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<?php |
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namespace Wikibase\DataModel\Snak; |
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use InvalidArgumentException; |
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use Wikibase\DataModel\Entity\EntityId; |
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use Wikibase\DataModel\Entity\Property; |
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use Wikibase\DataModel\Entity\PropertyId; |
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use Wikibase\DataModel\Facet\FacetContainer; |
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use Wikibase\DataModel\Facet\NoSuchFacetException; |
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use Wikibase\DataModel\Internal\FacetManager; |
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/** |
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* Base class for snaks. |
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* See https://www.mediawiki.org/wiki/Wikibase/DataModel#Snaks |
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* |
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* @since 0.1 |
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* |
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* @licence GNU GPL v2+ |
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* @author Jeroen De Dauw < [email protected] > |
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* @author Daniel Kinzler |
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*/ |
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abstract class SnakObject implements Snak, FacetContainer { |
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/** |
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* @var FacetManager|null |
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*/ |
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private $facetManager = null; |
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/** |
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* @since 0.1 |
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* |
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* @var PropertyId |
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*/ |
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protected $propertyId; |
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/** |
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* Support for passing in an EntityId instance that is not a PropertyId instance has |
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* been deprecated since 0.5. |
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* |
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* @since 0.1 |
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* |
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* @param PropertyId|EntityId|int $propertyId |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function __construct( $propertyId ) { |
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if ( is_int( $propertyId ) ) { |
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$propertyId = PropertyId::newFromNumber( $propertyId ); |
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} |
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if ( !( $propertyId instanceof EntityId ) ) { |
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throw new InvalidArgumentException( '$propertyId must be an instance of EntityId' ); |
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} |
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if ( $propertyId->getEntityType() !== Property::ENTITY_TYPE ) { |
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throw new InvalidArgumentException( '$propertyId must have an entityType of ' . Property::ENTITY_TYPE ); |
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} |
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if ( !( $propertyId instanceof PropertyId ) ) { |
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$propertyId = new PropertyId( $propertyId->getSerialization() ); |
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} |
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$this->propertyId = $propertyId; |
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} |
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/** |
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* @see PropertyIdProvider::getPropertyId |
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* |
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* @since 0.1 |
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* |
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* @return PropertyId |
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*/ |
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public function getPropertyId() { |
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return $this->propertyId; |
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} |
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/** |
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* @see Hashable::getHash |
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* |
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* @return string |
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*/ |
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public function getHash() { |
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return sha1( serialize( $this ) ); |
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} |
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/** |
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* @see Comparable::equals |
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* |
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* @since 0.3 |
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* |
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* @param mixed $target |
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* |
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* @return bool |
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*/ |
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public function equals( $target ) { |
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if ( $this === $target ) { |
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return true; |
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} |
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return is_object( $target ) |
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&& get_called_class() === get_class( $target ) |
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&& $this->getHash() === $target->getHash(); |
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} |
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/** |
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* @see Serializable::serialize |
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* |
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* @since 0.1 |
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* |
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* @return string |
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*/ |
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public function serialize() { |
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return serialize( $this->propertyId->getNumericId() ); |
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} |
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/** |
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* @see Serializable::unserialize |
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* |
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* @since 0.1 |
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* |
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* @param string $serialized |
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*/ |
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public function unserialize( $serialized ) { |
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$this->propertyId = PropertyId::newFromNumber( unserialize( $serialized ) ); |
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} |
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/** |
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* @param string $name |
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* |
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* @return boolean |
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*/ |
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public function hasFacet( $name ) { |
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return $this->facetManager && $this->facetManager->hasFacet( $name ); |
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} |
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/** |
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* @return string[] |
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*/ |
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public function listFacets() { |
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return $this->facetManager ? $this->facetManager->listFacets() : array(); |
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} |
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/** |
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* @param string $name |
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* @param string|null $type The desired type |
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* |
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* @return object |
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*/ |
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public function getFacet( $name, $type = null ) { |
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if ( !$this->facetManager ) { |
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throw new NoSuchFacetException( $name ); |
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} |
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return $this->facetManager->getFacet( $name, $type ); |
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} |
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/** |
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* @param string $name |
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* @param object $facetObject |
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*/ |
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public function addFacet( $name, $facetObject ) { |
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if ( !$this->facetManager ) { |
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$this->facetManager = new FacetManager(); |
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} |
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$this->facetManager->addFacet( $name, $facetObject ); |
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} |
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} |
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wmde /
WikibaseDataModel
