001    /**
002     * Copyright (c) 2000-2012 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.util.freemarker;
016    
017    import com.liferay.portal.kernel.servlet.PortletServlet;
018    import com.liferay.portal.kernel.servlet.ServletContextPool;
019    import com.liferay.portal.kernel.template.Template;
020    import com.liferay.portal.kernel.template.TemplateResource;
021    import com.liferay.portal.kernel.template.TemplateTaglibSupportProvider;
022    import com.liferay.portal.util.PortalUtil;
023    
024    import freemarker.ext.servlet.HttpRequestHashModel;
025    import freemarker.ext.servlet.ServletContextHashModel;
026    
027    import freemarker.template.ObjectWrapper;
028    import freemarker.template.TemplateHashModel;
029    
030    import javax.portlet.PortletRequest;
031    import javax.portlet.PortletResponse;
032    
033    import javax.servlet.ServletConfig;
034    import javax.servlet.ServletContext;
035    import javax.servlet.http.HttpServletRequest;
036    import javax.servlet.http.HttpServletResponse;
037    
038    /**
039     * @author Raymond Augé
040     */
041    public class FreeMarkerTemplateTaglibSupportProvider
042            implements TemplateTaglibSupportProvider {
043    
044            public void addTaglibSupport(
045                            Template template, String servletContextName,
046                            PortletRequest portletRequest, PortletResponse portletResponse)
047                    throws Exception {
048    
049                    HttpServletRequest request = PortalUtil.getHttpServletRequest(
050                            portletRequest);
051    
052                    template.prepare(request);
053    
054                    template.put(
055                            "fullTemplatesPath", servletContextName.concat(
056                                    TemplateResource.SERVLET_SEPARATOR));
057    
058                    ServletConfig servletConfig =
059                            (ServletConfig)portletRequest.getAttribute(
060                                    PortletServlet.PORTLET_SERVLET_CONFIG);
061    
062                    PortletServlet portletServlet = new PortletServlet();
063    
064                    portletServlet.init(servletConfig);
065    
066                    ServletContextHashModel servletContextHashModel =
067                            new ServletContextHashModel(
068                                    portletServlet, ObjectWrapper.DEFAULT_WRAPPER);
069    
070                    template.put("Application", servletContextHashModel);
071    
072                    ServletContext servletContext = ServletContextPool.get(
073                            servletContextName);
074    
075                    TemplateHashModel taglibsFactory =
076                            FreeMarkerTaglibFactoryUtil.createTaglibFactory(servletContext);
077    
078                    template.put("PortletJspTagLibs", taglibsFactory);
079    
080                    HttpServletResponse response = PortalUtil.getHttpServletResponse(
081                            portletResponse);
082    
083                    HttpRequestHashModel httpRequestHashModel = new HttpRequestHashModel(
084                            request, response, ObjectWrapper.DEFAULT_WRAPPER);
085    
086                    template.put("Request", httpRequestHashModel);
087            }
088    
089    }