public RollingFileAlternativeSink(ITextFormatter formatter, TemplatedPathRoller roller, long fileSizeLimitBytes,
RollingLogFile rollingLogFile, Encoding encoding = null)
{
_formatter = formatter;
_roller = roller;
_fileSizeLimitBytes = fileSizeLimitBytes;
EnableLevelLogging = roller.PathIncludesLevel;
_output = OpenFileForWriting(roller.LogFileDirectory, rollingLogFile, encoding ?? Encoding.UTF8);
}
private StreamWriter OpenFileForWriting(string folderPath, RollingLogFile rollingLogFile, Encoding encoding)
{
EnsureDirectoryCreated(folderPath);
try
{
LogFile = rollingLogFile;
var fullPath = Path.Combine(folderPath, rollingLogFile.Filename);
var stream = File.Open(fullPath, FileMode.Append, FileAccess.Write, FileShare.Read);
return(new StreamWriter(stream, encoding ?? Encoding.UTF8));
}
catch (IOException ex)
{
SelfLog.WriteLine("Error {0} while opening obsolete file {1}", ex, rollingLogFile.Filename);
return(OpenFileForWriting(folderPath, rollingLogFile.Next(_roller), encoding));
}
catch (Exception ex)
{
SelfLog.WriteLine("Error {0} while opening obsolete file {1}", ex, rollingLogFile.Filename);
throw;
}
}