116 lines
3.4 KiB
C#
116 lines
3.4 KiB
C#
#pragma warning disable CS1591
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Linq;
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using MediaBrowser.Model.IO;
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namespace MediaBrowser.Controller.Providers
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{
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public class DirectoryService : IDirectoryService
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{
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private readonly IFileSystem _fileSystem;
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private readonly ConcurrentDictionary<string, FileSystemMetadata[]> _cache = new(StringComparer.Ordinal);
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private readonly ConcurrentDictionary<string, FileSystemMetadata> _fileCache = new(StringComparer.Ordinal);
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private readonly ConcurrentDictionary<string, List<string>> _filePathCache = new(StringComparer.Ordinal);
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public DirectoryService(IFileSystem fileSystem)
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{
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_fileSystem = fileSystem;
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}
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public FileSystemMetadata[] GetFileSystemEntries(string path)
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{
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return _cache.GetOrAdd(path, static (p, fileSystem) => fileSystem.GetFileSystemEntries(p).ToArray(), _fileSystem);
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}
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public List<FileSystemMetadata> GetDirectories(string path)
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{
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var list = new List<FileSystemMetadata>();
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var items = GetFileSystemEntries(path);
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for (var i = 0; i < items.Length; i++)
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{
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var item = items[i];
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if (item.IsDirectory)
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{
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list.Add(item);
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}
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}
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return list;
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}
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public List<FileSystemMetadata> GetFiles(string path)
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{
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var list = new List<FileSystemMetadata>();
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var items = GetFileSystemEntries(path);
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for (var i = 0; i < items.Length; i++)
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{
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var item = items[i];
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if (!item.IsDirectory)
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{
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list.Add(item);
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}
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}
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return list;
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}
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public FileSystemMetadata? GetFile(string path)
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{
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var entry = GetFileSystemEntry(path);
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return entry is not null && !entry.IsDirectory ? entry : null;
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}
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public FileSystemMetadata? GetDirectory(string path)
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{
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var entry = GetFileSystemEntry(path);
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return entry is not null && entry.IsDirectory ? entry : null;
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}
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public FileSystemMetadata? GetFileSystemEntry(string path)
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{
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if (!_fileCache.TryGetValue(path, out var result))
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{
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var file = _fileSystem.GetFileSystemInfo(path);
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if (file?.Exists ?? false)
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{
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result = file;
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_fileCache.TryAdd(path, result);
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}
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}
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return result;
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}
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public IReadOnlyList<string> GetFilePaths(string path)
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=> GetFilePaths(path, false);
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public IReadOnlyList<string> GetFilePaths(string path, bool clearCache, bool sort = false)
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{
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if (clearCache)
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{
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_filePathCache.TryRemove(path, out _);
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}
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var filePaths = _filePathCache.GetOrAdd(path, static (p, fileSystem) => fileSystem.GetFilePaths(p).ToList(), _fileSystem);
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if (sort)
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{
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filePaths.Sort();
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}
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return filePaths;
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}
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public bool IsAccessible(string path)
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{
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return _fileSystem.GetFileSystemEntryPaths(path).Any();
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}
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}
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}
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