001package org.cpsolver.coursett.criteria.additional;
002
003import java.util.Collection;
004import java.util.Map;
005
006import org.cpsolver.coursett.model.Lecture;
007import org.cpsolver.coursett.model.Placement;
008import org.cpsolver.ifs.assignment.Assignment;
009import org.cpsolver.ifs.util.DataProperties;
010
011
012/**
013 * Important student hard conflicts. Same as {@link ImportantStudentConflict}, but
014 * only hard student conflicts are counted (between classes that do not have alternatives,
015 * see {@link Lecture#isSingleSection()}). Weighted by Comparator.ImportantHardStudentConflictWeight
016 * parameter.
017 * .  
018 * <br>
019 * 
020 * @version CourseTT 1.3 (University Course Timetabling)<br>
021 *          Copyright (C) 2006 - 2014 Tomas Muller<br>
022 *          <a href="mailto:muller@unitime.org">muller@unitime.org</a><br>
023 *          <a href="http://muller.unitime.org">http://muller.unitime.org</a><br>
024 * <br>
025 *          This library is free software; you can redistribute it and/or modify
026 *          it under the terms of the GNU Lesser General Public License as
027 *          published by the Free Software Foundation; either version 3 of the
028 *          License, or (at your option) any later version. <br>
029 * <br>
030 *          This library is distributed in the hope that it will be useful, but
031 *          WITHOUT ANY WARRANTY; without even the implied warranty of
032 *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
033 *          Lesser General Public License for more details. <br>
034 * <br>
035 *          You should have received a copy of the GNU Lesser General Public
036 *          License along with this library; if not see
037 *          <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>.
038 */
039public class ImportantStudentHardConflict extends ImportantStudentConflict {
040
041    @Override
042    public boolean isApplicable(Lecture l1, Lecture l2) {
043        return l1 != null && l2 != null && !ignore(l1, l2) && hard(l1, l2) && important(l1, l2);
044    }
045
046    @Override
047    public double getWeightDefault(DataProperties config) {
048        return config.getPropertyDouble("Comparator.ImportantHardStudentConflictWeight",
049                3.0 * config.getPropertyDouble("Comparator.HardStudentConflictWeight", 5.0));
050    }
051    
052    @Override
053    public String getPlacementSelectionWeightName() {
054        return "Placement.NrImportantHardStudConfsWeight";
055    }
056    
057    @Override
058    public void getInfo(Assignment<Lecture, Placement> assignment, Map<String, String> info) {
059    }
060    
061    @Override
062    public void getInfo(Assignment<Lecture, Placement> assignment, Map<String, String> info, Collection<Lecture> variables) {
063    }
064}