spring ConnectionPoolMetricsAutoConfiguration 源码
springboot ConnectionPoolMetricsAutoConfiguration 代码
文件路径：/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/metrics/r2dbc/ConnectionPoolMetricsAutoConfiguration.java
/*
* Copyright 2012-2022 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.r2dbc;
import java.util.Map;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Tags;
import io.r2dbc.pool.ConnectionPool;
import io.r2dbc.spi.ConnectionFactory;
import io.r2dbc.spi.Wrapped;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.actuate.autoconfigure.metrics.MetricsAutoConfiguration;
import org.springframework.boot.actuate.autoconfigure.metrics.export.simple.SimpleMetricsExportAutoConfiguration;
import org.springframework.boot.actuate.metrics.r2dbc.ConnectionPoolMetrics;
import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.r2dbc.R2dbcAutoConfiguration;
/**
* {@link EnableAutoConfiguration Auto-configuration} for metrics on all available
* {@link ConnectionFactory R2DBC connection factories}.
*
* @author Tadaya Tsuyukubo
* @author Stephane Nicoll
* @since 2.3.0
*/
@AutoConfiguration(after = { MetricsAutoConfiguration.class, SimpleMetricsExportAutoConfiguration.class,
R2dbcAutoConfiguration.class })
@ConditionalOnClass({ ConnectionPool.class, MeterRegistry.class })
@ConditionalOnBean({ ConnectionFactory.class, MeterRegistry.class })
public class ConnectionPoolMetricsAutoConfiguration {
@Autowired
public void bindConnectionPoolsToRegistry(Map<String, ConnectionFactory> connectionFactories,
MeterRegistry registry) {
connectionFactories.forEach((beanName, connectionFactory) -> {
ConnectionPool pool = extractPool(connectionFactory);
if (pool != null) {
new ConnectionPoolMetrics(pool, beanName, Tags.empty()).bindTo(registry);
}
});
}
private ConnectionPool extractPool(Object candidate) {
if (candidate instanceof ConnectionPool connectionPool) {
return connectionPool;
}
if (candidate instanceof Wrapped) {
return extractPool(((Wrapped<?>) candidate).unwrap());
}
return null;
}
}
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- 本文标签： Java Spring Spring Boot
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