DocSpace-buildtools/products/ASC.Files/Service/Thumbnail/ThumbnailService.cs

69 lines
2.6 KiB
C#

// (c) Copyright Ascensio System SIA 2010-2022
//
// This program is a free software product.
// You can redistribute it and/or modify it under the terms
// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
// any third-party rights.
//
// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, see
// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
//
// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
//
// The interactive user interfaces in modified source and object code versions of the Program must
// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
//
// Pursuant to Section 7(b) of the License you must retain the original Product logo when
// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
// trademark law for use of our trademarks.
//
// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
namespace ASC.Files.ThumbnailBuilder;
[Singletone]
public class ThumbnailService : IHostedService
{
private readonly ICacheNotify<ThumbnailRequest> _cacheNotify;
private readonly ILog _logger;
public ThumbnailService(ICacheNotify<ThumbnailRequest> cacheNotify, IOptionsMonitor<ILog> options)
{
_cacheNotify = cacheNotify;
_logger = options.Get("ASC.Files.ThumbnailService");
}
public Task StartAsync(CancellationToken cancellationToken)
{
_logger.Info("Thumbnail Service running.");
_cacheNotify.Subscribe(BuildThumbnails, CacheNotifyAction.Insert);
return Task.CompletedTask;
}
public Task StopAsync(CancellationToken cancellationToken)
{
_logger.Info("Thumbnail Service is stopping.");
_cacheNotify.Unsubscribe(CacheNotifyAction.Insert);
return Task.CompletedTask;
}
public void BuildThumbnails(ThumbnailRequest request)
{
foreach (var fileId in request.Files)
{
var fileData = new FileData<int>(request.Tenant, fileId, request.BaseUrl);
FileDataQueue.Queue.TryAdd(fileId, fileData);
}
}
}