/*
* Copyright 2010 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.planner.examples.curriculumcourse.domain.solver;
import org.apache.commons.lang.builder.CompareToBuilder;
import org.drools.planner.api.domain.entity.PlanningEntityDifficultyWeightFactory;
import org.drools.planner.core.solution.Solution;
import org.drools.planner.examples.curriculumcourse.domain.Course;
import org.drools.planner.examples.curriculumcourse.domain.CurriculumCourseSchedule;
import org.drools.planner.examples.curriculumcourse.domain.Lecture;
import org.drools.planner.examples.curriculumcourse.domain.UnavailablePeriodPenalty;
public class LectureDifficultyWeightFactory implements PlanningEntityDifficultyWeightFactory {
public Comparable createDifficultyWeight(Solution solution, Object planningEntity) {
CurriculumCourseSchedule schedule = (CurriculumCourseSchedule) solution;
Lecture lecture = (Lecture) planningEntity;
Course course = lecture.getCourse();
int unavailablePeriodPenaltyCount = 0;
for (UnavailablePeriodPenalty penalty : schedule.getUnavailablePeriodPenaltyList()) {
if (penalty.getCourse().equals(course)) {
unavailablePeriodPenaltyCount++;
}
}
return new LectureDifficultyWeight(lecture, unavailablePeriodPenaltyCount);
}
public static class LectureDifficultyWeight implements Comparable<LectureDifficultyWeight> {
private final Lecture lecture;
private final int unavailablePeriodPenaltyCount;
public LectureDifficultyWeight(Lecture lecture, int unavailablePeriodPenaltyCount) {
this.lecture = lecture;
this.unavailablePeriodPenaltyCount = unavailablePeriodPenaltyCount;
}
public int compareTo(LectureDifficultyWeight other) {
Course course = lecture.getCourse();
Course otherCourse = other.lecture.getCourse();
return new CompareToBuilder()
.append(course.getCurriculumList().size(), otherCourse.getCurriculumList().size())
.append(unavailablePeriodPenaltyCount, other.unavailablePeriodPenaltyCount)
.append(course.getLectureSize(), otherCourse.getLectureSize())
.append(course.getStudentSize(), otherCourse.getStudentSize())
.append(course.getMinWorkingDaySize(), otherCourse.getMinWorkingDaySize())
.append(lecture.getId(), other.lecture.getId())
.toComparison();
}
}
}