org.dromara.hutool.log.engine.log4j2.Log4j2Log Maven / Gradle / Ivy

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Hutool是一个优雅而小巧的Java工具类库
There is a newer version: 6.0.0.M3
/*
 * Copyright (c) 2013-2024 Hutool Team and hutool.cn
 *
 * 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
 *
 * http://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.dromara.hutool.log.engine.log4j2;

import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.spi.AbstractLogger;

import org.dromara.hutool.core.text.StrUtil;
import org.dromara.hutool.log.AbstractLog;

/**
 * Apache Log4J 2 log.

 *
 * @author Looly
 *
 */
public class Log4j2Log extends AbstractLog {
	private static final long serialVersionUID = -6843151523380063975L;

	private final transient Logger logger;

	// ------------------------------------------------------------------------- Constructor
	public Log4j2Log(final Logger logger) {
		this.logger = logger;
	}

	public Log4j2Log(final Class clazz) {
		this(LogManager.getLogger(clazz));
	}

	public Log4j2Log(final String name) {
		this(LogManager.getLogger(name));
	}

	@Override
	public String getName() {
		return logger.getName();
	}

	// ------------------------------------------------------------------------- Trace
	@Override
	public boolean isTraceEnabled() {
		return logger.isTraceEnabled();
	}

	@Override
	public void trace(final String fqcn, final Throwable t, final String format, final Object... arguments) {
		logIfEnabled(fqcn, Level.TRACE, t, format, arguments);
	}

	// ------------------------------------------------------------------------- Debug
	@Override
	public boolean isDebugEnabled() {
		return logger.isDebugEnabled();
	}

	@Override
	public void debug(final String fqcn, final Throwable t, final String format, final Object... arguments) {
		logIfEnabled(fqcn, Level.DEBUG, t, format, arguments);
	}

	// ------------------------------------------------------------------------- Info
	@Override
	public boolean isInfoEnabled() {
		return logger.isInfoEnabled();
	}

	@Override
	public void info(final String fqcn, final Throwable t, final String format, final Object... arguments) {
		logIfEnabled(fqcn, Level.INFO, t, format, arguments);
	}

	// ------------------------------------------------------------------------- Warn
	@Override
	public boolean isWarnEnabled() {
		return logger.isWarnEnabled();
	}

	@Override
	public void warn(final String fqcn, final Throwable t, final String format, final Object... arguments) {
		logIfEnabled(fqcn, Level.WARN, t, format, arguments);
	}

	// ------------------------------------------------------------------------- Error
	@Override
	public boolean isErrorEnabled() {
		return logger.isErrorEnabled();
	}

	@Override
	public void error(final String fqcn, final Throwable t, final String format, final Object... arguments) {
		logIfEnabled(fqcn, Level.ERROR, t, format, arguments);
	}

	// ------------------------------------------------------------------------- Log
	@Override
	public void log(final String fqcn, final org.dromara.hutool.log.level.Level level, final Throwable t, final String format, final Object... arguments) {
		final Level log4j2Level;
		switch (level) {
			case TRACE:
				log4j2Level = Level.TRACE;
				break;
			case DEBUG:
				log4j2Level = Level.DEBUG;
				break;
			case INFO:
				log4j2Level = Level.INFO;
				break;
			case WARN:
				log4j2Level = Level.WARN;
				break;
			case ERROR:
				log4j2Level = Level.ERROR;
				break;
			default:
				throw new Error(StrUtil.format("Can not identify level: {}", level));
		}
		logIfEnabled(fqcn, log4j2Level, t, format, arguments);
	}

	// ------------------------------------------------------------------------- Private method
	/**
	 * 打印日志

	 * 此方法用于兼容底层日志实现，通过传入当前包装类名，以解决打印日志中行号错误问题
	 *
	 * @param fqcn 完全限定类名(Fully Qualified Class Name)，用于纠正定位错误行号
	 * @param level 日志级别，使用org.apache.logging.log4j.Level中的常量
	 * @param t 异常
	 * @param msgTemplate 消息模板
	 * @param arguments 参数
	 */
	private void logIfEnabled(final String fqcn, final Level level, final Throwable t, final String msgTemplate, final Object... arguments) {
		if(this.logger.isEnabled(level)) {
			if(this.logger instanceof AbstractLogger){
				((AbstractLogger)this.logger).logIfEnabled(fqcn, level, null, StrUtil.format(msgTemplate, arguments), t);
			} else {
				// FQCN无效
				this.logger.log(level, StrUtil.format(msgTemplate, arguments), t);
			}
		}
	}
}