public ExternalMergeSorter(ExternalMergeSorterOptions options)
{
_totalFilesToMerge = 0;
_mergeFilesProcessed = 0;
_options = options ?? throw new ArgumentNullException(nameof(options));
_unsortedRows = Array.Empty <string>();
}
static async Task Main(string[] args)
{
Console.OutputEncoding = Encoding.UTF8;
Console.InputEncoding = Encoding.UTF8;
try
{
var unsortedFilePath = DisplayMenu();
var unsortedFileName = Path.GetFileNameWithoutExtension(unsortedFilePath);
var sortedFilePath = Path.Combine(
AppDomain.CurrentDomain.BaseDirectory,
$"{unsortedFileName}-sorted.txt");
var cancellationTokenSource = new CancellationTokenSource();
var unsortedFile = File.OpenRead(unsortedFilePath);
var targetFile = File.OpenWrite(sortedFilePath);
var options = new ExternalMergeSorterOptions
{
FileLocation = AppDomain.CurrentDomain.BaseDirectory,
Sort = new ExternalMergeSortSortOptions
{
Comparer = new CustomRowComparer()
},
Split = new ExternalMergeSortSplitOptions
{
FileSize = 128 * 1024 * 1024
}
};
var sorter = new ExternalMergeSorter(options);
var watch = Stopwatch.StartNew();
await sorter.Sort(unsortedFile, targetFile, cancellationTokenSource.Token);
watch.Stop();
Console.WriteLine($"Файл {unsortedFilePath} отсортирован за {watch.ElapsedMilliseconds/1000} cекунд");
Console.WriteLine($"Файл доступен по пути: {Environment.NewLine}{sortedFilePath}{Environment.NewLine}");
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
Console.WriteLine("Нажмите любую клавишу для завершения работы программы");
Console.ReadKey();
}
