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<?php |
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/** |
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* Rss/Atom Bundle for Symfony 2. |
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* |
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* |
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* @license http://opensource.org/licenses/lgpl-3.0.html LGPL |
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* @copyright (c) 2013, Alexandre Debril |
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*/ |
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namespace Debril\RssAtomBundle\Protocol\Parser; |
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use Debril\RssAtomBundle\Exception\ParserException; |
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use Debril\RssAtomBundle\Protocol\FeedInterface; |
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use Debril\RssAtomBundle\Protocol\ItemInInterface; |
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use Debril\RssAtomBundle\Protocol\Parser; |
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use SimpleXMLElement; |
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/** |
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* Class AtomParser. |
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*/ |
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class AtomParser extends Parser |
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{ |
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protected $mandatoryFields = array( |
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'id', |
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'updated', |
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'title', |
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'link', |
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'entry', |
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); |
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/** |
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* |
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*/ |
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public function __construct() |
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{ |
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$this->setdateFormats(array(\DateTime::RFC3339)); |
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} |
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/** |
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* @param SimpleXMLElement $xmlBody |
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* |
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* @return bool |
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*/ |
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public function canHandle(SimpleXMLElement $xmlBody) |
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{ |
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return 'feed' === $xmlBody->getName(); |
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} |
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/** |
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* @param SimpleXMLElement $xmlBody |
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* @param FeedInterface $feed |
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* @param array $filters |
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* |
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* @return FeedInterface |
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* |
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* @throws ParserException |
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*/ |
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protected function parseBody(SimpleXMLElement $xmlBody, FeedInterface $feed, array $filters) |
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{ |
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$this->parseHeaders($xmlBody, $feed); |
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$namespaces = $xmlBody->getNamespaces(true); |
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foreach ($xmlBody->entry as $xmlElement) { |
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$itemFormat = isset($itemFormat) ? $itemFormat : $this->guessDateFormat($xmlElement->updated); |
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$item = $this->newItem(); |
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$item->setTitle($xmlElement->title) |
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->setPublicId($xmlElement->id) |
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->setSummary($this->parseContent($xmlElement->summary)) |
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->setDescription($this->parseContent($xmlElement->content)) |
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->setUpdated(static::convertToDateTime($xmlElement->updated, $itemFormat)); |
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$item->setLink($this->detectLink($xmlElement, 'alternate')); |
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if ($xmlElement->author) { |
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$item->setAuthor($xmlElement->author->name); |
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} |
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$item->setAdditional($this->getAdditionalNamespacesElements($xmlElement, $namespaces)); |
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$this->handleEnclosure($xmlElement, $item); |
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$this->parseCategories($xmlElement, $item); |
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$this->addValidItem($feed, $item, $filters); |
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} |
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return $feed; |
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} |
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/** |
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* @param SimpleXMLElement $xmlBody |
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* @param FeedInterface $feed |
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* |
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* @throws ParserException |
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*/ |
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protected function parseHeaders(SimpleXMLElement $xmlBody, FeedInterface $feed) |
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{ |
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$feed->setPublicId($xmlBody->id); |
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$feed->setLink(current($this->detectLink($xmlBody, 'self'))); |
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$feed->setTitle($xmlBody->title); |
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$feed->setDescription($xmlBody->subtitle); |
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$format = $this->guessDateFormat($xmlBody->updated); |
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$updated = static::convertToDateTime($xmlBody->updated, $format); |
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$feed->setLastModified($updated); |
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} |
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/** |
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* @param SimpleXMLElement $xmlElement |
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* @param string $type |
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*/ |
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protected function detectLink(SimpleXMLElement $xmlElement, $type) |
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{ |
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foreach ($xmlElement->link as $xmlLink) { |
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if ((string) $xmlLink['rel'] === $type) { |
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return $xmlLink['href']; |
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} |
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} |
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// return the first if the desired link does not exist |
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return $xmlElement->link[0]['href']; |
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} |
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protected function parseContent(SimpleXMLElement $content) |
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{ |
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if ($content && 0 < $content->children()->count()) { |
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$out = ''; |
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foreach ($content->children() as $child) { |
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$out .= $child->asXML(); |
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} |
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return $out; |
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} |
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return $content; |
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} |
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/** |
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* Handles enclosures if any. |
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* |
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* @param SimpleXMLElement $element |
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* @param ItemInInterface $item |
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* |
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* @return $this |
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*/ |
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protected function handleEnclosure(SimpleXMLElement $element, ItemInInterface $item) |
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{ |
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foreach ($element->link as $link) { |
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if (strcasecmp($this->getAttributeValue($link, 'rel'), 'enclosure') === 0) { |
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$media = $this->createMedia($link); |
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$item->addMedia($media); |
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} |
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} |
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return $this; |
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} |
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/** |
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* Parse category elements. |
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* We may have more than one. |
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* |
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* @param SimpleXMLElement $element |
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* @param ItemInInterface $item |
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*/ |
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3 |
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protected function parseCategories(SimpleXMLElement $element, ItemInInterface $item) |
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{ |
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foreach ($element->category as $xmlCategory) { |
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$category = new Category(); |
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$category->setName($this->getAttributeValue($xmlCategory, 'term')); |
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$item->addCategory($category); |
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} |
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} |
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} |
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alexdebril /
rss-atom-bundle
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.