1 /*
2 * Copyright 2007-2012 the original author or authors.
3 *
4 * Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0
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
17 package org.springbyexample.util.log;
18
19 import org.springframework.beans.BeansException;
20
21 /**
22 * <p>Injects loggers into new bean instances based on the different
23 * <code>LoggerAware</code> interfaces.</p>
24 *
25 * @author David Winterfeldt
26 */
27 public class LoggerAwareBeanPostProcessor extends LoggerBeanPostProcessor {
28
29 protected final static String LOGGER_AWARE_METHOD_NAME = "setLogger";
30
31 /*
32 * This method is used to execute before a bean's initialization callback.
33 *
34 * @see org.springframework.beans.factory.config.BeanPostProcessor#postProcessBeforeInitialization(java.lang.Object, java.lang.String)
35 */
36 public Object postProcessBeforeInitialization(Object bean, String beanName)
37 throws BeansException {
38 if (bean instanceof LoggerAware<?>) {
39 processLogger(bean, LOGGER_AWARE_METHOD_NAME);
40 }
41
42 return bean;
43 }
44
45 }