Файл: core/cache_manager.php
Строк: 111
<?php
class PEEP_CacheManager
{
const CLEAN_ALL = 'all';
const CLEAN_OLD = 'old';
const CLEAN_MATCH_TAGS = 'match_tag';
const CLEAN_MATCH_ANY_TAG = 'match_any_tag';
const CLEAN_NOT_MATCH_TAGS = 'not_match_tags';
const TAG_OPTION_INSTANT_LOAD = 'base.tag_option.instant_load';
/**
* @var PEEP_ICacheBackend
*/
private $cacheBackend;
/**
* @var integer
*/
private $lifetime;
/**
* @var boolean
*/
private $cacheEnabled;
/**
* Singleton instance.
*
* @var PEEP_CacheManager
*/
private static $classInstance;
/**
* Returns an instance of class (singleton pattern implementation).
*
* @return PEEP_CacheManager
*/
public static function getInstance()
{
if ( self::$classInstance === null )
{
self::$classInstance = new self();
}
return self::$classInstance;
}
/**
* Constructor.
*/
private function __construct()
{
$this->cacheEnabled = !false;
}
public function getCacheEnabled()
{
return $this->cacheEnabled;
}
public function setCacheEnabled( $cacheEnabled )
{
$this->cacheEnabled = (bool) $cacheEnabled;
}
public function load( $key )
{
if ( $this->cacheAvailable() )
{
return $this->cacheBackend->load($key);
}
return null;
}
public function test( $key )
{
if ( $this->cacheAvailable() )
{
return $this->cacheBackend->test($key);
}
return false;
}
public function save( $data, $key, $tags = array(), $specificLifetime = false )
{
if ( $this->cacheAvailable() )
{
return $this->cacheBackend->save($data, $key, $tags, ($specificLifetime === false ? $this->lifetime : $specificLifetime));
}
return false;
}
public function remove( $key )
{
if ( $this->cacheAvailable() )
{
return $this->cacheBackend->remove($key);
}
return false;
}
public function clean( $tags = array(), $mode = self::CLEAN_MATCH_ANY_TAG )
{
if ( $this->cacheAvailable() )
{
return $this->cacheBackend->clean($tags, $mode);
}
return false;
}
/**
* @param PEEP_ICacheBackend $cacheBackend
*/
public function setCacheBackend( PEEP_ICacheBackend $cacheBackend )
{
$this->cacheBackend = $cacheBackend;
}
/**
* @param int $lifetime
*/
public function setLifetime( $lifetime )
{
$this->lifetime = $lifetime;
}
private function cacheAvailable()
{
return $this->cacheBackend !== null && $this->cacheEnabled;
}
}