Chris@0: <?php
Chris@0: /**
Chris@0:  * Zend Framework (http://framework.zend.com/)
Chris@0:  *
Chris@0:  * @link      http://github.com/zendframework/zf2 for the canonical source repository
Chris@0:  * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
Chris@0:  * @license   http://framework.zend.com/license/new-bsd New BSD License
Chris@0:  */
Chris@0: 
Chris@0: namespace Zend\Feed\Reader;
Chris@0: 
Chris@12: use Zend\Feed\Reader\Exception\InvalidArgumentException;
Chris@12: 
Chris@0: class StandaloneExtensionManager implements ExtensionManagerInterface
Chris@0: {
Chris@0:     private $extensions = [
Chris@12:         'Atom\Entry'            => Extension\Atom\Entry::class,
Chris@12:         'Atom\Feed'             => Extension\Atom\Feed::class,
Chris@12:         'Content\Entry'         => Extension\Content\Entry::class,
Chris@12:         'CreativeCommons\Entry' => Extension\CreativeCommons\Entry::class,
Chris@12:         'CreativeCommons\Feed'  => Extension\CreativeCommons\Feed::class,
Chris@12:         'DublinCore\Entry'      => Extension\DublinCore\Entry::class,
Chris@12:         'DublinCore\Feed'       => Extension\DublinCore\Feed::class,
Chris@16:         'GooglePlayPodcast\Entry' => Extension\GooglePlayPodcast\Entry::class,
Chris@16:         'GooglePlayPodcast\Feed'  => Extension\GooglePlayPodcast\Feed::class,
Chris@12:         'Podcast\Entry'         => Extension\Podcast\Entry::class,
Chris@12:         'Podcast\Feed'          => Extension\Podcast\Feed::class,
Chris@12:         'Slash\Entry'           => Extension\Slash\Entry::class,
Chris@12:         'Syndication\Feed'      => Extension\Syndication\Feed::class,
Chris@12:         'Thread\Entry'          => Extension\Thread\Entry::class,
Chris@12:         'WellFormedWeb\Entry'   => Extension\WellFormedWeb\Entry::class,
Chris@0:     ];
Chris@0: 
Chris@0:     /**
Chris@0:      * Do we have the extension?
Chris@0:      *
Chris@0:      * @param  string $extension
Chris@0:      * @return bool
Chris@0:      */
Chris@0:     public function has($extension)
Chris@0:     {
Chris@0:         return array_key_exists($extension, $this->extensions);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Retrieve the extension
Chris@0:      *
Chris@0:      * @param  string $extension
Chris@0:      * @return Extension\AbstractEntry|Extension\AbstractFeed
Chris@0:      */
Chris@0:     public function get($extension)
Chris@0:     {
Chris@0:         $class = $this->extensions[$extension];
Chris@0:         return new $class();
Chris@0:     }
Chris@12: 
Chris@12:     /**
Chris@12:      * Add an extension.
Chris@12:      *
Chris@12:      * @param string $name
Chris@12:      * @param string $class
Chris@12:      */
Chris@12:     public function add($name, $class)
Chris@12:     {
Chris@12:         if (is_string($class)
Chris@12:             && (
Chris@12:                 is_a($class, Extension\AbstractEntry::class, true)
Chris@12:                 || is_a($class, Extension\AbstractFeed::class, true)
Chris@12:             )
Chris@12:         ) {
Chris@12:             $this->extensions[$name] = $class;
Chris@12:             return;
Chris@12:         }
Chris@12: 
Chris@12:         throw new InvalidArgumentException(sprintf(
Chris@12:             'Plugin of type %s is invalid; must implement %2$s\Extension\AbstractFeed '
Chris@12:             . 'or %2$s\Extension\AbstractEntry',
Chris@12:             $class,
Chris@12:             __NAMESPACE__
Chris@12:         ));
Chris@12:     }
Chris@12: 
Chris@12:     /**
Chris@12:      * Remove an extension.
Chris@12:      *
Chris@12:      * @param string $name
Chris@12:      */
Chris@12:     public function remove($name)
Chris@12:     {
Chris@12:         unset($this->extensions[$name]);
Chris@12:     }
Chris@0: }