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<?php |
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namespace TreeHouse\IoBundle\Bridge\WorkerBundle\Executor; |
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use Doctrine\Common\Persistence\ManagerRegistry; |
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use Psr\Log\LoggerInterface; |
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use Symfony\Component\OptionsResolver\Exception\InvalidArgumentException; |
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use Symfony\Component\OptionsResolver\Options; |
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use Symfony\Component\OptionsResolver\OptionsResolver; |
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use TreeHouse\IoBundle\Entity\Scraper as ScraperEntity; |
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use TreeHouse\IoBundle\Scrape\Exception\CrawlException; |
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use TreeHouse\IoBundle\Scrape\Exception\RateLimitException; |
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use TreeHouse\IoBundle\Scrape\ScraperFactory; |
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use TreeHouse\WorkerBundle\Exception\RescheduleException; |
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use TreeHouse\WorkerBundle\Executor\AbstractExecutor; |
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class ScrapeUrlExecutor extends AbstractExecutor |
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{ |
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const NAME = 'scrape.url'; |
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/** |
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* @var ManagerRegistry |
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*/ |
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protected $doctrine; |
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/** |
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* @var ScraperFactory |
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*/ |
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protected $factory; |
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/** |
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* @var LoggerInterface |
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*/ |
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protected $logger; |
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/** |
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* @param ManagerRegistry $doctrine |
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* @param ScraperFactory $factory |
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* @param LoggerInterface $logger |
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*/ |
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public function __construct(ManagerRegistry $doctrine, ScraperFactory $factory, LoggerInterface $logger) |
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{ |
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$this->doctrine = $doctrine; |
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$this->factory = $factory; |
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$this->logger = $logger; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getName() |
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{ |
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return self::NAME; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function configurePayload(OptionsResolver $resolver) |
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{ |
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$resolver->setRequired(0); |
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$resolver->setAllowedTypes(0, 'numeric'); |
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$resolver->setNormalizer(0, function (Options $options, $value) { |
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if (null === $scraper = $this->findScraper($value)) { |
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throw new InvalidArgumentException(sprintf('Could not find scraper with id %d', $value)); |
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} |
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return $scraper; |
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}); |
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$resolver->setRequired(1); |
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$resolver->setAllowedTypes(1, 'string'); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function execute(array $payload) |
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{ |
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/** @var ScraperEntity $entity */ |
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/** @var string $url */ |
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list($entity, $url) = $payload; |
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$scraper = $this->factory->createScraper($entity); |
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$scraper->setAsync(true); |
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try { |
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$scraper->scrape($entity, $url); |
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return true; |
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} catch (RateLimitException $e) { |
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$re = new RescheduleException(); |
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if ($date = $e->getRetryDate()) { |
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$re->setRescheduleDate($date); |
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} |
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throw $re; |
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} catch (CrawlException $e) { |
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$this->logger->error($e->getMessage(), ['url' => $e->getUrl()]); |
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return false; |
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} |
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} |
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/** |
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* @param int $scraperId |
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* |
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* @return ScraperEntity |
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*/ |
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protected function findScraper($scraperId) |
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{ |
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return $this->doctrine->getRepository('TreeHouseIoBundle:Scraper')->find($scraperId); |
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} |
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} |
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treehouselabs /
io-bundle
