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<?php
namespace PicoFeed\Syndication;
use DOMAttr;
use DOMElement;
/**
* Atom Feed Builder
*
* @package PicoFeed\Syndication
* @author Frederic Guillot
*/
class AtomFeedBuilder extends FeedBuilder
{
/**
* @var DOMElement
*/
protected $feedElement;
/**
* @var AtomHelper
*/
protected $helper;
/**
* Build feed
*
* @access public
* @param string $filename
* @return string
*/
public function build($filename = '')
{
$this->helper = new AtomHelper($this->getDocument());
$this->feedElement = $this->getDocument()->createElement('feed');
$this->feedElement->setAttributeNodeNS(new DomAttr('xmlns', 'http://www.w3.org/2005/Atom'));
$generator = $this->getDocument()->createElement('generator', 'PicoFeed');
$generator->setAttribute('uri', 'https://github.com/miniflux/picoFeed');
$this->feedElement->appendChild($generator);
$this->helper
->buildTitle($this->feedElement, $this->feedTitle)
->buildId($this->feedElement, $this->feedUrl)
->buildDate($this->feedElement, $this->feedDate)
->buildLink($this->feedElement, $this->siteUrl)
->buildLink($this->feedElement, $this->feedUrl, 'self', 'application/atom+xml')
->buildAuthor($this->feedElement, $this->authorName, $this->authorEmail, $this->authorUrl)
;
foreach ($this->items as $item) {
$this->feedElement->appendChild($item->build());
}
$this->getDocument()->appendChild($this->feedElement);
if ($filename !== '') {
$this->getDocument()->save($filename);
}
return $this->getDocument()->saveXML();
}
}
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