public static void DeleteOldLogFiles(LoggingData data, string dirFullName)
{
if (
data.ConfigurationSettings.DaysToRetain <= 0 || //don't bother to check if we're not configured to delete files.
_lastFileDeleteCheck > DateTime.Now.AddMinutes(-5) //only check every 5 minutes, avoid costly call on every log entry.
)
{
return;
}
Console.WriteLine($"Checking delete log files, dir: {dirFullName}");
var numberOfDays = data.ConfigurationSettings.DaysToRetain;
var cutoffDate = DateTime.Now.Date.AddDays(numberOfDays * -1);
var dirInfo = new DirectoryInfo(dirFullName);
var listOfFilesToDelete = dirInfo.GetFiles().Where(x => x.CreationTime.Date < cutoffDate)
.Select(x => x)
.ToList();
foreach (var file in listOfFilesToDelete)
{
Console.WriteLine($"Deleting old log file: {file.Name}");
file.Delete();
}
_lastFileDeleteCheck = DateTime.Now;
}
//public async Task FatalAsync(string message) => await FatalAsync(message, null);
//public async Task FatalAsync(string message, Exception exception) => await LogAsync(LogLevel.Fatal, message, exception);
//-----------------------
private void Log(LogLevel logLevel, string message, Exception exception)
{
if (logLevel < FileLogLevelAsEnum && logLevel < ConsoleLogLevelAsEnum)
{
return;
}
var data = new LoggingData
{
ConfigurationSettings = ConfigurationSettings,
LogLevel = logLevel,
CurrentDateTime = DateTime.Now,
Message = message
};
var renderer = new ContentRenderer {
LayoutData = data
};
//determine log file we're writing to
var logFileFullName = LogFileManagement.SetUpLogFile(data);
//format the string to write
var logContent = renderer.Render(ConfigurationSettings.LogEntryLayout) + Environment.NewLine;
if (exception != null)
{
logContent += $">>>Exception Message: {exception.Message}{Environment.NewLine}{exception.StackTrace}{Environment.NewLine}";
}
//if Console logging enabled, write to Console
if (ConfigurationSettings.LogToConsole && logLevel >= ConsoleLogLevelAsEnum)
{
Console.Write(logContent);
}
//write/append, non locking
if (logLevel >= FileLogLevelAsEnum)
{
LogFileManagement.WriteLog(logFileFullName, logContent);
}
}
public static string SetUpLogFile(LoggingData data)
{
CreateDirIfNotExists(data.ConfigurationSettings.LogDirectory);
var dirFullName = Path.GetFullPath(data.ConfigurationSettings.LogDirectory);
var dirInfo = new DirectoryInfo(dirFullName);
if (!dirInfo.Exists)
{
throw new ArgumentException($"Directory {data.ConfigurationSettings.LogDirectory} not exists and/or could not be created");
}
DeleteOldLogFiles(data, dirFullName);
var renderer = new ContentRenderer
{
LayoutData = data
};
var filename = renderer.Render(data.ConfigurationSettings.LogFileName);
return(Path.Combine(data.ConfigurationSettings.LogDirectory, filename));
}