BooleanTypeHandler


1   /*
2    * The contents of this file are subject to the Sapient Public License
3    * Version 1.0 (the "License"); you may not use this file except in compliance
4    * with the License. You may obtain a copy of the License at
5    * http://carbon.sf.net/License.html.
6    *
7    * Software distributed under the License is distributed on an "AS IS" basis,
8    * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
9    * the specific language governing rights and limitations under the License.
10   *
11   * The Original Code is The Carbon Component Framework.
12   *
13   * The Initial Developer of the Original Code is Sapient Corporation
14   *
15   * Copyright (C) 2003 Sapient Corporation. All Rights Reserved.
16   */
17  
18  package org.sape.carbon.core.config.type.handlers;
19  
20  
21  import org.sape.carbon.core.config.type.ConfigurationTypeHandler;
22  import org.sape.carbon.core.config.type.TypeConversionException;
23  
24  /**
25   * <P>Parses and formats between Strings and Booleans.</P>
26   *
27   * Copyright 2002 Sapient
28   * @since carbon 1.0
29   * @author Greg Hinkle, January 2002
30   * @version $Revision: 1.11 $($Author: dvoet $ / $Date: 2003/05/05 21:21:20 $)
31   */
32  public class BooleanTypeHandler implements ConfigurationTypeHandler {
33  
34      /**
35       * <P>Parses a string into a Boolean object.</P>
36       *
37       * @param stringValue the String representation of the requested Boolean
38       * @param type the type of object being converted
39       * @return the Boolean object
40       * @throws TypeConversionException when the string does not represent
41       *   a valid Boolean
42       */
43      public Object   toObject(Class   type, String   stringValue)
44          throws TypeConversionException {
45  
46          Boolean   object = null;
47          try {
48              object = Boolean.valueOf(stringValue);
49          } catch (NumberFormatException   nfe) {
50              throw new TypeConversionException(
51                  this.getClass(),
52                      "Couldn't format", nfe);
53          }
54          return object;
55      }
56  
57      /**
58       * <P>Formats an Boolean into a String value.</P>
59       *
60       * @param objectValue the Boolean to be formatted
61       * @return String representation of the object
62       * @throws ClassCastException when past an object other than a Boolean
63       */
64      public String   toString(Object   objectValue) {
65          return ((Boolean  ) objectValue).toString();
66      }
67  
68  }
69
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