1 /*
2 * $Id: JspTilesRequestContext.java 603723 2007-12-12 20:07:37Z apetrelli $
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21 package org.apache.tiles.jsp.context;
22
23 import org.apache.tiles.context.TilesRequestContext;
24 import org.apache.tiles.servlet.context.ServletTilesRequestContext;
25
26 import javax.servlet.ServletContext;
27 import javax.servlet.ServletException;
28 import javax.servlet.http.HttpServletRequest;
29 import javax.servlet.http.HttpServletResponse;
30 import javax.servlet.jsp.PageContext;
31 import java.io.IOException;
32
33 /**
34 * Context implementation used for executing tiles within a
35 * jsp tag library.
36 *
37 * @version $Rev: 603723 $ $Date: 2007-12-12 21:07:37 +0100 (Wed, 12 Dec 2007) $
38 */
39 public class JspTilesRequestContext extends ServletTilesRequestContext
40 implements TilesRequestContext {
41
42 /**
43 * The current page context.
44 */
45 private PageContext pageContext;
46
47 /**
48 * The writer response to use.
49 */
50 private JspWriterResponse response;
51
52 /**
53 * Constructor.
54 *
55 * @param context The servlet context to use.
56 * @param pageContext The page context to use.
57 */
58 public JspTilesRequestContext(ServletContext context, PageContext pageContext) {
59 super(context,
60 (HttpServletRequest) pageContext.getRequest(),
61 (HttpServletResponse) pageContext.getResponse());
62 this.pageContext = pageContext;
63 }
64
65 /**
66 * Dispatches a path. In fact it "includes" it!
67 *
68 * @param path The path to dispatch to.
69 * @throws IOException If something goes wrong during dispatching.
70 * @see org.apache.tiles.servlet.context.ServletTilesRequestContext#dispatch(java.lang.String)
71 */
72 public void dispatch(String path) throws IOException {
73 include(path);
74 }
75
76 /** {@inheritDoc} */
77 public void include(String path) throws IOException {
78 JspUtil.setForceInclude(pageContext, true);
79 try {
80 pageContext.include(path, false);
81 } catch (ServletException e) {
82 throw wrapServletException(e, "JSPException including path '"
83 + path + "'.");
84 }
85 }
86
87 /** {@inheritDoc} */
88 public HttpServletResponse getResponse() {
89 if (response == null) {
90 response = new JspWriterResponse(pageContext);
91 }
92 return response;
93 }
94
95 }
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