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125 lines
3.6 KiB
C#
125 lines
3.6 KiB
C#
using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.IO;
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using MediaBrowser.Controller.Library;
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using System;
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using System.IO;
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namespace MediaBrowser.Controller.Resolvers
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{
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public abstract class BaseItemResolver<T> : IBaseItemResolver
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where T : BaseItem, new()
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{
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protected virtual T Resolve(ItemResolveEventArgs args)
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{
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return null;
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}
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public virtual ResolverPriority Priority
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{
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get
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{
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return ResolverPriority.First;
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}
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}
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/// <summary>
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/// Sets initial values on the newly resolved item
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/// </summary>
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protected virtual void SetInitialItemValues(T item, ItemResolveEventArgs args)
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{
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// If the subclass didn't specify this
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if (string.IsNullOrEmpty(item.Path))
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{
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item.Path = args.Path;
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}
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// If the subclass didn't specify this
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if (args.Parent != null)
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{
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item.Parent = args.Parent;
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}
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item.Id = Kernel.GetMD5(item.Path);
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}
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public BaseItem ResolvePath(ItemResolveEventArgs args)
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{
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T item = Resolve(args);
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if (item != null)
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{
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// Set initial values on the newly resolved item
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SetInitialItemValues(item, args);
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// Make sure the item has a name
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EnsureName(item);
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// Make sure DateCreated and DateModified have values
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EnsureDates(item, args);
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}
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return item;
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}
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private void EnsureName(T item)
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{
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// If the subclass didn't supply a name, add it here
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if (string.IsNullOrEmpty(item.Name))
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{
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item.Name = Path.GetFileNameWithoutExtension(item.Path);
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}
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}
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/// <summary>
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/// Ensures DateCreated and DateModified have values
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/// </summary>
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private void EnsureDates(T item, ItemResolveEventArgs args)
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{
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if (!Path.IsPathRooted(item.Path))
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{
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return;
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}
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// See if a different path came out of the resolver than what went in
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if (!args.Path.Equals(item.Path, StringComparison.OrdinalIgnoreCase))
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{
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WIN32_FIND_DATA? childData = args.GetFileSystemEntry(item.Path);
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if (childData != null)
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{
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item.DateCreated = childData.Value.CreationTimeUtc;
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item.DateModified = childData.Value.LastWriteTimeUtc;
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}
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else
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{
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WIN32_FIND_DATA fileData = FileData.GetFileData(item.Path);
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item.DateCreated = fileData.CreationTimeUtc;
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item.DateModified = fileData.LastWriteTimeUtc;
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}
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}
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else
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{
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item.DateCreated = args.FileInfo.CreationTimeUtc;
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item.DateModified = args.FileInfo.LastWriteTimeUtc;
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}
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}
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}
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/// <summary>
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/// Weed this to keep a list of resolvers, since Resolvers are built with generics
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/// </summary>
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public interface IBaseItemResolver
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{
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BaseItem ResolvePath(ItemResolveEventArgs args);
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ResolverPriority Priority { get; }
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}
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public enum ResolverPriority
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{
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First = 1,
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Second = 2,
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Third = 3,
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Last = 4
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}
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}
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