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
18 package org.apache.commons.jxpath;
19
20 import java.util.Iterator;
21 import java.util.Map;
22 import java.util.Set;
23
24 /**
25 * Implements the DynamicPropertyHandler interface for {@link java.util.Map}.
26 */
27 public class MapDynamicPropertyHandler implements DynamicPropertyHandler {
28
29 /**
30 * Constructs a new instance.
31 */
32 public MapDynamicPropertyHandler() {
33 // empty
34 }
35
36 @Override
37 public Object getProperty(final Object object, final String propertyName) {
38 return ((Map) object).get(propertyName);
39 }
40
41 @Override
42 public String[] getPropertyNames(final Object object) {
43 final Map map = (Map) object;
44 final Set set = map.keySet();
45 final String[] names = new String[set.size()];
46 final Iterator it = set.iterator();
47 for (int i = 0; i < names.length; i++) {
48 names[i] = String.valueOf(it.next());
49 }
50 return names;
51 }
52
53 @Override
54 public void setProperty(final Object object, final String propertyName, final Object value) {
55 ((Map) object).put(propertyName, value);
56 }
57 }