1 /**
2 * This file Copyright (c) 2010 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.module.blossom.web;
35
36 import org.springframework.core.MethodParameter;
37 import org.springframework.web.bind.support.WebArgumentResolver;
38 import org.springframework.web.context.request.NativeWebRequest;
39
40 import info.magnolia.cms.core.AggregationState;
41 import info.magnolia.cms.core.Content;
42 import info.magnolia.cms.security.MgnlUser;
43 import info.magnolia.cms.security.User;
44 import info.magnolia.context.Context;
45 import info.magnolia.context.MgnlContext;
46 import info.magnolia.context.WebContext;
47
48 /**
49 * Enables use of {@link info.magnolia.cms.core.Content}, {@link info.magnolia.cms.core.AggregationState},
50 * {@link info.magnolia.context.WebContext} and {@link info.magnolia.context.Context} as arguments in methods
51 * annotated with @RequestMapping.
52 *
53 * To use it configure it on your {@link org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter}.
54 *
55 * @since 1.2
56 */
57 public class BlossomWebArgumentResolver implements WebArgumentResolver {
58
59 public Object resolveArgument(MethodParameter methodParameter, NativeWebRequest webRequest) throws Exception {
60
61 if (methodParameter.getParameterType().isAssignableFrom(Content.class)) {
62 AggregationState aggregationState = MgnlContext.getAggregationState();
63 Content currentContent = aggregationState.getCurrentContent();
64 return currentContent != null ? currentContent : aggregationState.getMainContent();
65 }
66 if (methodParameter.getParameterType().isAssignableFrom(AggregationState.class)) {
67 return MgnlContext.getAggregationState();
68 }
69 if (methodParameter.getParameterType().isAssignableFrom(WebContext.class)) {
70 return MgnlContext.getWebContext();
71 }
72 if (methodParameter.getParameterType().isAssignableFrom(Context.class)) {
73 return MgnlContext.getInstance();
74 }
75 if (methodParameter.getParameterType().isAssignableFrom(User.class)) {
76 return MgnlContext.getUser();
77 }
78 if (methodParameter.getParameterType().isAssignableFrom(MgnlUser.class)) {
79 return MgnlContext.getUser();
80 }
81
82 return UNRESOLVED;
83 }
84 }