/**
  *
  * @param array $itemNodeIdentifiers
  * @return array
  * @author Karsten Dambekalns <*****@*****.**>
  */
 protected function processArrayProxyForExport(array $arrayProxyData, &$exportData)
 {
     $items = array();
     foreach ($arrayProxyData['subNodeIdentifiers'] as $identifier) {
         $nodeData = $this->getNodeData($identifier);
         switch ($nodeData['nodetype']) {
             case 'objectProxy':
                 $items[$nodeData['name']] = array('type' => 'object', 'value' => $nodeData['properties'][0]['value']);
                 break;
             case 'arrayProxy':
                 throw new \RuntimeException('Sorry, your data cannot be migrated. Nested arrays are not (yet) supported.');
                 break;
             case 'splObjectStorageProxy':
                 throw new \RuntimeException('Sorry, your data cannot be migrated. SplObjectStorage instances in arrays are not (yet) supported.');
                 break;
             default:
                 $exportData[$identifier] = $this->processNodeForExport($identifier, $exportData);
                 $items[$nodeData['name']] = array('type' => 'object', 'value' => $identifier);
                 break;
         }
     }
     foreach ($arrayProxyData['properties'] as $property) {
         $items[$property['name']] = array('type' => strtolower(\PropertyType::typeFromType($property['type'])), 'value' => $property['value']);
     }
     return $items;
 }