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[*] Classes: refactoring of cache classes

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git-svn-id: http://dev.prestashop.com/svn/v1/branches/1.5.x@9191 b9a71923-0436-4b27-9f14-aed3839534dd
This commit is contained in:
rMalie
2011-10-10 14:45:27 +00:00
parent 31815febc5
commit ce914bd435
5 changed files with 512 additions and 321 deletions
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classes/cache/CacheFs.php
Vendored
+74 -103
View File
@@ -25,144 +25,105 @@
* International Registered Trademark & Property of PrestaShop SA
*/
class CacheFsCore extends Cache {
class CacheFsCore extends Cache
{
/**
* @var int Number of subfolders to dispatch cached filenames
*/
protected $depth;
protected $_depth;
/**
* @var string Cache directory path
*/
protected $path;
protected function __construct()
{
parent::__construct();
$this->_init();
$this->depth = Db::getInstance()->getValue('SELECT value FROM '._DB_PREFIX_.'configuration WHERE name= \'PS_CACHEFS_DIRECTORY_DEPTH\'', false);
$this->path = _PS_CACHEFS_DIRECTORY_;
$keys_filename = $this->getFilename(self::KEYS_NAME);
if (file_exists($keys_filename))
$this->keys = unserialize(file_get_contents($keys_filename));
}
protected function _init()
/**
* @see Cache::_set()
*/
protected function _set($key, $value, $ttl = 0)
{
$this->_depth = Db::getInstance()->getValue('SELECT value FROM '._DB_PREFIX_.'configuration WHERE name=\'PS_CACHEFS_DIRECTORY_DEPTH\'', false);
return $this->_setKeys();
return (@file_put_contents($this->getFilename($key), serialize($value)));
}
public function set($key, $value, $expire = 0)
/**
* @see Cache::_get()
*/
protected function _get($key)
{
$path = $this->getPath();
for ($i = 0; $i < $this->_depth; $i++)
$path .= $key[$i].'/';
if (@file_put_contents($path.$key, serialize($value)))
$filename = $this->getFilename($key);
if (!file_exists($filename))
{
$this->_keysCached[$key] = true;
return $key;
}
return false;
}
public function setNumRows($key, $value, $expire = 0)
{
return $this->set($key.'_nrows', $value, $expire);
}
public function getNumRows($key)
{
return $this->get($key.'_nrows');
}
public function get($key)
{
if (!isset($this->_keysCached[$key]))
return false;
$path = $this->getPath();
for ($i = 0; $i < $this->_depth; $i++)
$path .= $key[$i].'/';
if (!file_exists($path.$key))
{
unset($this->_keysCached[$key]);
unset($this->keys[$key]);
$this->_writeKeys();
return false;
}
$file = file_get_contents($path.$key);
$file = file_get_contents($filename);
return unserialize($file);
}
protected function _setKeys()
/**
* @see Cache::_exists()
*/
protected function _exists($key)
{
if (file_exists($this->getPath().'keysCached'))
{
$file = file_get_contents($this->getPath().'keysCached');
$this->_keysCached = unserialize($file);
}
if (file_exists($this->getPath().'tablesCached'))
{
$file = file_get_contents($this->getPath().'tablesCached');
$this->_tablesCached = unserialize($file);
}
return true;
return file_exists($this->getFilename($key));
}
public function setQuery($query, $result)
/**
* @see Cache::_delete()
*/
protected function _delete($key)
{
$md5_query = md5($query);
if ($this->isBlacklist($query))
$filename = $this->getFilename($key);
if (!file_exists($filename))
return true;
$this->_setKeys();
if (isset($this->_keysCached[$md5_query]))
return true;
$key = $this->set($md5_query, $result);
if (preg_match_all('/('._DB_PREFIX_.'[a-z_-]*)`?.*/i', $query, $res))
foreach($res[1] AS $table)
if(!isset($this->_tablesCached[$table][$key]))
$this->_tablesCached[$table][$key] = true;
$this->_writeKeys();
return unlink($filename);
}
public function delete($key, $timeout = 0)
/**
* @see Cache::_writeKeys()
*/
protected function _writeKeys()
{
$path = $this->getPath();
if (!isset($this->_keysCached[$key]))
return;
for ($i = 0; $i < $this->_depth; $i++)
$path.=$key[$i].'/';
if (!file_exists($path.$key))
return true;
if (!unlink($path.$key))
return false;
unset($this->_keysCached[$key]);
return true;
}
public function deleteQuery($query)
{
$this->_setKeys();
if (preg_match_all('/('._DB_PREFIX_.'[a-z_-]*)`?.*/i', $query, $res))
foreach ($res[1] AS $table)
if (isset($this->_tablesCached[$table]))
{
foreach (array_keys($this->_tablesCached[$table]) AS $fsKey)
{
$this->delete($fsKey);
$this->delete($fsKey.'_nrows');
}
unset($this->_tablesCached[$table]);
}
$this->_writeKeys();
@file_put_contents($this->getFilename(self::KEYS_NAME), serialize($this->keys));
}
/**
* @see Cache::flush()
*/
public function flush()
{
$this->delete('*');
}
private function _writeKeys()
{
@file_put_contents($this->getPath().'keysCached', serialize($this->_keysCached));
@file_put_contents($this->getPath().'tablesCached', serialize($this->_tablesCached));
}
/**
* Delete cache directory
*/
public static function deleteCacheDirectory()
{
Tools::deleteDirectory($this->getPath(), false);
Tools::deleteDirectory($this->path, false);
}
/**
* Create cache directory
*
* @param int $level_depth
* @param string $directory
*/
public static function createCacheDirectories($level_depth, $directory = false)
{
if (!$directory)
$directory = $this->getPath();
$directory = $this->path;
$chars = '0123456789abcdefghijklmnopqrstuvwxyz';
for ($i = 0; $i < strlen($chars); $i++)
{
@@ -174,8 +135,18 @@ class CacheFsCore extends Cache {
}
}
protected function getPath()
/**
* Transform a key into its absolute path
*
* @param string $key
* @return string
*/
protected function getFilename($key)
{
return (defined('_PS_CACHEFS_DIRECTORY_') ? _PS_CACHEFS_DIRECTORY_ : dirname(__FILE__).'/../cache/cachefs/');
$path = $this->path;
for ($i = 0; $i < $this->depth; $i++)
$path .= $key[$i].'/';
return $path.$key;
}
}