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<?php |
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/** |
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* This file is part of the bitbucket-api package. |
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* |
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* (c) Alexandru G. <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Bitbucket\API\Http\Response; |
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use Bitbucket\API\Http\HttpPluginClientBuilder; |
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use Http\Discovery\MessageFactoryDiscovery; |
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use Http\Message\MessageFactory; |
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use Psr\Http\Message\ResponseInterface; |
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/** |
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* @author Alexandru Guzinschi <[email protected]> |
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*/ |
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class Pager implements PagerInterface |
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{ |
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/** @var HttpPluginClientBuilder */ |
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private $httpPluginClientBuilder; |
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/** @var MessageFactory */ |
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private $messageFactory; |
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/** @var ResponseInterface */ |
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private $response; |
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/** |
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* @param HttpPluginClientBuilder $httpPluginClientBuilder |
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* @param ResponseInterface $response |
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* @param MessageFactory $messageFactory |
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* |
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* @throws \UnexpectedValueException |
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*/ |
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public function __construct( |
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HttpPluginClientBuilder $httpPluginClientBuilder, |
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ResponseInterface $response, |
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MessageFactory $messageFactory = null |
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) { |
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/** @var ResponseInterface $response */ |
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if ($response->getStatusCode() >= 400) { |
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throw new \UnexpectedValueException("Can't paginate an unsuccessful response."); |
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} |
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$this->httpPluginClientBuilder = $httpPluginClientBuilder; |
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$this->response = $response; |
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$this->messageFactory = $messageFactory ? : MessageFactoryDiscovery::find(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function hasNext() |
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{ |
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return array_key_exists('next', $this->getContent()); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function hasPrevious() |
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{ |
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return array_key_exists('previous', $this->getContent()); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function fetchNext() |
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{ |
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if ($this->hasNext()) { |
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$content = $this->getContent(); |
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return $this->response = $this->httpPluginClientBuilder->getHttpClient()->get($content['next']); |
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} |
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return null; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function fetchPrevious() |
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{ |
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if ($this->hasPrevious()) { |
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$content = $this->getContent(); |
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return $this->response = $this->httpPluginClientBuilder->getHttpClient()->get($content['previous']); |
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} |
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return null; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function fetchAll() |
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{ |
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$content = $this->getContent(); |
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$values = []; |
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// merge all `values` and replace it inside the most recent response. |
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while (true) { |
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if (!array_key_exists('values', $content)) { |
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break; |
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} |
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$values = (0 === count($values)) ? $content['values'] : array_merge($values, $content['values']); |
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if (null !== $this->fetchNext()) { |
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$content = $this->getContent(); |
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continue; |
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} |
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break; |
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} |
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$content['values'] = $values; |
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$this->response = $this->messageFactory->createResponse( |
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$this->response->getStatusCode(), |
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$this->response->getReasonPhrase(), |
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$this->response->getHeaders(), |
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json_encode($content), |
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$this->response->getProtocolVersion() |
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); |
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return $this->response; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getCurrent() |
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{ |
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return $this->response; |
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} |
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/** |
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* @access private |
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* @return array |
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*/ |
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private function getContent() |
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{ |
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$content = json_decode($this->response->getBody()->getContents(), true); |
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$this->response->getBody()->rewind(); |
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if (is_array($content) && JSON_ERROR_NONE === json_last_error()) { |
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// replace reference inserted by `LegacyCollectionListener` with actual data. |
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if (array_key_exists('values', $content) && |
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is_string($content['values']) && |
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strpos($content['values'], '.') !== false) { |
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$content['values'] = $content[str_replace('.', '', $content['values'])]; |
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} |
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return $content; |
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} |
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return []; |
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} |
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} |
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