public function getHttpAdapter()
    {
        if (null === $this->httpAdapter) {
            $this->httpAdapter = new Http\Client\Adapter\Curl();
            $this->httpAdapter->setOptions(array(
                'curloptions' => array(
                    CURLOPT_SSL_VERIFYPEER => false,
                ),
            ));
        }

        return $this->httpAdapter;
    }