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<?php declare(strict_types=1); |
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/** |
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* This file is part of the daikon-cqrs/elasticsearch7-adapter project. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Daikon\Elasticsearch7\Storage; |
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use Daikon\Dbal\Exception\DbalException; |
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use Daikon\Elasticsearch7\Connector\Elasticsearch7Connector; |
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use Daikon\Interop\Assert; |
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use Daikon\Metadata\Metadata; |
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use Daikon\ReadModel\Projection\ProjectionMap; |
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use Daikon\ReadModel\Query\QueryInterface; |
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use Daikon\ReadModel\Storage\ScrollAdapterInterface; |
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use Daikon\ReadModel\Storage\SearchAdapterInterface; |
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use Daikon\ReadModel\Storage\StorageAdapterInterface; |
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use Daikon\ReadModel\Storage\StorageResultInterface; |
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use Elasticsearch\Common\Exceptions\Missing404Exception; |
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final class Elasticsearch7StorageAdapter implements |
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StorageAdapterInterface, |
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SearchAdapterInterface, |
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ScrollAdapterInterface |
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{ |
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private Elasticsearch7Connector $connector; |
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private array $settings; |
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public function __construct(Elasticsearch7Connector $connector, array $settings = []) |
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{ |
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$this->connector = $connector; |
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$this->settings = $settings; |
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} |
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public function read(string $identifier): StorageResultInterface |
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{ |
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$projection = []; |
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try { |
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$document = $this->connector->getConnection()->get( |
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array_merge($this->settings['read'] ?? [], [ |
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'index' => $this->getIndex(), |
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'id' => $identifier |
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]) |
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); |
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$projectionClass = $document['_source']['@type']; |
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$projection = [$document['_id'] => $projectionClass::fromNative($document['_source'])]; |
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} catch (Missing404Exception $error) { |
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// just return an empty result |
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} |
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return new Elasticsearch7StorageResult( |
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new ProjectionMap($projection) |
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); |
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} |
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public function write(string $identifier, array $data): bool |
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{ |
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$document = array_merge($this->settings['write'] ?? [], [ |
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'index' => $this->getIndex(), |
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'id' => $identifier, |
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'body' => $data |
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]); |
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$this->connector->getConnection()->index($document); |
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return true; |
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} |
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public function delete(string $identifier): bool |
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{ |
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throw new DbalException('Not implemented.'); |
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} |
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public function search(QueryInterface $query, int $from = null, int $size = null): StorageResultInterface |
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{ |
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$query = array_merge($this->settings['search'] ?? [], [ |
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'index' => $this->getIndex(), |
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'from' => $from, |
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'size' => $size, |
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'body' => $query->toNative(), |
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'rest_total_hits_as_int' => true |
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]); |
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$results = $this->connector->getConnection()->search($query); |
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return new Elasticsearch7StorageResult( |
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$this->makeProjectionMap($results['hits']['hits']), |
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Metadata::fromNative(['total' => $results['hits']['total']]) |
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); |
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} |
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public function scrollStart(QueryInterface $query, int $size = null, $cursor = null): StorageResultInterface |
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{ |
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$query = array_merge($this->settings['search'] ?? [], [ |
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'index' => $this->getIndex(), |
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'size' => $size, |
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'body' => $query->toNative(), |
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'scroll' => $this->settings['scroll_timeout'] ?? '1m', |
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'sort' => ['_doc'], |
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'rest_total_hits_as_int' => true |
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]); |
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$results = $this->connector->getConnection()->search($query); |
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return new Elasticsearch7StorageResult( |
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$this->makeProjectionMap($results['hits']['hits']), |
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Metadata::fromNative([ |
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'total' => $results['hits']['total'], |
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'cursor' => $results['_scroll_id'] |
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]) |
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); |
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} |
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public function scrollNext($cursor, int $size = null): StorageResultInterface |
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{ |
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Assert::that($cursor, 'Invalid cursor.')->string()->notEmpty(); |
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$results = $this->connector->getConnection()->scroll([ |
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'scroll_id' => $cursor, |
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'scroll' => $this->settings['scroll_timeout'] ?? '1m', |
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'rest_total_hits_as_int' => true |
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]); |
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return new Elasticsearch7StorageResult( |
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$this->makeProjectionMap($results['hits']['hits']), |
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Metadata::fromNative([ |
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'total' => $results['hits']['total'], |
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'cursor' => $results['_scroll_id'] |
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]) |
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); |
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} |
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public function scrollEnd($cursor): void |
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{ |
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Assert::that($cursor, 'Invalid cursor.')->string()->notEmpty(); |
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$this->connector->getConnection()->clearScroll(['scroll_id' => $cursor]); |
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} |
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private function getIndex(): string |
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{ |
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return $this->settings['index'] ?? $this->connector->getSettings()['index']; |
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} |
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private function makeProjectionMap(array $documents): ProjectionMap |
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{ |
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$projections = []; |
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foreach ($documents as $document) { |
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$projectionClass = $document['_source']['@type']; |
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$projections[$document['_id']] = $projectionClass::fromNative($document['_source']); |
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} |
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return new ProjectionMap($projections); |
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} |
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} |
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daikon-cqrs /
elasticsearch7-adapter
