    001package org.cpsolver.instructor.criteria;
    002
    003import java.util.Set;
    004
    005import org.cpsolver.ifs.assignment.Assignment;
    006import org.cpsolver.ifs.util.DataProperties;
    007import org.cpsolver.instructor.model.TeachingAssignment;
    008import org.cpsolver.instructor.model.TeachingRequest;
    009
    010/**
    011 * Attribute Preferences. This criterion counts how well are the attribute preferences that are set on a {@link TeachingRequest} met
    012 * (counting {@link TeachingAssignment#getAttributePreference()}).
    013 *
    014 * @author  Tomáš Müller
    015 * @version IFS 1.3 (Instructor Sectioning)<br>
    016 *          Copyright (C) 2016 Tomáš Müller<br>
    017 *          <a href="mailto:muller@unitime.org">muller@unitime.org</a><br>
    018 *          <a href="http://muller.unitime.org">http://muller.unitime.org</a><br>
    019 * <br>
    020 *          This library is free software; you can redistribute it and/or modify
    021 *          it under the terms of the GNU Lesser General Public License as
    022 *          published by the Free Software Foundation; either version 3 of the
    023 *          License, or (at your option) any later version. <br>
    024 * <br>
    025 *          This library is distributed in the hope that it will be useful, but
    026 *          WITHOUT ANY WARRANTY; without even the implied warranty of
    027 *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
    028 *          Lesser General Public License for more details. <br>
    029 * <br>
    030 *          You should have received a copy of the GNU Lesser General Public
    031 *          License along with this library; if not see
    032 *          <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>.
    033 */
    034public class AttributePreferences extends InstructorSchedulingCriterion {
    035
    036    @Override
    037    public double getWeightDefault(DataProperties config) {
    038        return 1000.0;
    039    }
    040
    041    @Override
    042    public double getValue(Assignment<TeachingRequest.Variable, TeachingAssignment> assignment, TeachingAssignment value, Set<TeachingAssignment> conflicts) {
    043        return value.getAttributePreference();
    044    }
    045
    046    @Override
    047    public String getAbbreviation() {
    048        return "AttributePref";
    049    }
    050}