Add cron logic

Cron/GenerateFile.php

@@ -0,0 +1,47 @@
+<?php
+namespace Magefox\GoogleShopping\Cron;
+
+use Psr\Log\LoggerInterface;
+use Magento\Framework\File\Csv;
+use Magento\Framework\App\Filesystem\DirectoryList;
+use Magento\Framework\Filesystem;
+use Magefox\GoogleShopping\Model\Xmlfeed;
+
+class GenerateFile
+{
+    protected $logger;
+
+    public function __construct(
+        LoggerInterface $logger,
+        Csv $csvProcessor,
+        DirectoryList $directoryList,
+        Filesystem $filesystem,
+        Xmlfeed $xmlFeed
+    ) {
+        $this->logger = $logger;
+        $this->filesystem = $filesystem;
+        $this->directoryList = $directoryList;
+        $this->csvProcessor = $csvProcessor;
+        $this->xmlFeed = $xmlFeed;
+    }
+
+   /**
+    * Sync all products assigned to 'axitech' source to PCRT
+    *
+    * @return void
+    */
+    public function execute()
+    {
+        try {
+            $fileDirectoryPath = $this->filesystem->getDirectoryWrite(
+                \Magento\Framework\App\Filesystem\DirectoryList::PUB
+            );
+            $fileName = 'googleshopping.xml';
+
+            $xmldata = $this->xmlFeed->getFeed();
+            $fileDirectoryPath->writeFile($fileName, $xmldata);
+        } catch (\Exception $e) {
+            $this->logger->error($e->getMessage());
+        }
+    }
+}