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package me.zhyd.oauth.log;
import lombok.AllArgsConstructor;
import lombok.Getter;
import java.io.PrintStream;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
/**
* 针对JustAuth提供的轻量级的日志打印工具
*
* @author yadong.zhang (yadong.zhang0415(a)gmail.com)
* @see Log#debug(String)
* @see Log#debug(String, Throwable)
* @see Log#warn(String)
* @see Log#warn(String, Throwable)
* @see Log#error(String)
* @see Log#error(String, Throwable)
* @since 1.10.0
*/
public class Log {
public static void debug(String msg) {
debug(msg, null);
}
public static void warn(String msg) {
warn(msg, null);
}
public static void error(String msg) {
error(msg, null);
}
public static void debug(String msg, Throwable t) {
print(Level.DEBUG, msg, t, System.out);
}
public static void warn(String msg, Throwable t) {
print(Level.WARN, msg, t, System.out);
}
public static void error(String msg, Throwable t) {
print(Level.ERROR, msg, t, System.err);
}
/**
* 打印日志内容,格式:2019-08-02 20:44:07 main me.zhyd.oauth.log.Log(debug:39) [DEBUG] - xxxx
*
* @param level 日志级别
* @param msg 日志内容
* @param t 异常信息
* @param ps 实际执行打印的PrintStream
*/
private static void print(Level level, String msg, Throwable t, PrintStream ps) {
if (Config.enable) {
if (level.getLevelNum() >= Config.level.getLevelNum()) {
ps.println(String.format("%s %s %s [%s] - %s", getDate(), Thread.currentThread().getName(), getCaller(), level, msg));
writeThrowable(t, ps);
ps.flush();
}
}
}
/**
* 获取调用方的信息
*
* @return 返回调用方的信息,格式:class(method:lineNumber)
*/
private static String getCaller() {
int offset = 2;
StackTraceElement[] stackTraceArr = (new Throwable()).getStackTrace();
StackTraceElement stackTrace = null;
if (offset >= stackTraceArr.length) {
offset = offset - 1;
}
stackTrace = stackTraceArr[offset];
return stackTrace.getClassName() +
"(" +
stackTrace.getMethodName() +
':' +
stackTrace.getLineNumber() +
")";
}
/**
* 获取格式化后的日期
*
* @return string
*/
private static String getDate() {
return LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));
}
/**
* 打印异常信息
*
* @param t 异常
* @param targetStream 实际执行打印的PrintStream
*/
private static void writeThrowable(Throwable t, PrintStream targetStream) {
if (t != null) {
t.printStackTrace(targetStream);
}
}
/**
* 日志级别
*
* @author yadong.zhang (yadong.zhang0415(a)gmail.com)
* @since 1.10.0
*/
@Getter
@AllArgsConstructor
public enum Level {
/**
* DEBUG: 普通级别
*/
DEBUG(10),
/**
* WARN: 警告级别
*/
WARN(30),
/**
* ERROR: 异常级别
*/
ERROR(40);
private int levelNum;
}
/**
* 日志配置
*
* @author yadong.zhang (yadong.zhang0415(a)gmail.com)
* @since 1.10.0
*/
public static class Config {
/**
* 需要打印的日志级别
*/
public static Level level = Level.DEBUG;
/**
* 是否启用日志打印功能,默认启用
*/
public static boolean enable = true;
}
}
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