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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 = array(
'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'] );
}
}
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