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Ensure ordering of feign ribbon client configuration.

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On certain platforms and compilers the generated bytecode is not what
the configuration expected. By moving inner classes to the upper level
and using @Import this will guarantee the proper order.

fixes gh-2086
This commit is contained in:
Spencer Gibb
2017-07-20 10:02:05 -06:00
parent 6b530b0269
commit 97f1655ff7
6 changed files with 160 additions and 66 deletions
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38
spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/feign/ribbon/DefaultFeignLoadBalancedConfiguration.java Normal file
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@@ -0,0 +1,38 @@
/*
* Copyright 2013-2017 the original author or authors.
*
* Licensed 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.springframework.cloud.netflix.feign.ribbon;
import feign.Client;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.cloud.netflix.ribbon.SpringClientFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* @author Spencer Gibb
*/
@Configuration
class DefaultFeignLoadBalancedConfiguration {
@Bean
@ConditionalOnMissingBean
public Client feignClient(CachingSpringLoadBalancerFactory cachingFactory,
SpringClientFactory clientFactory) {
return new LoadBalancerFeignClient(new Client.Default(null, null),
cachingFactory, clientFactory);
}
}

67
spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/feign/ribbon/FeignRibbonClientAutoConfiguration.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2013-2015 the original author or authors.
* Copyright 2013-2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -16,27 +16,22 @@
package org.springframework.cloud.netflix.feign.ribbon;
import org.apache.http.client.HttpClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.cloud.client.loadbalancer.LoadBalancedRetryPolicyFactory;
import org.springframework.cloud.netflix.feign.FeignAutoConfiguration;
import org.springframework.cloud.netflix.ribbon.SpringClientFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.context.annotation.Primary;
import com.netflix.loadbalancer.ILoadBalancer;
import feign.Client;
import feign.Feign;
import feign.Request;
import feign.httpclient.ApacheHttpClient;
import feign.okhttp.OkHttpClient;
/**
* Autoconfiguration to be activated if Feign is in use and needs to be use Ribbon as a
@@ -47,6 +42,11 @@ import feign.okhttp.OkHttpClient;
@ConditionalOnClass({ ILoadBalancer.class, Feign.class })
@Configuration
@AutoConfigureBefore(FeignAutoConfiguration.class)
//Order is important here, last should be the default, first should be optional
// see https://github.com/spring-cloud/spring-cloud-netflix/issues/2086#issuecomment-316281653
@Import({ HttpClientFeignLoadBalancedConfiguration.class,
OkHttpFeignLoadBalancedConfiguration.class,
DefaultFeignLoadBalancedConfiguration.class })
public class FeignRibbonClientAutoConfiguration {
@Bean
@@ -65,63 +65,10 @@ public class FeignRibbonClientAutoConfiguration {
return new CachingSpringLoadBalancerFactory(factory, retryPolicyFactory, true);
}
@Bean
@ConditionalOnMissingBean
public Client feignClient(CachingSpringLoadBalancerFactory cachingFactory,
SpringClientFactory clientFactory) {
return new LoadBalancerFeignClient(new Client.Default(null, null),
cachingFactory, clientFactory);
}
@Bean
@ConditionalOnMissingBean
public Request.Options feignRequestOptions() {
return LoadBalancerFeignClient.DEFAULT_OPTIONS;
}
@Configuration
@ConditionalOnClass(ApacheHttpClient.class)
@ConditionalOnProperty(value = "feign.httpclient.enabled", matchIfMissing = true)
protected static class HttpClientFeignLoadBalancedConfiguration {
@Autowired(required = false)
private HttpClient httpClient;
@Bean
@ConditionalOnMissingBean(Client.class)
public Client feignClient(CachingSpringLoadBalancerFactory cachingFactory,
SpringClientFactory clientFactory) {
ApacheHttpClient delegate;
if (this.httpClient != null) {
delegate = new ApacheHttpClient(this.httpClient);
}
else {
delegate = new ApacheHttpClient();
}
return new LoadBalancerFeignClient(delegate, cachingFactory, clientFactory);
}
}
@Configuration
@ConditionalOnClass(OkHttpClient.class)
@ConditionalOnProperty(value = "feign.okhttp.enabled", matchIfMissing = true)
protected static class OkHttpFeignLoadBalancedConfiguration {
@Autowired(required = false)
private okhttp3.OkHttpClient okHttpClient;
@Bean
@ConditionalOnMissingBean(Client.class)
public Client feignClient(CachingSpringLoadBalancerFactory cachingFactory,
SpringClientFactory clientFactory) {
OkHttpClient delegate;
if (this.okHttpClient != null) {
delegate = new OkHttpClient(this.okHttpClient);
}
else {
delegate = new OkHttpClient();
}
return new LoadBalancerFeignClient(delegate, cachingFactory, clientFactory);
}
}
}

