/**
* Get an endpoint for a specific region from a service description
*
* @param ServiceDescriptionInterface $description Service description
* @param string $region Region of the endpoint
* @param string $scheme URL scheme
*
* @return string
* @throws InvalidArgumentException
*/
public static function getEndpoint(ServiceDescriptionInterface $description, $region, $scheme)
{
$service = $description->getData('serviceFullName');
// Lookup the region in the service description
if (!($regions = $description->getData('regions'))) {
throw new InvalidArgumentException("No regions found in the {$service} description");
}
// Ensure that the region exists for the service
if (!isset($regions[$region])) {
throw new InvalidArgumentException("{$region} is not a valid region for {$service}");
}
// Ensure that the scheme is valid
if ($regions[$region][$scheme] == false) {
throw new InvalidArgumentException("{$scheme} is not a valid URI scheme for {$service} in {$region}");
}
return $scheme . '://' . $regions[$region]['hostname'];
}
/**
* Get an endpoint for a specific region from a service description
* @deprecated This function will no longer be updated to work with new regions.
*/
public static function getEndpoint(ServiceDescriptionInterface $description, $region, $scheme)
{
try {
$service = $description->getData('endpointPrefix');
$provider = RulesEndpointProvider::fromDefaults();
$result = $provider(array('service' => $service, 'region' => $region, 'scheme' => $scheme));
return $result['endpoint'];
} catch (\InvalidArgumentException $e) {
throw new InvalidArgumentException($e->getMessage(), 0, $e);
}
}