/usr/share/php/Horde/Cache/Storage/Hashtable.php is in php-horde-cache 2.5.2-1build1.
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/**
* Copyright 2013-2016 Horde LLC (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.horde.org/licenses/lgpl21.
*
* @category Horde
* @copyright 2013-2016 Horde LLC
* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
* @package Cache
*/
/**
* Cache storage using the Horde_HashTable interface.
*
* @author Michael Slusarz <slusarz@horde.org>
* @category Horde
* @copyright 2013-2016 Horde LLC
* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
* @package Cache
* @since 2.2.0
*/
class Horde_Cache_Storage_Hashtable extends Horde_Cache_Storage_Base
{
/**
* HashTable object.
*
* @var Horde_HashTable
*/
protected $_hash;
/**
* @param array $params Additional parameters:
* <pre>
* - hashtable: (Horde_HashTable) [REQUIRED] A Horde_HashTable object.
* - prefix: (string) The prefix to use for the cache keys.
* DEFAULT: ''
* </pre>
*/
public function __construct(array $params = array())
{
if (!isset($params['hashtable'])) {
throw new InvalidArgumentException('Missing hashtable parameter.');
}
parent::__construct(array_merge(array(
'prefix' => ''
), $params));
}
/**
*/
protected function _initOb()
{
$this->_hash = $this->_params['hashtable'];
}
/**
*/
public function get($key, $lifetime = 0)
{
$dkey = $this->_getKey($key);
$query = array($dkey);
if ($lifetime) {
$query[] = $lkey = $this->_getKey($key, true);
}
$res = $this->_hash->get($query);
if ($lifetime &&
(!$res[$lkey] || (($lifetime + $res[$lkey]) < time()))) {
return false;
}
return $res[$dkey];
}
/**
*/
public function set($key, $data, $lifetime = 0)
{
$opts = array_filter(array(
'expire' => $lifetime
));
$this->_hash->set($this->_getKey($key), $data, $opts);
$this->_hash->set($this->_getKey($key, true), time(), $opts);
}
/**
*/
public function exists($key, $lifetime = 0)
{
return ($this->get($key, $lifetime) !== false);
}
/**
*/
public function expire($key)
{
$this->_hash->delete(array(
$this->_getKey($key),
$this->_getKey($key, true)
));
}
/**
*/
public function clear()
{
$this->_hash->clear();
}
/**
* Return the hashtable key.
*
* @param string $key Object ID.
* @param boolean $ts Return the timestamp key?
*
* @return string Hashtable key ID.
*/
protected function _getKey($key, $ts = false)
{
return $this->_params['prefix'] . $key . ($ts ? '_t' : '');
}
}
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