feign client eager load

[MI-cool]

import org.springframework.beans.BeansException; import org.springframework.beans.factory.config.ConfigurableListableBeanFactory; import org.springframework.beans.factory.support.BeanDefinitionRegistry; import org.springframework.beans.factory.support.BeanDefinitionRegistryPostProcessor; import org.springframework.boot.context.event.ApplicationStartedEvent; import org.springframework.cloud.openfeign.FeignClient; import org.springframework.cloud.openfeign.ribbon.CachingSpringLoadBalancerFactory; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; import org.springframework.context.ApplicationListener; import org.springframework.lang.NonNull; import org.springframework.stereotype.Component;

@Component public class FeignClientEagerLoadConfig implements ApplicationContextAware, BeanDefinitionRegistryPostProcessor, ApplicationListener {

private ApplicationContext applicationContext;

private BeanDefinitionRegistry beanDefinitionRegistry;

@Override
public void setApplicationContext(@NonNull ApplicationContext applicationContext) throws BeansException {
    this.applicationContext = applicationContext;
}

@Override
public void postProcessBeanDefinitionRegistry(@NonNull BeanDefinitionRegistry registry) throws BeansException {
    this.beanDefinitionRegistry = registry;
}

@Override
public void postProcessBeanFactory(@NonNull ConfigurableListableBeanFactory beanFactory) throws BeansException {

}

@Override
public void onApplicationEvent(@NonNull ApplicationStartedEvent event) {
    CachingSpringLoadBalancerFactory loadBalancerFactory = applicationContext.getBean(CachingSpringLoadBalancerFactory.class);
    String[] beanNames = applicationContext.getBeanNamesForAnnotation(FeignClient.class);
    for (String name : beanNames) {
        Object feignClientNameObj = beanDefinitionRegistry.getBeanDefinition(name).getPropertyValues().get("name");
        if (feignClientNameObj != null) {
            loadBalancerFactory.create(feignClientNameObj.toString());
        }
    }
}

}

[MI-cool]

我看Spring Cloud TSF Finchley有实现feign eager load，感觉稍微有些复杂。 或许可以用上文的方法？