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Drools Planner optimizes automated planning by combining metaheuristic search algorithms with rule
engine powered score calculation. This is the drools-planner-examples module which contains examples on how to use
Drools Planner.
/*
* 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.swingui;
import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.swing.AbstractAction;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import org.drools.planner.core.solution.Solution;
import org.drools.planner.examples.common.swingui.SolutionPanel;
import org.drools.planner.examples.curriculumcourse.domain.CurriculumCourseSchedule;
import org.drools.planner.examples.curriculumcourse.domain.Lecture;
import org.drools.planner.examples.curriculumcourse.domain.Period;
import org.drools.planner.examples.curriculumcourse.domain.Room;
import org.drools.planner.examples.curriculumcourse.solver.move.PeriodChangeMove;
import org.drools.planner.examples.curriculumcourse.solver.move.RoomChangeMove;
/**
* TODO this code is highly unoptimized
*/
public class CurriculumCoursePanel extends SolutionPanel {
private static final Color HEADER_COLOR = Color.YELLOW;
private GridLayout gridLayout;
public CurriculumCoursePanel() {
gridLayout = new GridLayout(0, 1);
setLayout(gridLayout);
}
private CurriculumCourseSchedule getCurriculumCourseSchedule() {
return (CurriculumCourseSchedule) solutionBusiness.getSolution();
}
public void resetPanel(Solution solution) {
removeAll();
CurriculumCourseSchedule schedule = (CurriculumCourseSchedule) solution;
gridLayout.setColumns(schedule.getRoomList().size() + 1);
JLabel headerCornerLabel = new JLabel("Period \\ Room");
headerCornerLabel.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createLineBorder(Color.DARK_GRAY),
BorderFactory.createEmptyBorder(2, 2, 2, 2)));
headerCornerLabel.setBackground(HEADER_COLOR);
headerCornerLabel.setOpaque(true);
add(headerCornerLabel);
for (Room room : schedule.getRoomList()) {
JLabel roomLabel = new JLabel(room.toString());
roomLabel.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createLineBorder(Color.DARK_GRAY),
BorderFactory.createEmptyBorder(2, 2, 2, 2)));
roomLabel.setBackground(HEADER_COLOR);
roomLabel.setOpaque(true);
add(roomLabel);
}
Map> periodRoomPanelMap = new HashMap>();
for (Period period : schedule.getPeriodList()) {
JLabel periodLabel = new JLabel(period.toString());
periodLabel.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createLineBorder(Color.DARK_GRAY),
BorderFactory.createEmptyBorder(2, 2, 2, 2)));
periodLabel.setBackground(HEADER_COLOR);
periodLabel.setOpaque(true);
add(periodLabel);
Map roomPanelMap = new HashMap();
periodRoomPanelMap.put(period, roomPanelMap);
for (Room room : schedule.getRoomList()) {
PeriodRoomPanel periodRoomPanel = new PeriodRoomPanel();
add(periodRoomPanel);
roomPanelMap.put(room, periodRoomPanel);
}
}
for (Lecture lecture : schedule.getLectureList()) {
Period period = lecture.getPeriod();
Room room = lecture.getRoom();
if (period != null && room != null) {
PeriodRoomPanel periodRoomPanel = periodRoomPanelMap.get(period).get(room);
periodRoomPanel.addLecture(lecture);
}
}
}
private class PeriodRoomPanel extends JPanel {
public PeriodRoomPanel() {
super(new GridLayout(0, 1));
setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createLineBorder(Color.DARK_GRAY),
BorderFactory.createEmptyBorder(2, 2, 2, 2)));
}
public void addLecture(Lecture lecture) {
JButton button = new JButton(new ExamAction(lecture));
add(button);
}
}
private class ExamAction extends AbstractAction {
private Lecture lecture;
public ExamAction(Lecture lecture) {
super(lecture.getLabel());
this.lecture = lecture;
}
public void actionPerformed(ActionEvent e) {
JPanel listFieldsPanel = new JPanel(new GridLayout(2, 1));
List periodList = getCurriculumCourseSchedule().getPeriodList();
JComboBox periodListField = new JComboBox(periodList.toArray());
periodListField.setSelectedItem(lecture.getPeriod());
listFieldsPanel.add(periodListField);
List roomList = getCurriculumCourseSchedule().getRoomList();
JComboBox roomListField = new JComboBox(roomList.toArray());
roomListField.setSelectedItem(lecture.getRoom());
listFieldsPanel.add(roomListField);
int result = JOptionPane.showConfirmDialog(CurriculumCoursePanel.this.getRootPane(), listFieldsPanel,
"Select period and room", JOptionPane.OK_CANCEL_OPTION);
if (result == JOptionPane.OK_OPTION) {
Period toPeriod = (Period) periodListField.getSelectedItem();
solutionBusiness.doMove(new PeriodChangeMove(lecture, toPeriod));
Room toRoom = (Room) roomListField.getSelectedItem();
solutionBusiness.doMove(new RoomChangeMove(lecture, toRoom));
solverAndPersistenceFrame.resetScreen();
}
}
}
}