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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.bulkhead.autoconfigure;

import io.github.resilience4j.bulkhead.event.BulkheadEvent;
import io.github.resilience4j.consumer.DefaultEventConsumerRegistry;
import io.github.resilience4j.consumer.EventConsumerRegistry;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * {@link Configuration Configuration} for resilience4j-bulkhead.
 */
@Configuration
public class BulkheadConfigurationOnMissingBean extends AbstractBulkheadConfigurationOnMissingBean {

    /**
     * The EventConsumerRegistry is used to manage EventConsumer instances. The
     * EventConsumerRegistry is used by the BulkheadHealthIndicator to show the latest Bulkhead
     * events for each Bulkhead instance.
     *
     * @return a default EventConsumerRegistry {@link DefaultEventConsumerRegistry}
     */
    @Bean
    @ConditionalOnMissingBean(value = BulkheadEvent.class, parameterizedContainer = EventConsumerRegistry.class)
    public EventConsumerRegistry bulkheadEventConsumerRegistry() {
        return bulkheadConfiguration.bulkheadEventConsumerRegistry();
    }
}