1 /**
2 * Copyright 2005-2012 The Kuali Foundation
3 *
4 * Licensed under the Educational Community License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.opensource.org/licenses/ecl2.php
9 *
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 org.kuali.rice.krad.keyvalues;
17
18 import org.apache.commons.lang.StringUtils;
19 import org.apache.commons.lang.WordUtils;
20 import org.kuali.rice.core.api.util.ConcreteKeyValue;
21 import org.kuali.rice.core.api.util.KeyValue;
22 import org.kuali.rice.kew.api.util.CodeTranslator;
23
24 import java.util.ArrayList;
25 import java.util.List;
26
27 /**
28 * ValuesFinder that derives values directly from a Java enum.
29 * KeyValues are provided in enum definition order, enum name
30 * is the key, capitalized lowercase enum name is the label.
31 */
32 public class EnumValuesFinder extends KeyValuesBase {
33 private Class<? extends Enum> enumeration;
34
35 public EnumValuesFinder(Class<? extends Enum> enumeration) {
36 this.enumeration = enumeration;
37 }
38
39 @Override
40 public List<KeyValue> getKeyValues() {
41 List<KeyValue> labels = new ArrayList<KeyValue>();
42 for (Enum enumval: enumeration.getEnumConstants()) {
43 labels.add(new ConcreteKeyValue(getEnumKey(enumval), getEnumLabel(enumval)));
44 }
45 return labels;
46 }
47
48 /**
49 * Derives a key value from an enum
50 */
51 protected String getEnumKey(Enum enm) {
52 return enm.name();
53 }
54
55 /**
56 * Derives a label value from an enum
57 */
58 protected String getEnumLabel(Enum enm) {
59 return WordUtils.capitalize(enm.name().toLowerCase());
60 }
61 }