wikimedia/mediawiki-extensions-Wikibase

<?php

namespace Wikibase\DataModel\Services\Lookup;

use Exception;
use Wikibase\DataModel\Entity\EntityId;
use Wikibase\DataModel\Entity\PropertyId;

/**
 * @since 3.10
 *
 * @license GPL-2.0-or-later
 * @author Marius Hoch
 */
class MaxReferenceDepthExhaustedException extends ReferencedEntityIdLookupException {

    /**
     * @var int
     */
    private $maxDepth;

    /**
     * @param EntityId $fromId
     * @param PropertyId $propertyId
     * @param EntityId[] $toIds
     * @param int $maxDepth
     * @param string|null $message
     * @param Exception|null $previous
     */
    public function __construct(
        EntityId $fromId,
        PropertyId $propertyId,
        array $toIds,
        $maxDepth,
        $message = null,
        Exception $previous = null
    ) {
        $this->maxDepth = $maxDepth;
        $message = $message ?: 'Referenced entity id lookup failed: Maximum depth of ' . $maxDepth . ' exhausted.';

        parent::__construct( $fromId, $propertyId, $toIds, $message, $previous );
    }

    /**
     * @return int
     */
    public function getMaxDepth() {
        return $this->maxDepth;
    }

}