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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Feed\Reader;
use Zend\Feed\Reader\Exception\InvalidArgumentException;
class StandaloneExtensionManager implements ExtensionManagerInterface
{
private $extensions = [
'Atom\Entry' => Extension\Atom\Entry::class,
'Atom\Feed' => Extension\Atom\Feed::class,
'Content\Entry' => Extension\Content\Entry::class,
'CreativeCommons\Entry' => Extension\CreativeCommons\Entry::class,
'CreativeCommons\Feed' => Extension\CreativeCommons\Feed::class,
'DublinCore\Entry' => Extension\DublinCore\Entry::class,
'DublinCore\Feed' => Extension\DublinCore\Feed::class,
'GooglePlayPodcast\Entry' => Extension\GooglePlayPodcast\Entry::class,
'GooglePlayPodcast\Feed' => Extension\GooglePlayPodcast\Feed::class,
'Podcast\Entry' => Extension\Podcast\Entry::class,
'Podcast\Feed' => Extension\Podcast\Feed::class,
'Slash\Entry' => Extension\Slash\Entry::class,
'Syndication\Feed' => Extension\Syndication\Feed::class,
'Thread\Entry' => Extension\Thread\Entry::class,
'WellFormedWeb\Entry' => Extension\WellFormedWeb\Entry::class,
];
/**
* Do we have the extension?
*
* @param string $extension
* @return bool
*/
public function has($extension)
{
return array_key_exists($extension, $this->extensions);
}
/**
* Retrieve the extension
*
* @param string $extension
* @return Extension\AbstractEntry|Extension\AbstractFeed
*/
public function get($extension)
{
$class = $this->extensions[$extension];
return new $class();
}
/**
* Add an extension.
*
* @param string $name
* @param string $class
*/
public function add($name, $class)
{
if (is_string($class)
&& (
is_a($class, Extension\AbstractEntry::class, true)
|| is_a($class, Extension\AbstractFeed::class, true)
)
) {
$this->extensions[$name] = $class;
return;
}
throw new InvalidArgumentException(sprintf(
'Plugin of type %s is invalid; must implement %2$s\Extension\AbstractFeed '
. 'or %2$s\Extension\AbstractEntry',
$class,
__NAMESPACE__
));
}
/**
* Remove an extension.
*
* @param string $name
*/
public function remove($name)
{
unset($this->extensions[$name]);
}
}