Rule
11 months ago
Ruleset
11 months ago
EndpointDefinitionProvider.php
11 months ago
EndpointProviderV2.php
11 months ago
EndpointV2Middleware.php
11 months ago
EndpointV2SerializerTrait.php
11 months ago
EndpointProviderV2.php
69 lines
| 1 | <?php |
| 2 | |
| 3 | namespace Aws\EndpointV2; |
| 4 | |
| 5 | use Aws\EndpointV2\Ruleset\Ruleset; |
| 6 | use Aws\Exception\UnresolvedEndpointException; |
| 7 | use Aws\LruArrayCache; |
| 8 | |
| 9 | /** |
| 10 | * Given a service's Ruleset and client-provided input parameters, provides |
| 11 | * either an object reflecting the properties of a resolved endpoint, |
| 12 | * or throws an error. |
| 13 | */ |
| 14 | class EndpointProviderV2 |
| 15 | { |
| 16 | /** @var Ruleset */ |
| 17 | private $ruleset; |
| 18 | |
| 19 | /** @var LruArrayCache */ |
| 20 | private $cache; |
| 21 | |
| 22 | public function __construct(array $ruleset, array $partitions) |
| 23 | { |
| 24 | $this->ruleset = new Ruleset($ruleset, $partitions); |
| 25 | $this->cache = new LruArrayCache(100); |
| 26 | } |
| 27 | |
| 28 | /** |
| 29 | * @return Ruleset |
| 30 | */ |
| 31 | public function getRuleset() |
| 32 | { |
| 33 | return $this->ruleset; |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * Given a Ruleset and input parameters, determines the correct endpoint |
| 38 | * or an error to be thrown for a given request. |
| 39 | * |
| 40 | * @return RulesetEndpoint |
| 41 | * @throws UnresolvedEndpointException |
| 42 | */ |
| 43 | public function resolveEndpoint(array $inputParameters) |
| 44 | { |
| 45 | $hashedParams = $this->hashInputParameters($inputParameters); |
| 46 | $match = $this->cache->get($hashedParams); |
| 47 | |
| 48 | if (!is_null($match)) { |
| 49 | return $match; |
| 50 | } |
| 51 | |
| 52 | $endpoint = $this->ruleset->evaluate($inputParameters); |
| 53 | if ($endpoint === false) { |
| 54 | throw new UnresolvedEndpointException( |
| 55 | 'Unable to resolve an endpoint using the provider arguments: ' |
| 56 | . json_encode($inputParameters) |
| 57 | ); |
| 58 | } |
| 59 | $this->cache->set($hashedParams, $endpoint); |
| 60 | |
| 61 | return $endpoint; |
| 62 | } |
| 63 | |
| 64 | private function hashInputParameters($inputParameters) |
| 65 | { |
| 66 | return md5(serialize($inputParameters)); |
| 67 | } |
| 68 | } |
| 69 |