Enable Redis async import

- using javibravo/simpleue
- internal config value are now `import_with_redis` & `import_with_rabbit` which are more clear
- if both option are enable rabbit will be choosen
- services imports related to async are now splitted into 2 files: `redis.yml` & `rabbit.yml`
-

src/Wallabag/ImportBundle/Consumer/AMPQEntryConsumer.php

@@ -0,0 +1,70 @@
+<?php
+
+namespace Wallabag\ImportBundle\Consumer;
+
+use Doctrine\ORM\EntityManager;
+use OldSound\RabbitMqBundle\RabbitMq\ConsumerInterface;
+use PhpAmqpLib\Message\AMQPMessage;
+use Wallabag\ImportBundle\Import\AbstractImport;
+use Wallabag\UserBundle\Repository\UserRepository;
+use Wallabag\CoreBundle\Entity\Entry;
+use Wallabag\CoreBundle\Entity\Tag;
+use Psr\Log\LoggerInterface;
+use Psr\Log\NullLogger;
+
+class AMPQEntryConsumer implements ConsumerInterface
+{
+    private $em;
+    private $userRepository;
+    private $import;
+    private $logger;
+
+    public function __construct(EntityManager $em, UserRepository $userRepository, AbstractImport $import, LoggerInterface $logger = null)
+    {
+        $this->em = $em;
+        $this->userRepository = $userRepository;
+        $this->import = $import;
+        $this->logger = $logger ?: new NullLogger();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function execute(AMQPMessage $msg)
+    {
+        $storedEntry = json_decode($msg->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;
+        }
+
+        $this->import->setUser($user);
+
+        $entry = $this->import->parseEntry($storedEntry);
+
+        if (null === $entry) {
+            $this->logger->warning('Unable to parse entry', ['entry' => $storedEntry]);
+
+            return;
+        }
+
+        try {
+            $this->em->flush();
+
+            // 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;
+        }
+
+        $this->logger->info('Content with url ('.$entry->getUrl().') imported !');
+    }
+}