/*
 * Copyright 2003 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package org.exoplatform.imageio.plugins.common;

import java.io.IOException;
import java.io.InputStream;
import java.util.PropertyResourceBundle;

import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;

/**
 * version: openjdk-7-ea-src-b35-11_sep_2008
 *
 * Class to simplify use of internationalization message strings.
 * Property files are constructed in terms of content as for JAI with
 * one "key=value" pair per line. All such files however have the same
 * name "properties". The resource extractor resolves the extraction of
 * the file from the jar as the package name is included automatically.
 *
 * <p>Extenders need only provide a static method
 * <code>getString(String)</code> which calls the static method in this
 * class with the name of the invoking class and returns a
 * <code>String</code>.
 */
public class I18NImpl {

  private static final Log LOG = ExoLogger.getLogger(I18NImpl.class);

  /**
   * Returns the message string with the specified key from the "properties"
   * file in the package containing the class with the specified name.
   */
  protected static final String getString(String className, String resource_name, String key) {
    PropertyResourceBundle bundle = null;
    try {
      InputStream stream = Class.forName(className).getResourceAsStream(resource_name);
      bundle = new PropertyResourceBundle(stream);
    } catch (ClassNotFoundException e) {
      LOG.error("ClassNotFoundException: ", e);
    } catch (IOException e) {
      LOG.error("IOException: ", e);
    }

    return (String) bundle.handleGetObject(key);
  }
}
