/** * Exports es index to provided file. * * @param Manager $manager * @param string $filename * @param array $types * @param int $chunkSize * @param OutputInterface $output */ public function exportIndex(Manager $manager, $filename, $types, $chunkSize, OutputInterface $output) { $params = ['search_type' => 'scan', 'scroll' => '5m', 'size' => $chunkSize, 'source' => true, 'body' => ['query' => ['match_all' => []]], 'index' => $manager->getIndexName(), 'type' => $types]; $results = new SearchHitIterator(new SearchResponseIterator($manager->getClient(), $params)); $progress = new ProgressBar($output, $results->count()); $progress->setRedrawFrequency(100); $progress->start(); $metadata = ['count' => $results->count(), 'date' => date(\DateTime::ISO8601)]; $writer = $this->getWriter($this->getFilePath($filename), $metadata); foreach ($results as $data) { $doc = array_intersect_key($data, array_flip(['_id', '_type', '_source', 'fields'])); $writer->push($doc); $progress->advance(); } $writer->finalize(); $progress->finish(); $output->writeln(''); }