jellyfin/MediaBrowser.Controller/Providers/DirectoryService.cs
Mikal S 9b7da736ed
Replace != with is not
Co-authored-by: Bond-009 <bond.009@outlook.com>
2024-06-15 18:00:53 +02:00

116 lines
3.4 KiB
C#

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