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using System;
using System.Collections.Generic;
using System.Linq;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.IO;
using MediaBrowser.Controller.Providers;
namespace MediaBrowser.Controller.Entities
{
/// <summary>
/// Provides a base entity for all of our types
/// </summary>
public abstract class BaseEntity
{
public string Name { get; set; }
public Guid Id { get; set; }
public string Path { get; set; }
public Folder Parent { get; set; }
public string PrimaryImagePath { get; set; }
public DateTime DateCreated { get; set; }
public DateTime DateModified { get; set; }
public override string ToString()
{
return Name;
}
protected Dictionary<Guid, BaseProviderInfo> _providerData;
/// <summary>
/// Holds persistent data for providers like last refresh date.
/// Providers can use this to determine if they need to refresh.
/// The BaseProviderInfo class can be extended to hold anything a provider may need.
///
/// Keyed by a unique provider ID.
/// </summary>
public Dictionary<Guid, BaseProviderInfo> ProviderData
{
get
{
if (_providerData == null) _providerData = new Dictionary<Guid, BaseProviderInfo>();
return _providerData;
}
set
{
_providerData = value;
}
}
protected ItemResolveEventArgs _resolveArgs;
/// <summary>
/// We attach these to the item so that we only ever have to hit the file system once
/// (this includes the children of the containing folder)
/// Use ResolveArgs.FileSystemChildren to check for the existence of files instead of File.Exists
/// </summary>
public ItemResolveEventArgs ResolveArgs
{
get
{
if (_resolveArgs == null)
{
_resolveArgs = new ItemResolveEventArgs()
{
FileInfo = FileData.GetFileData(this.Path),
Parent = this.Parent,
Cancel = false,
Path = this.Path
};
_resolveArgs = FileSystemHelper.FilterChildFileSystemEntries(_resolveArgs, (this.Parent != null && this.Parent.IsRoot));
}
return _resolveArgs;
}
set
{
_resolveArgs = value;
}
}
/// <summary>
/// Refresh metadata on us by execution our provider chain
/// </summary>
/// <returns>true if a provider reports we changed</returns>
public bool RefreshMetadata()
{
Kernel.Instance.ExecuteMetadataProviders(this).ConfigureAwait(false);
return true;
}
}
}
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