www.aleph1.co.uk Git - yaffs-website/blob - 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         'Podcast\Entry'         => Extension\Podcast\Entry::class,
  25         'Podcast\Feed'          => Extension\Podcast\Feed::class,
  26         'Slash\Entry'           => Extension\Slash\Entry::class,
  27         'Syndication\Feed'      => Extension\Syndication\Feed::class,
  28         'Thread\Entry'          => Extension\Thread\Entry::class,
  29         'WellFormedWeb\Entry'   => Extension\WellFormedWeb\Entry::class,
  30     ];
  31
  32     /**
  33      * Do we have the extension?
  34      *
  35      * @param  string $extension
  36      * @return bool
  37      */
  38     public function has($extension)
  39     {
  40         return array_key_exists($extension, $this->extensions);
  41     }
  42
  43     /**
  44      * Retrieve the extension
  45      *
  46      * @param  string $extension
  47      * @return Extension\AbstractEntry|Extension\AbstractFeed
  48      */
  49     public function get($extension)
  50     {
  51         $class = $this->extensions[$extension];
  52         return new $class();
  53     }
  54
  55     /**
  56      * Add an extension.
  57      *
  58      * @param string $name
  59      * @param string $class
  60      */
  61     public function add($name, $class)
  62     {
  63         if (is_string($class)
  64             && (
  65                 is_a($class, Extension\AbstractEntry::class, true)
  66                 || is_a($class, Extension\AbstractFeed::class, true)
  67             )
  68         ) {
  69             $this->extensions[$name] = $class;
  70             return;
  71         }
  72
  73         throw new InvalidArgumentException(sprintf(
  74             'Plugin of type %s is invalid; must implement %2$s\Extension\AbstractFeed '
  75             . 'or %2$s\Extension\AbstractEntry',
  76             $class,
  77             __NAMESPACE__
  78         ));
  79     }
  80
  81     /**
  82      * Remove an extension.
  83      *
  84      * @param string $name
  85      */
  86     public function remove($name)
  87     {
  88         unset($this->extensions[$name]);
  89     }
  90 }