wikimedia/mediawiki-extensions-Wikibase

<?php

declare( strict_types = 1 );

namespace Wikibase\DataModel\Serializers;

use Serializers\Exceptions\SerializationException;
use Serializers\Exceptions\UnsupportedObjectException;
use Serializers\Serializer;
use Wikibase\DataModel\Term\TermList;

/**
 * Package private
 *
 * @license GPL-2.0-or-later
 * @author Addshore
 */
class TermListSerializer extends MapSerializer implements Serializer {

    private TermSerializer $termSerializer;

    public function __construct( TermSerializer $termSerializer, bool $useObjectsForEmptyMaps ) {
        parent::__construct( $useObjectsForEmptyMaps );
        $this->termSerializer = $termSerializer;
    }

    /**
     * @see Serializer::serialize
     *
     * @param TermList $object
     *
     * @return array[]
     * @throws SerializationException
     */
    public function serialize( $object ) {
        $this->assertIsSerializerFor( $object );
        return $this->serializeMap( $this->generateSerializedArrayRepresentation( $object ) );
    }

    private function assertIsSerializerFor( $object ) {
        if ( !( $object instanceof TermList ) ) {
            throw new UnsupportedObjectException(
                $object,
                'TermListSerializer can only serialize TermList objects'
            );
        }
    }

    protected function generateSerializedArrayRepresentation( TermList $termList ): array {
        $serialization = [];

        foreach ( $termList->getIterator() as $term ) {
            $serialization[$term->getLanguageCode()] = $this->termSerializer->serialize( $term );
        }

        return $serialization;
    }
}