wikimedia/mediawiki-extensions-Wikibase

<?php declare( strict_types=1 );

namespace Wikibase\Repo\RestApi\Application\Serialization;

use Wikibase\DataModel\Term\Term;
use Wikibase\DataModel\Term\TermList;
use Wikibase\Repo\RestApi\Application\Serialization\Exceptions\EmptyLabelException;
use Wikibase\Repo\RestApi\Application\Serialization\Exceptions\InvalidLabelException;

/**
 * @license GPL-2.0-or-later
 */
class LabelsDeserializer {

    /**
     * @throws InvalidLabelException
     * @throws EmptyLabelException
     */
    public function deserialize( array $serialization ): TermList {
        $terms = [];
        foreach ( $serialization as $language => $text ) {
            // casting to string required - while json keys are always strings, php converts numeric keys to integers
            $language = (string)$language;

            if ( !is_string( $text ) ) {
                throw new InvalidLabelException( $language, $text );
            }

            $trimmedText = trim( $text );
            if ( $trimmedText === '' ) {
                throw new EmptyLabelException( $language, '' );
            }

            $terms[] = new Term( $language, $trimmedText );
        }

        return new TermList( $terms );
    }

}