/** * @version $Id: cache.class.php 11074 2008-10-13 04:54:12Z ian $ * @package Joomla * @subpackage Cache * @copyright Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved. * @license GNU/GPL, see LICENSE.php * Joomla! is free software. This version may have been modified pursuant * to the GNU General Public License, and as distributed it includes or * is derivative of works licensed under the GNU General Public License or * other free or open source software licenses. * See COPYRIGHT.php for copyright notices and details. */ // no direct access defined( '_JEXEC' ) or die( 'Restricted access' ); /** * Class used to hold Cache data * * @package Joomla * @subpackage Cache * @since 1.5 */ class CacheData extends JObject { /** * An Array of CacheItems indexed by cache group ID * * @access protected * @var Array */ var $_items = null; /** * The cache path * * @access protected * @var String */ var $_path = null; /** * Class constructor * * @access protected */ function __construct( $path ) { $this->_path = $path; $this->_parse(); } /** * Parse $path for cache file groups. Any files identifided as cache are logged * in a group and stored in $this->items. * * @access private * @param String $path */ function _parse() { jimport('joomla.filesystem.folder'); jimport('joomla.filesystem.file'); $folders = JFolder::folders($this->_path); foreach ($folders as $folder) { $files = array(); $files = JFolder::files($this->_path.DS.$folder); $this->_items[$folder] = new CacheItem( $folder ); foreach ($files as $file) { $this->_items[$folder]->updateSize( filesize( $this->_path.DS.$folder.DS.$file )/ 1024 ); } } } /** * Get the number of current Cache Groups * * @access public * @return int */ function getGroupCount() { return count($this->_items); } /** * Retrun an Array containing a sub set of the total * number of Cache Groups as defined by the params. * * @access public * @param Int $start * @param Int $limit * @return Array */ function getRows( $start, $limit ) { $i = 0; $rows = array(); if (!is_array($this->_items)) { return null; } foreach ($this->_items as $item) { if ( (($i >= $start) && ($i < $start+$limit)) || ($limit == 0) ) { $rows[] = $item; } $i++; } return $rows; } /** * Clean out a cache group as named by param. * If no param is passed clean all cache groups. * * @param String $group */ function cleanCache( $group='' ) { $cache =& JFactory::getCache('', 'callback', 'file'); $cache->clean( $group ); } function cleanCacheList( $array ) { foreach ($array as $group) { $this->cleanCache( $group ); } } } /** * This Class is used by CacheData to store group cache data. * * @package Joomla * @subpackage Cache * @since 1.5 */ class CacheItem { var $group = ""; var $size = 0; var $count = 0; function CacheItem ( $group ) { $this->group = $group; } function updateSize( $size ) { $this->size = number_format( $this->size + $size, 2 ); $this->count++; } }
