Scalr\System\Zmq\Cron\Task\CloudPoller::enqueue PHP Method

    public function enqueue()
    {
        $queue = new ArrayObject([]);
        $db = \Scalr::getDb();
        $replicaCloudPlatforms = $this->getReplicaTypes('type', '[\\w]+');
        $replicaAccounts = $this->getReplicaAccounts();
        $rs = $db->Execute("\n            SELECT f.id, f.clientid AS account_id, s.platform\n            FROM farms f\n            JOIN clients c ON c.id = f.clientid\n            JOIN client_environments ce ON ce.id = f.env_id\n            JOIN servers s ON s.farm_id = f.id\n            LEFT JOIN client_environment_properties cep ON cep.env_id = f.env_id AND cep.name = CONCAT_WS('.', s.platform, ?)\n            WHERE c.status = ? AND ce.status = ? AND (cep.value IS NULL OR cep.value = 0)\n            GROUP BY f.id, s.platform\n        ", [CloudPlatformSuspensionInfo::NAME_SUSPENDED, Scalr_Account::STATUS_ACTIVE, Scalr_Environment::STATUS_ACTIVE]);
        while ($row = $rs->FetchRow()) {
            $obj = new stdClass();
            $obj->farmId = $row['id'];
            $obj->platform = $row['platform'];
            //Adjusts object with custom routing address.
            //It determines which of the workers pool should handle the task.
            $obj->address = $this->name . '.' . (!empty($replicaCloudPlatforms) ? in_array($row['platform'], $replicaCloudPlatforms) ? $row['platform'] : 'all' : 'all') . '.' . (!empty($replicaAccounts) ? in_array($row['account_id'], $replicaAccounts) ? $row['account_id'] : 'all' : 'all');
            $queue->append($obj);
        }
        if ($cnt = count($queue)) {
            $this->getLogger()->info("%d farm%s found.", $cnt, $cnt == 1 ? '' : 's');
        }
        return $queue;
    }