jellyfin/MediaBrowser.Controller/Providers/DirectoryService.cs
2014-02-08 17:38:02 -05:00

63 lines
1.9 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using MediaBrowser.Model.Logging;
namespace MediaBrowser.Controller.Providers
{
public class DirectoryService
{
private readonly ILogger _logger;
private readonly Dictionary<string, List<FileSystemInfo>> _cache = new Dictionary<string, List<FileSystemInfo>>(StringComparer.OrdinalIgnoreCase);
public DirectoryService(ILogger logger)
{
_logger = logger;
}
public List<FileSystemInfo> GetFileSystemEntries(string path)
{
List<FileSystemInfo> entries;
if (!_cache.TryGetValue(path, out entries))
{
//_logger.Debug("Getting files for " + path);
entries = new DirectoryInfo(path).EnumerateFileSystemInfos("*", SearchOption.TopDirectoryOnly).ToList();
_cache.Add(path, entries);
}
return entries;
}
public IEnumerable<FileInfo> GetFiles(string path)
{
return GetFileSystemEntries(path).OfType<FileInfo>();
}
public IEnumerable<DirectoryInfo> GetDirectories(string path)
{
return GetFileSystemEntries(path).OfType<DirectoryInfo>();
}
public FileInfo GetFile(string path)
{
var directory = Path.GetDirectoryName(path);
var filename = Path.GetFileName(path);
return GetFiles(directory).FirstOrDefault(i => string.Equals(i.Name, filename, StringComparison.OrdinalIgnoreCase));
}
public DirectoryInfo GetDirectory(string path)
{
var directory = Path.GetDirectoryName(path);
var name = Path.GetFileName(path);
return GetDirectories(directory).FirstOrDefault(i => string.Equals(i.Name, name, StringComparison.OrdinalIgnoreCase));
}
}
}