com.bell.mf.support.processor.HandlerBeanPostProcessor Maven / Gradle / Ivy
package com.bell.mf.support.processor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeansException;
import org.springframework.beans.FatalBeanException;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.core.Ordered;
import com.bell.mf.annotation.MessageFrameHandler;
import com.bell.mf.support.repository.HandlerRepository;
/**
* MessageFrameHandler注解或接口的后置处理器
* @author bell.zhouxiaobing
* @since 1.3
*/
public class HandlerBeanPostProcessor implements BeanPostProcessor, Ordered{
private static Logger logger = LoggerFactory.getLogger(HandlerBeanPostProcessor.class);
private HandlerRepository repository;
@Override
public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
return bean;
}
@Override
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
boolean hasHandlerAnnotation = hasHandlerAnnotation(bean);
boolean isHandlerImpl = isHandlerImpl(bean);
if (hasHandlerAnnotation) {
if (isHandlerImpl) {
String msg = "["+beanName + "]使用了@MessageFrameHandler注解就不能够是MessageFrameHandler的实现类！";
logger.error(msg);
throw new FatalBeanException(msg);
}
logger.info("HandlerBeanPostProcessor hasHandlerAnnotation ==> "+beanName);
repository.setHandler(bean, beanName);
}else if (isHandlerImpl) {
logger.info("HandlerBeanPostProcessor isHandlerImpl ==> "+beanName);
repository.setHandler(bean, beanName);
}
return bean;
}
private boolean isHandlerImpl(Object bean) {
return bean instanceof com.bell.mf.handler.MessageFrameHandler;
}
private boolean hasHandlerAnnotation(Object bean) {
boolean hasHandlerAnnotation = bean.getClass().getDeclaredAnnotation(MessageFrameHandler.class) != null;
return hasHandlerAnnotation;
}
@Override
public int getOrder() {
return Ordered.HIGHEST_PRECEDENCE;
}
public HandlerRepository getRepository() {
return repository;
}
public void setRepository(HandlerRepository repository) {
this.repository = repository;
}
}