1 /**
2 * This file Copyright (c) 2003-2015 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.context;
35
36 import info.magnolia.cms.beans.runtime.MultipartForm;
37 import info.magnolia.cms.core.AggregationState;
38
39 import java.util.Map;
40 import java.io.IOException;
41 import java.io.Writer;
42
43 import javax.servlet.http.HttpServletRequest;
44 import javax.servlet.http.HttpServletResponse;
45 import javax.servlet.jsp.PageContext;
46 import javax.servlet.ServletContext;
47 import javax.servlet.ServletException;
48
49
50 /**
51 * Context interface specialized for servlet requests; knows about HttpServletRequest/HttpServletResponse.
52 */
53 public interface WebContext extends Context {
54
55 /**
56 * Attribute name to get the requests character encoding.
57 * @deprecated use AggregationState
58 */
59 public static final String ATTRIBUTE_REQUEST_CHARACTER_ENCODING = "characterEncoding";
60
61 /**
62 * Attribute name to get the request uri.
63 * @deprecated use AggregationState
64 */
65 public static final String ATTRIBUTE_REQUEST_URI = "requestURI";
66
67 /**
68 * Method used to initialize the context.
69 */
70 public void init(HttpServletRequest request, HttpServletResponse response, ServletContext servletContext);
71
72 /**
73 * Retrieves the Aggregator instance, which gathers all info regarding the current request (paths, etc).
74 */
75 public AggregationState getAggregationState();
76
77 /**
78 * Resets the current aggregator instance.
79 */
80 void resetAggregationState();
81
82 /**
83 * Get form object assembled by <code>MultipartRequestFilter</code>.
84 * @return multipart form object
85 */
86 public MultipartForm getPostedForm();
87
88 /**
89 * Get a parameter value as string.
90 * @return parameter value
91 */
92 public String getParameter(String name);
93
94 /**
95 * Get all parameter values as a Map<String, String>.
96 * @return parameter values
97 */
98 public Map<String, String> getParameters();
99
100 /**
101 * Get the current context path.
102 */
103 public String getContextPath();
104
105 /**
106 * Avoid calls to this method wherever possible.
107 * @return Returns the request.
108 */
109 public HttpServletRequest getRequest();
110
111 /**
112 * Avoid depending on this as much as possible.
113 */
114 public HttpServletResponse getResponse();
115
116 /**
117 * Returns the current servlet context.
118 * @return ServletContext instance
119 */
120 ServletContext getServletContext();
121
122 /**
123 * Includes/render the given path into the given Writer, by wrapping it in the current HttpServletResponse.
124 * @see javax.servlet.ServletRequest#getRequestDispatcher(String)
125 * @see javax.servlet.RequestDispatcher#include(javax.servlet.ServletRequest, javax.servlet.ServletResponse)
126 */
127 void include(final String path, final Writer out) throws ServletException, IOException;
128
129 /**
130 * Sets the current jsp page context. Callers should take care of appropriately unset it
131 * once done with it. Typically a jsp renderer will setPageContext(null) after having rendered
132 * a jsp.
133 * @param pageContext jsp page context
134 */
135 void setPageContext(PageContext pageContext);
136
137 /**
138 * Returns the current jsp page context, <strong>if any</strong>.
139 * @return jsp page context or null if it has not been populated by calling setPageContext
140 */
141 PageContext getPageContext();
142
143 public void push(HttpServletRequest request, HttpServletResponse response);
144
145 /**
146 *
147 */
148 public void pop();
149
150 /**
151 * Get parameter values as string[].
152 * @return parameter values
153 */
154 public String[] getParameterValues(String name);
155
156 }