package com.shhxzq.fin.lifeapp.model.base;

import java.util.UUID;

import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;

/**
 * 基础日志操作类-同一个线程的uuid是一样的
 * 
 * @author Gxx
 */
public class BaseUuidLogger extends Logger {

	/**
	 * 通过匿名内部类覆盖ThreadLocal的initialValue()方法，指定初始值
	 * 使得同一个线程的uuid是一样的
	 */
	private static ThreadLocal<String> uuid = new ThreadLocal<String>() {
		/**
		 * 初始值
		 */
		public String initialValue() {
			return "[uuid:" + UUID.randomUUID().toString() + "] : ";
		}
	};

	/**
	 * 空参数构造函数
	 */
	public BaseUuidLogger() {
		super(StringUtils.EMPTY);
	}

	/**
	 * 构造方法
	 * 
	 * @param name
	 */
	protected BaseUuidLogger(String name) {
		super(name);
	}

	@Override
	public void trace(Object message) {
		message = getStackString() + uuid.get() + message;
		super.trace(message);
	}

	@Override
	public void debug(Object message) {
		message = getStackString() + uuid.get() + message;
		super.debug(message);
	}

	@Override
	public void error(Object message) {
		message = getStackString() + uuid.get() + message;
		super.error(message);
	}

	@Override
	public void error(Object message, Throwable t) {
		message = getStackString() + uuid.get() + message;
		super.error(message, t);
	}

	@Override
	public void fatal(Object message) {
		message = getStackString() + uuid.get() + message;
		super.fatal(message);
	}

	@Override
	public void fatal(Object message, Throwable t) {
		message = getStackString() + uuid.get() + message;
		super.fatal(message, t);
	}

	@Override
	public void info(Object message) {
		message = getStackString() + uuid.get() + message;
		super.info(message);
	}

	@Override
	public void warn(Object message) {
		message = getStackString() + uuid.get() + message;
		super.warn(message);
	}
	
	/**
	 * 获取堆栈信息
	 * @param stackElements
	 * @return
	 */
	private String getStackString() {
		StackTraceElement[] stackElements = new Throwable().getStackTrace();
		if (stackElements != null && stackElements.length > 2) {
			return "[" + stackElements[2].getClassName()+ ".java:" 
					+ stackElements[2].getMethodName() + "():" 
					+ stackElements[2].getLineNumber() + "]";
            
        }
		return StringUtils.EMPTY;
	}
}