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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 Wikibase\DataModel\Statement\Statement; |
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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 Thiemo Mättig |
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*/ |
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class StatementDeserializer implements Deserializer { |
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/** |
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* @var DispatchableDeserializer |
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*/ |
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private $legacyDeserializer; |
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/** |
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* @var DispatchableDeserializer |
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*/ |
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private $currentDeserializer; |
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public function __construct( |
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DispatchableDeserializer $legacyDeserializer, |
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DispatchableDeserializer $currentDeserializer |
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) { |
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$this->legacyDeserializer = $legacyDeserializer; |
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$this->currentDeserializer = $currentDeserializer; |
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} |
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/** |
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* @param array $serialization |
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* |
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* @return Statement |
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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( 'Claim serialization must be an array' ); |
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} |
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if ( $this->currentDeserializer->isDeserializerFor( $serialization ) ) { |
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return $this->currentDeserializer->deserialize( $serialization ); |
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} elseif ( $this->legacyDeserializer->isDeserializerFor( $serialization ) ) { |
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return $this->legacyDeserializer->deserialize( $serialization ); |
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} else { |
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return $this->fromUnknownSerialization( $serialization ); |
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} |
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} |
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private function fromUnknownSerialization( array $serialization ) { |
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try { |
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return $this->currentDeserializer->deserialize( $serialization ); |
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} catch ( DeserializationException $currentEx ) { |
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try { |
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return $this->legacyDeserializer->deserialize( $serialization ); |
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} catch ( DeserializationException $legacyEx ) { |
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throw new DeserializationException( |
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'The provided claim serialization is neither legacy (' |
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. $legacyEx->getMessage() . ') nor current (' |
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. $currentEx->getMessage() . ')' |
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); |
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} |
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} |
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} |
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} |
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