extractValue(RequestInterface $request)
outputValue($format=\Magento\Eav\Model\AttributeDataFactory::OUTPUT_FORMAT_TEXT)
__construct(\Magento\Framework\Stdlib\DateTime\TimezoneInterface $localeDate, \Psr\Log\LoggerInterface $logger, \Magento\Framework\Locale\ResolverInterface $localeResolver, \Magento\Framework\Stdlib\StringUtils $stringHelper)