69 lines
2.4 KiB
C#
69 lines
2.4 KiB
C#
using InnovEnergy.Lib.Time.Unix;
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using Microsoft.Extensions.Logging;
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namespace InnovEnergy.App.SaliMax;
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public class CustomLogger : ILogger
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{
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private readonly String _LogFilePath;
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private readonly Int64 _MaxFileSizeBytes;
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private readonly Int32 _MaxLogFileCount;
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private Int64 _CurrentFileSizeBytes;
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public CustomLogger(String logFilePath, Int64 maxFileSizeBytes, Int32 maxLogFileCount)
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{
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_LogFilePath = logFilePath;
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_MaxFileSizeBytes = maxFileSizeBytes;
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_MaxLogFileCount = maxLogFileCount;
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_CurrentFileSizeBytes = File.Exists(logFilePath) ? new FileInfo(logFilePath).Length : 0;
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}
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public IDisposable? BeginScope<TState>(TState state) where TState : notnull
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{
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throw new NotImplementedException();
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}
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public Boolean IsEnabled(LogLevel logLevel)
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{
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return true; // Enable logging for all levels
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}
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public void Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception? exception, Func<TState, Exception, String> formatter)
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{
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var logMessage = formatter(state, exception!);
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// Check the file size and rotate the log file if necessary
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if (_CurrentFileSizeBytes + logMessage.Length >= _MaxFileSizeBytes)
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{
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RotateLogFile();
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_CurrentFileSizeBytes = 0;
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}
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// Write the log message to the file
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File.AppendAllText(_LogFilePath, logMessage + Environment.NewLine);
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_CurrentFileSizeBytes += logMessage.Length;
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Console.WriteLine( logMessage + Environment.NewLine);
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}
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private void RotateLogFile()
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{
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// Check the log file count and delete the oldest file if necessary
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var logFileDir = Path.GetDirectoryName(_LogFilePath)!;
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var logFileExt = Path.GetExtension(_LogFilePath);
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var logFileBaseName = Path.GetFileNameWithoutExtension(_LogFilePath);
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var logFiles = Directory
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.GetFiles(logFileDir, $"{logFileBaseName}_*{logFileExt}")
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.OrderBy(file => file)
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.ToList();
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if (logFiles.Count >= _MaxLogFileCount)
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File.Delete(logFiles.First());
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// Rename the current log file with a timestamp
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var logFileBackupPath = Path.Combine(logFileDir, $"{logFileBaseName}_{UnixTime.Now}{logFileExt}");
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File.Move(_LogFilePath, logFileBackupPath);
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}
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}
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