001package org.cpsolver.studentsct;
002
003import java.io.File;
004
005import org.cpsolver.ifs.assignment.Assignment;
006import org.cpsolver.ifs.assignment.DefaultSingleAssignment;
007import org.cpsolver.ifs.solution.Solution;
008import org.cpsolver.ifs.solver.Solver;
009import org.cpsolver.ifs.util.DataProperties;
010import org.cpsolver.ifs.util.ToolBox;
011import org.cpsolver.studentsct.model.Enrollment;
012import org.cpsolver.studentsct.model.Request;
013import org.cpsolver.studentsct.model.Student;
014
015
016/**
017 * A simple class that converts a solution (with real students) into an empty solution with
018 * expectations computed based on the assignments. It has two parameters, the input solution
019 * (XML file) and the output solution (also an XML file).
020 * <br>
021 * <br>
022 * 
023 * @author  Tomáš Müller
024 * @version StudentSct 1.3 (Student Sectioning)<br>
025 *          Copyright (C) 2013 - 2014 Tomáš Müller<br>
026 *          <a href="mailto:muller@unitime.org">muller@unitime.org</a><br>
027 *          <a href="http://muller.unitime.org">http://muller.unitime.org</a><br>
028 * <br>
029 *          This library is free software; you can redistribute it and/or modify
030 *          it under the terms of the GNU Lesser General Public License as
031 *          published by the Free Software Foundation; either version 3 of the
032 *          License, or (at your option) any later version. <br>
033 * <br>
034 *          This library is distributed in the hope that it will be useful, but
035 *          WITHOUT ANY WARRANTY; without even the implied warranty of
036 *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
037 *          Lesser General Public License for more details. <br>
038 * <br>
039 *          You should have received a copy of the GNU Lesser General Public
040 *          License along with this library; if not see
041 *          <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>.
042 */
043
044public class Solution2Expectations {
045    private static org.apache.logging.log4j.Logger sLog = org.apache.logging.log4j.LogManager.getLogger(Solution2Expectations.class);
046    
047    public static void main(String[] args) {
048        try {
049            ToolBox.configureLogging();
050            
051            DataProperties config = new DataProperties();
052            
053            String command = args[0];
054            if ("real2exp".equals(command)) {
055                StudentSectioningModel model = new StudentSectioningModel(config);
056                Assignment<Request, Enrollment> assignment = new DefaultSingleAssignment<Request, Enrollment>();
057                StudentSectioningXMLLoader loader = new StudentSectioningXMLLoader(model, assignment);
058                loader.setInputFile(new File(args[1]));
059                loader.load();
060                
061                sLog.info("Loaded: " + ToolBox.dict2string(model.getExtendedInfo(assignment), 2));
062                
063                for (Student s: model.getStudents()) s.setDummy(true);
064                model.computeOnlineSectioningInfos(assignment);
065                for (Student s: model.getStudents()) s.setDummy(false);
066                for (Request request: model.variables())
067                    assignment.unassign(0, request);
068                
069                Solution<Request, Enrollment> solution = new Solution<Request, Enrollment>(model, assignment, 0, 0);
070                Solver<Request, Enrollment> solver = new Solver<Request, Enrollment>(config);
071                solver.setInitalSolution(solution);
072                new StudentSectioningXMLSaver(solver).save(new File(args[2]));
073                
074                sLog.info("Saved: " + ToolBox.dict2string(model.getExtendedInfo(assignment), 2));                
075            } else if ("ll2exp".equals(command)) {
076                StudentSectioningModel model = new StudentSectioningModel(config);
077                Assignment<Request, Enrollment> assignment = new DefaultSingleAssignment<Request, Enrollment>();
078                StudentSectioningXMLLoader loader = new StudentSectioningXMLLoader(model, assignment);
079                loader.setInputFile(new File(args[1]));
080                loader.load();
081                
082                sLog.info("Loaded: " + ToolBox.dict2string(model.getExtendedInfo(assignment), 2));
083                
084                model.computeOnlineSectioningInfos(assignment);
085                for (Request request: model.variables())
086                    assignment.unassign(0, request);
087                
088                Solution<Request, Enrollment> solution = new Solution<Request, Enrollment>(model, assignment, 0, 0);
089                Solver<Request, Enrollment> solver = new Solver<Request, Enrollment>(config);
090                solver.setInitalSolution(solution);
091                new StudentSectioningXMLSaver(solver).save(new File(args[2]));
092                
093                sLog.info("Saved: " + ToolBox.dict2string(model.getExtendedInfo(assignment), 2));    
094            } else if ("students".equals(command)) {
095                StudentSectioningModel model = new StudentSectioningModel(config);
096                Assignment<Request, Enrollment> assignment = new DefaultSingleAssignment<Request, Enrollment>();
097                StudentSectioningXMLLoader loader = new StudentSectioningXMLLoader(model, assignment);
098                loader.setInputFile(new File(args[1]));
099                loader.setLoadStudents(false);
100                loader.load();
101                
102                sLog.info("Loaded [1]: " + ToolBox.dict2string(model.getExtendedInfo(assignment), 2));
103
104                StudentSectioningXMLLoader loder2 = new StudentSectioningXMLLoader(model, assignment);
105                loder2.setInputFile(new File(args[2]));
106                loder2.setLoadOfferings(false);
107                loder2.setLoadStudents(true);
108                loder2.load();
109                
110                sLog.info("Loaded [2]: " + ToolBox.dict2string(model.getExtendedInfo(assignment), 2));
111
112                Solution<Request, Enrollment> solution = new Solution<Request, Enrollment>(model, assignment, 0, 0);
113                Solver<Request, Enrollment> solver = new Solver<Request, Enrollment>(config);
114                solver.setInitalSolution(solution);
115                new StudentSectioningXMLSaver(solver).save(new File(args[3]));
116                
117                sLog.info("Saved [3]: " + ToolBox.dict2string(model.getExtendedInfo(assignment), 2));
118            } else {
119                sLog.error("Unknown command: " + command);
120            }
121        } catch (Exception e) {
122            sLog.error(e.getMessage(), e);
123        }
124    }
125
126}