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OptaPlanner solves planning problems.
This lightweight, embeddable planning engine implements powerful and scalable algorithms
to optimize business resource scheduling and planning.
This module contains the examples which demonstrate how to use it in a normal Java application.
/*
* 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.optaplanner.examples.examination.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.optaplanner.core.impl.solution.Solution;
import org.optaplanner.examples.common.swingui.SolutionPanel;
import org.optaplanner.examples.common.swingui.TangoColorFactory;
import org.optaplanner.examples.examination.domain.Exam;
import org.optaplanner.examples.examination.domain.Examination;
import org.optaplanner.examples.examination.domain.Period;
import org.optaplanner.examples.examination.domain.Room;
import org.optaplanner.examples.examination.solver.move.PeriodChangeMove;
import org.optaplanner.examples.examination.solver.move.RoomChangeMove;
/**
* TODO this code is highly unoptimized
*/
public class ExaminationPanel extends SolutionPanel {
private static final Color HEADER_COLOR = TangoColorFactory.BUTTER_1;
private GridLayout gridLayout;
public ExaminationPanel() {
gridLayout = new GridLayout(0, 1);
setLayout(gridLayout);
}
private Examination getExamination() {
return (Examination) solutionBusiness.getSolution();
}
public void resetPanel(Solution solution) {
removeAll();
Examination examination = (Examination) solution;
gridLayout.setColumns(examination.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 : examination.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 : examination.getPeriodList()) {
JLabel periodLabel = new JLabel(period.toString() + " " + period.getStartDateTimeString());
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 : examination.getRoomList()) {
PeriodRoomPanel periodRoomPanel = new PeriodRoomPanel();
add(periodRoomPanel);
roomPanelMap.put(room, periodRoomPanel);
}
}
for (Exam exam : examination.getExamList()) {
Period period = exam.getPeriod();
Room room = exam.getRoom();
if (period != null && room != null) {
PeriodRoomPanel periodRoomPanel = periodRoomPanelMap.get(period).get(room);
periodRoomPanel.addExam(exam);
}
}
}
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 addExam(Exam exam) {
JButton button = new JButton(new ExamAction(exam));
add(button);
}
}
private class ExamAction extends AbstractAction {
private Exam exam;
public ExamAction(Exam exam) {
super(exam.getTopic().toString());
this.exam = exam;
}
public void actionPerformed(ActionEvent e) {
JPanel listFieldsPanel = new JPanel(new GridLayout(2, 1));
List periodList = getExamination().getPeriodList();
JComboBox periodListField = new JComboBox(periodList.toArray());
periodListField.setSelectedItem(exam.getPeriod());
listFieldsPanel.add(periodListField);
List roomList = getExamination().getRoomList();
JComboBox roomListField = new JComboBox(roomList.toArray());
roomListField.setSelectedItem(exam.getRoom());
listFieldsPanel.add(roomListField);
int result = JOptionPane.showConfirmDialog(ExaminationPanel.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(exam, toPeriod));
Room toRoom = (Room) roomListField.getSelectedItem();
solutionBusiness.doMove(new RoomChangeMove(exam, toRoom));
solverAndPersistenceFrame.resetScreen();
}
}
}
}