1 /***
2 *
3 * Copyright 2004 Protique Ltd
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * 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.codehaus.activemq.util;
19
20 import org.apache.commons.logging.Log;
21 import org.apache.commons.logging.LogFactory;
22
23 import java.lang.reflect.Method;
24 import java.util.Map;
25
26 /***
27 * Some bean utility methods
28 *
29 * @version $Revision: 1.1 $
30 */
31 public class BeanUtils {
32 private static final Log log = LogFactory.getLog(BeanUtils.class);
33
34 protected static final String NAME = "org.apache.commons.beanutils.BeanUtils";
35 protected static final Class[] PARAMETER_TYPES = new Class[]{Object.class, Map.class};
36
37 public static void populate(Object bean, Map properties) {
38
39 Class beanUtils = null;
40 try {
41 beanUtils = Thread.currentThread().getContextClassLoader().loadClass(NAME);
42 }
43 catch (ClassNotFoundException e) {
44 try {
45 beanUtils = BeanUtils.class.getClassLoader().loadClass(NAME);
46 }
47 catch (ClassNotFoundException e1) {
48 log.trace("Cannot find: " + NAME + ". Reason: " + e, e);
49 }
50 }
51 if (beanUtils == null) {
52 log.warn("Could not find class: " + NAME + " so cannot configure bean using introspection: " + bean);
53 }
54 else {
55 Method method = null;
56 try {
57 method = beanUtils.getMethod("populate", PARAMETER_TYPES);
58 }
59 catch (NoSuchMethodException e) {
60 log.trace("Could not find populate", e);
61 }
62 if (method == null) {
63 log.warn("Could not find populate() method so cannot configure bean using introspection: " + bean);
64 }
65 else {
66 try {
67 method.invoke(null, new Object[]{bean, properties});
68 }
69 catch (Exception e) {
70 log.warn("Could not populate the bean via introspection: " + bean + ". Reason: " + e, e);
71 }
72 }
73 }
74 }
75 }