001/*
002 * This library is part of OpenCms -
003 * the Open Source Content Management System
004 *
005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * For further information about Alkacon Software, please see the
018 * company website: http://www.alkacon.com
019 *
020 * For further information about OpenCms, please see the
021 * project website: http://www.opencms.org
022 *
023 * You should have received a copy of the GNU Lesser General Public
024 * License along with this library; if not, write to the Free Software
025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
026 */
027
028package org.opencms.loader;
029
030import org.opencms.i18n.I_CmsMessageContainer;
031import org.opencms.json.JSONObject;
032
033import java.util.Locale;
034
035/**
036 * Simple JSON-based message container.<p>
037 *
038 * This message container will accept an Object which may either be a simple string (in which case
039 * this string will always be returned as the message), or a JSONObject which has locale strings as
040 * keys and the corresponding message strings as values.
041 */
042public class CmsJsonMessageContainer implements I_CmsMessageContainer {
043
044    /** The JSON value for this message container. */
045    private Object m_jsonValue;
046
047    /**
048     * Creates a new instance.<p>
049     *
050     * @param jsonValue the JSON value containing the message(s).<p>
051     */
052    public CmsJsonMessageContainer(Object jsonValue) {
053
054        m_jsonValue = jsonValue;
055
056    }
057
058    /**
059     * @see org.opencms.i18n.I_CmsMessageContainer#key(java.util.Locale)
060     */
061    public String key(Locale locale) {
062
063        if (m_jsonValue instanceof String) {
064            return (String)m_jsonValue;
065        } else if (m_jsonValue instanceof JSONObject) {
066            JSONObject localeMap = (JSONObject)m_jsonValue;
067            for (String key : new String[] {
068                locale.toString(),
069                "en",
070                localeMap.keySet().size() > 0 ? (localeMap.keySet().iterator().next()) : ""}) {
071                if (localeMap.has(key)) {
072                    return "" + localeMap.optString(key);
073                }
074            }
075        }
076        return "??? not found ???";
077    }
078}