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<?php declare(strict_types=1); |
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/* |
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* This file is part of the feed-io package. |
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* |
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* (c) Alexandre Debril <[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 FeedIo\Parser; |
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use FeedIo\Feed\Item; |
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use FeedIo\FeedInterface; |
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use FeedIo\ParserAbstract; |
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use FeedIo\Reader\Document; |
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class JsonParser extends ParserAbstract |
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{ |
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/** |
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* @param Document $document |
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* @param FeedInterface $feed |
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* @return FeedInterface |
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*/ |
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public function parseContent(Document $document, FeedInterface $feed) : FeedInterface |
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{ |
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$data = $document->getJsonAsArray(); |
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$feed->setTitle($this->readOffset($data, 'title')); |
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$feed->setDescription($this->readOffset($data, 'description')); |
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$feed->setLink($this->readOffset($data, 'feed_url')); |
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$feed->setUrl($this->readOffset($data, 'home_page_url')); |
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if (array_key_exists('items', $data)) { |
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$this->parseItems($data['items'], $feed); |
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} |
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return $feed; |
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} |
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/** |
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* @param Document $document |
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* @param iterable $mandatoryFields |
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* @throws MissingFieldsException |
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* @return bool |
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*/ |
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public function checkBodyStructure(Document $document, iterable $mandatoryFields) : bool |
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{ |
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$data = $document->getJsonAsArray(); |
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foreach ($mandatoryFields as $mandatoryField) { |
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if (! array_key_exists($mandatoryField, $data)) { |
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throw new MissingFieldsException("Missing {$mandatoryField} in the JSON Feed"); |
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} |
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} |
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return true; |
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} |
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/** |
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* @param iterable $items |
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* @param FeedInterface $feed |
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* @return JsonParser |
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*/ |
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public function parseItems(iterable $items, FeedInterface $feed) : JsonParser |
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{ |
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foreach ($items as $dataItem) { |
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$item = new Item(); |
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$item->setPublicId($this->readOffset($dataItem, 'id')); |
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$item->setTitle($this->readOffset($dataItem, 'title')); |
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$item->setLastModified(new \DateTime($this->readOffset($dataItem, 'date_published'))); |
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$contentHtml = $this->readOffset($dataItem, 'content_html'); |
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$item->setDescription($this->readOffset($dataItem, 'content_text', $contentHtml)); |
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$feed->add($item); |
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} |
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return $this; |
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} |
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/** |
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* @param array $data |
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* @param string $offsetName |
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* @param string|null $default |
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* @return null|string |
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*/ |
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public function readOffset(array $data, string $offsetName, string $default = null) : ? string |
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{ |
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if (array_key_exists($offsetName, $data)) { |
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return $data[$offsetName]; |
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} |
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return $default; |
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} |
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} |
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alexdebril /
feed-io
