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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 ch.qos.logback.classic.LoggerContext;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.binder.logging.LogbackMetrics;
import org.slf4j.ILoggerFactory;
import org.slf4j.LoggerFactory;
import org.springframework.boot.actuate.autoconfigure.metrics.LogbackMetricsAutoConfiguration.LogbackLoggingCondition;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionMessage;
import org.springframework.boot.autoconfigure.condition.ConditionOutcome;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.SpringBootCondition;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ConditionContext;
import org.springframework.context.annotation.Conditional;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.type.AnnotatedTypeMetadata;
/**
* {@link EnableAutoConfiguration Auto-configuration} for Logback metrics.
*
* @author Stephane Nicoll
* @since 2.1.0
*/
@Configuration(proxyBeanMethods = false)
@AutoConfigureAfter(MetricsAutoConfiguration.class)
@ConditionalOnClass({ MeterRegistry.class, LoggerContext.class, LoggerFactory.class })
@ConditionalOnBean(MeterRegistry.class)
@Conditional(LogbackLoggingCondition.class)
public class LogbackMetricsAutoConfiguration {
@Bean
@ConditionalOnMissingBean
public LogbackMetrics logbackMetrics() {
return new LogbackMetrics();
}
static class LogbackLoggingCondition extends SpringBootCondition {
@Override
public ConditionOutcome getMatchOutcome(ConditionContext context, AnnotatedTypeMetadata metadata) {
ILoggerFactory loggerFactory = LoggerFactory.getILoggerFactory();
ConditionMessage.Builder message = ConditionMessage.forCondition("LogbackLoggingCondition");
if (loggerFactory instanceof LoggerContext) {
return ConditionOutcome.match(message.because("ILoggerFactory is a Logback LoggerContext"));
}
return ConditionOutcome.noMatch(
message.because("ILoggerFactory is an instance of " + loggerFactory.getClass().getCanonicalName()));
}
}
}