1 /**
2 * This file Copyright (c) 2003-2011 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.rendering.renderer;
35
36 import info.magnolia.cms.util.ServletUtils;
37 import info.magnolia.context.MgnlContext;
38 import info.magnolia.context.WebContext;
39 import info.magnolia.rendering.context.RenderingContext;
40 import info.magnolia.rendering.engine.RenderException;
41 import info.magnolia.rendering.template.RenderableDefinition;
42
43 import java.util.Map;
44
45 import javax.jcr.Node;
46 import javax.servlet.http.HttpServletRequest;
47 import javax.servlet.http.HttpServletResponse;
48
49 /**
50 * Renders templates by dispatching to the servlet container.
51 *
52 * @version $Id$
53 */
54 public class JspRenderer extends AbstractRenderer {
55
56 @Override
57 protected void onRender(Node content, RenderableDefinition definition, RenderingContext renderingCtx, Map<String, Object> ctx, String templateScript) throws RenderException {
58 HttpServletRequest request = ((WebContext) MgnlContext.getInstance()).getRequest();
59 HttpServletResponse response = ((WebContext) MgnlContext.getInstance()).getResponse();
60 try {
61 if (response.isCommitted() || (ServletUtils.isForward(request) || ServletUtils.isInclude(request))) {
62 ((WebContext) ctx).include(templateScript, renderingCtx.getAppendable());
63 } else {
64
65 // we can't do an include() because the called template might want to set cookies or call response.sendRedirect()
66 request.getRequestDispatcher(templateScript).forward(request, response);
67 }
68 } catch (Exception e) {
69 throw new RenderException("Can't render template " + templateScript, e);
70 }
71 }
72
73 // TODO this is copied from the old rendering, need to go or be adapted
74 /**
75 * We expose nodes as Map instances in JSPs.
76 *
77 @Override
78 protected Node wrapNodeForTemplate(Node currentContent, Node mainContent) {
79 final Node wrapped = super.wrapNodeForTemplate(currentContent, mainContent);
80 return new NodeMapWrapper(wrapped, mainContent.getHandle());
81 }
82 */
83 @Override
84 protected Map newContext() {
85 return MgnlContext.getWebContext("JspRenderer can only be used with a WebContext");
86 }
87
88 }