001/* 002 * Copyright 2012-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.boot.actuate.autoconfigure.metrics; 018 019import ch.qos.logback.classic.LoggerContext; 020import io.micrometer.core.instrument.MeterRegistry; 021import io.micrometer.core.instrument.binder.logging.LogbackMetrics; 022import org.slf4j.ILoggerFactory; 023import org.slf4j.LoggerFactory; 024 025import org.springframework.boot.actuate.autoconfigure.metrics.LogbackMetricsAutoConfiguration.LogbackLoggingCondition; 026import org.springframework.boot.autoconfigure.AutoConfigureAfter; 027import org.springframework.boot.autoconfigure.EnableAutoConfiguration; 028import org.springframework.boot.autoconfigure.condition.ConditionMessage; 029import org.springframework.boot.autoconfigure.condition.ConditionOutcome; 030import org.springframework.boot.autoconfigure.condition.ConditionalOnBean; 031import org.springframework.boot.autoconfigure.condition.ConditionalOnClass; 032import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean; 033import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty; 034import org.springframework.boot.autoconfigure.condition.SpringBootCondition; 035import org.springframework.context.annotation.Bean; 036import org.springframework.context.annotation.ConditionContext; 037import org.springframework.context.annotation.Conditional; 038import org.springframework.context.annotation.Configuration; 039import org.springframework.core.type.AnnotatedTypeMetadata; 040 041/** 042 * {@link EnableAutoConfiguration Auto-configuration} for Logback metrics. 043 * 044 * @author Stephane Nicoll 045 * @since 2.1.0 046 */ 047@Configuration 048@AutoConfigureAfter(MetricsAutoConfiguration.class) 049@ConditionalOnClass({ MeterRegistry.class, LoggerContext.class, LoggerFactory.class }) 050@ConditionalOnBean(MeterRegistry.class) 051@Conditional(LogbackLoggingCondition.class) 052@ConditionalOnProperty(value = "management.metrics.binders.logback.enabled", matchIfMissing = true) 053public class LogbackMetricsAutoConfiguration { 054 055 @Bean 056 @ConditionalOnMissingBean 057 public LogbackMetrics logbackMetrics() { 058 return new LogbackMetrics(); 059 } 060 061 static class LogbackLoggingCondition extends SpringBootCondition { 062 063 @Override 064 public ConditionOutcome getMatchOutcome(ConditionContext context, 065 AnnotatedTypeMetadata metadata) { 066 ILoggerFactory loggerFactory = LoggerFactory.getILoggerFactory(); 067 ConditionMessage.Builder message = ConditionMessage 068 .forCondition("LogbackLoggingCondition"); 069 if (loggerFactory instanceof LoggerContext) { 070 return ConditionOutcome.match( 071 message.because("ILoggerFactory is a Logback LoggerContext")); 072 } 073 return ConditionOutcome 074 .noMatch(message.because("ILoggerFactory is an instance of " 075 + loggerFactory.getClass().getCanonicalName())); 076 } 077 078 } 079 080}