/*

 * Copyright (c) 2003, Oracle and/or its affiliates. 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package com.sun.imageio.plugins.common;

import java.io.InputStream;

import java.util.PropertyResourceBundle;

import java.net.URL;

/**

 * 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 {

    /**

     * 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(Throwable e) {

            throw new RuntimeException(e); // Chain the exception.

        }

        return (String)bundle.handleGetObject(key);

    }

}