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jBiDiB BiDiB Wizard POM
There is a newer version: 2.0.0-M1
package org.bidib.wizard.locale;

import java.net.URL;
import java.text.MessageFormat;
import java.util.MissingResourceException;
import java.util.ResourceBundle;

import javax.swing.ImageIcon;
import javax.swing.JButton;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Helper class for localization.
 * 
 * @author André Schenk
 */
public final class Resources {
    private static final Logger LOGGER = LoggerFactory.getLogger(Resources.class);

    private static Resources resources = new Resources();

    private ResourceBundle properties;

    private static final String WIZARD_PACKAGE = "org.bidib.wizard.";

    private static final int START_POS = WIZARD_PACKAGE.length();

    private Resources() {
        properties = ResourceBundle.getBundle("catalogs/BiDiBWizard_locale");
    }

    private static synchronized Resources getInstance() {
        return resources;
    }

    private static ResourceBundle getResources() {
        return getInstance().properties;
    }

    public static String getString(Class clazz, String key) {
        String result = null;
        ResourceBundle properties = getResources();
        String resourceName = null;
        if (clazz != null) {
            if (clazz.getName().startsWith(WIZARD_PACKAGE)) {
                resourceName = clazz.getName().substring(START_POS) + "." + key;
            }
            else {
                resourceName = clazz.getName() + "." + key;
            }
        }
        else {
            resourceName = key;
        }

        if (properties != null) {
            try {
                result = properties.getString(resourceName);
            }
            catch (MissingResourceException e) {
                result = "<" + resourceName + ">";
            }
        }
        else {
            result = resourceName;
        }
        return result;
    }

    public static String getString(Class clazz, String key, Object[] arguments) {
        String result = null;
        String template = getString(clazz, key);

        if (template != null) {
            result = new MessageFormat(template).format(arguments);
        }
        return result;
    }

    public static JButton makeNavigationButton(String imageName, String toolTipText, String altText) {
        // Look for the image.
        String imgLocation = "/icons/" + imageName;
        URL imageURL = Resources.class.getResource(imgLocation);

        // Create and initialize the button.
        JButton button = new JButton();
        button.setToolTipText(toolTipText);

        if (imageURL != null) { // image found
            button.setIcon(new ImageIcon(imageURL, altText));
        }
        else { // no image found
            button.setText(altText);
            LOGGER.warn("Resource not found: {}", imgLocation);
        }

        return button;
    }

}