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1   /* Copyright 2004 Acegi Technology Pty Limited
2    *
3    * Licensed under the Apache License, Version 2.0 (the "License");
4    * you may not use this file except in compliance with the License.
5    * You may obtain a copy of the License at
6    *
7    *     http://www.apache.org/licenses/LICENSE-2.0
8    *
9    * Unless required by applicable law or agreed to in writing, software
10   * distributed under the License is distributed on an "AS IS" BASIS,
11   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12   * See the License for the specific language governing permissions and
13   * limitations under the License.
14   */
15  
16  package org.acegisecurity;
17  
18  import org.springframework.util.StringUtils;
19  
20  import java.beans.PropertyEditorSupport;
21  
22  
23  /***
24   * A property editor that can create a populated  {@link
25   * ConfigAttributeDefinition} from a comma separated list of values.
26   * 
27   * <P>
28   * Trims preceding and trailing spaces from presented command separated tokens,
29   * as this can be a source of hard-to-spot configuration issues for end users.
30   * </p>
31   *
32   * @author Ben Alex
33   * @version $Id: ConfigAttributeEditor.java,v 1.4 2005/11/17 00:55:49 benalex Exp $
34   */
35  public class ConfigAttributeEditor extends PropertyEditorSupport {
36      //~ Methods ================================================================
37  
38      public void setAsText(String s) throws IllegalArgumentException {
39          if ((s == null) || "".equals(s)) {
40              setValue(null);
41          } else {
42              String[] tokens = StringUtils.commaDelimitedListToStringArray(s);
43              ConfigAttributeDefinition configDefinition = new ConfigAttributeDefinition();
44  
45              for (int i = 0; i < tokens.length; i++) {
46                  configDefinition.addConfigAttribute(new SecurityConfig(
47                          tokens[i].trim()));
48              }
49  
50              setValue(configDefinition);
51          }
52      }
53  }