From 7a1e134978491dfa4a1e7212e2009c8ac8ecef5b Mon Sep 17 00:00:00 2001
From: Nikolaj Geisle <70372949+Zeegaan@users.noreply.github.com>
Date: Mon, 23 May 2022 10:33:29 +0200
Subject: [PATCH] Revert "Remove
 UmbracoApplicationComponentsInstallingNotification.cs"

This reverts commit f6d39cd7e1cb63ccefec48a5a89bf54069e5a1b8.
---
 ...icationComponentsInstallingNotification.cs | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 src/Umbraco.Core/Notifications/UmbracoApplicationComponentsInstallingNotification.cs

diff --git a/src/Umbraco.Core/Notifications/UmbracoApplicationComponentsInstallingNotification.cs b/src/Umbraco.Core/Notifications/UmbracoApplicationComponentsInstallingNotification.cs
new file mode 100644
index 0000000000..7f8d852115
--- /dev/null
+++ b/src/Umbraco.Core/Notifications/UmbracoApplicationComponentsInstallingNotification.cs
@@ -0,0 +1,29 @@
+// Copyright (c) Umbraco.
+// See LICENSE for more details.
+
+using System;
+
+namespace Umbraco.Cms.Core.Notifications
+{
+    // TODO (V10): Remove this class.
+
+    /// <summary>
+    /// Notification that occurs during the Umbraco boot process, before instances of <see cref="IComponent"/> initialize.
+    /// </summary>
+    [Obsolete("This notification was added to the core runtime start-up as a hook for Umbraco Cloud local connection string and database setup. " +
+        "Following re-work they are no longer used (from Deploy 9.2.0)." +
+        "Given they are non-documented and no other use is expected, they can be removed in the next major release")]
+    public class UmbracoApplicationComponentsInstallingNotification : INotification
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="UmbracoApplicationComponentsInstallingNotification"/> class.
+        /// </summary>
+        /// <param name="runtimeLevel">The runtime level</param>
+        public UmbracoApplicationComponentsInstallingNotification(RuntimeLevel runtimeLevel) => RuntimeLevel = runtimeLevel;
+
+        /// <summary>
+        /// Gets the runtime level of execution.
+        /// </summary>
+        public RuntimeLevel RuntimeLevel { get; }
+    }
+}