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.logging;
018
019import org.springframework.boot.actuate.autoconfigure.endpoint.condition.ConditionalOnEnabledEndpoint;
020import org.springframework.boot.actuate.logging.LoggersEndpoint;
021import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
022import org.springframework.boot.autoconfigure.condition.ConditionMessage;
023import org.springframework.boot.autoconfigure.condition.ConditionOutcome;
024import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
025import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
026import org.springframework.boot.autoconfigure.condition.SpringBootCondition;
027import org.springframework.boot.logging.LoggingSystem;
028import org.springframework.context.annotation.Bean;
029import org.springframework.context.annotation.ConditionContext;
030import org.springframework.context.annotation.Conditional;
031import org.springframework.context.annotation.Configuration;
032import org.springframework.core.type.AnnotatedTypeMetadata;
033
034/**
035 * {@link EnableAutoConfiguration Auto-configuration} for the {@link LoggersEndpoint}.
036 *
037 * @author Phillip Webb
038 * @since 2.0.0
039 */
040@Configuration
041public class LoggersEndpointAutoConfiguration {
042
043        @Bean
044        @ConditionalOnBean(LoggingSystem.class)
045        @Conditional(OnEnabledLoggingSystemCondition.class)
046        @ConditionalOnMissingBean
047        @ConditionalOnEnabledEndpoint
048        public LoggersEndpoint loggersEndpoint(LoggingSystem loggingSystem) {
049                return new LoggersEndpoint(loggingSystem);
050        }
051
052        static class OnEnabledLoggingSystemCondition extends SpringBootCondition {
053
054                @Override
055                public ConditionOutcome getMatchOutcome(ConditionContext context,
056                                AnnotatedTypeMetadata metadata) {
057                        ConditionMessage.Builder message = ConditionMessage
058                                        .forCondition("Logging System");
059                        String loggingSystem = System.getProperty(LoggingSystem.SYSTEM_PROPERTY);
060                        if (LoggingSystem.NONE.equals(loggingSystem)) {
061                                return ConditionOutcome.noMatch(message.because("system property "
062                                                + LoggingSystem.SYSTEM_PROPERTY + " is set to none"));
063                        }
064                        return ConditionOutcome.match(message.because("enabled"));
065                }
066
067        }
068
069}