ObjectRenderer


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.riot.list.ui.render;
25  
26  import java.beans.PropertyEditor  ;
27  import java.beans.PropertyEditorManager  ;
28  import java.beans.PropertyEditorSupport  ;
29  import java.io.PrintWriter  ;
30  
31  import org.springframework.web.util.HtmlUtils;
32  
33  /**
34   *
35   */
36  public class ObjectRenderer implements CellRenderer {
37  
38      private static PropertyEditor   DEFAULT_EDITOR = new StringPropertyEditor();
39      
40      private PropertyEditor   propertyEditor;
41      
42      /**
43       * @param propertyEditor The propertyEditor to use.
44       */
45      public void setPropertyEditor(PropertyEditor   propertyEditor) {
46          this.propertyEditor = propertyEditor;
47      }
48      
49      public void render(String   propertyName, Object   value, RenderContext context, PrintWriter   writer) {
50          if (value != null) {
51              Class   type = value.getClass();
52              if (propertyEditor == null) {
53                  propertyEditor = PropertyEditorManager.findEditor(type);
54                  if (propertyEditor == null) {
55                      propertyEditor = DEFAULT_EDITOR;
56                  }
57              }
58              propertyEditor.setValue(value);
59              renderValue(context, writer, propertyEditor.getAsText());
60          }
61      }
62  
63      protected void renderValue(RenderContext context, PrintWriter   writer, 
64              String   value) {
65          
66          writer.print(HtmlUtils.htmlEscape(value));
67      }
68      
69      private static class StringPropertyEditor extends PropertyEditorSupport   {
70      }
71  
72  }
73
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