spring DebugLogbackConfigurator 源码

2022-08-12
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springboot DebugLogbackConfigurator 代码

文件路径：/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/logging/logback/DebugLogbackConfigurator.java

/*
 * 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.logging.logback;

import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.Appender;
import ch.qos.logback.core.pattern.Converter;
import ch.qos.logback.core.spi.LifeCycle;
import ch.qos.logback.core.status.InfoStatus;
import ch.qos.logback.core.status.Status;

/**
 * Custom {@link LogbackConfigurator} used to add {@link Status Statuses} when Logback
 * debugging is enabled.
 *
 * @author Andy Wilkinson
 */
class DebugLogbackConfigurator extends LogbackConfigurator {

	DebugLogbackConfigurator(LoggerContext context) {
		super(context);
	}

	@Override
	@SuppressWarnings("rawtypes")
	public void conversionRule(String conversionWord, Class<? extends Converter> converterClass) {
		info("Adding conversion rule of type '" + converterClass.getName() + "' for word '" + conversionWord + "'");
		super.conversionRule(conversionWord, converterClass);
	}

	@Override
	public void appender(String name, Appender<?> appender) {
		info("Adding appender '" + appender + "' named '" + name + "'");
		super.appender(name, appender);
	}

	@Override
	public void logger(String name, Level level, boolean additive, Appender<ILoggingEvent> appender) {
		info("Configuring logger '" + name + "' with level '" + level + "'. Additive: " + additive);
		if (appender != null) {
			info("Adding appender '" + appender + "' to logger '" + name + "'");
		}
		super.logger(name, level, additive, appender);
	}

	@Override
	public void start(LifeCycle lifeCycle) {
		info("Starting '" + lifeCycle + "'");
		super.start(lifeCycle);
	}

	private void info(String message) {
		getContext().getStatusManager().add(new InfoStatus(message, this));
	}

}

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本文标签： Spring Boot Java Spring
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