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<?php
namespace Wallabag\ImportBundle\Consumer;
use Doctrine\ORM\EntityManager;
use Psr\Log\LoggerInterface;
use Psr\Log\NullLogger;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Wallabag\CoreBundle\Entity\Entry;
use Wallabag\CoreBundle\Entity\Tag;
use Wallabag\CoreBundle\Event\EntrySavedEvent;
use Wallabag\ImportBundle\Import\AbstractImport;
use Wallabag\UserBundle\Repository\UserRepository;
abstract class AbstractConsumer
{
protected $em;
protected $userRepository;
protected $import;
protected $eventDispatcher;
protected $logger;
public function __construct(EntityManager $em, UserRepository $userRepository, AbstractImport $import, EventDispatcherInterface $eventDispatcher, LoggerInterface $logger = null)
{
$this->em = $em;
$this->userRepository = $userRepository;
$this->import = $import;
$this->eventDispatcher = $eventDispatcher;
$this->logger = $logger ?: new NullLogger();
}
/**
* Handle a message and save it.
*
* @param string $body Message from the queue (in json)
*
* @return bool
*/
protected function handleMessage($body)
{
$storedEntry = json_decode($body, true);
$user = $this->userRepository->find($storedEntry['userId']);
// no user? Drop message
if (null === $user) {
$this->logger->warning('Unable to retrieve user', ['entry' => $storedEntry]);
// return true to skip message
return true;
}
$this->import->setUser($user);
$entry = $this->import->parseEntry($storedEntry);
if (null === $entry) {
$this->logger->warning('Entry already exists', ['entry' => $storedEntry]);
// return true to skip message
return true;
}
try {
$this->em->flush();
// entry saved, dispatch event about it!
$this->eventDispatcher->dispatch(EntrySavedEvent::NAME, new EntrySavedEvent($entry));
// clear only affected entities
$this->em->clear(Entry::class);
$this->em->clear(Tag::class);
} catch (\Exception $e) {
$this->logger->warning('Unable to save entry', ['entry' => $storedEntry, 'exception' => $e]);
return false;
}
$this->logger->info('Content with url imported! (' . $entry->getUrl() . ')');
return true;
}
}
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