AlgorithmFactory.php

Go to the documentation of this file.

<?php
namespace Magento\Catalog\Model\Layer\Filter\Dynamic;

use Magento\Framework\App\Config\ScopeConfigInterface;
use Magento\Framework\Exception\LocalizedException;
use Magento\Framework\ObjectManagerInterface;
use Magento\Store\Model\ScopeInterface;

class AlgorithmFactory
{
    const XML_PATH_RANGE_CALCULATION = 'catalog/layered_navigation/price_range_calculation';

    const RANGE_CALCULATION_AUTO = 'auto';
    const RANGE_CALCULATION_IMPROVED = 'improved';
    const RANGE_CALCULATION_MANUAL = 'manual';

    protected $objectManager;

    private $scopeConfig;

    private $algorithms;

    public function __construct(
        ObjectManagerInterface $objectManager,
        ScopeConfigInterface $scopeConfig,
        array $algorithms
    ) {
        $this->objectManager = $objectManager;
        $this->scopeConfig = $scopeConfig;
        $this->algorithms = $algorithms;
    }

    public function create(array $data = [])
    {
        $calculationType = $this->scopeConfig->getValue(
            self::XML_PATH_RANGE_CALCULATION,
            ScopeInterface::SCOPE_STORE
        );

        if (!isset($this->algorithms[$calculationType])) {
            throw new LocalizedException(__("The %1 value wasn't found in the algorithms.", $calculationType));
        }

        $className = $this->algorithms[$calculationType];
        $model = $this->objectManager->create($className, $data);

        if (!$model instanceof AlgorithmInterface) {
            throw new LocalizedException(
                __('%1 doesn\'t extend \Magento\Catalog\Model\Layer\Filter\Dynamic\AlgorithmInterface', $className)
            );
        }

        return $model;
    }
}