001 package net.sf.cpsolver.exam.criteria;
002
003 import java.util.Map;
004 import java.util.Set;
005
006 import net.sf.cpsolver.exam.model.Exam;
007 import net.sf.cpsolver.exam.model.ExamInstructor;
008 import net.sf.cpsolver.exam.model.ExamPlacement;
009
010 /**
011 * Number of direct instructor conflicts caused by the fact that an instructor is
012 * not available.
013 * <br><br>
014 * Direct instructor conflict weight can be set by problem property
015 * Exams.InstructorDirectConflictWeight, or in the input xml file, property
016 * instructorDirectConflictWeight.
017 *
018 * <br>
019 *
020 * @version ExamTT 1.2 (Examination Timetabling)<br>
021 * Copyright (C) 2008 - 2012 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 */
039 public class InstructorNotAvailableConflicts extends InstructorDirectConflicts {
040
041 @Override
042 public double getValue(ExamPlacement value, Set<ExamPlacement> conflicts) {
043 Exam exam = value.variable();
044 // if (!exam.isAllowDirectConflicts()) return 0;
045 int penalty = 0;
046 for (ExamInstructor s : exam.getInstructors()) {
047 if (!s.isAvailable(value.getPeriod()))
048 penalty++;
049 }
050 return penalty;
051 }
052
053 @Override
054 public String getName() {
055 return "Instructor Not Available Conflicts";
056 }
057
058 @Override
059 public void getInfo(Map<String, String> info) {
060 }
061
062 @Override
063 public String toString() {
064 return (getValue() <= 0.0 ? "" : "iNA:" + sDoubleFormat.format(getValue()));
065 }
066 }