/// <summary>
/// Создает объект, наблюдающий за папкой по пути {path}, используя фильтр {filter}, и сортирующий топ N значений.
/// Для запуска необходимо вызвать метод Start
/// </summary>
/// <param name="path">Путь к папке с файлами</param>
/// <param name="filter">Фильтр желаемых файлов</param>
/// <param name="topCount">Количество позиций для сортировки</param>
public DirectoryWatcher(string path, string filter, int topCount)
{
Path = path;
Filter = filter;
_topN = new LimitedSizeSortedList <KeyValuePair <char, int> >(FrequencyComparer.Instance, topCount);
_watcher = new FileSystemWatcher
{
Path = path,
Filter = filter,
NotifyFilter = NotifyFilters.LastWrite | NotifyFilters.LastAccess | NotifyFilters.FileName
};
_watcher.Changed += (sender, args) => OnChanged(args.FullPath);
_watcher.Deleted += (sender, args) => OnDeleted(args.FullPath);
_watcher.Renamed += (sender, args) => OnRenamed(args);
}
public void TestMultiple()
{
KeyValuePair <char, int>[] items =
{
new KeyValuePair <char, int>('C', 1032508),
new KeyValuePair <char, int>('E', 1609137),
new KeyValuePair <char, int>('D', 1236174),
new KeyValuePair <char, int>('_', 568439),
new KeyValuePair <char, int>('\\', 287371),
new KeyValuePair <char, int>('[', 1006805),
new KeyValuePair <char, int>('A', 680143),
new KeyValuePair <char, int>('L', 155975),
new KeyValuePair <char, int>('I', 974892),
new KeyValuePair <char, int>('F', 1197310),
new KeyValuePair <char, int>('M', 1201940),
new KeyValuePair <char, int>('B', 1820738),
new KeyValuePair <char, int>('N', 640575),
new KeyValuePair <char, int>('S', 1221010),
new KeyValuePair <char, int>('R', 926485),
new KeyValuePair <char, int>('U', 1742070),
new KeyValuePair <char, int>('P', 602809),
new KeyValuePair <char, int>('X', 886691),
new KeyValuePair <char, int>('Y', 3020863),
new KeyValuePair <char, int>('W', 1091417),
new KeyValuePair <char, int>('Z', 834877),
new KeyValuePair <char, int>('V', 82777),
new KeyValuePair <char, int>('H', 920902),
new KeyValuePair <char, int>('O', 288008),
new KeyValuePair <char, int>('G', 616626)
};
var result = new LimitedSizeSortedList <KeyValuePair <char, int> >(FrequencyComparer.Instance, 5);
foreach (var pair in items)
{
result.Add(pair);
}
var expected = items.OrderByDescending(x => x.Value).Take(5).ToArray();
bool sequenceEqual = result.SequenceEqual(expected);
Assert.IsTrue(sequenceEqual);
}
