001    package net.sf.cpsolver.coursett.criteria.additional;
002    
003    import java.util.Collection;
004    import java.util.Map;
005    
006    import net.sf.cpsolver.coursett.model.Lecture;
007    import net.sf.cpsolver.ifs.util.DataProperties;
008    
009    /**
010     * Important student hard conflicts. Same as {@link ImportantStudentConflict}, but
011     * only hard student conflicts are counted (between classes that do not have alternatives,
012     * see {@link Lecture#isSingleSection()}). Weighted by Comparator.ImportantHardStudentConflictWeight
013     * parameter.
014     * .  
015     * <br>
016     * 
017     * @version CourseTT 1.2 (University Course Timetabling)<br>
018     *          Copyright (C) 2006 - 2011 Tomas Muller<br>
019     *          <a href="mailto:muller@unitime.org">muller@unitime.org</a><br>
020     *          <a href="http://muller.unitime.org">http://muller.unitime.org</a><br>
021     * <br>
022     *          This library is free software; you can redistribute it and/or modify
023     *          it under the terms of the GNU Lesser General Public License as
024     *          published by the Free Software Foundation; either version 3 of the
025     *          License, or (at your option) any later version. <br>
026     * <br>
027     *          This library is distributed in the hope that it will be useful, but
028     *          WITHOUT ANY WARRANTY; without even the implied warranty of
029     *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
030     *          Lesser General Public License for more details. <br>
031     * <br>
032     *          You should have received a copy of the GNU Lesser General Public
033     *          License along with this library; if not see
034     *          <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>.
035     */
036    public class ImportantStudentHardConflict extends ImportantStudentConflict {
037    
038        @Override
039        public boolean isApplicable(Lecture l1, Lecture l2) {
040            return super.isApplicable(l1, l2) && hard(l1, l2);
041        }
042    
043        @Override
044        public double getWeightDefault(DataProperties config) {
045            return config.getPropertyDouble("Comparator.ImportantHardStudentConflictWeight",
046                    3.0 * config.getPropertyDouble("Comparator.HardStudentConflictWeight", 5.0));
047        }
048        
049        @Override
050        public String getPlacementSelectionWeightName() {
051            return "Placement.NrImportantHardStudConfsWeight";
052        }
053        
054        @Override
055        public void getInfo(Map<String, String> info) {
056        }
057        
058        @Override
059        public void getInfo(Map<String, String> info, Collection<Lecture> variables) {
060        }
061    }