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using MediaBrowser.Controller.IO;
using MediaBrowser.Controller.Library;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.Serialization;
using MediaBrowser.Controller.Providers;
namespace MediaBrowser.Controller.Entities
{
/// <summary>
/// Specialized folder that can have items added to it's children by external entities.
/// Used for our RootFolder so plug-ins can add items.
/// </summary>
public class AggregateFolder : Folder
{
public AggregateFolder()
{
PhysicalLocationsList = new List<string>();
}
/// <summary>
/// We don't support manual shortcuts
/// </summary>
protected override bool SupportsShortcutChildren
{
get
{
return false;
}
}
public override bool CanDelete()
{
return false;
}
/// <summary>
/// The _virtual children
/// </summary>
private readonly ConcurrentBag<BaseItem> _virtualChildren = new ConcurrentBag<BaseItem>();
/// <summary>
/// Gets the virtual children.
/// </summary>
/// <value>The virtual children.</value>
public ConcurrentBag<BaseItem> VirtualChildren
{
get { return _virtualChildren; }
}
[IgnoreDataMember]
public override IEnumerable<string> PhysicalLocations
{
get
{
return PhysicalLocationsList;
}
}
public List<string> PhysicalLocationsList { get; set; }
protected override IEnumerable<FileSystemInfo> GetFileSystemChildren(IDirectoryService directoryService)
{
return CreateResolveArgs(directoryService).FileSystemChildren;
}
private ItemResolveArgs CreateResolveArgs(IDirectoryService directoryService)
{
var path = ContainingFolderPath;
var args = new ItemResolveArgs(ConfigurationManager.ApplicationPaths , directoryService)
{
FileInfo = new DirectoryInfo(path),
Path = path,
Parent = Parent
};
// Gather child folder and files
if (args.IsDirectory)
{
var isPhysicalRoot = args.IsPhysicalRoot;
// When resolving the root, we need it's grandchildren (children of user views)
var flattenFolderDepth = isPhysicalRoot ? 2 : 0;
var fileSystemDictionary = FileData.GetFilteredFileSystemEntries(directoryService, args.Path, FileSystem, Logger, args, flattenFolderDepth: flattenFolderDepth, resolveShortcuts: isPhysicalRoot || args.IsVf);
// Need to remove subpaths that may have been resolved from shortcuts
// Example: if \\server\movies exists, then strip out \\server\movies\action
if (isPhysicalRoot)
{
var paths = LibraryManager.NormalizeRootPathList(fileSystemDictionary.Keys);
fileSystemDictionary = paths.Select(i => (FileSystemInfo)new DirectoryInfo(i)).ToDictionary(i => i.FullName);
}
args.FileSystemDictionary = fileSystemDictionary;
}
PhysicalLocationsList = args.PhysicalLocations.ToList();
return args;
}
/// <summary>
/// Adds the virtual child.
/// </summary>
/// <param name="child">The child.</param>
/// <exception cref="System.ArgumentNullException"></exception>
public void AddVirtualChild(BaseItem child)
{
if (child == null)
{
throw new ArgumentNullException();
}
_virtualChildren.Add(child);
}
/// <summary>
/// Get the children of this folder from the actual file system
/// </summary>
/// <returns>IEnumerable{BaseItem}.</returns>
protected override IEnumerable<BaseItem> GetNonCachedChildren(IDirectoryService directoryService)
{
return base.GetNonCachedChildren(directoryService).Concat(_virtualChildren);
}
/// <summary>
/// Finds the virtual child.
/// </summary>
/// <param name="id">The id.</param>
/// <returns>BaseItem.</returns>
/// <exception cref="System.ArgumentNullException">id</exception>
public BaseItem FindVirtualChild(Guid id)
{
if (id == Guid.Empty)
{
throw new ArgumentNullException("id");
}
return _virtualChildren.FirstOrDefault(i => i.Id == id);
}
}
}
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