001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portlet.journal.util;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.kernel.templateparser.BaseTransformerListener;
020    import com.liferay.portal.kernel.util.LocaleUtil;
021    import com.liferay.portal.kernel.util.StringUtil;
022    import com.liferay.portal.kernel.xml.Document;
023    import com.liferay.portal.kernel.xml.Element;
024    
025    import java.util.List;
026    import java.util.Map;
027    
028    /**
029     * @author Raymond Aug??
030     */
031    public class LocaleTransformerListener extends BaseTransformerListener {
032    
033            @Override
034            public String onScript(
035                    String script, Document document, String languageId,
036                    Map<String, String> tokens) {
037    
038                    if (_log.isDebugEnabled()) {
039                            _log.debug("onScript");
040                    }
041    
042                    return StringUtil.replace(script, "@language_id@", languageId);
043            }
044    
045            @Override
046            public Document onXml(
047                    Document document, String languageId, Map<String, String> tokens) {
048    
049                    if (_log.isDebugEnabled()) {
050                            _log.debug("onXml");
051                    }
052    
053                    filterByLanguage(document, languageId);
054    
055                    return document;
056            }
057    
058            protected void filterByLanguage(Document document, String languageId) {
059                    Element rootElement = document.getRootElement();
060    
061                    String defaultLanguageId = LocaleUtil.toLanguageId(
062                            LocaleUtil.getSiteDefault());
063    
064                    String[] availableLocales = StringUtil.split(
065                            rootElement.attributeValue("available-locales", defaultLanguageId));
066    
067                    String defaultLocale = rootElement.attributeValue(
068                            "default-locale", defaultLanguageId);
069    
070                    boolean supportedLocale = false;
071    
072                    for (String availableLocale : availableLocales) {
073                            if (StringUtil.equalsIgnoreCase(availableLocale, languageId)) {
074                                    supportedLocale = true;
075    
076                                    break;
077                            }
078                    }
079    
080                    if (!supportedLocale) {
081                            filterByLanguage(rootElement, defaultLocale, defaultLanguageId);
082                    }
083                    else {
084                            filterByLanguage(rootElement, languageId, defaultLanguageId);
085                    }
086            }
087    
088            protected void filterByLanguage(
089                    Element root, String languageId, String defaultLanguageId) {
090    
091                    Element defaultLanguageElement = null;
092    
093                    boolean hasLanguageIdElement = false;
094    
095                    List<Element> elements = root.elements();
096    
097                    int listIndex = elements.size() - 1;
098    
099                    while (listIndex >= 0) {
100                            Element element = elements.get(listIndex);
101    
102                            String tempLanguageId = element.attributeValue(
103                                    "language-id", languageId);
104    
105                            if (StringUtil.equalsIgnoreCase(tempLanguageId, languageId)) {
106                                    hasLanguageIdElement = true;
107    
108                                    filterByLanguage(element, languageId, defaultLanguageId);
109                            }
110                            else {
111                                    if (StringUtil.equalsIgnoreCase(
112                                                    tempLanguageId, defaultLanguageId)) {
113    
114                                            defaultLanguageElement = element;
115                                    }
116    
117                                    root.remove(element);
118                            }
119    
120                            listIndex--;
121                    }
122    
123                    if (!hasLanguageIdElement && (defaultLanguageElement != null)) {
124                            root.add(defaultLanguageElement);
125    
126                            filterByLanguage(
127                                    defaultLanguageElement, languageId, defaultLanguageId);
128                    }
129            }
130    
131            private static Log _log = LogFactoryUtil.getLog(
132                    LocaleTransformerListener.class);
133    
134    }