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<?php |
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namespace Chadicus\Marvel\Api\Cache; |
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use Psr\Http\Message\RequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Zend\Diactoros\Request; |
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use Zend\Diactoros\Response; |
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use DominionEnterprises\Util\Arrays; |
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/** |
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* Concrete implementation of Cache using an array. |
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*/ |
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final class ArrayCache extends AbstractCache implements CacheInterface |
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{ |
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/** |
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* Array containing the cached responses. |
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* |
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* @var array |
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*/ |
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private $cache; |
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/** |
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* Construct a new instance of ArrayCache. |
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* |
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* @param integer $defaultTimeToLive The default time to live in seconds. |
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* |
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* @throws \InvalidArgumentException Throw if $defaultTimeToLive is not an integer between 0 and 86400. |
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*/ |
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public function __construct(int $defaultTimeToLive = CacheInterface::MAX_TTL) |
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{ |
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$this->setDefaultTTL($defaultTimeToLive); |
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$this->cache = []; |
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} |
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/** |
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* Store the api $response as the cached result of the api $request. |
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* |
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* @param RequestInterface $request The request for which the response will be cached. |
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* @param ResponseInterface $response The reponse to cache. |
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* @param integer $timeToLive The time in seconds that the cache should live. |
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* |
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* @return void |
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* |
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* @throws \InvalidArgumentException Throw if $timeToLive is not an integer between 0 and 86400. |
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*/ |
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public function set(RequestInterface $request, ResponseInterface $response, int $timeToLive = null) |
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{ |
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$timeToLive = self::ensureTTL($timeToLive ?: $this->getDefaultTTL()); |
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$this->cache[(string)$request->getUri()] = ['response' => $response, 'expires' => time() + $timeToLive]; |
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} |
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/** |
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* Retrieve the cached results of the api $request. |
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* |
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* @param RequestInterface $request A request for which the response may be cached. |
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* |
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* @return ResponseInterface|null |
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*/ |
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public function get(RequestInterface $request) |
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{ |
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$id = (string)$request->getUri(); |
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$cache = Arrays::get($this->cache, $id); |
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if ($cache === null) { |
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return null; |
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} |
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if ($cache['expires'] >= time()) { |
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return $cache['response']; |
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} |
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unset($this->cache[$id]); |
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return null; |
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} |
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/** |
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* Clears this cache. |
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* |
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* @return void |
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*/ |
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public function clear() |
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{ |
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$this->cache = []; |
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} |
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} |
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chadicus /
marvel-api-client
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