Mitria_Minecraft_Project/CommonLibrary/Log.cs

using System;
using System.Diagnostics;
using System.IO;
using System.Text;

namespace CommonLibrary
{
    public static class Log
    {
        //로그파일 이름 규칙 어셈블리명-날짜.log
        public static LogLevel logLevel { get; set; }

        private static string logDateTime;

        static Log()
        {
            SetLogFile(DateTime.Now.ToString("yyyy-MM-dd")); // Log파일 이름 세팅을 위한 함수 호출
            logLevel = LogLevel.Info;
        }

        /// <summary>
        /// 로그 파일 리스너 세팅
        /// </summary>
        /// <param name="dateTimeString">로그파일 이름에 들어갈 DateTime String</param>
        private static void SetLogFile(string dateTimeString)
        {
            logDateTime = dateTimeString;

            if (!System.IO.Directory.Exists("logs"))
            {
                System.IO.Directory.CreateDirectory("logs");
            }
            var logFileName = $"logs\\{logDateTime}.log";
            Trace.Listeners.Clear();
            Trace.Listeners.Add(new TextWriterTraceListener(new FileStream(logFileName, FileMode.Append, FileAccess.Write, FileShare.Read)));
            Trace.Write("====================================================================================================// ");
            Trace.Write(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
            Trace.WriteLine(" //====================================================================================================");
            Trace.Flush();
        }

        //FATAL > ERROR > WARN > INFO > DEBUG > TRACE
        public static void FATAL(string message)
        {
            if (LogLevel.FATAL >= logLevel)
            {
                // Call Location
                var stackTrace = new StackTrace();
                var methodBase = stackTrace.GetFrame(1).GetMethod();
                string location = methodBase.DeclaringType != null
                    ? methodBase.DeclaringType.Name + "/"
                    : "null/";
                location += methodBase.Name;
                // Call Location End
                WriteLog(LogLevel.FATAL, location + "\t" + message);
            }
        }

        public static void ERROR(string message)
        {
            if (LogLevel.Error >= logLevel)
            {
                // Call Location
                var stackTrace = new StackTrace();
                var methodBase = stackTrace.GetFrame(1).GetMethod();
                string location = methodBase.DeclaringType != null
                    ? methodBase.DeclaringType.Name + "/"
                    : "null/";
                location += methodBase.Name;
                // Call Location End
                WriteLog(LogLevel.Error, location + "\t" + message);
            }
        }

        public static void WARN(string message)
        {
            if (LogLevel.Warn >= logLevel)
            {
                // Call Location
                var stackTrace = new StackTrace();
                var methodBase = stackTrace.GetFrame(1).GetMethod();
                string location = methodBase.DeclaringType != null
                    ? methodBase.DeclaringType.Name + "/"
                    : "null/";
                location += methodBase.Name;
                // Call Location End
                WriteLog(LogLevel.Warn, location + "\t" + message);
            }
        }

        public static void INFO(string message)
        {
            if (LogLevel.Info >= logLevel)
            {
                // Call Location
                var stackTrace = new StackTrace();
                var methodBase = stackTrace.GetFrame(1).GetMethod();
                string location = methodBase.DeclaringType != null
                    ? methodBase.DeclaringType.Name + "/"
                    : "null/";
                location += methodBase.Name;
                // Call Location End
                WriteLog(LogLevel.Info, location + "\t" + message);
            }
        }

        public static void DEBUG(string message)
        {
            if (LogLevel.Debug >= logLevel)
            {
                // Call Location
                var stackTrace = new StackTrace();
                var methodBase = stackTrace.GetFrame(1).GetMethod();
                string location = methodBase.DeclaringType != null
                    ? methodBase.DeclaringType.Name + "/"
                    : "null/";
                location += methodBase.Name;
                // Call Location End
                WriteLog(LogLevel.Debug, location + "\t" + message);
            }
        }

        public static void TRACE(string message)
        {
            if (LogLevel.Trace >= logLevel)
            {
                var stackTrace = new StackTrace();
                var methodBase = stackTrace.GetFrame(1).GetMethod();
                string location = methodBase.DeclaringType != null
    ? methodBase.DeclaringType.Name + "/"
    : "null/";
                location += methodBase.Name;
                // Call Location End
                WriteLog(LogLevel.Debug, location + "\t" + message);
                WriteLog(LogLevel.Trace, message);
            }
        }

        /// <summary>
        ///
        /// </summary>
        /// <param name="logLevel">enum LogLevel</param>
        /// <param name="message">로그 메세지</param>
        private static void WriteLog(LogLevel logLevel, string message)
        {
            string nowDateTime = DateTime.Now.ToString("yyyy-MM-dd");
            if (nowDateTime != logDateTime)
            {
                SetLogFile(nowDateTime);
            }

            // Log String
            var stringBuilder = new StringBuilder();
            stringBuilder.Append("[");
            stringBuilder.Append(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
            stringBuilder.Append("]");
            stringBuilder.Append("\t");
            stringBuilder.Append(logLevel);
            stringBuilder.Append("\t");
            stringBuilder.Append(message.Trim());
            Trace.WriteLine(stringBuilder.ToString());
            Trace.Flush();
        }
    }

    public enum LogLevel
    {
        Trace,
        Debug,
        Info,
        Warn,
        Error,
        FATAL
    }
}