add convenience methods to JobResult

        }

    }

    public function getDocuments(): \Iterator

    {

        foreach($this->getFiles() as $file) {

            if (!in_array($file->getFileName(), ['out.log', 'job.json'])) {

                yield $file;

            }

        }

    }

    public function getLog(): \Iterator

    {

        foreach ($this->getFiles() as $file){

            if($file->getFileName() == 'out.log'){

                $content = file_get_contents((string)$file);

                $lines = explode(PHP_EOL, $content);

                foreach ($lines as $line){

                    $entry = json_decode($line, true);

                    if($entry){

                        yield $entry;

                    }

                }

            }

        }

    }

    public function __destruct()

    {

        @\unlink($this->result_file_path);