Send every imported item to the queue

Instead of queing real Entry to process, we queue all the item to import from Pocket in a raw format.
Then, the worker retrieve that information, find / create the entry and save it.

src/Wallabag/ImportBundle/Consumer/AMPQ/PocketConsumer.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace Wallabag\ImportBundle\Consumer\AMPQ;
+
+use Doctrine\ORM\EntityManager;
+use OldSound\RabbitMqBundle\RabbitMq\ConsumerInterface;
+use PhpAmqpLib\Message\AMQPMessage;
+use Wallabag\ImportBundle\Import\PocketImport;
+use Wallabag\UserBundle\Repository\UserRepository;
+use Psr\Log\LoggerInterface;
+use Psr\Log\NullLogger;
+
+class PocketConsumer implements ConsumerInterface
+{
+    private $em;
+    private $userRepository;
+    private $pocketImport;
+    private $logger;
+
+    public function __construct(EntityManager $em, UserRepository $userRepository, PocketImport $pocketImport, LoggerInterface $logger = null)
+    {
+        $this->em = $em;
+        $this->userRepository = $userRepository;
+        $this->pocketImport = $pocketImport;
+        $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;
+        }
+
+        $this->pocketImport->setUser($user);
+
+        $entry = $this->pocketImport->parseEntry($storedEntry);
+
+        if (null === $entry) {
+            $this->logger->warning('Unable to parse entry', ['entry' => $storedEntry]);
+
+            return;
+        }
+
+        try {
+            $this->em->flush();
+            $this->em->clear($entry);
+        } catch (\Exception $e) {
+            $this->logger->warning('Unable to save entry', ['entry' => $storedEntry, 'exception' => $e]);
+
+            return;
+        }
+    }
+}