spring CompositeMeterRegistryConfiguration 源码
springboot CompositeMeterRegistryConfiguration 代码
文件路径：/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/CompositeMeterRegistryConfiguration.java
/*
* Copyright 2012-2020 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.
*/
package org.springframework.boot.actuate.autoconfigure.metrics;
import java.util.List;
import io.micrometer.core.instrument.Clock;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.composite.CompositeMeterRegistry;
import org.springframework.boot.actuate.autoconfigure.metrics.CompositeMeterRegistryConfiguration.MultipleNonPrimaryMeterRegistriesCondition;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnSingleCandidate;
import org.springframework.boot.autoconfigure.condition.NoneNestedConditions;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Conditional;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
/**
* Configuration for a {@link CompositeMeterRegistry}.
*
* @author Andy Wilkinson
*/
@Configuration(proxyBeanMethods = false)
@Conditional(MultipleNonPrimaryMeterRegistriesCondition.class)
class CompositeMeterRegistryConfiguration {
@Bean
@Primary
AutoConfiguredCompositeMeterRegistry compositeMeterRegistry(Clock clock, List<MeterRegistry> registries) {
return new AutoConfiguredCompositeMeterRegistry(clock, registries);
}
static class MultipleNonPrimaryMeterRegistriesCondition extends NoneNestedConditions {
MultipleNonPrimaryMeterRegistriesCondition() {
super(ConfigurationPhase.REGISTER_BEAN);
}
@ConditionalOnMissingBean(MeterRegistry.class)
static class NoMeterRegistryCondition {
}
@ConditionalOnSingleCandidate(MeterRegistry.class)
static class SingleInjectableMeterRegistry {
}
}
}
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- 本文标签： Java Spring Spring Boot
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