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Spring Boot Actuator AutoConfigure
/*
* Copyright 2012-2019 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.orm.jpa;
import java.util.Collections;
import java.util.Map;
import javax.persistence.EntityManagerFactory;
import javax.persistence.PersistenceException;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.binder.jpa.HibernateMetrics;
import org.hibernate.SessionFactory;
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.autoconfigure.AutoConfigureAfter;
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.orm.jpa.HibernateJpaAutoConfiguration;
import org.springframework.context.annotation.Configuration;
import org.springframework.util.StringUtils;
/**
* {@link EnableAutoConfiguration Auto-configuration} for metrics on all available
* Hibernate {@link EntityManagerFactory} instances that have statistics enabled.
*
* @author Rui Figueira
* @author Stephane Nicoll
* @since 2.1.0
*/
@Configuration(proxyBeanMethods = false)
@AutoConfigureAfter({ MetricsAutoConfiguration.class, HibernateJpaAutoConfiguration.class,
SimpleMetricsExportAutoConfiguration.class })
@ConditionalOnClass({ EntityManagerFactory.class, SessionFactory.class, MeterRegistry.class })
@ConditionalOnBean({ EntityManagerFactory.class, MeterRegistry.class })
public class HibernateMetricsAutoConfiguration {
private static final String ENTITY_MANAGER_FACTORY_SUFFIX = "entityManagerFactory";
@Autowired
public void bindEntityManagerFactoriesToRegistry(Map entityManagerFactories,
MeterRegistry registry) {
entityManagerFactories.forEach((name, factory) -> bindEntityManagerFactoryToRegistry(name, factory, registry));
}
private void bindEntityManagerFactoryToRegistry(String beanName, EntityManagerFactory entityManagerFactory,
MeterRegistry registry) {
String entityManagerFactoryName = getEntityManagerFactoryName(beanName);
try {
new HibernateMetrics(entityManagerFactory.unwrap(SessionFactory.class), entityManagerFactoryName,
Collections.emptyList()).bindTo(registry);
}
catch (PersistenceException ex) {
// Continue
}
}
/**
* Get the name of an {@link EntityManagerFactory} based on its {@code beanName}.
* @param beanName the name of the {@link EntityManagerFactory} bean
* @return a name for the given entity manager factory
*/
private String getEntityManagerFactoryName(String beanName) {
if (beanName.length() > ENTITY_MANAGER_FACTORY_SUFFIX.length()
&& StringUtils.endsWithIgnoreCase(beanName, ENTITY_MANAGER_FACTORY_SUFFIX)) {
return beanName.substring(0, beanName.length() - ENTITY_MANAGER_FACTORY_SUFFIX.length());
}
return beanName;
}
}