01 /*
02 * Copyright 2008-2017 the original author or authors.
03 *
04 * Licensed under the Apache License, Version 2.0 (the "License");
05 * you may not use this file except in compliance with the License.
06 * You may obtain a copy of the License at
07 *
08 * http://www.apache.org/licenses/LICENSE-2.0
09 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package griffon.core.editors;
17
18 import static griffon.util.GriffonNameUtils.isBlank;
19
20 /**
21 * @author Andres Almiray
22 * @since 2.0.0
23 */
24 @SuppressWarnings("rawtypes")
25 public class EnumPropertyEditor extends AbstractPropertyEditor {
26 private Class<? extends Enum> enumType;
27
28 public Class<? extends Enum> getEnumType() {
29 return enumType;
30 }
31
32 public void setEnumType(Class<? extends Enum> enumType) {
33 this.enumType = enumType;
34 }
35
36 @Override
37 protected void setValueInternal(Object value) {
38 if (null == value) {
39 super.setValueInternal(null);
40 } else if (value instanceof CharSequence) {
41 handleAsString(String.valueOf(value));
42 } else if (value instanceof Enum) {
43 handleAsString(value.toString());
44 } else {
45 throw illegalValue(value, enumType);
46 }
47 }
48
49 @SuppressWarnings("unchecked")
50 protected void handleAsString(String str) {
51 if (isBlank(str)) {
52 super.setValueInternal(null);
53 return;
54 }
55
56 try {
57 super.setValueInternal(Enum.valueOf(enumType, str));
58 } catch (Exception e) {
59 throw illegalValue(str, enumType, e);
60 }
61 }
62 }
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