54
spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/feign/ribbon/HttpClientFeignLoadBalancedConfiguration.java Normal file
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@@ -0,0 +1,54 @@
/*
* Copyright 2013-2017 the original author or authors.
*
* Licensed 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.springframework.cloud.netflix.feign.ribbon;
import feign.Client;
import feign.httpclient.ApacheHttpClient;
import org.apache.http.client.HttpClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.cloud.netflix.ribbon.SpringClientFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* @author Spencer Gibb
*/
@Configuration
@ConditionalOnClass(ApacheHttpClient.class)
@ConditionalOnProperty(value = "feign.httpclient.enabled", matchIfMissing = true)
class HttpClientFeignLoadBalancedConfiguration {
@Autowired(required = false)
private HttpClient httpClient;
@Bean
@ConditionalOnMissingBean(Client.class)
public Client feignClient(CachingSpringLoadBalancerFactory cachingFactory,
SpringClientFactory clientFactory) {
ApacheHttpClient delegate;
if (this.httpClient != null) {
delegate = new ApacheHttpClient(this.httpClient);
} else {
delegate = new ApacheHttpClient();
}
return new LoadBalancerFeignClient(delegate, cachingFactory, clientFactory);
}
}

53
spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/feign/ribbon/OkHttpFeignLoadBalancedConfiguration.java Normal file
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@@ -0,0 +1,53 @@
/*
* Copyright 2013-2017 the original author or authors.
*
* Licensed 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.springframework.cloud.netflix.feign.ribbon;
import feign.Client;
import feign.okhttp.OkHttpClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.cloud.netflix.ribbon.SpringClientFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* @author Spencer Gibb
*/
@Configuration
@ConditionalOnClass(OkHttpClient.class)
@ConditionalOnProperty(value = "feign.okhttp.enabled", matchIfMissing = true)
class OkHttpFeignLoadBalancedConfiguration {
@Autowired(required = false)
private okhttp3.OkHttpClient okHttpClient;
@Bean
@ConditionalOnMissingBean(Client.class)
public Client feignClient(CachingSpringLoadBalancerFactory cachingFactory,
SpringClientFactory clientFactory) {
OkHttpClient delegate;
if (this.okHttpClient != null) {
delegate = new OkHttpClient(this.okHttpClient);
} else {
delegate = new OkHttpClient();
}
return new LoadBalancerFeignClient(delegate, cachingFactory, clientFactory);
}
}

12
spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/ribbon/apache/HttpClientRibbonConfiguration.java
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@@ -17,11 +17,6 @@
package org.springframework.cloud.netflix.ribbon.apache;
import com.netflix.client.AbstractLoadBalancerAwareClient;
import com.netflix.client.RetryHandler;
import com.netflix.client.config.IClientConfig;
import com.netflix.loadbalancer.ILoadBalancer;
import com.netflix.servo.monitor.Monitors;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
@@ -32,10 +27,17 @@ import org.springframework.cloud.netflix.ribbon.ServerIntrospector;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import com.netflix.client.AbstractLoadBalancerAwareClient;
import com.netflix.client.RetryHandler;
import com.netflix.client.config.IClientConfig;
import com.netflix.loadbalancer.ILoadBalancer;
import com.netflix.servo.monitor.Monitors;
/**
* @author Spencer Gibb
*/
@Configuration
@ConditionalOnClass(name = "org.apache.http.client.HttpClient")
@ConditionalOnProperty(name = "ribbon.httpclient.enabled", matchIfMissing = true)
public class HttpClientRibbonConfiguration {
@Value("${ribbon.client.name}")

2
spring-cloud-netflix-core/src/test/java/org/springframework/cloud/netflix/feign/valid/FeignOkHttpTests.java
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@@ -63,7 +63,7 @@ import lombok.NoArgsConstructor;
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = FeignOkHttpTests.Application.class, webEnvironment = WebEnvironment.RANDOM_PORT, value = {
"spring.application.name=feignclienttest", "feign.hystrix.enabled=false",
"feign.okhttp.enabled=true" })
"feign.httpclient.enabled=false", "feign.okhttp.enabled=true" })
@DirtiesContext
public class FeignOkHttpTests {