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<?php |
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namespace Wikibase\DataModel\Services\Lookup; |
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use Wikibase\DataModel\Assert\RepositoryNameAssert; |
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use Wikibase\DataModel\Entity\EntityDocument; |
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use Wikibase\DataModel\Entity\EntityId; |
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use Wikimedia\Assert\Assert; |
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use Wikimedia\Assert\ParameterAssertionException; |
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/** |
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* Delegates lookup to the repository-specific EntityLookup |
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* based on the name of the repository an EntityId belongs to. |
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* This class does not strip repository prefixes of incoming |
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* entity IDs. |
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* |
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* @since 3.7 |
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* |
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* @license GPL-2.0+ |
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*/ |
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class DispatchingEntityLookup implements EntityLookup { |
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/** |
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* @var EntityLookup[] |
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*/ |
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private $lookups; |
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/** |
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* @since 3.7 |
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* |
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* @param EntityLookup[] $lookups associative array with repository names (strings) as keys |
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* and EntityLookup objects as values. |
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* |
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* @throws ParameterAssertionException |
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*/ |
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public function __construct( array $lookups ) { |
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Assert::parameter( |
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!empty( $lookups ), |
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'$lookups', |
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'must must not be empty' |
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); |
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Assert::parameterElementType( EntityLookup::class, $lookups, '$lookups' ); |
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RepositoryNameAssert::assertParameterKeysAreValidRepositoryNames( $lookups, '$lookups' ); |
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$this->lookups = $lookups; |
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} |
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/** |
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* @see EntityLookup::getEntity |
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* |
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* @since 3.7 |
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* |
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* @param EntityId $entityId |
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* |
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* @return null|EntityDocument |
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* @throws EntityLookupException |
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* @throws UnknownForeignRepositoryException |
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*/ |
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public function getEntity( EntityId $entityId ) { |
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$lookup = $this->getLookupForEntityId( $entityId ); |
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return $lookup->getEntity( $entityId ); |
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} |
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/** |
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* @see EntityLookup::hasEntity |
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* |
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* @since 3.7 |
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* |
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* @param EntityId $entityId |
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* |
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* @return bool |
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* @throws EntityLookupException |
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* @throws UnknownForeignRepositoryException |
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*/ |
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public function hasEntity( EntityId $entityId ) { |
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$lookup = $this->getLookupForEntityId( $entityId ); |
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return $lookup->hasEntity( $entityId ); |
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} |
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/** |
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* @param EntityId $entityId |
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* |
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* @return EntityLookup |
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* @throws UnknownForeignRepositoryException |
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*/ |
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private function getLookupForEntityId( EntityId $entityId ) { |
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$repo = $entityId->getRepositoryName(); |
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if ( !isset( $this->lookups[$repo] ) ) { |
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throw new UnknownForeignRepositoryException( $entityId->getRepositoryName() ); |
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} |
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return $this->lookups[$repo]; |
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} |
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} |
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wmde /
WikibaseDataModelServices
