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Advance adapt Dubbo restTemplates

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This commit is contained in:
echooymxq 2019-09-03 15:35:31 +08:00
parent 8e1468d97c
commit 7a355cb840
1 changed files with 25 additions and 11 deletions
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36
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.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.boot.autoconfigure.AutoConfigureAfter; import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass; 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.LoadBalanced;
import org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor; import org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor;
import org.springframework.cloud.client.loadbalancer.RestTemplateCustomizer; import org.springframework.cloud.client.loadbalancer.RestTemplateCustomizer;
import org.springframework.cloud.client.loadbalancer.RetryLoadBalancerInterceptor; 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.annotation.Configuration;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.context.event.EventListener; import org.springframework.context.event.EventListener;
import org.springframework.core.env.Environment; import org.springframework.core.env.Environment;
import org.springframework.core.type.MethodMetadata; import org.springframework.core.type.MethodMetadata;
import org.springframework.http.client.ClientHttpRequestInterceptor; import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.lang.Nullable;
import org.springframework.util.CollectionUtils; import org.springframework.util.CollectionUtils;
import org.springframework.web.client.RestTemplate; import org.springframework.web.client.RestTemplate;
@ -57,7 +60,7 @@ import com.alibaba.cloud.dubbo.service.DubboGenericServiceFactory;
@AutoConfigureAfter(name = { @AutoConfigureAfter(name = {
"org.springframework.cloud.client.loadbalancer.LoadBalancerAutoConfiguration" }) "org.springframework.cloud.client.loadbalancer.LoadBalancerAutoConfiguration" })
public class DubboLoadBalancedRestTemplateAutoConfiguration public class DubboLoadBalancedRestTemplateAutoConfiguration
implements BeanClassLoaderAware, SmartInitializingSingleton { implements BeanClassLoaderAware, ApplicationContextAware, SmartInitializingSingleton {
private static final Class<DubboTransported> DUBBO_TRANSPORTED_CLASS = DubboTransported.class; private static final Class<DubboTransported> DUBBO_TRANSPORTED_CLASS = DubboTransported.class;
@ -89,6 +92,9 @@ public class DubboLoadBalancedRestTemplateAutoConfiguration
@Autowired(required = false) @Autowired(required = false)
private Map<String, RestTemplate> restTemplates = Collections.emptyMap(); private Map<String, RestTemplate> restTemplates = Collections.emptyMap();
@Nullable
private ApplicationContext applicationContext;
private ClassLoader classLoader; private ClassLoader classLoader;
/** /**
@ -111,18 +117,21 @@ public class DubboLoadBalancedRestTemplateAutoConfiguration
* {@link SmartInitializingSingleton} beans or * {@link SmartInitializingSingleton} beans or
* {@link RestTemplateCustomizer#customize(RestTemplate) customization}) * {@link RestTemplateCustomizer#customize(RestTemplate) customization})
*/ */
@EventListener(ApplicationStartedEvent.class) @EventListener(ContextRefreshedEvent.class)
public void adaptRestTemplates() { public void adaptRestTemplates(ContextRefreshedEvent event) {
DubboTransportedAttributesResolver attributesResolver = new DubboTransportedAttributesResolver( if (event.getApplicationContext() == this.applicationContext) {
DubboTransportedAttributesResolver attributesResolver = new DubboTransportedAttributesResolver(
environment); environment);
for (Map.Entry<String, RestTemplate> entry : restTemplates.entrySet()) { for (Map.Entry<String, RestTemplate> entry : restTemplates.entrySet()) {
String beanName = entry.getKey(); String beanName = entry.getKey();
Map<String, Object> dubboTranslatedAttributes = getDubboTranslatedAttributes( Map<String, Object> dubboTranslatedAttributes = getDubboTranslatedAttributes(
beanName, attributesResolver); beanName, attributesResolver);
if (!CollectionUtils.isEmpty(dubboTranslatedAttributes)) { if (!CollectionUtils.isEmpty(dubboTranslatedAttributes)) {
adaptRestTemplate(entry.getValue(), dubboTranslatedAttributes); adaptRestTemplate(entry.getValue(), dubboTranslatedAttributes);
}
} }
} }
} }
@ -188,4 +197,9 @@ public class DubboLoadBalancedRestTemplateAutoConfiguration
this.classLoader = classLoader; this.classLoader = classLoader;
} }
@Override
public void setApplicationContext(ApplicationContext applicationContext) {
this.applicationContext = applicationContext;
}
} }