83 lines
3.3 KiB
C#
83 lines
3.3 KiB
C#
// (c) Copyright Ascensio System SIA 2010-2022
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//
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// This program is a free software product.
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// You can redistribute it and/or modify it under the terms
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// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
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// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
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// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
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// any third-party rights.
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//
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// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
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// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, see
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// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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//
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// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
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//
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// The interactive user interfaces in modified source and object code versions of the Program must
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// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
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//
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// Pursuant to Section 7(b) of the License you must retain the original Product logo when
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// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
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// trademark law for use of our trademarks.
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//
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// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
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// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
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// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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using System.Threading.Channels;
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namespace ASC.Files.ThumbnailBuilder;
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[Singletone]
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public class ThumbnailBuilderService : BackgroundService
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{
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private readonly IServiceScopeFactory _serviceScopeFactory;
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private readonly ThumbnailSettings _thumbnailSettings;
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private readonly ILogger<ThumbnailBuilderService> _logger;
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private readonly BuilderQueue<int> _builderQueue;
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private readonly ChannelReader<IEnumerable<FileData<int>>> _channelReader;
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public ThumbnailBuilderService(
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BuilderQueue<int> builderQueue,
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IServiceScopeFactory serviceScopeFactory,
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ILogger<ThumbnailBuilderService> logger,
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ThumbnailSettings settings,
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ChannelReader<IEnumerable<FileData<int>>> channelReader)
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{
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_serviceScopeFactory = serviceScopeFactory;
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_thumbnailSettings = settings;
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_logger = logger;
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_builderQueue = builderQueue;
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_channelReader = channelReader;
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}
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protected override async Task ExecuteAsync(CancellationToken stoppingToken)
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{
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_logger.InformationThumbnailWorkerRunnig();
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stoppingToken.Register(() => _logger.InformationThumbnailWorkerStopping());
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var fetchedData = new List<FileData<int>>();
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while (!stoppingToken.IsCancellationRequested)
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{
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_logger.TraceProcedureStart();
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await foreach (var rawData in _channelReader.ReadAllAsync(stoppingToken))
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{
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fetchedData.AddRange(rawData);
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if (_channelReader.CanCount && _channelReader.Count > 0 && _thumbnailSettings.BatchSize >= fetchedData.Count())
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{
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continue;
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}
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await _builderQueue.BuildThumbnails(fetchedData);
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fetchedData = new List<FileData<int>>();
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}
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}
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_logger.InformationThumbnailWorkerStopping();
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}
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} |