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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.

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package org.optaplanner.examples.common.swingui;

import java.awt.Desktop;
import java.awt.event.ActionEvent;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;

import javax.swing.AbstractAction;
import javax.swing.JOptionPane;

public final class OpenBrowserAction extends AbstractAction {

    private final URI uri;

    public OpenBrowserAction(String title, String urlString) {
        super(title);
        try {
            uri = new URI(urlString);
        } catch (URISyntaxException e) {
            throw new IllegalStateException("Failed creating URI for urlString (" + urlString + ").", e);
        }
    }

    @Override
    public void actionPerformed(ActionEvent event) {
        Desktop desktop = Desktop.isDesktopSupported() ? Desktop.getDesktop() : null;
        if (desktop == null || !desktop.isSupported(Desktop.Action.BROWSE)) {
            JOptionPane.showMessageDialog(null, "Cannot open a browser automatically."
                    + "\nPlease open this url manually:\n" + uri.toString(),
                    "Cannot open browser", JOptionPane.INFORMATION_MESSAGE);
            return;
        }
        try {
            desktop.browse(uri);
        } catch (IOException e) {
            throw new IllegalStateException("Failed showing uri (" + uri + ") in the default browser.", e);
        }
    }

}