custom laravel validation rule

<?php

namespace App\Rules\Order;

use App\Http\Requests\Request;
use Illuminate\Contracts\Validation\Rule;
use Exception;

class Store implements Rule
{
    protected $request;

    protected $message = '';

    /**
     * Store constructor.
     * @param Request $request
     */
    public function __construct(Request $request)
    {
        $this->request = $request;
    }

    /**
     * @param string $attribute
     * @param mixed $value
     * @return bool
     * @throws Exception
     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
     */
    public function passes($attribute, $value)
    {
        $address = $this->request->input('address', false);

        $shippingMethod = $this->request->input('shipping_method', false);

        if (getShippingMethodInstance($shippingMethod)->isAddressRequired() && !$address &&  empty($value)) {
            $this->message = __('order.address', ['field' => $attribute]);
            return false;
        }

        return true;
    }

    /**
     * Get the validation error message.
     *
     * @return string
     */
    public function message()
    {
        return $this->message;
    }
}