jellyfin/Emby.Server.Implementations/Library/ResolverHelper.cs
2019-01-13 20:54:44 +01:00

181 lines
6.5 KiB
C#

using System;
using System.IO;
using System.Linq;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.IO;
namespace Emby.Server.Implementations.Library
{
/// <summary>
/// Class ResolverHelper
/// </summary>
public static class ResolverHelper
{
/// <summary>
/// Sets the initial item values.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="parent">The parent.</param>
/// <param name="fileSystem">The file system.</param>
/// <param name="libraryManager">The library manager.</param>
/// <param name="directoryService">The directory service.</param>
/// <exception cref="System.ArgumentException">Item must have a path</exception>
public static void SetInitialItemValues(BaseItem item, Folder parent, IFileSystem fileSystem, ILibraryManager libraryManager, IDirectoryService directoryService)
{
// This version of the below method has no ItemResolveArgs, so we have to require the path already being set
if (string.IsNullOrEmpty(item.Path))
{
throw new ArgumentException("Item must have a Path");
}
// If the resolver didn't specify this
if (parent != null)
{
item.SetParent(parent);
}
item.Id = libraryManager.GetNewItemId(item.Path, item.GetType());
item.IsLocked = item.Path.IndexOf("[dontfetchmeta]", StringComparison.OrdinalIgnoreCase) != -1 ||
item.GetParents().Any(i => i.IsLocked);
// Make sure DateCreated and DateModified have values
var fileInfo = directoryService.GetFile(item.Path);
SetDateCreated(item, fileSystem, fileInfo);
EnsureName(item, item.Path, fileInfo);
}
/// <summary>
/// Sets the initial item values.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="args">The args.</param>
/// <param name="fileSystem">The file system.</param>
/// <param name="libraryManager">The library manager.</param>
public static void SetInitialItemValues(BaseItem item, ItemResolveArgs args, IFileSystem fileSystem, ILibraryManager libraryManager)
{
// If the resolver didn't specify this
if (string.IsNullOrEmpty(item.Path))
{
item.Path = args.Path;
}
// If the resolver didn't specify this
if (args.Parent != null)
{
item.SetParent(args.Parent);
}
item.Id = libraryManager.GetNewItemId(item.Path, item.GetType());
// Make sure the item has a name
EnsureName(item, item.Path, args.FileInfo);
item.IsLocked = item.Path.IndexOf("[dontfetchmeta]", StringComparison.OrdinalIgnoreCase) != -1 ||
item.GetParents().Any(i => i.IsLocked);
// Make sure DateCreated and DateModified have values
EnsureDates(fileSystem, item, args);
}
/// <summary>
/// Ensures the name.
/// </summary>
private static void EnsureName(BaseItem item, string fullPath, FileSystemMetadata fileInfo)
{
// If the subclass didn't supply a name, add it here
if (string.IsNullOrEmpty(item.Name) && !string.IsNullOrEmpty(fullPath))
{
var fileName = fileInfo == null ? Path.GetFileName(fullPath) : fileInfo.Name;
item.Name = GetDisplayName(fileName, fileInfo != null && fileInfo.IsDirectory);
}
}
/// <summary>
/// Gets the display name.
/// </summary>
/// <param name="path">The path.</param>
/// <param name="isDirectory">if set to <c>true</c> [is directory].</param>
/// <returns>System.String.</returns>
private static string GetDisplayName(string path, bool isDirectory)
{
return isDirectory ? Path.GetFileName(path) : Path.GetFileNameWithoutExtension(path);
}
/// <summary>
/// Ensures DateCreated and DateModified have values
/// </summary>
/// <param name="fileSystem">The file system.</param>
/// <param name="item">The item.</param>
/// <param name="args">The args.</param>
private static void EnsureDates(IFileSystem fileSystem, BaseItem item, ItemResolveArgs args)
{
if (fileSystem == null)
{
throw new ArgumentNullException(nameof(fileSystem));
}
if (item == null)
{
throw new ArgumentNullException(nameof(item));
}
if (args == null)
{
throw new ArgumentNullException(nameof(args));
}
// See if a different path came out of the resolver than what went in
if (!fileSystem.AreEqual(args.Path, item.Path))
{
var childData = args.IsDirectory ? args.GetFileSystemEntryByPath(item.Path) : null;
if (childData != null)
{
SetDateCreated(item, fileSystem, childData);
}
else
{
var fileData = fileSystem.GetFileSystemInfo(item.Path);
if (fileData.Exists)
{
SetDateCreated(item, fileSystem, fileData);
}
}
}
else
{
SetDateCreated(item, fileSystem, args.FileInfo);
}
}
private static void SetDateCreated(BaseItem item, IFileSystem fileSystem, FileSystemMetadata info)
{
var config = BaseItem.ConfigurationManager.GetMetadataConfiguration();
if (config.UseFileCreationTimeForDateAdded)
{
// directoryService.getFile may return null
if (info != null)
{
var dateCreated = fileSystem.GetCreationTimeUtc(info);
if (dateCreated.Equals(DateTime.MinValue))
{
dateCreated = DateTime.UtcNow;
}
item.DateCreated = dateCreated;
}
}
else
{
item.DateCreated = DateTime.UtcNow;
}
}
}
}