123 lines
2.4 KiB
PHP
123 lines
2.4 KiB
PHP
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<?php
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/**
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* @package Joomla.Platform
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* @subpackage Cache
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*
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* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE
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*/
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defined('JPATH_PLATFORM') or die;
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/**
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* Joomla Cache output type object
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*
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* @package Joomla.Platform
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* @subpackage Cache
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* @since 11.1
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*/
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class JCacheControllerOutput extends JCacheController
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{
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/**
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* @since 11.1
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*/
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protected $_id;
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/**
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* @since 11.1
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*/
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protected $_group;
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/**
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* @since 11.1
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*/
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protected $_locktest = null;
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/**
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* Start the cache
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*
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* @param string $id The cache data id
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* @param string $group The cache data group
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*
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* @return boolean True if the cache is hit (false else)
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*
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* @since 11.1
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*/
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public function start($id, $group = null)
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{
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// If we have data in cache use that.
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$data = $this->cache->get($id, $group);
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$this->_locktest = new stdClass;
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$this->_locktest->locked = null;
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$this->_locktest->locklooped = null;
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if ($data === false)
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{
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$this->_locktest = $this->cache->lock($id, $group);
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if ($this->_locktest->locked == true && $this->_locktest->locklooped == true)
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{
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$data = $this->cache->get($id, $group);
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}
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}
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if ($data !== false)
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{
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$data = unserialize(trim($data));
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echo $data;
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if ($this->_locktest->locked == true)
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{
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$this->cache->unlock($id, $group);
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}
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return true;
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}
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else
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{
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// Nothing in cache... let's start the output buffer and start collecting data for next time.
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if ($this->_locktest->locked == false)
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{
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$this->_locktest = $this->cache->lock($id, $group);
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}
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ob_start();
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ob_implicit_flush(false);
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// Set id and group placeholders
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$this->_id = $id;
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$this->_group = $group;
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return false;
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}
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}
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/**
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* Stop the cache buffer and store the cached data
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*
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* @return boolean True if cache stored
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*
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* @since 11.1
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*/
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public function end()
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{
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// Get data from output buffer and echo it
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$data = ob_get_contents();
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ob_end_clean();
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echo $data;
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// Get id and group and reset them placeholders
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$id = $this->_id;
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$group = $this->_group;
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$this->_id = null;
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$this->_group = null;
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// Get the storage handler and store the cached data
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$ret = $this->cache->store(serialize($data), $id, $group);
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if ($this->_locktest->locked == true)
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{
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$this->cache->unlock($id, $group);
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}
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return $ret;
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}
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}
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