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package oracle.toplink.essentials.internal.localization;

import java.text.MessageFormat;
import java.util.Locale;
import java.util.ResourceBundle;

/**
 * <p>
 * <b>Purpose</b>: Any TopLink message in Foundation Library & J2EE Integration JARs
 * should be a subclass of this class.
 *
 * Creation date: (7/12/00)
 * @author Shannon Chen
 * @since TOPLink/Java 5.0
 */
public abstract class ToplinkLocalization {

    /**
     * Return the message for the given exception class and error number.
     */
    public static String buildMessage(String localizationClassName, String key, Object[] arguments) {
        String message = key;
        ResourceBundle bundle = null;

        // JDK 1.1 MessageFormat can't handle null arguments
        if (arguments != null) {
            for (int i = 0; i < arguments.length; i++) {
                if (arguments[i] == null) {
                    arguments[i] = "null";
                }
            }
        }

        bundle = ResourceBundle.getBundle("oracle.toplink.essentials.internal.localization.i18n." + localizationClassName + "Resource", Locale.getDefault());

        try {
            message = bundle.getString(key);
        } catch (java.util.MissingResourceException mre) {
            // Found bundle, but couldn't find translation.
            // Get the current language's NoTranslationForThisLocale message.
            bundle = ResourceBundle.getBundle("oracle.toplink.essentials.internal.localization.i18n.ToplinkLocalizationResource", Locale.getDefault());
            String noTranslationMessage = bundle.getString("NoTranslationForThisLocale");

            return MessageFormat.format(message, arguments) + noTranslationMessage;
        }
        return MessageFormat.format(message, arguments);
    }
}