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<?php |
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namespace Wikibase\InternalSerialization\Deserializers; |
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use Deserializers\Deserializer; |
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use Deserializers\DispatchableDeserializer; |
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use Deserializers\Exceptions\DeserializationException; |
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use Deserializers\Exceptions\InvalidAttributeException; |
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use Deserializers\Exceptions\MissingAttributeException; |
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use Wikibase\DataModel\Entity\Property; |
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use Wikibase\DataModel\Entity\PropertyId; |
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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 Bene* < [email protected] > |
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*/ |
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class LegacyPropertyDeserializer implements DispatchableDeserializer { |
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/** |
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* @var Deserializer |
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*/ |
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private $idDeserializer; |
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/** |
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* @var Deserializer |
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*/ |
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private $fingerprintDeserializer; |
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public function __construct( Deserializer $idDeserializer, Deserializer $fingerprintDeserializer ) { |
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$this->idDeserializer = $idDeserializer; |
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$this->fingerprintDeserializer = $fingerprintDeserializer; |
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} |
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/** |
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* @param array $serialization |
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* |
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* @return Property |
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* @throws DeserializationException |
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*/ |
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public function deserialize( $serialization ) { |
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if ( !is_array( $serialization ) ) { |
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throw new DeserializationException( 'Item serialization should be an array' ); |
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} |
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return new Property( |
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$this->getPropertyId( $serialization ), |
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$this->fingerprintDeserializer->deserialize( $serialization ), |
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$this->getDataTypeId( $serialization ) |
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); |
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} |
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/** |
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* @param array $serialization |
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* |
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* @return PropertyId|null |
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* |
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* @throws InvalidAttributeException |
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*/ |
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private function getPropertyId( array $serialization ) { |
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if ( array_key_exists( 'entity', $serialization ) ) { |
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$id = $this->idDeserializer->deserialize( $serialization['entity'] ); |
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if ( !( $id instanceof PropertyId ) ) { |
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throw new InvalidAttributeException( |
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'entity', |
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$serialization['entity'], |
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'Properties should have a property id' |
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); |
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} |
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return $id; |
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} |
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return null; |
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} |
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/** |
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* @param array $serialization |
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* |
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* @return string |
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* |
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* @throws MissingAttributeException |
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* @throws InvalidAttributeException |
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*/ |
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private function getDataTypeId( array $serialization ) { |
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if ( !array_key_exists( 'datatype', $serialization ) ) { |
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throw new MissingAttributeException( 'datatype' ); |
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} |
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if ( !is_string( $serialization['datatype'] ) ) { |
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throw new InvalidAttributeException( |
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'datatype', |
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$serialization['datatype'], |
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'The datatype key should point to a string' |
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); |
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} |
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return $serialization['datatype']; |
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} |
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/** |
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* @see DispatchableDeserializer::isDeserializerFor |
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* |
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* @since 2.2 |
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* |
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* @param mixed $serialization |
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* |
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* @return bool |
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*/ |
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public function isDeserializerFor( $serialization ) { |
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return is_array( $serialization ) && array_key_exists( 'datatype', $serialization ); |
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} |
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} |
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