| IncludeTag.java |
1 /**
2 * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.taglib.util;
24
25 import com.liferay.portal.kernel.log.Log;
26 import com.liferay.portal.kernel.log.LogFactoryUtil;
27 import com.liferay.portal.kernel.log.LogUtil;
28 import com.liferay.portal.kernel.servlet.StringServletResponse;
29 import com.liferay.portal.kernel.util.Validator;
30 import com.liferay.portal.model.Theme;
31 import com.liferay.portal.util.WebKeys;
32
33 import javax.servlet.RequestDispatcher;
34 import javax.servlet.ServletContext;
35 import javax.servlet.http.HttpServletRequest;
36 import javax.servlet.jsp.JspException;
37
38 /**
39 * <a href="IncludeTag.java.html"><b><i>View Source</i></b></a>
40 *
41 * @author Brian Wing Shun Chan
42 *
43 */
44 public class IncludeTag extends ParamAndPropertyAncestorTagImpl {
45
46 public int doEndTag() throws JspException {
47 HttpServletRequest req = null;
48
49 try {
50 ServletContext ctx = getServletContext();
51 req = getServletRequest();
52 StringServletResponse res = getServletResponse();
53
54 Theme theme = (Theme)req.getAttribute(WebKeys.THEME);
55
56 String page = getPage();
57
58 if (isTheme()) {
59 ThemeUtil.include(ctx, req, res, pageContext, page, theme);
60 }
61 else {
62 RequestDispatcher rd = ctx.getRequestDispatcher(page);
63
64 rd.include(req, res);
65 }
66
67 pageContext.getOut().print(res.getString());
68
69 return EVAL_PAGE;
70 }
71 catch (Exception e) {
72 if (req != null) {
73 String currentURL = (String)req.getAttribute(
74 WebKeys.CURRENT_URL);
75
76 _log.error(
77 "Current URL " + currentURL + " generates exception: " +
78 e.getMessage());
79 }
80
81 LogUtil.log(_log, e);
82
83 return EVAL_PAGE;
84 }
85 finally {
86 clearParams();
87 }
88 }
89
90 public boolean isTheme() {
91 return false;
92 }
93
94 public String getPage() {
95 if (Validator.isNull(_page)) {
96 return getDefaultPage();
97 }
98 else {
99 return _page;
100 }
101 }
102
103 public void setPage(String page) {
104 _page = page;
105 }
106
107 protected String getDefaultPage() {
108 return null;
109 }
110
111 private static Log _log = LogFactoryUtil.getLog(IncludeTag.class);
112
113 private String _page;
114
115 }