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.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.TemplateConstants;
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 Aug??
040     */
041    public class FreeMarkerTemplateTaglibSupportProvider
042            implements TemplateTaglibSupportProvider {
043    
044            @Override
045            public void addTaglibSupport(
046                            Template template, String servletContextName,
047                            PortletRequest portletRequest, PortletResponse portletResponse)
048                    throws Exception {
049    
050                    HttpServletRequest request = PortalUtil.getHttpServletRequest(
051                            portletRequest);
052    
053                    template.prepare(request);
054    
055                    template.put(
056                            "fullTemplatesPath", servletContextName.concat(
057                                    TemplateConstants.SERVLET_SEPARATOR));
058    
059                    ServletConfig servletConfig =
060                            (ServletConfig)portletRequest.getAttribute(
061                                    PortletServlet.PORTLET_SERVLET_CONFIG);
062    
063                    PortletServlet portletServlet = new PortletServlet();
064    
065                    portletServlet.init(servletConfig);
066    
067                    ServletContextHashModel servletContextHashModel =
068                            new ServletContextHashModel(
069                                    portletServlet, ObjectWrapper.DEFAULT_WRAPPER);
070    
071                    template.put("Application", servletContextHashModel);
072    
073                    ServletContext servletContext = ServletContextPool.get(
074                            servletContextName);
075    
076                    TemplateHashModel taglibsFactory =
077                            FreeMarkerTaglibFactoryUtil.createTaglibFactory(servletContext);
078    
079                    template.put("PortletJspTagLibs", taglibsFactory);
080    
081                    HttpServletResponse response = PortalUtil.getHttpServletResponse(
082                            portletResponse);
083    
084                    HttpRequestHashModel httpRequestHashModel = new HttpRequestHashModel(
085                            request, response, ObjectWrapper.DEFAULT_WRAPPER);
086    
087                    template.put("Request", httpRequestHashModel);
088            }
089    
090    }