001    /**
002     * Copyright (c) 2000-2013 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.portal.freemarker;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    import com.liferay.portal.theme.ThemeLoader;
020    import com.liferay.portal.theme.ThemeLoaderFactory;
021    
022    import java.io.File;
023    import java.io.IOException;
024    
025    import java.net.URL;
026    
027    /**
028     * @author Mika Koivisto
029     */
030    public class ThemeLoaderTemplateLoader extends URLTemplateLoader {
031    
032            @Override
033            public URL getURL(String name) throws IOException {
034                    int pos = name.indexOf(THEME_LOADER_SEPARATOR);
035    
036                    if (pos != -1) {
037                            String ctxName = name.substring(0, pos);
038    
039                            ThemeLoader themeLoader = ThemeLoaderFactory.getThemeLoader(
040                                    ctxName);
041    
042                            if (themeLoader != null) {
043                                    String templateName = name.substring(
044                                            pos + THEME_LOADER_SEPARATOR.length());
045    
046                                    String themesPath = themeLoader.getThemesPath();
047    
048                                    if (templateName.startsWith(themesPath)) {
049                                            name = templateName.substring(themesPath.length());
050                                    }
051    
052                                    if (_log.isDebugEnabled()) {
053                                            _log.debug(
054                                                    name + " is associated with the theme loader " +
055                                                            ctxName + " " + themeLoader);
056                                    }
057    
058                                    File fileStorage = themeLoader.getFileStorage();
059    
060                                    return new File(fileStorage.getPath() + name).toURI().toURL();
061    
062                            }
063                            else {
064                                    _log.error(
065                                            name + " is not valid because " + ctxName +
066                                                    " does not map to a theme loader");
067                            }
068                    }
069    
070                    return null;
071            }
072    
073            private static Log _log = LogFactoryUtil.getLog(
074                    ThemeLoaderTemplateLoader.class);
075    
076    }