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<?php |
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/* |
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* This file is part of the Ivory Http Adapter package. |
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* |
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* (c) Eric GELOEN <[email protected]> |
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* |
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* For the full copyright and license information, please read the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Ivory\HttpAdapter\Event\Subscriber; |
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use Ivory\HttpAdapter\Event\Cache\CacheInterface; |
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use Ivory\HttpAdapter\Event\Events; |
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use Ivory\HttpAdapter\Event\MultiRequestCreatedEvent; |
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use Ivory\HttpAdapter\Event\MultiRequestErroredEvent; |
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use Ivory\HttpAdapter\Event\MultiRequestSentEvent; |
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use Ivory\HttpAdapter\Event\RequestCreatedEvent; |
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use Ivory\HttpAdapter\Event\RequestErroredEvent; |
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use Ivory\HttpAdapter\Event\RequestSentEvent; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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/** |
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* @author GeLo <[email protected]> |
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*/ |
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class CacheSubscriber implements EventSubscriberInterface |
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{ |
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/** |
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* @var CacheInterface |
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*/ |
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private $cache; |
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/** |
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* @param CacheInterface $cache |
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*/ |
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public function __construct(CacheInterface $cache) |
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{ |
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$this->setCache($cache); |
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} |
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/** |
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* @return CacheInterface |
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*/ |
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public function getCache() |
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{ |
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return $this->cache; |
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} |
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/** |
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* @param CacheInterface $cache |
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*/ |
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public function setCache(CacheInterface $cache) |
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{ |
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$this->cache = $cache; |
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} |
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/** |
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* @param RequestCreatedEvent $event |
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*/ |
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public function onRequestCreated(RequestCreatedEvent $event) |
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{ |
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$request = $event->getRequest(); |
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$messageFactory = $event->getHttpAdapter()->getConfiguration()->getMessageFactory(); |
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if (($response = $this->cache->getResponse($request, $messageFactory)) !== null) { |
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$event->setResponse($response); |
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} elseif (($exception = $this->cache->getException($request, $messageFactory)) !== null) { |
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$event->setException($exception); |
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} |
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} |
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/** |
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* @param RequestSentEvent $event |
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*/ |
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public function onRequestSent(RequestSentEvent $event) |
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{ |
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$this->cache->saveResponse($event->getResponse(), $event->getRequest()); |
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} |
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/** |
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* @param RequestErroredEvent $event |
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*/ |
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public function onRequestErrored(RequestErroredEvent $event) |
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{ |
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$this->cache->saveException($event->getException(), $event->getException()->getRequest()); |
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} |
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/** |
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* @param MultiRequestCreatedEvent $event |
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*/ |
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public function onMultiRequestCreated(MultiRequestCreatedEvent $event) |
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{ |
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$messageFactory = $event->getHttpAdapter()->getConfiguration()->getMessageFactory(); |
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foreach ($event->getRequests() as $request) { |
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if (($response = $this->cache->getResponse($request, $messageFactory)) !== null) { |
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$event->addResponse($response); |
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$event->removeRequest($request); |
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} elseif (($exception = $this->cache->getException($request, $messageFactory)) !== null) { |
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$event->addException($exception); |
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$event->removeRequest($request); |
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} |
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} |
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} |
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/** |
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* @param MultiRequestSentEvent $event |
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*/ |
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public function onMultiRequestSent(MultiRequestSentEvent $event) |
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{ |
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foreach ($event->getResponses() as $response) { |
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$this->cache->saveResponse($response, $response->getParameter('request')); |
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} |
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} |
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/** |
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* @param MultiRequestErroredEvent $event |
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*/ |
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public function onMultiRequestErrored(MultiRequestErroredEvent $event) |
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{ |
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foreach ($event->getResponses() as $response) { |
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$this->cache->saveResponse($response, $response->getParameter('request')); |
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} |
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foreach ($event->getExceptions() as $exception) { |
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$this->cache->saveException($exception, $exception->getRequest()); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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View Code Duplication |
public static function getSubscribedEvents() |
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{ |
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return [ |
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Events::REQUEST_CREATED => ['onRequestCreated', -100], |
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Events::REQUEST_SENT => ['onRequestSent', -100], |
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Events::REQUEST_ERRORED => ['onRequestErrored', -100], |
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Events::MULTI_REQUEST_CREATED => ['onMultiRequestCreated', -100], |
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Events::MULTI_REQUEST_SENT => ['onMultiRequestSent', -100], |
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Events::MULTI_REQUEST_ERRORED => ['onMultiRequestErrored', -100], |
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]; |
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} |
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} |
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Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: