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Merge pull request #15883 from peppy/realm-integration/skins-filename-lookup-performance

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Optimise skin filename lookups post realm migration
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Dean Herbert 2021-12-06 18:40:12 +09:00 committed by GitHub
commit bab9e0542b
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1 changed files with 11 additions and 17 deletions
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28
osu.Game/Skinning/LegacyDatabasedSkinResourceStore.cs
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@ -1,25 +1,28 @@
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System;
using System.Collections.Generic;
using System.Linq;
using osu.Framework.Extensions;
using osu.Framework.IO.Stores;
using osu.Game.Database;
using osu.Game.Extensions;
using Realms;
namespace osu.Game.Skinning
{
public class LegacyDatabasedSkinResourceStore : ResourceStore<byte[]>
{
private readonly ILive<SkinInfo> source;
private readonly Dictionary<string, string> fileToStoragePathMapping = new Dictionary<string, string>();
public LegacyDatabasedSkinResourceStore(SkinInfo source, IResourceStore<byte[]> underlyingStore)
: base(underlyingStore)
{
this.source = source.ToLive();
initialiseFileCache(source);
}
private void initialiseFileCache(SkinInfo source)
{
fileToStoragePathMapping.Clear();
foreach (var f in source.Files)
fileToStoragePathMapping[f.Filename.ToLowerInvariant()] = f.File.GetStoragePath();
}
protected override IEnumerable<string> GetFilenames(string name)
@ -33,17 +36,8 @@ namespace osu.Game.Skinning
}
private string getPathForFile(string filename) =>
source.PerformRead(s =>
{
if (s.IsManaged)
{
// avoid enumerating all files if this is a managed realm instance.
return s.Files.Filter(@"Filename ==[c] $0", filename).FirstOrDefault()?.File.GetStoragePath();
}
fileToStoragePathMapping.TryGetValue(filename.ToLower(), out string path) ? path : null;
return s.Files.FirstOrDefault(f => string.Equals(f.Filename, filename, StringComparison.OrdinalIgnoreCase))?.File.GetStoragePath();
});
public override IEnumerable<string> GetAvailableResources() => source.PerformRead(s => s.Files.Select(f => f.Filename));
public override IEnumerable<string> GetAvailableResources() => fileToStoragePathMapping.Keys;
}
}