RebuildOnStartupHandler should not inject ExamineIndexRebuilder, but only the interface (#15465)

src/Umbraco.Infrastructure/DependencyInjection/UmbracoBuilder.Examine.cs

@@ -57,7 +57,9 @@ public static partial class UmbracoBuilderExtensions
         builder.Services.AddUnique<IDeliveryApiContentIndexFieldDefinitionBuilder, DeliveryApiContentIndexFieldDefinitionBuilder>();
         builder.Services.AddUnique<IDeliveryApiContentIndexHelper, DeliveryApiContentIndexHelper>();
         builder.Services.AddSingleton<IDeliveryApiIndexingHandler, DeliveryApiIndexingHandler>();
-        builder.Services.AddSingleton<ExamineIndexRebuilder>();
+
+        builder.Services.AddSingleton<ExamineIndexRebuilder>();  //TODO remove in Umbraco 15. Only the interface should be in the service provider
+
         builder.Services.AddUnique<IDeliveryApiCompositeIdHandler, DeliveryApiCompositeIdHandler>();
 
         builder.AddNotificationHandler<ContentCacheRefresherNotification, ContentIndexingNotificationHandler>();

src/Umbraco.Infrastructure/Examine/ExamineIndexRebuilder.cs

@@ -10,6 +10,7 @@ using Umbraco.Cms.Infrastructure.HostedServices;
 
 namespace Umbraco.Cms.Infrastructure.Examine;
 
+[Obsolete("This will be removed in Umbraco 15. Use IIndexRebuilder instead.")] // Main reason for this is to remove it form the service container. Maybe even make this internal
 public class ExamineIndexRebuilder : IIndexRebuilder
 {
     private readonly IBackgroundTaskQueue _backgroundTaskQueue;

src/Umbraco.Infrastructure/Examine/RebuildOnStartupHandler.cs

@@ -24,17 +24,38 @@ public sealed class RebuildOnStartupHandler : INotificationHandler<UmbracoReques
     private static bool _isReady;
     private static bool _isReadSet;
     private static object? _isReadyLock;
-    private readonly ExamineIndexRebuilder _backgroundIndexRebuilder;
     private readonly IRuntimeState _runtimeState;
     private readonly ISyncBootStateAccessor _syncBootStateAccessor;
+    private readonly IIndexRebuilder _indexRebuilder;
 
+    [Obsolete("Use non-obsolete constructor. This is scheduled for removal in Umbraco 15.")]
     public RebuildOnStartupHandler(
         ISyncBootStateAccessor syncBootStateAccessor,
         ExamineIndexRebuilder backgroundIndexRebuilder,
         IRuntimeState runtimeState)
+        : this(syncBootStateAccessor, (IIndexRebuilder) backgroundIndexRebuilder, runtimeState)
+    {
+
+    }
+
+    [Obsolete("Use non-obsolete constructor. This is scheduled for removal in Umbraco 15.")]
+    public RebuildOnStartupHandler(
+        ISyncBootStateAccessor syncBootStateAccessor,
+        ExamineIndexRebuilder backgroundIndexRebuilder,
+        IIndexRebuilder indexRebuilder,
+        IRuntimeState runtimeState)
+        : this(syncBootStateAccessor, indexRebuilder, runtimeState)
+    {
+
+    }
+
+    public RebuildOnStartupHandler(
+        ISyncBootStateAccessor syncBootStateAccessor,
+        IIndexRebuilder indexRebuilder,
+        IRuntimeState runtimeState)
     {
         _syncBootStateAccessor = syncBootStateAccessor;
-        _backgroundIndexRebuilder = backgroundIndexRebuilder;
+        _indexRebuilder = indexRebuilder;
         _runtimeState = runtimeState;
     }
 
@@ -58,7 +79,7 @@ public sealed class RebuildOnStartupHandler : INotificationHandler<UmbracoReques
                 SyncBootState bootState = _syncBootStateAccessor.GetSyncBootState();
 
                 // if it's not a cold boot, only rebuild empty ones
-                _backgroundIndexRebuilder.RebuildIndexes(
+                _indexRebuilder.RebuildIndexes(
                     bootState != SyncBootState.ColdBoot,
                     TimeSpan.FromMinutes(1));
 

tests/Umbraco.Tests.Integration/DependencyInjection/UmbracoBuilderExtensions.cs

@@ -46,7 +46,7 @@ public static class UmbracoBuilderExtensions
         builder.Services.AddUnique(Mock.Of<IUmbracoBootPermissionChecker>());
         builder.Services.AddUnique(testHelper.MainDom);
 
-        builder.Services.AddUnique<ExamineIndexRebuilder, TestBackgroundIndexRebuilder>();
+        builder.Services.AddUnique<IIndexRebuilder, TestBackgroundIndexRebuilder>();
         builder.Services.AddUnique(factory => Mock.Of<IRuntimeMinifier>());
 
         // we don't want persisted nucache files in tests