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<?php /* vim: set expandtab sw=4 ts=4 sts=4: */ /** * This class is responsible for creating Node objects * * @package PhpMyAdmin-navigation */ declare(strict_types=1); namespace PhpMyAdmin\Navigation; use PhpMyAdmin\Navigation\Nodes\Node; /** * Node factory - instantiates Node objects or objects derived from the Node class * * @package PhpMyAdmin-Navigation */ class NodeFactory { protected static $namespace = 'PhpMyAdmin\\Navigation\\Nodes\\%s'; /** * Sanitizes the name of a Node class * * @param string $class The class name to be sanitized * * @return string */ private static function sanitizeClass($class) { if (! preg_match('@^Node\w*$@', $class)) { $class = 'Node'; trigger_error( sprintf( /* l10n: The word "Node" must not be translated here */ __('Invalid class name "%1$s", using default of "Node"'), $class ), E_USER_ERROR ); } return self::checkClass($class); } /** * Checks if a class exists and try to load it. * Will return the default class name back if the * file for some subclass is not available * * @param string $class The class name to check * * @return string */ private static function checkClass($class) { $class = sprintf(self::$namespace, $class); if (! class_exists($class)) { $class = sprintf(self::$namespace, 'Node'); trigger_error( sprintf( __('Could not load class "%1$s"'), $class ), E_USER_ERROR ); } return $class; } /** * Instantiates a Node object * * @param string $class The name of the class to instantiate * @param string $name An identifier for the new node * @param int $type Type of node, may be one of CONTAINER or OBJECT * @param bool $isGroup Whether this object has been created * while grouping nodes * * @return mixed */ public static function getInstance( $class = 'Node', $name = 'default', $type = Node::OBJECT, $isGroup = false ) { $class = self::sanitizeClass($class); return new $class($name, $type, $isGroup); } }