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<?php /** * WPSEO plugin file. * * @package WPSEO\XML_Sitemaps */ /** * Sitemap Cache Data object, manages sitemap data stored in cache. */ class WPSEO_Sitemap_Cache_Data implements WPSEO_Sitemap_Cache_Data_Interface, Serializable { /** * Sitemap XML data. * * @var string */ private $sitemap = ''; /** * Status of the sitemap, usable or not. * * @var string */ private $status = self::UNKNOWN; /** * Set the sitemap XML data * * @param string $sitemap XML Content of the sitemap. */ public function set_sitemap( $sitemap ) { if ( ! is_string( $sitemap ) ) { $sitemap = ''; } $this->sitemap = $sitemap; /* * Empty sitemap is not usable. */ if ( ! empty( $sitemap ) ) { $this->set_status( self::OK ); } else { $this->set_status( self::ERROR ); } } /** * Set the status of the sitemap, is it usable. * * @param bool|string $valid Is the sitemap valid or not. * * @return void */ public function set_status( $valid ) { if ( self::OK === $valid ) { $this->status = self::OK; return; } if ( self::ERROR === $valid ) { $this->status = self::ERROR; $this->sitemap = ''; return; } $this->status = self::UNKNOWN; } /** * Is the sitemap usable. * * @return bool True if usable, False if bad or unknown. */ public function is_usable() { return self::OK === $this->status; } /** * Get the XML content of the sitemap. * * @return string The content of the sitemap. */ public function get_sitemap() { return $this->sitemap; } /** * Get the status of the sitemap. * * @return string Status of the sitemap, 'ok'/'error'/'unknown'. */ public function get_status() { return $this->status; } /** * String representation of object. * * @link http://php.net/manual/en/serializable.serialize.php * * @since 5.1.0 * * @return string The string representation of the object or null. */ public function serialize() { $data = [ 'status' => $this->status, 'xml' => $this->sitemap, ]; return serialize( $data ); } /** * Constructs the object. * * @link http://php.net/manual/en/serializable.unserialize.php * * @since 5.1.0 * * @param string $serialized The string representation of the object. * * @return void */ public function unserialize( $serialized ) { $data = unserialize( $serialized ); $this->set_sitemap( $data['xml'] ); $this->set_status( $data['status'] ); } }