| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.spring.postprocessor; |
| |
| import java.lang.reflect.Field; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.springframework.beans.BeansException; |
| import org.springframework.beans.factory.config.InstantiationAwareBeanPostProcessorAdapter; |
| import org.springframework.stereotype.Component; |
| import org.springframework.util.ReflectionUtils; |
| |
| /** |
| * Trivial post processor which sets the value of the annotation to the field it is applied to |
| */ |
| @Component |
| public class MagicAnnotationPostProcessor extends InstantiationAwareBeanPostProcessorAdapter { |
| |
| protected Logger log = LoggerFactory.getLogger(getClass()); |
| |
| @Override |
| public boolean postProcessAfterInstantiation(final Object bean, final String beanName) throws BeansException { |
| ReflectionUtils.doWithFields(bean.getClass(), new ReflectionUtils.FieldCallback() { |
| public void doWith(Field field) throws IllegalArgumentException, IllegalAccessException { |
| MagicAnnotation annotation = field.getAnnotation(MagicAnnotation.class); |
| if (annotation != null && field.getType() == String.class) { |
| log.info("Found MagicAnnotation on field " + field + " of class " + bean.getClass()); |
| |
| ReflectionUtils.makeAccessible(field); |
| field.set(bean, annotation.value()); |
| } |
| } |
| }); |
| |
| return true; |
| } |
| |
| } |