1 /**
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.xbean.propertyeditor;
18
19 import java.lang.reflect.Method;
20
21 /**
22 * @version $Rev$ $Date$
23 */
24 public class EnumConverter extends AbstractConverter {
25
26 public EnumConverter(Class type) {
27 super(type);
28 }
29
30 protected Object toObjectImpl(String text) {
31 Class type = getType();
32
33 try {
34 return Enum.valueOf(type, text);
35 } catch (Exception cause) {
36 try {
37 int index = Integer.parseInt(text);
38 Method method = type.getMethod("values");
39 Object[] values = (Object[]) method.invoke(null);
40 return values[index];
41 } catch (NumberFormatException e) {
42 } catch (Exception e) {
43 cause = e;
44 }
45
46 throw new PropertyEditorException("Value \"" + text + "\" cannot be converted to enum type " + type.getName(), cause);
47 }
48 }
49 }