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Java > Open Source Codes > org > infoglue > deliver > taglib > TemplateControllerTag


1 /* ===============================================================================
2 *
3 * Part of the InfoGlue Content Management Platform (www.infoglue.org)
4 *
5 * ===============================================================================
6 *
7 * Copyright (C)
8 *
9 * This program is free software; you can redistribute it and/or modify it under
10 * the terms of the GNU General Public License version 2, as published by the
11 * Free Software Foundation. See the file LICENSE.html for more information.
12 *
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY, including the implied warranty of MERCHANTABILITY or FITNESS
15 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc. / 59 Temple
19 * Place, Suite 330 / Boston, MA 02111-1307 / USA.
20 *
21 * ===============================================================================
22 */

23
24 package org.infoglue.deliver.taglib;
25
26 import javax.servlet.jsp.JspTagException JavaDoc;
27
28 import org.infoglue.deliver.controllers.kernel.impl.simple.TemplateController;
29
30 /**
31  * Base class for all tags using the TemplateController object.
32  */

33 public abstract class TemplateControllerTag extends AbstractTag
34 {
35     /**
36      * Default constructor.
37      */

38     protected TemplateControllerTag()
39     {
40         super();
41     }
42     
43     /**
44      * Returns the template controller.
45      *
46      * Note! Do not called this function before the PageContext is initialized.
47      *
48      * @return the template controller.
49      * @throws JspTagException if the template controller wasn't found.
50      */

51     protected TemplateController getController() throws JspTagException JavaDoc
52     {
53         TemplateController controller;
54         
55         try
56         {
57             controller = (TemplateController) this.pageContext.getRequest().getAttribute("org.infoglue.cms.deliver.templateLogic");
58             if(controller == null)
59             {
60                 throw new NullPointerException JavaDoc("No TemplateController found in context.");
61             }
62         }
63         catch(Exception JavaDoc e)
64         {
65             e.printStackTrace();
66             throw new JspTagException JavaDoc(e.getMessage());
67         }
68             
69         return controller;
70     }
71 }
72
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