Current File : /home/tradesc/www/relax/wp-content/plugins/google-site-kit/includes/Core/Storage/Cache.php
<?php
/**
* Class Google\Site_Kit\Core\Storage\Cache
*
* @package Google\Site_Kit
* @copyright 2021 Google LLC
* @license https://www.apache.org/licenses/LICENSE-2.0 Apache License 2.0
* @link https://sitekit.withgoogle.com
*/
namespace Google\Site_Kit\Core\Storage;
use Google\Site_Kit_Dependencies\Google\Service\Exception as Google_Service_Exception;
/**
* Class providing a server side caching framework.
*
* @since 1.0.0
* @access private
* @ignore
*/
final class Cache {
/**
* The key for saving the global cache keys.
*
* @var string $global_cache_keys_key The key.
*/
private static $global_cache_keys_key = 'googlesitekit_global_cache_keys';
/**
* The global record of cache keys used on the site.
*
* @var array
*/
private $global_cache_keys;
/**
* Construct the Cache class.
*/
public function __construct() {
$this->global_cache_keys = get_option( self::$global_cache_keys_key ) ?: array();
}
/**
* Helper function to get the cache data.
*/
public function get_current_cache_data() {
$cache_data = array();
// Add the global cache data.
$keys = $this->get_global_cache_keys();
foreach ( $keys as $key ) {
// This only retrieves fresh data because transients expire.
$cache = get_transient( 'googlesitekit_' . $key );
if ( $cache ) {
$cache_data[ $key ] = $cache;
} else {
// Remove the expired key from the global cache.
$this->remove_global_cache_key( $key );
}
}
return $cache_data;
}
/**
* Remove a cache key to the global record of cache keys.
*
* @param string $key The key to add.
*/
private function remove_global_cache_key( $key ) {
$key_index = array_search( $key, $this->global_cache_keys, true );
if ( $key_index ) {
unset( $this->global_cache_keys[ $key_index ] );
update_option( self::$global_cache_keys_key, $this->global_cache_keys, false );
}
}
/**
* Add a cache key to the global record of cache keys.
*
* @param string $key The key to add.
*/
private function add_global_cache_key( $key ) {
// Only add the key if it isn't already present.
if ( ! in_array( $key, $this->global_cache_keys, true ) ) {
$this->global_cache_keys[] = $key;
update_option( self::$global_cache_keys_key, $this->global_cache_keys, false );
}
}
/**
* Retrieve the global record of cache keys.
*
* @return array The array of cache keys used on the site.
*/
private function get_global_cache_keys() {
return $this->global_cache_keys;
}
/**
* Cache some data.
*
* @param Object $key The original data key.
* @param Object $data The data to cache.
*/
public function set_cache_data( $key, $data ) {
set_transient( 'googlesitekit_' . $key, $data, HOUR_IN_SECONDS );
$this->add_global_cache_key( $key );
}
/**
* Cache the results of a batch operation.
*
* @param array $batch_requests The original requests.
* @param array $results The results to cache.
*/
public function cache_batch_results( $batch_requests, $results ) {
$request_keys = wp_list_pluck( $batch_requests, 'key' );
foreach ( $results as $key => $result ) {
if ( $result instanceof \Exception || $result instanceof Google_Service_Exception ) {
continue;
}
$key = str_replace( 'response-', '', $key );
if ( in_array( $key, $request_keys, true ) ) {
$this->set_cache_data( $key, $result );
}
}
}
}
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