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<?php |
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namespace GBProd\ElasticaProviderBundle\Provider; |
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use Elastica\Client; |
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use GBProd\ElasticaProviderBundle\Event\HasProvidedDocument; |
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use Symfony\Component\EventDispatcher\EventDispatcherInterface; |
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/** |
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* Abstract class for data providing |
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* |
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* @author gbprod <[email protected]> |
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*/ |
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abstract class BulkProvider implements Provider |
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{ |
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const DEFAULT_BULK_SIZE = 1000; |
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/** |
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* @var Client |
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*/ |
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private $client; |
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/** |
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* @var string |
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*/ |
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private $index; |
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/** |
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* @var string |
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*/ |
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private $type; |
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/** |
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* @var EventDispatcherInterface |
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*/ |
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private $dispatcher; |
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/** |
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* @var int |
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*/ |
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private $bulkSize = self::DEFAULT_BULK_SIZE; |
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/** |
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* @var array |
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*/ |
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private $currentBulk; |
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/** |
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* @var int |
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*/ |
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private $currentBulkSize; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function run(Client $client, $index, $type, EventDispatcherInterface $dispatcher) |
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{ |
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$this->initialize($client, $index, $type, $dispatcher); |
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$this->populate(); |
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$this->commit(); |
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} |
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private function initialize(Client $client, $index, $type, EventDispatcherInterface $dispatcher) |
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{ |
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$this->client = $client; |
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$this->index = $index; |
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$this->type = $type; |
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$this->dispatcher = $dispatcher; |
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$this->currentBulkSize = 0; |
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$this->currentBulk = ['body' => []]; |
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} |
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/** |
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* Populate |
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* |
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* @return null |
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*/ |
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abstract protected function populate(); |
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private function commit() |
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{ |
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if ($this->hasBulk()) { |
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$this->flushBulk(); |
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} |
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$this->client->refreshAll(); |
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} |
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/** |
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* Index document |
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* |
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* @param string $id |
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* @param array $body |
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*/ |
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public function index($id, array $body) |
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{ |
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$this->addBulkAction('index', $id, $body); |
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} |
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private function addBulkAction($action, $id, array $body = null) |
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{ |
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$this->addBulkData($action, $id, $body); |
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$this->incrementBulk(); |
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$this->dispatcher->dispatch( |
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'elasticsearch.has_provided_document', |
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new HasProvidedDocument($id) |
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); |
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} |
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private function addBulkData($action, $id, array $body = null) |
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{ |
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$this->currentBulk['body'][] = [ |
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$action => [ |
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'_index' => $this->index, |
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'_type' => $this->type, |
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'_id' => $id, |
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] |
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]; |
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if (null !== $body) { |
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$this->currentBulk['body'][] = $body; |
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} |
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} |
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private function incrementBulk() |
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{ |
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if ($this->shouldFlushBulk()) { |
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$this->flushBulk(); |
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} |
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$this->currentBulkSize++; |
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} |
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private function shouldFlushBulk() |
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{ |
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return $this->currentBulkSize >= $this->bulkSize |
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&& $this->hasBulk() |
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; |
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} |
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private function hasBulk() |
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{ |
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return $this->currentBulkSize > 0 |
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; |
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} |
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private function flushBulk() |
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{ |
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$this->client->bulk($this->currentBulk); |
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$this->currentBulkSize = 0; |
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$this->currentBulk = ['body' => []]; |
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} |
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/** |
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* Delete document |
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* |
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* @param string $id |
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*/ |
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public function delete($id) |
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{ |
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$this->addBulkAction('delete', $id); |
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} |
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/** |
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* Create a document |
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* |
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* @param string $id |
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* @param array $body |
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*/ |
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public function create($id, array $body) |
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{ |
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$this->addBulkAction('create', $id, $body); |
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} |
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/** |
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* Update a document |
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* |
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* @param string $id |
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* @param array $body |
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*/ |
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public function update($id, array $body) |
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{ |
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$this->addBulkAction('update', $id, ['doc' => $body]); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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1 |
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public function count() |
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{ |
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return null; |
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} |
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/** |
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* Change bulk size |
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* @param int $bulkSize |
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* |
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* @return self |
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*/ |
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public function changeBulkSize($bulkSize = self::DEFAULT_BULK_SIZE) |
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{ |
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$this->bulkSize = $bulkSize; |
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return $this; |
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} |
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} |
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gbprod /
elastica-provider-bundle
