| 34 | * licensors be liable for any lost revenue, profit or data, or for | 
| 35 | * direct, indirect, special, consequential, incidental or punitive | 
| 36 | * damages, however caused and regardless of the theory of liability, | 
| 37 | * arising out of the use of or inability to use software, even if the | 
| 38 | * University of Notre Dame has been advised of the possibility of | 
| 39 | * such damages. | 
| 40 | */ | 
| 41 |  | 
| 42 | /** | 
| 43 | * @file MinimizerFactory.hpp | 
| 44 | * @author Teng Lin | 
| 45 | * @date 10/24/2004 | 
| 46 | * @version 1.0 | 
| 47 | */ | 
| 48 | #ifndef MINIMIZERS_MINIMIZERFACTORY_HPP | 
| 49 | #define MINIMIZERS_MINIMIZERFACTORY_HPP | 
| 50 | #include <cassert> | 
| 51 | #include <map> | 
| 52 | #include <string> | 
| 53 | #include <vector> | 
| 54 | #include <iostream> | 
| 55 | namespace oopse { | 
| 56 |  | 
| 57 | //forward declaration | 
| 58 | class Minimizer; | 
| 59 | class MinimizerCreator; | 
| 60 | class SimInfo; | 
| 61 | /** | 
| 62 | * @class MinimizerFactory MinimizerFactory.hpp "UseTheForce/MinimizerFactory.hpp" | 
| 63 | * Factory pattern and Singleton Pattern are used to define an interface for creating an Minimizer. | 
| 64 | */ | 
| 65 | class MinimizerFactory { | 
| 66 | public: | 
| 67 |  | 
| 68 | typedef std::map<std::string, MinimizerCreator*> CreatorMapType; | 
| 69 | typedef std::vector<std::string> IdentVectorType; | 
| 70 | typedef std::vector<std::string>::iterator IdentVectorIterator; | 
| 71 |  | 
| 72 | ~MinimizerFactory(); | 
| 73 |  | 
| 74 | /** | 
| 75 | * Returns an instance of Minimizer factory | 
| 76 | * @return an instance of Minimizer factory | 
| 77 | */ | 
| 78 | static MinimizerFactory* getInstance() { | 
| 79 |  | 
| 80 | if (instance_ == NULL) { | 
| 81 | instance_ = new MinimizerFactory(); | 
| 82 | } | 
| 83 | return instance_; | 
| 84 |  | 
| 85 | } | 
| 86 |  | 
| 87 | /** | 
| 88 | * Registers a creator with a type identifier | 
| 89 | * @return true if registration is succeed, otherwise return false | 
| 90 | * @id the identification of the concrete object | 
| 91 | * @creator the object responsible to create the concrete object | 
| 92 | */ | 
| 93 | bool registerMinimizer(MinimizerCreator* creator); | 
| 94 |  | 
| 95 | /** | 
| 96 | * Unregisters the creator for the given type identifier. If the type identifier | 
| 97 | * was previously registered, the function returns true. | 
| 98 | * @return truethe type identifier was previously registered and the creator is removed, | 
| 99 | * otherwise return false | 
| 100 | * @id the identification of the concrete object | 
| 101 | */ | 
| 102 | bool unregisterMinimizer(const std::string& id); | 
| 103 | /** | 
| 104 | * Looks up the type identifier in the internal map. If it is found, it invokes the | 
| 105 | * corresponding creator for the type identifier and returns its result. | 
| 106 | * @return a pointer of the concrete object, return NULL if no creator is registed for | 
| 107 | * creating this concrete object | 
| 108 | * @param id the identification of the concrete object | 
| 109 | */ | 
| 110 | Minimizer* createMinimizer(const std::string& id, SimInfo* info); | 
| 111 |  | 
| 112 | /** | 
| 113 | *  Returns all of the registed  type identifiers | 
| 114 | * @return all of the registed  type identifiers | 
| 115 | */ | 
| 116 | IdentVectorType getIdents(); | 
| 117 |  | 
| 118 | private: | 
| 119 | MinimizerFactory() {} | 
| 120 |  | 
| 121 | static MinimizerFactory* instance_; | 
| 122 | CreatorMapType creatorMap_; | 
| 123 | }; | 
| 124 |  | 
| 125 | /** write out all of the type identifiers to an output stream */ | 
| 126 | std::ostream& operator <<(std::ostream& o, MinimizerFactory& factory); | 
| 127 |  | 
| 128 | }//namespace oopse | 
| 129 | #endif //MINIMIZERS_MINIMIZERFACTORY_HPP | 
| 130 |  |