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Initial set of changes to add a circuit breaker filter using Spring C…
…loud CircuitBreaker
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Ryan Baxter
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Nov 5, 2019
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93 changes: 93 additions & 0 deletions
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...java/org/springframework/cloud/gateway/config/GatewayCircuitBreakerAutoConfiguration.java
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| /* | ||
| * Copyright 2013-2019 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 | ||
| * | ||
| * https://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. | ||
| */ | ||
|
|
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| package org.springframework.cloud.gateway.config; | ||
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| import org.springframework.beans.factory.ObjectProvider; | ||
| import org.springframework.boot.autoconfigure.AutoConfigureAfter; | ||
| import org.springframework.boot.autoconfigure.condition.ConditionalOnBean; | ||
| 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.circuitbreaker.resilience4j.ReactiveResilience4JAutoConfiguration; | ||
| import org.springframework.cloud.circuitbreaker.resilience4j.ReactiveResilience4JCircuitBreakerFactory; | ||
| import org.springframework.cloud.client.circuitbreaker.ReactiveCircuitBreakerFactory; | ||
| import org.springframework.cloud.gateway.filter.factory.FallbackHeadersGatewayFilterFactory; | ||
| import org.springframework.cloud.gateway.filter.factory.SpringCloudCircuitBreakerHystrixFilterFactory; | ||
| import org.springframework.cloud.gateway.filter.factory.SpringCloudCircuitBreakerResilience4JFilterFactory; | ||
| import org.springframework.cloud.netflix.hystrix.HystrixCircuitBreakerAutoConfiguration; | ||
| import org.springframework.cloud.netflix.hystrix.ReactiveHystrixCircuitBreakerFactory; | ||
| import org.springframework.context.annotation.Bean; | ||
| import org.springframework.context.annotation.Configuration; | ||
| import org.springframework.web.reactive.DispatcherHandler; | ||
|
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| /** | ||
| * @author Ryan Baxter | ||
| */ | ||
| @Configuration | ||
| @ConditionalOnProperty(name = "spring.cloud.gateway.enabled", matchIfMissing = true) | ||
| @AutoConfigureAfter({ ReactiveResilience4JAutoConfiguration.class, | ||
| HystrixCircuitBreakerAutoConfiguration.class }) | ||
| @ConditionalOnClass({ DispatcherHandler.class, | ||
| ReactiveResilience4JAutoConfiguration.class, | ||
| HystrixCircuitBreakerAutoConfiguration.class }) | ||
| public class GatewayCircuitBreakerAutoConfiguration { | ||
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| @Configuration | ||
| @ConditionalOnClass({ ReactiveCircuitBreakerFactory.class, | ||
| ReactiveHystrixCircuitBreakerFactory.class }) | ||
| protected static class SpringCloudCircuitBreakerHystrixConfiguration { | ||
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| @Bean | ||
| @ConditionalOnBean(ReactiveHystrixCircuitBreakerFactory.class) | ||
| public SpringCloudCircuitBreakerHystrixFilterFactory springCloudCircuitBreakerHystrixFilterFactory( | ||
| ReactiveHystrixCircuitBreakerFactory reactiveCircuitBreakerFactory, | ||
| ObjectProvider<DispatcherHandler> dispatcherHandler) { | ||
| return new SpringCloudCircuitBreakerHystrixFilterFactory( | ||
| reactiveCircuitBreakerFactory, dispatcherHandler); | ||
| } | ||
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| @Bean | ||
| @ConditionalOnMissingBean(FallbackHeadersGatewayFilterFactory.class) | ||
| public FallbackHeadersGatewayFilterFactory fallbackHeadersGatewayFilterFactory() { | ||
| return new FallbackHeadersGatewayFilterFactory(); | ||
| } | ||
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| } | ||
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| @Configuration | ||
| @ConditionalOnClass({ ReactiveCircuitBreakerFactory.class, | ||
| ReactiveResilience4JCircuitBreakerFactory.class }) | ||
| protected static class Resilience4JConfiguration { | ||
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| @Bean | ||
| @ConditionalOnMissingBean(FallbackHeadersGatewayFilterFactory.class) | ||
| public FallbackHeadersGatewayFilterFactory fallbackHeadersGatewayFilterFactory() { | ||
| return new FallbackHeadersGatewayFilterFactory(); | ||
| } | ||
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| @Bean | ||
| @ConditionalOnBean(ReactiveResilience4JCircuitBreakerFactory.class) | ||
| public SpringCloudCircuitBreakerResilience4JFilterFactory springCloudCircuitBreakerResilience4JFilterFactory( | ||
| ReactiveResilience4JCircuitBreakerFactory reactiveCircuitBreakerFactory, | ||
| ObjectProvider<DispatcherHandler> dispatcherHandler) { | ||
| return new SpringCloudCircuitBreakerResilience4JFilterFactory( | ||
| reactiveCircuitBreakerFactory, dispatcherHandler); | ||
| } | ||
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| } | ||
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| } |
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