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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 2017 Bohdan Storozhuk
 *
 * 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.ratelimiter.autoconfigure;

import org.springframework.boot.actuate.autoconfigure.metrics.MetricsAutoConfiguration;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import io.github.resilience4j.circuitbreaker.autoconfigure.CircuitBreakerAutoConfiguration;
import io.github.resilience4j.micrometer.RateLimiterMetrics;
import io.github.resilience4j.ratelimiter.RateLimiterRegistry;
import io.micrometer.core.instrument.MeterRegistry;

/**
 * {@link org.springframework.boot.autoconfigure.EnableAutoConfiguration
 * Auto-configuration} for resilience4j-metrics.
 */
@Configuration
@ConditionalOnClass(MetricsAutoConfiguration.class)
@AutoConfigureAfter(value = {CircuitBreakerAutoConfiguration.class, MetricsAutoConfiguration.class})
public class RateLimiterMetricsAutoConfiguration {
    @Bean
    public RateLimiterMetrics registerRateLimiterMetrics(RateLimiterRegistry rateLimiterRegistry, MeterRegistry meterRegistry) {
        RateLimiterMetrics rateLimiterMetrics = RateLimiterMetrics.ofRateLimiterRegistry(rateLimiterRegistry);
        rateLimiterMetrics.bindTo(meterRegistry);
        return rateLimiterMetrics;
    }
}