PluginFactory::checkPluginMeta

gistfile1.aw

  /**
   * Recursive function to search the meta data
   *
   * @param $plugin_info
   * @param $property
   *   this can be a string or a array of tree keys
   * @param $value
   *
   * @return bool
   */
  protected function checkPluginMeta($plugin_info, $property, $value) {
    $tree = array();
    if (is_array($property)) {
      $tree = $property;
      $property = array_shift($tree);
    }
    foreach ($plugin_info as $plugin_info_key => $plugin_info_value) {
      if ($plugin_info_key == $property) {
        if($tree) {
        return $this->checkPluginMeta($plugin_info[$plugin_info_key], $tree, $value);
        }
        else if ($plugin_info_value == $value) {
          return TRUE;
        }
      }
    }
    return FALSE;
  }

$test = array(
  'instance settings' => array(
    'whatever' => FALSE,
    'condition' => 'something',
  ),
  'sub' => array(
    'condition' => 'basic'
  ),
  'condition' => 'wrong',
);

//returns true
checkPluginMeta($test, 'condition', 'basic');