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Fix bug in cache reset: oversee command was long running task that wa…
…s executed inside one transaction
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Source/ImoutoRebirth.Room/ImoutoRebirth.Room.Application/Cqrs/OverseeCommand.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,69 +1,36 @@ | ||
| using ImoutoRebirth.Common.Cqrs.Abstract; | ||
| using ImoutoRebirth.Room.Application.Services; | ||
| using MediatR; | ||
| using Microsoft.Extensions.Logging; | ||
|
|
||
| namespace ImoutoRebirth.Room.Application.Cqrs; | ||
|
|
||
| public record OverseeCommand(bool RepeatWhenNewFilesAreDiscovered) : ICommand; | ||
| public record OverseeCommand : ICommand<OverseeCollectionResult>; | ||
|
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| internal class OverseeCommandHandler : ICommandHandler<OverseeCommand> | ||
| internal class OverseeCommandHandler : ICommandHandler<OverseeCommand, OverseeCollectionResult> | ||
| { | ||
| private static readonly SemaphoreSlim SemaphoreSlim = new(1); | ||
| private readonly IMediator _mediator; | ||
| private readonly ICollectionRepository _collectionRepository; | ||
| private readonly ILogger _logger; | ||
|
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| public OverseeCommandHandler( | ||
| IMediator mediator, | ||
| ICollectionRepository collectionRepository, | ||
| ILogger<OverseeCommandHandler> logger) | ||
| ICollectionRepository collectionRepository) | ||
| { | ||
| _collectionRepository = collectionRepository; | ||
| _logger = logger; | ||
| _mediator = mediator; | ||
| } | ||
|
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| public async Task Handle(OverseeCommand request, CancellationToken ct) | ||
| public async Task<OverseeCollectionResult> Handle(OverseeCommand request, CancellationToken ct) | ||
| { | ||
| if (!await SemaphoreSlim.WaitAsync(0, ct)) | ||
| { | ||
| _logger.LogTrace("Oversee process have not finished yet"); | ||
| return; | ||
| } | ||
|
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| var runMoreTimes = 0; | ||
| do | ||
| { | ||
| var anyFileMoved = false; | ||
| try | ||
| { | ||
| var collectionIds = await _collectionRepository.GetAllIds(); | ||
| var anyFileMoved = false; | ||
|
|
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| foreach (var id in collectionIds) | ||
| { | ||
| var result = await _mediator.Send(new OverseeCollectionCommand(id), ct); | ||
| anyFileMoved |= result.AnyFileMoved; | ||
| } | ||
|
|
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| if (!request.RepeatWhenNewFilesAreDiscovered) | ||
| break; | ||
| } | ||
| catch (Exception e) | ||
| { | ||
| _logger.LogError(e, "Oversee process error"); | ||
| break; | ||
| } | ||
| var collectionIds = await _collectionRepository.GetAllIds(); | ||
|
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| if (anyFileMoved) | ||
| runMoreTimes = 10; | ||
|
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| runMoreTimes--; | ||
| if (runMoreTimes > 0) | ||
| await Task.Delay(500, ct); | ||
| foreach (var id in collectionIds) | ||
| { | ||
| var result = await _mediator.Send(new OverseeCollectionCommand(id), ct); | ||
| anyFileMoved |= result.AnyFileMoved; | ||
| } | ||
|
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||
| } while (runMoreTimes > 0); | ||
|
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| SemaphoreSlim.Release(); | ||
| return new(anyFileMoved); | ||
| } | ||
| } |
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