protected function send($content)
	{
		$streamOptions = array(
			'http' => array(
				'method'  => 'POST',
				'header'  => 'Content-Type: application/json',
				'content' => $content,
			)
		);

		$context = stream_context_create($streamOptions);
		$result = @file_get_contents($this->getServerUrl(), false, $context);

		if ($result === false) {
			throw new Exception('Unable to connect to server');
		}

		return $result;
	}