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<?php |
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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\Standard; |
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use DOMDocument; |
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use FeedIo\Rule\Atom\LinkNode; |
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use FeedIo\Rule\Description; |
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use FeedIo\Rule\PublicId; |
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use FeedIo\Rule\Atom\Category; |
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use FeedIo\StandardAbstract; |
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class Atom extends StandardAbstract |
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{ |
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/** |
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* Atom document must have a <feed> root node |
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*/ |
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const ROOT_NODE_TAGNAME = 'feed'; |
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const ITEM_NODE = 'entry'; |
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/** |
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* Formats the document according to the standard's specification |
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* @param \DOMDocument $document |
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* @return \DOMDocument |
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*/ |
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public function format(\DOMDocument $document) |
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{ |
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$element = $document->createElement('feed'); |
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$element->setAttribute('xmlns', 'http://www.w3.org/2005/Atom'); |
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$document->appendChild($element); |
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return $document; |
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} |
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/** |
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* Tells if the parser can handle the feed or not |
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* @param \DOMDocument $document |
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* @return mixed |
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*/ |
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public function canHandle(\DOMDocument $document) |
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{ |
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return self::ROOT_NODE_TAGNAME === $document->documentElement->tagName; |
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} |
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/** |
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* @param DOMDocument $document |
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* @return \DomElement |
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*/ |
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public function getMainElement(\DOMDocument $document) |
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{ |
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return $document->documentElement; |
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} |
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/** |
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* Builds and returns a rule set to parse the root node |
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* @return \FeedIo\RuleSet |
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*/ |
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public function buildFeedRuleSet() |
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{ |
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$ruleSet = $this->buildBaseRuleSet(); |
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$ruleSet |
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->add(new LinkNode()) |
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->add(new PublicId('id')) |
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->add($this->getModifiedSinceRule('updated')) |
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; |
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return $ruleSet; |
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} |
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/** |
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* Builds and returns a rule set to parse an item |
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* @return \FeedIo\RuleSet |
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*/ |
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public function buildItemRuleSet() |
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{ |
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$ruleSet = $this->buildFeedRuleSet(); |
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$ruleSet->add(new Description('content'), ['summary']); |
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return $ruleSet; |
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} |
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/** |
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* @return RuleSet |
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*/ |
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protected function buildBaseRuleSet() |
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{ |
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$ruleSet = parent::buildBaseRuleSet(); |
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$ruleSet->add(new Category()); |
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return $ruleSet; |
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} |
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} |
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alexdebril /
feed-io
