wikimedia/mediawiki-extensions-Wikibase

<?php

namespace Wikibase\InternalSerialization\Deserializers;

use Deserializers\Deserializer;
use Deserializers\Exceptions\DeserializationException;
use InvalidArgumentException;
use Wikibase\DataModel\Entity\EntityId;
use Wikibase\DataModel\Entity\EntityIdParser;
use Wikibase\DataModel\Entity\EntityIdParsingException;
use Wikibase\DataModel\LegacyIdInterpreter;

/**
 * @license GPL-2.0-or-later
 * @author Jeroen De Dauw < jeroendedauw@gmail.com >
 */
class LegacyEntityIdDeserializer implements Deserializer {

    /**
     * @var EntityIdParser
     */
    private $idParser;

    public function __construct( EntityIdParser $idParser ) {
        $this->idParser = $idParser;
    }

    /**
     * @param string|array $serialization
     *
     * @return EntityId
     * @throws DeserializationException
     */
    public function deserialize( $serialization ) {
        if ( is_string( $serialization ) ) {
            return $this->getParsedId( $serialization );
        } elseif ( $this->isLegacyFormat( $serialization ) ) {
            return $this->getIdFromLegacyFormat( $serialization );
        } else {
            throw new DeserializationException( 'Entity id format not recognized' );
        }
    }

    private function isLegacyFormat( $serialization ) {
        return is_array( $serialization ) && count( $serialization ) == 2
            && array_key_exists( 0, $serialization ) && array_key_exists( 1, $serialization );
    }

    private function getParsedId( $serialization ) {
        try {
            return $this->idParser->parse( $serialization );
        } catch ( EntityIdParsingException $ex ) {
            throw new DeserializationException( $ex->getMessage(), $ex );
        }
    }

    private function getIdFromLegacyFormat( array $serialization ) {
        try {
            return LegacyIdInterpreter::newIdFromTypeAndNumber( $serialization[0], $serialization[1] );
        } catch ( InvalidArgumentException $ex ) {
            throw new DeserializationException( $ex->getMessage(), $ex );
        }
    }

}