internal TransferLog()

in AdlsDotNetSDK/FileTransfer/TransferLog.cs [28:78]
49 lines of code
9 McCabe index (conditional complexity)

        internal TransferLog(bool resume, string transferLogFile, string validateMetaDataInfo, bool disableLogging)
        {
            if (string.IsNullOrEmpty(transferLogFile))
            {
                throw new ArgumentNullException(nameof(transferLogFile));
            }
            _transferLogFile = transferLogFile;
            if(disableLogging && resume)
            {
                throw new ArgumentException("resume and disablelogging both cannot be true");
            }
            _disableLogging = disableLogging;
            if (!_disableLogging)
            {
                Utils.CreateParentDirectory(transferLogFile);
                try
                {
                    _stream = new FileStream(transferLogFile, resume ? FileMode.Open : FileMode.Create,
                        FileAccess.ReadWrite);
                }
                catch (FileNotFoundException)
                {
                    throw new ArgumentException("You have selected to resume but the resume file does not exist. There can be number of reasons for this: No transfer has been run before for the given source and destination or the last transfer was successful or temp folder was cleaned up. Please run without resume.");
                }
                if (resume)
                {
                    LoadedMetaData = new Dictionary<string, MetaData>();
                    LoadFrom(validateMetaDataInfo);
                }
                _recordQueue = new QueueWrapper<string>(-1); // Purposeful-We will close it manually
                _writeStream = new StreamWriter(_stream)
                {
                    AutoFlush = true
                };
                if (!resume)
                {
                    _writeStream.WriteLine($"{FirstLineConst},{validateMetaDataInfo}");
                }
                else
                {
                    // This is a precaution that if the transfer broke before with an incomplete line
                    // We will ignore an empty line anyways
                    _writeStream.WriteLine();
                }
                _writeThread = new Thread(RunMetaDataWrite)
                {
                    Name = "MetaDataWriteThread"
                };
                _writeThread.Start();
            }
        }