    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.coursett.model.Student;
    009import org.cpsolver.ifs.assignment.Assignment;
    010import org.cpsolver.ifs.util.DataProperties;
    011
    012
    013/**
    014 * Important student hard conflicts. Same as {@link ImportantStudentConflict}, but
    015 * only hard student conflicts are counted (between classes that do not have alternatives,
    016 * see {@link Lecture#isSingleSection()}). Weighted by Comparator.ImportantHardStudentConflictWeight
    017 * parameter.
    018 * .
    019 * <br>
    020 *
    021 * @version CourseTT 1.3 (University Course Timetabling)<br>
    022 *          Copyright (C) 2006 - 2014 Tomáš Müller<br>
    023 *          <a href="mailto:muller@unitime.org">muller@unitime.org</a><br>
    024 *          <a href="http://muller.unitime.org">http://muller.unitime.org</a><br>
    025 * <br>
    026 *          This library is free software; you can redistribute it and/or modify
    027 *          it under the terms of the GNU Lesser General Public License as
    028 *          published by the Free Software Foundation; either version 3 of the
    029 *          License, or (at your option) any later version. <br>
    030 * <br>
    031 *          This library is distributed in the hope that it will be useful, but
    032 *          WITHOUT ANY WARRANTY; without even the implied warranty of
    033 *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    034 *          Lesser General Public License for more details. <br>
    035 * <br>
    036 *          You should have received a copy of the GNU Lesser General Public
    037 *          License along with this library; if not see
    038 *          <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>.
    039 */
    040public class ImportantStudentHardConflict extends ImportantStudentConflict {
    041
    042    @Override
    043    public boolean isApplicable(Lecture l1, Lecture l2) {
    044        return l1 != null && l2 != null && !ignore(l1, l2) && hard(l1, l2) && important(l1, l2);
    045    }
    046
    047    @Override
    048    public boolean isApplicable(Student student, Lecture l1, Lecture l2) {
    049        return l1 != null && l2 != null && !ignore(l1, l2) && hard(l1, l2) && student.getConflictingPriorty(l1, l2) != null;
    050    }
    051
    052    @Override
    053    public double getWeightDefault(DataProperties config) {
    054        return config.getPropertyDouble("Comparator.ImportantHardStudentConflictWeight",
    055                3.0 * config.getPropertyDouble("Comparator.HardStudentConflictWeight", 5.0));
    056    }
    057
    058    @Override
    059    public String getPlacementSelectionWeightName() {
    060        return "Placement.NrImportantHardStudConfsWeight";
    061    }
    062
    063    @Override
    064    public void getInfo(Assignment<Lecture, Placement> assignment, Map<String, String> info) {
    065    }
    066
    067    @Override
    068    public void getInfo(Assignment<Lecture, Placement> assignment, Map<String, String> info, Collection<Lecture> variables) {
    069    }
    070}