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<?php |
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namespace Wikibase\QueryEngine\Importer; |
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use Exception; |
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use Iterator; |
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use Wikibase\DataModel\Entity\Entity; |
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use Wikibase\DataModel\Entity\EntityDocument; |
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use Wikibase\QueryEngine\QueryStoreWriter; |
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/** |
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* @since 0.3 |
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* @licence GNU GPL v2+ |
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* @author Jeroen De Dauw < [email protected] > |
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*/ |
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class EntitiesImporter { |
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private $storeWriter; |
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private $entityIterator; |
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private $reporter; |
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private $shouldStop = false; |
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/** |
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* @param QueryStoreWriter $storeWriter |
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* @param Iterator $entityIterator Each value should be of type Entity |
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* @param ImportReporter|null $reporter |
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*/ |
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public function __construct( QueryStoreWriter $storeWriter, Iterator $entityIterator, ImportReporter $reporter = null ) { |
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$this->storeWriter = $storeWriter; |
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$this->entityIterator = $entityIterator; |
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$this->reporter = $reporter === null ? new NullImportReporter() : $reporter; |
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} |
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public function run() { |
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$this->reporter->onImportStarted(); |
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foreach ( $this->entityIterator as $entity ) { |
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if ( function_exists( 'pcntl_signal_dispatch' ) ) { |
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pcntl_signal_dispatch(); |
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} |
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if ( $this->shouldStop ) { |
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$this->shouldStop = false; |
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$this->reporter->onImportAborted(); |
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return; |
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} |
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$this->importEntity( $entity ); |
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} |
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$this->reporter->onImportCompleted(); |
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} |
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private function importEntity( EntityDocument $entity ) { |
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$this->reporter->onEntityInsertStarted( $entity ); |
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$wasSuccessful = false; |
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try { |
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$this->storeWriter->updateEntity( $entity ); |
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$wasSuccessful = true; |
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} |
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catch ( Exception $ex ) { |
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$this->reporter->onEntityInsertFailed( $entity, $ex ); |
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} |
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if ( $wasSuccessful ) { |
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$this->reporter->onEntityInsertSucceeded( $entity ); |
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} |
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} |
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public function stop() { |
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$this->shouldStop = true; |
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} |
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} |
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