/**
  * Verify that the passed in order item is in the collection of Magento order items.
  * @param  Varien_Data_Collection $items
  * @param  OrderEvents\IOrderItem $orderItem
  * @return self
  */
 protected function _verifyItem(Varien_Data_Collection $items, OrderEvents\IOrderItem $orderItem)
 {
     $sku = $orderItem->getItemId();
     $item = $items->getItemByColumnValue('sku', $sku);
     if (is_null($item)) {
         $logMessage = "Magento did not add an expected-to-be-shipped item ({$sku}) to the shipment.";
         $this->_logger->warning($logMessage, $this->_context->getMetaData(__CLASS__));
     }
     return $this;
 }
 /**
  * Append a new quantity index to the passed in 'qtys' array when a match Magento
  * order item is found in the pass in items collection.
  * @param  OrderEvents\IOrderItem $orderItem
  * @param  Varien_Data_Collection $items
  * @param  array $qtys
  * @return self
  */
 protected function _appendToQtyArray(OrderEvents\IOrderItem $orderItem, Varien_Data_Collection $items, array $qtys)
 {
     $item = $items->getItemByColumnValue('sku', $orderItem->getItemId());
     if ($item) {
         // Magento only support integer quantity
         $qtys[$item->getItemId()] = (int) $orderItem->getQuantity();
     }
     return $qtys;
 }