    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 * @author  Tomáš Müller
    022 * @version CourseTT 1.3 (University Course Timetabling)<br>
    023 *          Copyright (C) 2006 - 2014 Tomáš Müller<br>
    024 *          <a href="mailto:muller@unitime.org">muller@unitime.org</a><br>
    025 *          <a href="http://muller.unitime.org">http://muller.unitime.org</a><br>
    026 * <br>
    027 *          This library is free software; you can redistribute it and/or modify
    028 *          it under the terms of the GNU Lesser General Public License as
    029 *          published by the Free Software Foundation; either version 3 of the
    030 *          License, or (at your option) any later version. <br>
    031 * <br>
    032 *          This library is distributed in the hope that it will be useful, but
    033 *          WITHOUT ANY WARRANTY; without even the implied warranty of
    034 *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    035 *          Lesser General Public License for more details. <br>
    036 * <br>
    037 *          You should have received a copy of the GNU Lesser General Public
    038 *          License along with this library; if not see
    039 *          <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>.
    040 */
    041public class ImportantStudentHardConflict extends ImportantStudentConflict {
    042
    043    @Override
    044    public boolean isApplicable(Lecture l1, Lecture l2) {
    045        return l1 != null && l2 != null && !ignore(l1, l2) && hard(l1, l2) && important(l1, l2);
    046    }
    047
    048    @Override
    049    public boolean isApplicable(Student student, Lecture l1, Lecture l2) {
    050        return l1 != null && l2 != null && !ignore(l1, l2) && hard(l1, l2) && student.getConflictingPriorty(l1, l2) != null;
    051    }
    052
    053    @Override
    054    public double getWeightDefault(DataProperties config) {
    055        return config.getPropertyDouble("Comparator.ImportantHardStudentConflictWeight",
    056                3.0 * config.getPropertyDouble("Comparator.HardStudentConflictWeight", 5.0));
    057    }
    058
    059    @Override
    060    public String getPlacementSelectionWeightName() {
    061        return "Placement.NrImportantHardStudConfsWeight";
    062    }
    063
    064    @Override
    065    public void getInfo(Assignment<Lecture, Placement> assignment, Map<String, String> info) {
    066    }
    067
    068    @Override
    069    public void getInfo(Assignment<Lecture, Placement> assignment, Map<String, String> info, Collection<Lecture> variables) {
    070    }
    071}