chore: silence an error and log it

common/oatbox/event/EventManager.php

@@ -21,8 +21,10 @@
 
 namespace oat\oatbox\event;
 
+use common_Logger;
 use oat\oatbox\service\ConfigurableService;
 use oat\oatbox\service\ServiceNotFoundException;
+use Throwable;
 
 /**
  * The simple placeholder ServiceManager
@@ -52,9 +54,18 @@ public function trigger($event, $params = [])
         $event = is_object($event) ? $event : new GenericEvent($event, $params);
 
         foreach ($this->getListeners($event) as $callback) {
+            $callbackName = $callback;
+
             if (is_array($callback) && count($callback) == 2) {
-                list($key, $function) = $callback;
+                [$key, $function] = $callback;
+
+                if (is_object($key)) {
+                    $callbackName = sprintf('%s::%s', get_class($key), $function);
+                }
+
                 if (is_string($key)) {
+                    $callbackName = sprintf('%s::%s', $key, $function);
+
                     try {
                         $service = $container->get($key);
                         $callback = [$service, $function];
@@ -64,6 +75,18 @@ public function trigger($event, $params = [])
                 }
             }
 
+            if (!is_callable($callback)) {
+                common_Logger::w(
+                    sprintf(
+                        'Event manager cannot call %s because it is not a callable. '
+                        . 'Notice, that classes registered in DI container cannot be executed during the installation',
+                        $callbackName
+                    )
+                );
+
+                continue;
+            }
+
             call_user_func($callback, $event);
         }
     }

core/kernel/classes/class.Resource.php

@@ -757,24 +757,28 @@ public function equals(core_kernel_classes_Resource $resource): bool
     }
 
     /**
-     * Whenever or not the current resource is
-     * an instance of the specified class
+     * Whenever or not the current resource is an instance of the specified class
      *
-     * @access public
      * @author Joel Bout, <[email protected]>
-     * @param  Class class
-     * @return boolean
      */
     public function isInstanceOf(core_kernel_classes_Class $class): bool
     {
-        $returnValue = (bool) false;
-        foreach ($this->getTypes() as $type) {
-            if ($class->equals($type) || $type->isSubClassOf($class)) {
-                $returnValue = true;
-                break;
-            }
-        }
-        return (bool) $returnValue;
+        return in_array($class->getUri(), $this->getParentClassesIds(), true);
+    }
+
+    public function getRootId(): string
+    {
+        $parentClassesIds = $this->getParentClassesIds();
+
+        return array_pop($parentClassesIds);
+    }
+
+    /**
+     * Return the parent class URI of a resource
+     */
+    public function getParentClassId(): ?string
+    {
+        return current($this->getParentClassesIds()) ?: null;
     }
 
     public function getParentClassesIds(): array