Resources/Elastic/Transport/NodePool/Selector/SelectorTrait.php

<?php
/**
 * Elastic Transport
 *
 * @link      https://github.com/elastic/elastic-transport-php
 * @copyright Copyright (c) Elasticsearch B.V (https://www.elastic.co)
 * @license   https://opensource.org/licenses/MIT MIT License
 *
 * Licensed to Elasticsearch B.V under one or more agreements.
 * Elasticsearch B.V licenses this file to you under the MIT License.
 * See the LICENSE file in the project root for more information.
 */
declare(strict_types=1);

namespace Elastic\Transport\NodePool\Selector;

use Elastic\Transport\NodePool\Node;
use Elastic\Transport\Exception\InvalidArrayException;

trait SelectorTrait
{
    protected array $nodes = [];

    public function setNodes(array $nodes): void
    {
        foreach ($nodes as $node) {
            if (!$node instanceof Node) {
                throw new InvalidArrayException(sprintf(
                    "The nodes array must contain only %s objects",
                    Node::class
                ));
            }
        }
        $this->nodes = $nodes;
    }

    public function getNodes(): array
    {
        return $this->nodes;
    }
}