102 lines
4.1 KiB
C#
102 lines
4.1 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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namespace ASC.Core.Common.Hosting;
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[Singletone]
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public class RegisterInstanceWorkerService<T> : BackgroundService where T : IHostedService
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{
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private readonly ILogger _logger;
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private readonly IHostApplicationLifetime _applicationLifetime;
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private readonly IServiceProvider _serviceProvider;
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private readonly int _intervalCheckRegisterInstanceInSeconds;
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public static readonly string InstanceId =
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$"{typeof(T).GetFormattedName()}_{DateTime.UtcNow.Ticks}";
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public RegisterInstanceWorkerService(
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ILogger<RegisterInstanceWorkerService<T>> logger,
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IServiceProvider serviceProvider,
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IHostApplicationLifetime applicationLifetime,
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IConfiguration configuration)
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{
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_logger = logger;
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_serviceProvider = serviceProvider;
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_applicationLifetime = applicationLifetime;
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if (!int.TryParse(configuration["core:hosting:intervalCheckRegisterInstanceInSeconds"], out _intervalCheckRegisterInstanceInSeconds))
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{
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_intervalCheckRegisterInstanceInSeconds = 1;
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}
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_intervalCheckRegisterInstanceInSeconds = _intervalCheckRegisterInstanceInSeconds*1000;
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}
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protected override async Task ExecuteAsync(CancellationToken stoppingToken)
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{
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while (!stoppingToken.IsCancellationRequested)
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{
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try
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{
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using var scope = _serviceProvider.CreateScope();
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var registerInstanceService = scope.ServiceProvider.GetService<IRegisterInstanceManager<T>>();
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await registerInstanceService.Register(InstanceId);
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await registerInstanceService.DeleteOrphanInstances();
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_logger.TraceWorkingRunnging(DateTimeOffset.Now);
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await Task.Delay(_intervalCheckRegisterInstanceInSeconds, stoppingToken);
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}
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catch (Exception ex)
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{
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_logger.CriticalError(ex);
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_applicationLifetime.StopApplication();
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}
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}
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}
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public override async Task StopAsync(CancellationToken cancellationToken)
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{
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try
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{
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using var scope = _serviceProvider.CreateScope();
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var registerInstanceService = scope.ServiceProvider.GetService<IRegisterInstanceManager<T>>();
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await registerInstanceService.UnRegister(InstanceId);
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_logger.InformationUnRegister(InstanceId, DateTimeOffset.Now);
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}
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catch
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{
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_logger.ErrorUnableToUnRegister(InstanceId, DateTimeOffset.Now);
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}
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await base.StopAsync(cancellationToken);
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}
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}
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