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Spring Boot Actuator AutoConfigure
/*
* Copyright 2012-2023 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.cache;
import java.util.Collection;
import java.util.Map;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Tag;
import org.springframework.boot.actuate.metrics.cache.CacheMeterBinderProvider;
import org.springframework.boot.actuate.metrics.cache.CacheMetricsRegistrar;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.cache.Cache;
import org.springframework.cache.CacheManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.util.StringUtils;
/**
* Configure a {@link CacheMetricsRegistrar} and register all available {@link Cache
* caches}.
*
* @author Stephane Nicoll
*/
@Configuration(proxyBeanMethods = false)
@ConditionalOnBean({ CacheMeterBinderProvider.class, MeterRegistry.class })
class CacheMetricsRegistrarConfiguration {
private static final String CACHE_MANAGER_SUFFIX = "cacheManager";
private final MeterRegistry registry;
private final CacheMetricsRegistrar cacheMetricsRegistrar;
private final Map cacheManagers;
CacheMetricsRegistrarConfiguration(MeterRegistry registry, Collection> binderProviders,
Map cacheManagers) {
this.registry = registry;
this.cacheManagers = cacheManagers;
this.cacheMetricsRegistrar = new CacheMetricsRegistrar(this.registry, binderProviders);
bindCachesToRegistry();
}
@Bean
CacheMetricsRegistrar cacheMetricsRegistrar() {
return this.cacheMetricsRegistrar;
}
private void bindCachesToRegistry() {
this.cacheManagers.forEach(this::bindCacheManagerToRegistry);
}
private void bindCacheManagerToRegistry(String beanName, CacheManager cacheManager) {
cacheManager.getCacheNames()
.forEach((cacheName) -> bindCacheToRegistry(beanName, cacheManager.getCache(cacheName)));
}
private void bindCacheToRegistry(String beanName, Cache cache) {
Tag cacheManagerTag = Tag.of("cache.manager", getCacheManagerName(beanName));
this.cacheMetricsRegistrar.bindCacheToRegistry(cache, cacheManagerTag);
}
/**
* Get the name of a {@link CacheManager} based on its {@code beanName}.
* @param beanName the name of the {@link CacheManager} bean
* @return a name for the given cache manager
*/
private String getCacheManagerName(String beanName) {
if (beanName.length() > CACHE_MANAGER_SUFFIX.length()
&& StringUtils.endsWithIgnoreCase(beanName, CACHE_MANAGER_SUFFIX)) {
return beanName.substring(0, beanName.length() - CACHE_MANAGER_SUFFIX.length());
}
return beanName;
}
}