Proyectos de Subversion Moodle

Rev

Rev 1 | | Comparar con el anterior | Ultima modificación | Ver Log |

Rev Autor Línea Nro. Línea
1 efrain 1 
<?php
2 
 
3 
namespace Aws\EndpointV2;
4 
 
5 
use Aws\EndpointV2\Ruleset\Ruleset;
1441 ariadna 6 
use Aws\EndpointV2\Ruleset\RulesetEndpoint;
1 efrain 7 
use Aws\Exception\UnresolvedEndpointException;
8 
use Aws\LruArrayCache;
9 
 
10 
/**
11 
 * Given a service's Ruleset and client-provided input parameters, provides
12 
 * either an object reflecting the properties of a resolved endpoint,
13 
 * or throws an error.
14 
 */
15 
class EndpointProviderV2
16 
{
17 
    /** @var Ruleset */
18 
    private $ruleset;
19 
 
20 
    /** @var LruArrayCache */
21 
    private $cache;
22 
 
23 
    public function __construct(array $ruleset, array $partitions)
24 
    {
25 
        $this->ruleset = new Ruleset($ruleset, $partitions);
26 
        $this->cache = new LruArrayCache(100);
27 
    }
28 
 
29 
    /**
30 
     * @return Ruleset
31 
     */
32 
    public function getRuleset()
33 
    {
34 
        return $this->ruleset;
35 
    }
36 
 
37 
    /**
38 
     * Given a Ruleset and input parameters, determines the correct endpoint
39 
     * or an error to be thrown for a given request.
40 
     *
41 
     * @return RulesetEndpoint
42 
     * @throws UnresolvedEndpointException
43 
     */
44 
    public function resolveEndpoint(array $inputParameters)
45 
    {
46 
        $hashedParams = $this->hashInputParameters($inputParameters);
47 
        $match = $this->cache->get($hashedParams);
48 
 
49 
        if (!is_null($match)) {
50 
            return $match;
51 
        }
52 
 
53 
        $endpoint = $this->ruleset->evaluate($inputParameters);
54 
        if ($endpoint === false) {
55 
            throw new UnresolvedEndpointException(
56 
                'Unable to resolve an endpoint using the provider arguments: '
57 
                . json_encode($inputParameters)
58 
            );
59 
        }
60 
        $this->cache->set($hashedParams, $endpoint);
61 
 
62 
        return $endpoint;
63 
    }
64 
 
65 
    private function hashInputParameters($inputParameters)
66 
    {
67 
        return md5(serialize($inputParameters));
68 
    }
69 
}