spring SpringBootConfigurationFactory 源码
springboot SpringBootConfigurationFactory 代码
文件路径：/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/logging/log4j2/SpringBootConfigurationFactory.java
/*
* Copyright 2012-2021 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.logging.log4j2;
import org.apache.logging.log4j.core.LoggerContext;
import org.apache.logging.log4j.core.config.Configuration;
import org.apache.logging.log4j.core.config.ConfigurationFactory;
import org.apache.logging.log4j.core.config.ConfigurationSource;
import org.apache.logging.log4j.core.config.DefaultConfiguration;
import org.apache.logging.log4j.core.config.Order;
import org.apache.logging.log4j.core.config.plugins.Plugin;
/**
* Spring Boot {@link ConfigurationFactory} that customizes Log4J2's default configuration
* to:
*
* <ol>
* <li>Prevent logger warnings from being printed when the application first starts.
* </ol>
*
* This factory is ordered last and is triggered by a {@code log4j2.springboot} classpath
* resource (which is bundled in this jar). If the {@link Log4J2LoggingSystem} is active,
* a {@link DefaultConfiguration} is returned with the expectation that the system will
* later re-initialize Log4J2 with the correct configuration file.
*
* @author Phillip Webb
* @since 1.5.0
*/
@Plugin(name = "SpringBootConfigurationFactory", category = ConfigurationFactory.CATEGORY)
@Order(0)
public class SpringBootConfigurationFactory extends ConfigurationFactory {
private static final String[] TYPES = { ".springboot" };
@Override
protected String[] getSupportedTypes() {
return TYPES;
}
@Override
public Configuration getConfiguration(LoggerContext loggerContext, ConfigurationSource source) {
if (source == null || source == ConfigurationSource.NULL_SOURCE) {
return null;
}
return new DefaultConfiguration();
}
}
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- 本文标签： Spring Boot Java Spring
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