adding

2026-03-13 09:11:35 -05:00
parent f004c8205a
commit c2d6bda458
197 changed files with 14970 additions and 0 deletions
@@ -0,0 +1,62 @@
+using Microsoft.Extensions.Hosting;
+using OwnerNumberMigration.ValueParsing;
+
+namespace OwnerNumberMigration.Migrations;
+
+public abstract class AttributeMigrationTask<T> : IHostedService
+{
+    private readonly IAttributeMigration _migration;
+    private readonly CancellationTokenSource _cancellation = new();
+    private readonly IMigrationManager _manager;
+
+    private Task? _runningMigration;
+
+    protected AttributeMigrationTask
+    (
+        string sourceAttribute,
+        string destinationAttribute,
+        AttributeMigrationFactory<T> factory,
+        IParsingStrategyFactory strategyFactory,
+        IMigrationManager manager
+    )
+    {
+        _manager = manager;
+        _migration = factory
+        (
+            sourceAttribute,
+            strategyFactory.CreateParsingStrategy<T>(sourceAttribute),
+            destinationAttribute
+        );
+    }
+
+    public Task StartAsync(CancellationToken cancellationToken)
+    {
+        if (cancellationToken.IsCancellationRequested) return Task.CompletedTask;
+
+        _manager.Start(_runningMigration = _migration.Migrate(_cancellation.Token));
+
+        return Task.CompletedTask;
+    }
+
+    public async Task StopAsync(CancellationToken cancellationToken)
+    {
+        if (_runningMigration is not null)
+        {
+            if (!_runningMigration.IsCompleted)
+            {
+                _cancellation.Cancel();
+                try
+                {
+                    await _runningMigration;
+                }
+                catch (TaskCanceledException)
+                {
+                }
+            }
+
+            _runningMigration.Dispose();
+        }
+
+        _cancellation.Dispose();
+    }
+}