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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\ClientInterface; |
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use Buzz\Message\MessageInterface; |
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use Buzz\Message\Response; |
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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 ClientInterface */ |
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private $httpClient; |
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/** @var MessageInterface */ |
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private $response; |
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/** |
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* @param ClientInterface $httpClient |
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* @param MessageInterface $response |
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* |
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* @throws \UnexpectedValueException |
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*/ |
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public function __construct(ClientInterface $httpClient, MessageInterface $response) |
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{ |
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/** @var Response $response */ |
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if (!$response->isOk()) { |
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throw new \UnexpectedValueException("Can't paginate an unsuccessful response."); |
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} |
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$this->httpClient = $httpClient; |
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$this->response = $response; |
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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 = $this->httpClient->get($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 = $this->httpClient->get($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, $content['values']); |
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if (null !== ($next = $this->fetchNext())) { |
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$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->setContent(json_encode($content)); |
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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($this->response->getContent(), true); |
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if (is_array($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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