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 * https://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.commons.beanutils2.bugs.other;
18
19 import java.beans.BeanInfo;
20 import java.beans.IndexedPropertyDescriptor;
21 import java.beans.IntrospectionException;
22 import java.beans.Introspector;
23 import java.beans.PropertyDescriptor;
24 import java.util.ArrayList;
25 import java.util.List;
26
27 /**
28 * Test if BeanInfo supports index properties for java.util.List
29 * <p>
30 * This was supported by Java until Java 8 (BEANUTILS-492).
31 *
32 * @see <a href="https://issues.apache.org/jira/browse/BEANUTILS-492">BEANUTILS-492</a>
33 */
34 public class Jira492IndexedListsSupport {
35 public static class IndexedBean {
36 private List<String> someList = new ArrayList<>();
37
38 public List<String> getSomeList() {
39 return someList;
40 }
41
42 public String getSomeList(final int i) {
43 return someList.get(i);
44 }
45
46 public void setSomeList(final int i, final String value) {
47 someList.set(i, value);
48 }
49
50 public void setSomeList(final List<String> someList) {
51 this.someList = someList;
52 }
53 }
54
55 public static boolean supportsIndexedLists() throws IntrospectionException {
56 final BeanInfo beanInfo = Introspector.getBeanInfo(IndexedBean.class);
57 for (final PropertyDescriptor pd : beanInfo.getPropertyDescriptors()) {
58 if (pd.getName().equals("someList")) {
59 return pd instanceof IndexedPropertyDescriptor;
60 }
61 }
62 throw new IllegalStateException("Could not find PropertyDescriptor for 'file'");
63 }
64
65 }