[#1590] Add JSON import from wallabag v2

src/Wallabag/ImportBundle/Import/WallabagV2Import.php

@@ -0,0 +1,75 @@
+<?php
+
+namespace Wallabag\ImportBundle\Import;
+
+use Wallabag\CoreBundle\Entity\Entry;
+
+class WallabagV2Import extends WallabagV1Import implements ImportInterface
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function getName()
+    {
+        return 'wallabag v2';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getUrl()
+    {
+        return 'import_wallabag_v2';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getDescription()
+    {
+        return 'This importer will import all your wallabag v2 articles. On the export sidebar, click on "JSON". You will have a "Unread articles.json" file.';
+    }
+
+    /**
+     * @param $entries
+     */
+    protected function parseEntries($entries)
+    {
+        $i = 1;
+
+        foreach ($entries as $importedEntry) {
+            $existingEntry = $this->em
+                ->getRepository('WallabagCoreBundle:Entry')
+                ->findByUrlAndUserId($importedEntry['url'], $this->user->getId());
+
+            if (false !== $existingEntry) {
+                ++$this->skippedEntries;
+                continue;
+            }
+
+            // @see ContentProxy->updateEntry
+            $entry = new Entry($this->user);
+            $entry->setUrl($importedEntry['url']);
+            $entry->setTitle($importedEntry['title']);
+            $entry->setArchived($importedEntry['is_archived']);
+            $entry->setStarred($importedEntry['is_starred']);
+            $entry->setContent($importedEntry['content']);
+            $entry->setReadingTime($importedEntry['reading_time']);
+            $entry->setDomainName($importedEntry['domain_name']);
+            $entry->setMimetype($importedEntry['mimetype']);
+            $entry->setLanguage($importedEntry['language']);
+            $entry->setPreviewPicture($importedEntry['preview_picture']);
+
+            $this->em->persist($entry);
+            ++$this->importedEntries;
+
+            // flush every 20 entries
+            if (($i % 20) === 0) {
+                $this->em->flush();
+            }
+            ++$i;
+        }
+
+        $this->em->flush();
+    }
+}