vendor/zendframework/zend-feed/src/Reader/StandaloneExtensionManager.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Feed\Reader;
  11
  12 use Zend\Feed\Reader\Exception\InvalidArgumentException;
  13
  14 class StandaloneExtensionManager implements ExtensionManagerInterface
  15 {
  16     private $extensions = [
  17         'Atom\Entry'            => Extension\Atom\Entry::class,
  18         'Atom\Feed'             => Extension\Atom\Feed::class,
  19         'Content\Entry'         => Extension\Content\Entry::class,
  20         'CreativeCommons\Entry' => Extension\CreativeCommons\Entry::class,
  21         'CreativeCommons\Feed'  => Extension\CreativeCommons\Feed::class,
  22         'DublinCore\Entry'      => Extension\DublinCore\Entry::class,
  23         'DublinCore\Feed'       => Extension\DublinCore\Feed::class,
  24         'GooglePlayPodcast\Entry' => Extension\GooglePlayPodcast\Entry::class,
  25         'GooglePlayPodcast\Feed'  => Extension\GooglePlayPodcast\Feed::class,
  26         'Podcast\Entry'         => Extension\Podcast\Entry::class,
  27         'Podcast\Feed'          => Extension\Podcast\Feed::class,
  28         'Slash\Entry'           => Extension\Slash\Entry::class,
  29         'Syndication\Feed'      => Extension\Syndication\Feed::class,
  30         'Thread\Entry'          => Extension\Thread\Entry::class,
  31         'WellFormedWeb\Entry'   => Extension\WellFormedWeb\Entry::class,
  32     ];
  33
  34     /**
  35      * Do we have the extension?
  36      *
  37      * @param  string $extension
  38      * @return bool
  39      */
  40     public function has($extension)
  41     {
  42         return array_key_exists($extension, $this->extensions);
  43     }
  44
  45     /**
  46      * Retrieve the extension
  47      *
  48      * @param  string $extension
  49      * @return Extension\AbstractEntry|Extension\AbstractFeed
  50      */
  51     public function get($extension)
  52     {
  53         $class = $this->extensions[$extension];
  54         return new $class();
  55     }
  56
  57     /**
  58      * Add an extension.
  59      *
  60      * @param string $name
  61      * @param string $class
  62      */
  63     public function add($name, $class)
  64     {
  65         if (is_string($class)
  66             && (
  67                 is_a($class, Extension\AbstractEntry::class, true)
  68                 || is_a($class, Extension\AbstractFeed::class, true)
  69             )
  70         ) {
  71             $this->extensions[$name] = $class;
  72             return;
  73         }
  74
  75         throw new InvalidArgumentException(sprintf(
  76             'Plugin of type %s is invalid; must implement %2$s\Extension\AbstractFeed '
  77             . 'or %2$s\Extension\AbstractEntry',
  78             $class,
  79             __NAMESPACE__
  80         ));
  81     }
  82
  83     /**
  84      * Remove an extension.
  85      *
  86      * @param string $name
  87      */
  88     public function remove($name)
  89     {
  90         unset($this->extensions[$name]);
  91     }
  92 }