| | | 1 | | using Microsoft.Extensions.DependencyInjection; |
| | | 2 | | |
| | | 3 | | namespace TeleFlow.Framework.Application; |
| | | 4 | | |
| | | 5 | | /// <summary> |
| | | 6 | | /// Executes TeleFlow application lifecycle tasks around update source execution. |
| | | 7 | | /// This runner is transport-agnostic so plain application execution and future hosting integration |
| | | 8 | | /// can share the same startup and shutdown semantics. |
| | | 9 | | /// </summary> |
| | | 10 | | internal sealed class TeleFlowApplicationLifecycleRunner |
| | | 11 | | { |
| | | 12 | | private readonly IServiceScopeFactory _scopeFactory; |
| | | 13 | | private readonly IReadOnlyList<TeleFlowStartupTaskRegistration> _startupTasks; |
| | | 14 | | private readonly IReadOnlyList<TeleFlowShutdownTaskRegistration> _shutdownTasks; |
| | | 15 | | |
| | | 16 | | public TeleFlowApplicationLifecycleRunner( |
| | | 17 | | IServiceScopeFactory scopeFactory, |
| | | 18 | | IReadOnlyList<TeleFlowStartupTaskRegistration> startupTasks, |
| | | 19 | | IReadOnlyList<TeleFlowShutdownTaskRegistration> shutdownTasks) |
| | | 20 | | { |
| | 48 | 21 | | _scopeFactory = scopeFactory ?? throw new ArgumentNullException(nameof(scopeFactory)); |
| | 48 | 22 | | _startupTasks = startupTasks ?? throw new ArgumentNullException(nameof(startupTasks)); |
| | 48 | 23 | | _shutdownTasks = shutdownTasks ?? throw new ArgumentNullException(nameof(shutdownTasks)); |
| | 48 | 24 | | } |
| | | 25 | | |
| | | 26 | | public async ValueTask RunStartupAsync(CancellationToken cancellationToken = default) |
| | | 27 | | { |
| | 100 | 28 | | foreach (var registration in _startupTasks) |
| | | 29 | | { |
| | 7 | 30 | | await ExecuteStartupTaskAsync(registration.TaskType, cancellationToken).ConfigureAwait(false); |
| | | 31 | | } |
| | 42 | 32 | | } |
| | | 33 | | |
| | | 34 | | public async ValueTask RunShutdownAsync(CancellationToken cancellationToken = default) |
| | | 35 | | { |
| | 96 | 36 | | for (var index = _shutdownTasks.Count - 1; index >= 0; index--) |
| | | 37 | | { |
| | 7 | 38 | | await ExecuteShutdownTaskAsync(_shutdownTasks[index].TaskType, cancellationToken).ConfigureAwait(false); |
| | | 39 | | } |
| | 41 | 40 | | } |
| | | 41 | | |
| | | 42 | | private async ValueTask ExecuteStartupTaskAsync( |
| | | 43 | | Type taskType, |
| | | 44 | | CancellationToken cancellationToken) |
| | | 45 | | { |
| | 7 | 46 | | var scope = _scopeFactory.CreateAsyncScope(); |
| | 7 | 47 | | await using (scope.ConfigureAwait(false)) |
| | | 48 | | { |
| | 7 | 49 | | var task = (ITeleFlowStartupTask)ActivatorUtilities.CreateInstance(scope.ServiceProvider, taskType); |
| | | 50 | | |
| | 7 | 51 | | await task.ExecuteAsync(cancellationToken).ConfigureAwait(false); |
| | | 52 | | } |
| | 5 | 53 | | } |
| | | 54 | | |
| | | 55 | | private async ValueTask ExecuteShutdownTaskAsync( |
| | | 56 | | Type taskType, |
| | | 57 | | CancellationToken cancellationToken) |
| | | 58 | | { |
| | 7 | 59 | | var scope = _scopeFactory.CreateAsyncScope(); |
| | 7 | 60 | | await using (scope.ConfigureAwait(false)) |
| | | 61 | | { |
| | 7 | 62 | | var task = (ITeleFlowShutdownTask)ActivatorUtilities.CreateInstance(scope.ServiceProvider, taskType); |
| | | 63 | | |
| | 7 | 64 | | await task.ExecuteAsync(cancellationToken).ConfigureAwait(false); |
| | | 65 | | } |
| | 6 | 66 | | } |
| | | 67 | | } |