AdvancedMappingExceptionResolver


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.util;
25  
26  import org.springframework.web.servlet.ModelAndView;
27  import org.springframework.web.servlet.handler.SimpleMappingExceptionResolver;
28  
29  /**
30   * Extends the {@link SimpleMappingExceptionResolver} and adds the
31   * root-cause of the exception to the model.
32   * 
33   * @author Felix Gnass [fgnass at neteye dot de]
34   */
35  public class AdvancedMappingExceptionResolver 
36          extends SimpleMappingExceptionResolver {
37  
38      private String   rootCaseAttribute = "rootCause";
39      
40      public void setRootCaseAttribute(String   rootCaseAttribute) {
41          this.rootCaseAttribute = rootCaseAttribute;
42      }
43  
44      protected ModelAndView getModelAndView(String   viewName, Exception   ex) {
45          logger.error("Unhandled exception", ex);
46          ModelAndView mv = super.getModelAndView(viewName, ex);
47          
48          Throwable   rootCause = ex; 
49          while (rootCause.getCause() != null) {
50              rootCause = rootCause.getCause();
51          }
52          mv.getModel().put(rootCaseAttribute, rootCause);
53          
54          return mv;
55      }
56  
57  }
58
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