001package org.cpsolver.instructor.criteria; 002 003import java.util.Collection; 004import java.util.Map; 005import java.util.Set; 006 007import org.cpsolver.ifs.assignment.Assignment; 008import org.cpsolver.ifs.model.Variable; 009import org.cpsolver.ifs.solver.Solver; 010import org.cpsolver.ifs.util.DataProperties; 011import org.cpsolver.instructor.model.TeachingAssignment; 012import org.cpsolver.instructor.model.TeachingRequest; 013 014/** 015 * Original Instructor. This criterion penalizes teaching assignments that are not given 016 * to the initial instructor (i.e., {@link TeachingRequest} is not assigned to {@link Variable#getInitialAssignment()}). 017 * 018 * @version IFS 1.3 (Instructor Sectioning)<br> 019 * Copyright (C) 2016 Tomas Muller<br> 020 * <a href="mailto:muller@unitime.org">muller@unitime.org</a><br> 021 * <a href="http://muller.unitime.org">http://muller.unitime.org</a><br> 022 * <br> 023 * This library is free software; you can redistribute it and/or modify 024 * it under the terms of the GNU Lesser General Public License as 025 * published by the Free Software Foundation; either version 3 of the 026 * License, or (at your option) any later version. <br> 027 * <br> 028 * This library is distributed in the hope that it will be useful, but 029 * WITHOUT ANY WARRANTY; without even the implied warranty of 030 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 031 * Lesser General Public License for more details. <br> 032 * <br> 033 * You should have received a copy of the GNU Lesser General Public 034 * License along with this library; if not see 035 * <a href='http://www.gnu.org/licenses/'>http://www.gnu.org/licenses/</a>. 036 */ 037public class OriginalInstructor extends InstructorSchedulingCriterion { 038 private boolean iMPP = false; 039 040 public OriginalInstructor() { 041 } 042 043 @Override 044 public boolean init(Solver<TeachingRequest.Variable, TeachingAssignment> solver) { 045 boolean ret = super.init(solver); 046 iMPP = solver.getProperties().getPropertyBoolean("General.MPP", iMPP); 047 return ret; 048 } 049 050 @Override 051 public double getWeightDefault(DataProperties config) { 052 return 100.0; 053 } 054 055 @Override 056 public double getValue(Assignment<TeachingRequest.Variable, TeachingAssignment> assignment, TeachingAssignment value, Set<TeachingAssignment> conflicts) { 057 if (iMPP && value.variable().getInitialAssignment() != null) { 058 return (value.getInstructor().equals(value.variable().getInitialAssignment().getInstructor()) ? 0.0 : 1.0); 059 } else { 060 return 0.0; 061 } 062 } 063 064 @Override 065 public String getAbbreviation() { 066 return "Original"; 067 } 068 069 @Override 070 public void getInfo(Assignment<TeachingRequest.Variable, TeachingAssignment> assignment, Map<String, String> info) { 071 double val = getValue(assignment); 072 double[] bounds = getBounds(assignment); 073 if (bounds[0] <= val && val <= bounds[1] && bounds[0] < bounds[1]) 074 info.put(getName(), getPerc(val, bounds[0], bounds[1]) + "% (" + sDoubleFormat.format(bounds[1] - val) + ")"); 075 } 076 077 @Override 078 public void getInfo(Assignment<TeachingRequest.Variable, TeachingAssignment> assignment, Map<String, String> info, Collection<TeachingRequest.Variable> variables) { 079 double val = getValue(assignment, variables); 080 double[] bounds = getBounds(assignment, variables); 081 if (bounds[0] <= val && val <= bounds[1] && bounds[0] < bounds[1]) 082 info.put(getName(), getPerc(val, bounds[0], bounds[1]) + "% (" + sDoubleFormat.format(bounds[1] - val) + ")"); 083 } 084}