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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.observation;
import java.util.List;
import io.micrometer.observation.GlobalObservationConvention;
import io.micrometer.observation.ObservationFilter;
import io.micrometer.observation.ObservationHandler;
import io.micrometer.observation.ObservationPredicate;
import io.micrometer.observation.ObservationRegistry;
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.boot.util.LambdaSafe;
/**
* Configurer to apply {@link ObservationRegistryCustomizer customizers} to
* {@link ObservationRegistry observation registries}. Installs
* {@link ObservationPredicate observation predicates} and
* {@link GlobalObservationConvention global observation conventions} into the
* {@link ObservationRegistry}. Also uses a {@link ObservationHandlerGrouping} to group
* handlers, which are then added to the {@link ObservationRegistry}.
*
* @author Moritz Halbritter
*/
class ObservationRegistryConfigurer {
private final ObjectProvider> customizers;
private final ObjectProvider observationPredicates;
private final ObjectProvider> observationConventions;
private final ObjectProvider> observationHandlers;
private final ObjectProvider observationHandlerGrouping;
private final ObjectProvider observationFilters;
ObservationRegistryConfigurer(ObjectProvider> customizers,
ObjectProvider observationPredicates,
ObjectProvider> observationConventions,
ObjectProvider> observationHandlers,
ObjectProvider observationHandlerGrouping,
ObjectProvider observationFilters) {
this.customizers = customizers;
this.observationPredicates = observationPredicates;
this.observationConventions = observationConventions;
this.observationHandlers = observationHandlers;
this.observationHandlerGrouping = observationHandlerGrouping;
this.observationFilters = observationFilters;
}
void configure(ObservationRegistry registry) {
registerObservationPredicates(registry);
registerGlobalObservationConventions(registry);
registerHandlers(registry);
registerFilters(registry);
customize(registry);
}
private void registerHandlers(ObservationRegistry registry) {
this.observationHandlerGrouping.ifAvailable(
(grouping) -> grouping.apply(asOrderedList(this.observationHandlers), registry.observationConfig()));
}
private void registerObservationPredicates(ObservationRegistry registry) {
this.observationPredicates.orderedStream().forEach(registry.observationConfig()::observationPredicate);
}
private void registerGlobalObservationConventions(ObservationRegistry registry) {
this.observationConventions.orderedStream().forEach(registry.observationConfig()::observationConvention);
}
private void registerFilters(ObservationRegistry registry) {
this.observationFilters.orderedStream().forEach(registry.observationConfig()::observationFilter);
}
@SuppressWarnings("unchecked")
private void customize(ObservationRegistry registry) {
LambdaSafe.callbacks(ObservationRegistryCustomizer.class, asOrderedList(this.customizers), registry)
.withLogger(ObservationRegistryConfigurer.class)
.invoke((customizer) -> customizer.customize(registry));
}
private List asOrderedList(ObjectProvider provider) {
return provider.orderedStream().toList();
}
}