refactor: extract rollback functionality

Author: AndreaGiulianelli

src/main/kotlin/application/controller/RoomController.kt

@@ -10,6 +10,7 @@ package application.controller
 
 import application.controller.manager.RoomDatabaseManager
 import application.controller.manager.RoomDigitalTwinManager
+import application.controller.util.rollback
 import entity.zone.Room
 import entity.zone.RoomID
 import usecase.repository.RoomRepository
@@ -43,10 +44,4 @@ class RoomController(
         }
 
     override fun getRooms(): Set<Room> = this.roomDatabaseManager.getAllRooms()
-
-    private fun Boolean.rollback(rollbackActions: () -> Unit): Boolean =
-        if (!this) {
-            rollbackActions()
-            false
-        } else true
 }

src/main/kotlin/application/controller/util/Rollback.kt

@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2023. Smart Operating Block
+ *
+ * Use of this source code is governed by an MIT-style
+ * license that can be found in the LICENSE file or at
+ * https://opensource.org/licenses/MIT.
+ */
+
+package application.controller.util
+
+/**
+ * Extension method used with methods that return a boolean result status
+ * that allows to perform [rollbackActions] when it returns false.
+ */
+fun Boolean.rollback(rollbackActions: () -> Unit): Boolean =
+    if (!this) {
+        rollbackActions()
+        false
+    } else true