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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 Red Hat, Inc. and/or its affiliates.
*
* 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.common.swingui;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.util.List;
import java.util.Set;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.SwingConstants;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableColumnModel;
import org.optaplanner.core.api.score.Score;
import org.optaplanner.core.api.score.constraint.ConstraintMatch;
import org.optaplanner.core.api.score.constraint.ConstraintMatchTotal;
import org.optaplanner.examples.common.business.SolutionBusiness;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class ConstraintMatchesDialog extends JDialog {
protected final transient Logger logger = LoggerFactory.getLogger(getClass());
protected final SolutionBusiness solutionBusiness;
public ConstraintMatchesDialog(SolverAndPersistenceFrame solverAndPersistenceFrame,
SolutionBusiness solutionBusiness) {
super(solverAndPersistenceFrame, "Constraint matches", true);
this.solutionBusiness = solutionBusiness;
}
public void resetContentPanel() {
JPanel buttonPanel = new JPanel(new FlowLayout());
Action okAction = new AbstractAction("OK") {
@Override
public void actionPerformed(ActionEvent e) {
setVisible(false);
}
};
buttonPanel.add(new JButton(okAction));
if (!solutionBusiness.isConstraintMatchEnabled()) {
JPanel unsupportedPanel = new JPanel(new BorderLayout());
JLabel unsupportedLabel = new JLabel("Constraint matches are not supported with this ScoreDirector.");
unsupportedPanel.add(unsupportedLabel, BorderLayout.CENTER);
unsupportedPanel.add(buttonPanel, BorderLayout.SOUTH);
setContentPane(unsupportedPanel);
} else {
final List constraintMatchTotalList
= solutionBusiness.getConstraintMatchTotalList();
JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
final JTable table = new JTable(new ConstraintMatchTotalTableModel(constraintMatchTotalList));
TableColumnModel columnModel = table.getColumnModel();
columnModel.getColumn(0).setPreferredWidth(300);
columnModel.getColumn(1).setPreferredWidth(80);
columnModel.getColumn(2).setPreferredWidth(80);
columnModel.getColumn(3).setPreferredWidth(80);
DefaultTableCellRenderer rightCellRenderer = new DefaultTableCellRenderer();
rightCellRenderer.setHorizontalAlignment(SwingConstants.RIGHT);
columnModel.getColumn(1).setCellRenderer(rightCellRenderer);
columnModel.getColumn(3).setCellRenderer(rightCellRenderer);
JScrollPane tableScrollPane = new JScrollPane(table);
tableScrollPane.setPreferredSize(new Dimension(700, 300));
splitPane.setTopComponent(tableScrollPane);
JPanel bottomPanel = new JPanel(new BorderLayout());
JLabel detailLabel = new JLabel("Constraint matches of selected constraint type");
detailLabel.setBorder(BorderFactory.createEmptyBorder(2, 2, 2, 2));
bottomPanel.add(detailLabel, BorderLayout.NORTH);
final JTextArea detailTextArea = new JTextArea(10, 80);
JScrollPane detailScrollPane = new JScrollPane(detailTextArea);
bottomPanel.add(detailScrollPane, BorderLayout.CENTER);
table.getSelectionModel().addListSelectionListener(
event -> {
int selectedRow = table.getSelectedRow();
if (selectedRow < 0) {
detailTextArea.setText("");
} else {
ConstraintMatchTotal constraintMatchTotal
= constraintMatchTotalList.get(selectedRow);
detailTextArea.setText(buildConstraintMatchSetText(constraintMatchTotal));
detailTextArea.setCaretPosition(0);
}
}
);
bottomPanel.add(buttonPanel, BorderLayout.SOUTH);
splitPane.setBottomComponent(bottomPanel);
splitPane.setResizeWeight(1.0);
setContentPane(splitPane);
}
pack();
setLocationRelativeTo(getParent());
}
public String buildConstraintMatchSetText(ConstraintMatchTotal constraintMatchTotal) {
Set constraintMatchSet = constraintMatchTotal.getConstraintMatchSet();
StringBuilder text = new StringBuilder(constraintMatchSet.size() * 80);
for (ConstraintMatch constraintMatch : constraintMatchSet) {
text.append(constraintMatch.getJustificationList()).append(" = ")
.append(constraintMatch.getScore().toShortString()).append("\n");
}
return text.toString();
}
public static class ConstraintMatchTotalTableModel extends AbstractTableModel {
private List constraintMatchTotalList;
public ConstraintMatchTotalTableModel(List constraintMatchTotalList) {
this.constraintMatchTotalList = constraintMatchTotalList;
}
@Override
public int getRowCount() {
return constraintMatchTotalList.size();
}
@Override
public int getColumnCount() {
return 4;
}
@Override
public String getColumnName(int columnIndex) {
switch (columnIndex) {
case 0:
return "Constraint name";
case 1:
return "Constraint weight";
case 2:
return "Match count";
case 3:
return "Score";
default:
throw new IllegalStateException("The columnIndex (" + columnIndex + ") is invalid.");
}
}
@Override
public Class getColumnClass(int columnIndex) {
switch (columnIndex) {
case 0:
return String.class;
case 1:
return String.class;
case 2:
return Integer.class;
case 3:
return String.class;
default:
throw new IllegalStateException("The columnIndex (" + columnIndex + ") is invalid.");
}
}
@Override
public Object getValueAt(int rowIndex, int columnIndex) {
ConstraintMatchTotal constraintMatchTotal = constraintMatchTotalList.get(rowIndex);
switch (columnIndex) {
case 0:
return constraintMatchTotal.getConstraintName();
case 1:
Score constraintWeight = constraintMatchTotal.getConstraintWeight();
return constraintWeight == null ? "N/A" : constraintWeight.toShortString();
case 2:
return constraintMatchTotal.getConstraintMatchCount();
case 3:
return constraintMatchTotal.getScore().toShortString();
default:
throw new IllegalStateException("The columnIndex (" + columnIndex + ") is invalid.");
}
}
}
}