1   /**
2    * Copyright (c) 2000-2009 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 request = null;
48  
49          try {
50              ServletContext servletContext = getServletContext();
51              request = getServletRequest();
52              StringServletResponse stringResponse = getServletResponse();
53  
54              Theme theme = (Theme)request.getAttribute(WebKeys.THEME);
55  
56              String page = getPage();
57  
58              if (isTheme()) {
59                  ThemeUtil.include(
60                      servletContext, request, stringResponse, pageContext, page,
61                      theme);
62              }
63              else {
64                  RequestDispatcher requestDispatcher =
65                      servletContext.getRequestDispatcher(page);
66  
67                  requestDispatcher.include(request, stringResponse);
68              }
69  
70              pageContext.getOut().print(stringResponse.getString());
71  
72              return EVAL_PAGE;
73          }
74          catch (Exception e) {
75              if (request != null) {
76                  String currentURL = (String)request.getAttribute(
77                      WebKeys.CURRENT_URL);
78  
79                  _log.error(
80                      "Current URL " + currentURL + " generates exception: " +
81                          e.getMessage());
82              }
83  
84              LogUtil.log(_log, e);
85  
86              if (e instanceof JspException) {
87                  throw (JspException)e;
88              }
89  
90              return EVAL_PAGE;
91          }
92          finally {
93              clearParams();
94              clearProperties();
95          }
96      }
97  
98      public boolean isTheme() {
99          return false;
100     }
101 
102     public String getPage() {
103         if (Validator.isNull(_page)) {
104             return getDefaultPage();
105         }
106         else {
107             return _page;
108         }
109     }
110 
111     public void setPage(String page) {
112         _page = page;
113     }
114 
115     public ServletContext getServletContext() {
116         if (_servletContext != null) {
117             return _servletContext;
118         }
119         else {
120             return super.getServletContext();
121         }
122     }
123 
124     public void setServletContext(ServletContext servletContext) {
125         _servletContext = servletContext;
126     }
127 
128     protected String getDefaultPage() {
129         return null;
130     }
131 
132     private static Log _log = LogFactoryUtil.getLog(IncludeTag.class);
133 
134     private String _page;
135     private ServletContext _servletContext;
136 
137 }