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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;
import java.util.List;
import java.util.stream.Collectors;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Metrics;
import io.micrometer.core.instrument.binder.MeterBinder;
import io.micrometer.core.instrument.composite.CompositeMeterRegistry;
import io.micrometer.core.instrument.config.MeterFilter;
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.boot.util.LambdaSafe;
/**
* Configurer to apply {@link MeterRegistryCustomizer customizers}, {@link MeterFilter
* filters}, {@link MeterBinder binders} and {@link Metrics#addRegistry global
* registration} to {@link MeterRegistry meter registries}.
*
* @author Jon Schneider
* @author Phillip Webb
*/
class MeterRegistryConfigurer {
private final ObjectProvider> customizers;
private final ObjectProvider filters;
private final ObjectProvider binders;
private final boolean addToGlobalRegistry;
private final boolean hasCompositeMeterRegistry;
MeterRegistryConfigurer(ObjectProvider> customizers, ObjectProvider filters,
ObjectProvider binders, boolean addToGlobalRegistry, boolean hasCompositeMeterRegistry) {
this.customizers = customizers;
this.filters = filters;
this.binders = binders;
this.addToGlobalRegistry = addToGlobalRegistry;
this.hasCompositeMeterRegistry = hasCompositeMeterRegistry;
}
void configure(MeterRegistry registry) {
// Customizers must be applied before binders, as they may add custom
// tags or alter timer or summary configuration.
customize(registry);
addFilters(registry);
if (!this.hasCompositeMeterRegistry || registry instanceof CompositeMeterRegistry) {
addBinders(registry);
}
if (this.addToGlobalRegistry && registry != Metrics.globalRegistry) {
Metrics.addRegistry(registry);
}
}
@SuppressWarnings("unchecked")
private void customize(MeterRegistry registry) {
LambdaSafe.callbacks(MeterRegistryCustomizer.class, asOrderedList(this.customizers), registry)
.withLogger(MeterRegistryConfigurer.class).invoke((customizer) -> customizer.customize(registry));
}
private void addFilters(MeterRegistry registry) {
this.filters.orderedStream().forEach(registry.config()::meterFilter);
}
private void addBinders(MeterRegistry registry) {
this.binders.orderedStream().forEach((binder) -> binder.bindTo(registry));
}
private List asOrderedList(ObjectProvider provider) {
return provider.orderedStream().collect(Collectors.toList());
}
}