PropertyReader.java

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package com.proudcase.filehandling;

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

/**
 *
 * @author Michel
 */
public final class PropertyReader {

    protected static ClassLoader getCurrentClassLoader(Object defaultObject) {

        ClassLoader loader = Thread.currentThread().getContextClassLoader();

        if (loader == null) {
            loader = defaultObject.getClass().getClassLoader();
        }

        return loader;
    }

    public static String getMessageResourceString(String bundleName, String key, 
            Object[] params, Locale locale) {

        String text;

        ResourceBundle bundle = ResourceBundle.getBundle(bundleName, locale,
                getCurrentClassLoader(params));

        try {
            text = bundle.getString(key);
        } catch (MissingResourceException e) {
            text = "?? key " + key + " not found ??";
        }

        if (params != null) {
            MessageFormat mf = new MessageFormat(text, locale);
            text = mf.format(params, new StringBuffer(), null).toString();
        }

        return text;
    }
}