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