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Merge pull request #905 from echooymxq/master

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Advance adapt Dubbo restTemplates
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Mercy Ma 2019-09-11 12:47:54 +08:00 committed by GitHub
commit 08cce947fd
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1 changed files with 34 additions and 20 deletions
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54
spring-cloud-alibaba-dubbo/src/main/java/com/alibaba/cloud/dubbo/autoconfigure/DubboLoadBalancedRestTemplateAutoConfiguration.java
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@ -25,16 +25,19 @@ import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.context.event.ApplicationStartedEvent;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor;
import org.springframework.cloud.client.loadbalancer.RestTemplateCustomizer;
import org.springframework.cloud.client.loadbalancer.RetryLoadBalancerInterceptor;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.context.event.EventListener;
import org.springframework.core.env.Environment;
import org.springframework.core.type.MethodMetadata;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.lang.Nullable;
import org.springframework.util.CollectionUtils;
import org.springframework.web.client.RestTemplate;
@ -56,8 +59,8 @@ import com.alibaba.cloud.dubbo.service.DubboGenericServiceFactory;
@ConditionalOnClass(name = { "org.springframework.web.client.RestTemplate" })
@AutoConfigureAfter(name = {
"org.springframework.cloud.client.loadbalancer.LoadBalancerAutoConfiguration" })
public class DubboLoadBalancedRestTemplateAutoConfiguration
implements BeanClassLoaderAware, SmartInitializingSingleton {
public class DubboLoadBalancedRestTemplateAutoConfiguration implements
BeanClassLoaderAware, ApplicationContextAware, SmartInitializingSingleton {
private static final Class<DubboTransported> DUBBO_TRANSPORTED_CLASS = DubboTransported.class;
@ -89,6 +92,9 @@ public class DubboLoadBalancedRestTemplateAutoConfiguration
@Autowired(required = false)
private Map<String, RestTemplate> restTemplates = Collections.emptyMap();
@Nullable
private ApplicationContext applicationContext;
private ClassLoader classLoader;
/**
@ -111,18 +117,21 @@ public class DubboLoadBalancedRestTemplateAutoConfiguration
* {@link SmartInitializingSingleton} beans or
* {@link RestTemplateCustomizer#customize(RestTemplate) customization})
*/
@EventListener(ApplicationStartedEvent.class)
public void adaptRestTemplates() {
@EventListener(ContextRefreshedEvent.class)
public void adaptRestTemplates(ContextRefreshedEvent event) {
DubboTransportedAttributesResolver attributesResolver = new DubboTransportedAttributesResolver(
environment);
if (event.getApplicationContext() == this.applicationContext) {
for (Map.Entry<String, RestTemplate> entry : restTemplates.entrySet()) {
String beanName = entry.getKey();
Map<String, Object> dubboTranslatedAttributes = getDubboTranslatedAttributes(
beanName, attributesResolver);
if (!CollectionUtils.isEmpty(dubboTranslatedAttributes)) {
adaptRestTemplate(entry.getValue(), dubboTranslatedAttributes);
DubboTransportedAttributesResolver attributesResolver = new DubboTransportedAttributesResolver(
environment);
for (Map.Entry<String, RestTemplate> entry : restTemplates.entrySet()) {
String beanName = entry.getKey();
Map<String, Object> dubboTranslatedAttributes = getDubboTranslatedAttributes(
beanName, attributesResolver);
if (!CollectionUtils.isEmpty(dubboTranslatedAttributes)) {
adaptRestTemplate(entry.getValue(), dubboTranslatedAttributes);
}
}
}
}
@ -132,7 +141,7 @@ public class DubboLoadBalancedRestTemplateAutoConfiguration
* {@link DubboTransported @DubboTransported}
*
* @param beanName the bean name of {@link LoadBalanced @LoadBalanced}
* {@link RestTemplate}
* {@link RestTemplate}
* @param attributesResolver {@link DubboTransportedAttributesResolver}
* @return non-null {@link Map}
*/
@ -144,10 +153,10 @@ public class DubboLoadBalancedRestTemplateAutoConfiguration
AnnotatedBeanDefinition annotatedBeanDefinition = (AnnotatedBeanDefinition) beanDefinition;
MethodMetadata factoryMethodMetadata = annotatedBeanDefinition
.getFactoryMethodMetadata();
attributes = factoryMethodMetadata != null
? Optional.ofNullable(factoryMethodMetadata
.getAnnotationAttributes(DUBBO_TRANSPORTED_CLASS_NAME)).orElse(attributes)
: Collections.emptyMap();
attributes = factoryMethodMetadata != null ? Optional
.ofNullable(factoryMethodMetadata
.getAnnotationAttributes(DUBBO_TRANSPORTED_CLASS_NAME))
.orElse(attributes) : Collections.emptyMap();
}
return attributesResolver.resolve(attributes);
}
@ -158,8 +167,8 @@ public class DubboLoadBalancedRestTemplateAutoConfiguration
*
* @param restTemplate {@link LoadBalanced @LoadBalanced} {@link RestTemplate} Bean
* @param dubboTranslatedAttributes the annotation dubboTranslatedAttributes
* {@link RestTemplate} bean being annotated
* {@link DubboTransported @DubboTransported}
* {@link RestTemplate} bean being annotated
* {@link DubboTransported @DubboTransported}
*/
private void adaptRestTemplate(RestTemplate restTemplate,
Map<String, Object> dubboTranslatedAttributes) {
@ -188,4 +197,9 @@ public class DubboLoadBalancedRestTemplateAutoConfiguration
this.classLoader = classLoader;
}
@Override
public void setApplicationContext(ApplicationContext applicationContext) {
this.applicationContext = applicationContext;
}
}