private StreamWriter GetLogWriter(IFileStorage storage)
		{
			string fileToUse;
			if (!storage.FileExists(FILE1_NAME) || storage.GetFileSize(FILE1_NAME) < MAX_LOG_FILE_SIZE)
			{
				fileToUse = FILE1_NAME;
			}
			else if (!storage.FileExists(FILE2_NAME) || storage.GetFileSize(FILE2_NAME) < MAX_LOG_FILE_SIZE)
			{
				fileToUse = FILE2_NAME;
			}
			else
			{
				storage.DeleteFileIfExists(FILE1_NAME);
				storage.RenameFile(FILE2_NAME, FILE1_NAME);
				fileToUse = FILE2_NAME;
			}

			return storage.OpenWriter(fileToUse, true);
		}