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SolverAPI.cpp

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00001 /*
00002     Copyright (c) 2005, Quentin Lequy and Romain Gaucher
00003     All rights reserved.
00004 
00005     Redistribution and use in source and binary forms, with or 
00006     without modification, are permitted provided that the following 
00007     conditions are met:
00008 
00009         * Redistributions of source code must retain the above copyright 
00010           notice, this list of conditions and the following disclaimer.
00011 
00012         * Redistributions in binary form must reproduce the above copyright 
00013           notice, this list of conditions and the following disclaimer in the 
00014           documentation and/or other materials provided with the distribution.
00015 
00016         * Neither the name of Quentin Lequy or Romain Gaucher nor the names 
00017           of its contributors may be used to endorse or promote products 
00018           derived from this software without specific prior written permission.
00019 
00020     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
00021     AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
00022     IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
00023     ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
00024     LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
00025     DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
00026     SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 
00027     AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
00028     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
00029     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00030 */
00031 
00032 #include "Model.h"
00033 #include "Utils.h"
00034 #include "System.h"
00035 
00036 // Les différents solveurs implémentés
00037 #include "GlpkSolver.h"
00038 #include "CplexSolver.h"
00039 
00040 #include <iostream>
00041 #include <stdexcept>
00042 
00043 namespace Modelib {
00044 
00045 
00046 using namespace std;
00047 
00051 void SolverAPI::AllocSolver(const SolverName api)
00052 {
00053     switch(api)
00054     {
00055         case GLPK|GLPSOL: 
00056             solver = new GlpkSolver(); 
00057             break;
00058         
00059         case CPLEX:
00060             solver = new CplexSolver();
00061             break;
00062 
00063         default:
00064             solver = 0;
00065             throw "(SolverAPI::AllocSolver) - Allocation impossible, solveur inconnu";
00066             break;
00067     }
00068 }
00069 
00070 
00076 SolverAPI::SolverAPI(const SolverName api)
00077   : apiSolver(api), solver(0)
00078 {
00079     fileLP = "temp.lp";
00080     try {
00081         AllocSolver(api);
00082     }
00083     catch (string& e) {
00084         cout << e << endl;
00085     }
00086 }
00087 
00091 SolverAPI::~SolverAPI()
00092 {
00093     if (solver) delete solver;
00094 }
00095 
00102 void SolverAPI::Init(const std::string& tempFile, const std::string& _path)
00103 {
00104     assert(solver);
00105     fileLP = tempFile;
00106     path   = _path;
00107 }
00108 
00117 void SolverAPI::Init(const SolverName api, const std::string& tempFile, const std::string& _path)
00118 {
00119     SetAPI(api);
00120     fileLP = tempFile;
00121     path   = _path;
00122 }
00123 
00127 void SolverAPI::SetAPI(const SolverName api)
00128 {
00129     solution.Clear();
00130     if (apiSolver != api)
00131     {
00132         apiSolver = api;
00133         delete solver;
00134         try {
00135             AllocSolver(api);
00136         }
00137         catch (string& e)
00138         {
00139             cout << e << endl;
00140         }
00141     }
00142 }
00143 
00144 }

Généré le Sun Oct 2 19:13:12 2005 pour Modelib par  doxygen 1.4.4