protected function getDropFolderFilesFromPhysicalFolder()
 {
     if ($this->fileTransferMgr->fileExists($this->dropFolder->path)) {
         $physicalFiles = $this->fileTransferMgr->listFileObjects($this->dropFolder->path);
         if ($physicalFiles) {
             KalturaLog::log('Found [' . count($physicalFiles) . '] in the folder');
         } else {
             KalturaLog::info('No physical files found for drop folder id [' . $this->dropFolder->id . '] with path [' . $this->dropFolder->path . ']');
             $physicalFiles = array();
         }
     } else {
         throw new kFileTransferMgrException('Drop folder path not valid [' . $this->dropFolder->path . ']', kFileTransferMgrException::remotePathNotValid);
     }
     KalturaLog::info("physical files: ");
     foreach ($physicalFiles as &$currlFile) {
         KalturaLog::info(print_r($currlFile, true));
     }
     return $physicalFiles;
 }