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115 lines
3.3 KiB
C#
115 lines
3.3 KiB
C#
using MediaBrowser.Model.Logging;
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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.IO;
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using System.Linq;
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using MediaBrowser.Controller.IO;
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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 ILogger _logger;
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private readonly IFileSystem _fileSystem;
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private readonly ConcurrentDictionary<string, FileSystemMetadata[]> _cache =
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new ConcurrentDictionary<string, FileSystemMetadata[]>(StringComparer.OrdinalIgnoreCase);
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private readonly ConcurrentDictionary<string, FileSystemMetadata> _fileCache =
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new ConcurrentDictionary<string, FileSystemMetadata>(StringComparer.OrdinalIgnoreCase);
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public DirectoryService(ILogger logger, IFileSystem fileSystem)
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{
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_logger = logger;
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_fileSystem = fileSystem;
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}
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public DirectoryService(IFileSystem fileSystem)
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: this(new NullLogger(), fileSystem)
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{
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}
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public FileSystemMetadata[] GetFileSystemEntries(string path)
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{
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return GetFileSystemEntries(path, false);
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}
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private FileSystemMetadata[] GetFileSystemEntries(string path, bool clearCache)
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{
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if (string.IsNullOrWhiteSpace(path))
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{
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throw new ArgumentNullException("path");
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}
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FileSystemMetadata[] entries;
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if (clearCache)
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{
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FileSystemMetadata[] removed;
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_cache.TryRemove(path, out removed);
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}
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if (!_cache.TryGetValue(path, out entries))
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{
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//_logger.Debug("Getting files for " + path);
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try
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{
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// using EnumerateFileSystemInfos doesn't handle reparse points (symlinks)
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entries = _fileSystem.GetFileSystemEntries(path).ToArray();
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}
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catch (IOException)
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{
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entries = new FileSystemMetadata[] { };
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}
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_cache.TryAdd(path, entries);
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}
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return entries;
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}
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public List<FileSystemMetadata> GetFiles(string path)
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{
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return GetFiles(path, false);
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}
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public List<FileSystemMetadata> GetFiles(string path, bool clearCache)
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{
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var list = new List<FileSystemMetadata>();
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var items = GetFileSystemEntries(path, clearCache);
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foreach (var item in items)
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{
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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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FileSystemMetadata file;
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if (!_fileCache.TryGetValue(path, out file))
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{
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file = _fileSystem.GetFileInfo(path);
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if (file != null && file.Exists)
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{
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_fileCache.TryAdd(path, file);
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}
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else
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{
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return null;
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}
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}
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return file;
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//return _fileSystem.GetFileInfo(path);
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}
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}
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}
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