/**
* Checks for errors responses from Amazon
*
* @param Response $response the response object to
* check.
*
* @return void
*
* @throws Exception\RuntimeException if one or more errors are
* returned from Amazon.
*/
private function _checkForErrors(Response $response)
{
$xpath = new DOMXPath($response->getDocument());
$list = $xpath->query('//Error');
if ($list->length > 0) {
$node = $list->item(0);
$code = $xpath->evaluate('string(Code/text())', $node);
$message = $xpath->evaluate('string(Message/text())', $node);
throw new Exception\RuntimeException($message, (double) $code);
}
}
