AttributeRendererController


1   /* ***** BEGIN LICENSE BLOCK *****
2    * Version: MPL 1.1
3    * The contents of this file are subject to the Mozilla Public License Version
4    * 1.1 (the "License"); you may not use this file except in compliance with
5    * the License. You may obtain a copy of the License at
6    * http://www.mozilla.org/MPL/
7    * 
8    * Software distributed under the License is distributed on an "AS IS" basis,
9    * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
10   * for the specific language governing rights and limitations under the
11   * License.
12   * 
13   * The Original Code is Riot.
14   * 
15   * The Initial Developer of the Original Code is
16   * Neteye GmbH.
17   * Portions created by the Initial Developer are Copyright (C) 2006
18   * the Initial Developer. All Rights Reserved.
19   * 
20   * Contributor(s):
21   *   Felix Gnass [fgnass at neteye dot de]
22   * 
23   * ***** END LICENSE BLOCK ***** */
24  package org.riotfamily.common.web.controller;
25  
26  import javax.servlet.http.HttpServletRequest  ;
27  import javax.servlet.http.HttpServletResponse  ;
28  
29  import org.springframework.util.Assert;
30  import org.springframework.web.servlet.ModelAndView;
31  import org.springframework.web.servlet.mvc.Controller;
32  
33  /**
34   * Controller that outputs the value of a request attribute.
35   * 
36   * @author Felix Gnass [fgnass at neteye dot de]
37   */
38  public class AttributeRendererController implements Controller {
39  
40      private String   attributeName;
41      
42      public void setAttributeName(String   attributeName) {
43          this.attributeName = attributeName;
44      }
45      
46      public ModelAndView handleRequest(HttpServletRequest   request, 
47              HttpServletResponse   response) throws Exception   {
48          
49          Assert.notNull(attributeName, "Attribute Name must be specified");
50          response.getWriter().print(request.getAttribute(attributeName));        
51          return null;
52      }
53  }
54
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