io.github.resilience4j.circuitbreaker.autoconfigure.AbstractCircuitBreakerConfigurationOnMissingBean Maven / Gradle / Ivy

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Resilience4j is a lightweight, easy-to-use fault tolerance library designed for Java8 and functional programming
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/*
 * Copyright 2019 Mahmoud Romeh
 *
 * 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 io.github.resilience4j.circuitbreaker.autoconfigure;

import io.github.resilience4j.circuitbreaker.CircuitBreaker;
import io.github.resilience4j.circuitbreaker.CircuitBreakerRegistry;
import io.github.resilience4j.circuitbreaker.configure.*;
import io.github.resilience4j.circuitbreaker.event.CircuitBreakerEvent;
import io.github.resilience4j.common.CompositeCustomizer;
import io.github.resilience4j.common.circuitbreaker.configuration.CircuitBreakerConfigCustomizer;
import io.github.resilience4j.consumer.EventConsumerRegistry;
import io.github.resilience4j.core.registry.RegistryEventConsumer;
import io.github.resilience4j.fallback.FallbackDecorators;
import io.github.resilience4j.fallback.autoconfigure.FallbackConfigurationOnMissingBean;
import io.github.resilience4j.spelresolver.SpelResolver;
import io.github.resilience4j.spelresolver.autoconfigure.SpelResolverConfigurationOnMissingBean;
import io.github.resilience4j.utils.AspectJOnClasspathCondition;
import io.github.resilience4j.utils.ReactorOnClasspathCondition;
import io.github.resilience4j.utils.RxJava2OnClasspathCondition;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.*;

import java.util.List;
import java.util.Optional;

@Configuration
@Import({FallbackConfigurationOnMissingBean.class, SpelResolverConfigurationOnMissingBean.class})
public abstract class AbstractCircuitBreakerConfigurationOnMissingBean {

    protected final CircuitBreakerConfiguration circuitBreakerConfiguration;
    protected final CircuitBreakerConfigurationProperties circuitBreakerProperties;

    public AbstractCircuitBreakerConfigurationOnMissingBean(
        CircuitBreakerConfigurationProperties circuitBreakerProperties) {
        this.circuitBreakerProperties = circuitBreakerProperties;
        this.circuitBreakerConfiguration = new CircuitBreakerConfiguration(
            circuitBreakerProperties);
    }

    @Bean
    @ConditionalOnMissingBean(name = "compositeCircuitBreakerCustomizer")
    @Qualifier("compositeCircuitBreakerCustomizer")
    public CompositeCustomizer compositeCircuitBreakerCustomizer(
        @Autowired(required = false) List customizers) {
        return new CompositeCustomizer<>(customizers);
    }

    @Bean
    @ConditionalOnMissingBean
    public CircuitBreakerRegistry circuitBreakerRegistry(
        EventConsumerRegistry eventConsumerRegistry,
        RegistryEventConsumer circuitBreakerRegistryEventConsumer,
        @Qualifier("compositeCircuitBreakerCustomizer") CompositeCustomizer compositeCircuitBreakerCustomizer) {
        return circuitBreakerConfiguration
            .circuitBreakerRegistry(eventConsumerRegistry, circuitBreakerRegistryEventConsumer,
                compositeCircuitBreakerCustomizer);
    }

    @Bean
    @Primary
    public RegistryEventConsumer circuitBreakerRegistryEventConsumer(
        Optional>> optionalRegistryEventConsumers) {
        return circuitBreakerConfiguration
            .circuitBreakerRegistryEventConsumer(optionalRegistryEventConsumers);
    }

    @Bean
    @ConditionalOnMissingBean
    @Conditional(value = {AspectJOnClasspathCondition.class})
    public CircuitBreakerAspect circuitBreakerAspect(
        CircuitBreakerRegistry circuitBreakerRegistry,
        @Autowired(required = false) List circuitBreakerAspectExtList,
        FallbackDecorators fallbackDecorators,
        SpelResolver spelResolver
    ) {
        return circuitBreakerConfiguration
            .circuitBreakerAspect(circuitBreakerRegistry, circuitBreakerAspectExtList,
                fallbackDecorators, spelResolver);
    }

    @Bean
    @Conditional(value = {RxJava2OnClasspathCondition.class, AspectJOnClasspathCondition.class})
    @ConditionalOnMissingBean
    public RxJava2CircuitBreakerAspectExt rxJava2CircuitBreakerAspect() {
        return circuitBreakerConfiguration.rxJava2CircuitBreakerAspect();
    }

    @Bean
    @Conditional(value = {ReactorOnClasspathCondition.class, AspectJOnClasspathCondition.class})
    @ConditionalOnMissingBean
    public ReactorCircuitBreakerAspectExt reactorCircuitBreakerAspect() {
        return circuitBreakerConfiguration.reactorCircuitBreakerAspect();
    }

}