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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Serializer
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Serializer.php 20575 2010-01-24 17:48:27Z mabe $
*/
/** @see Zend_Loader_PluginLoader */
require_once 'Zend/Loader/PluginLoader.php';
/**
* @category Zend
* @package Zend_Serializer
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Serializer
{
/**
* Plugin loader to load adapter.
*
* @var null|Zend_Loader_PluginLoader
*/
private static $_adapterLoader = null;
/**
* The default adapter.
*
* @var string|Zend_Serializer_AdapterInterface
*/
protected static $_defaultAdapter = 'PhpSerialize';
/**
* Create a serializer adapter instance.
*
* @param string|Zend_Serializer_Adapter_AdapterInterface $adapterName Name of the adapter class
* @param array |Zend_Config $opts Serializer options
* @return Zend_Serializer_Adapter_AdapterInterface
*/
public static function factory($adapterName, $opts = array())
{
if ($adapterName instanceof Zend_Serializer_Adapter_AdapterInterface) {
return $adapterName; // $adapterName is already an adapter object
}
$adapterLoader = self::getAdapterLoader();
try {
$adapterClass = $adapterLoader->load($adapterName);
} catch (Exception $e) {
require_once 'Zend/Serializer/Exception.php';
throw new Zend_Serializer_Exception('Can\'t load serializer adapter "'.$adapterName.'"', 0, $e);
}
// ZF-8842:
// check that the loaded class implements Zend_Serializer_Adapter_AdapterInterface without execute code
if (!in_array('Zend_Serializer_Adapter_AdapterInterface', class_implements($adapterClass))) {
require_once 'Zend/Serializer/Exception.php';
throw new Zend_Serializer_Exception('The serializer adapter class "'.$adapterClass.'" must implement Zend_Serializer_Adapter_AdapterInterface');
}
return new $adapterClass($opts);
}
/**
* Get the adapter plugin loader.
*
* @return Zend_Loader_PluginLoader
*/
public static function getAdapterLoader()
{
if (self::$_adapterLoader === null) {
self::$_adapterLoader = self::_getDefaultAdapterLoader();
}
return self::$_adapterLoader;
}
/**
* Change the adapter plugin load.
*
* @param Zend_Loader_PluginLoader $pluginLoader
* @return void
*/
public static function setAdapterLoader(Zend_Loader_PluginLoader $pluginLoader)
{
self::$_adapterLoader = $pluginLoader;
}
/**
* Resets the internal adapter plugin loader
*
* @return Zend_Loader_PluginLoader
*/
public static function resetAdapterLoader()
{
self::$_adapterLoader = self::_getDefaultAdapterLoader();
return self::$_adapterLoader;
}
/**
* Returns a default adapter plugin loader
*
* @return Zend_Loader_PluginLoader
*/
protected static function _getDefaultAdapterLoader()
{
$loader = new Zend_Loader_PluginLoader();
$loader->addPrefixPath('Zend_Serializer_Adapter', dirname(__FILE__).'/Serializer/Adapter');
return $loader;
}
/**
* Change the default adapter.
*
* @param string|Zend_Serializer_Adapter_AdapterInterface $adapter
* @param array|Zend_Config $options
*/
public static function setDefaultAdapter($adapter, $options = array())
{
self::$_defaultAdapter = self::factory($adapter, $options);
}
/**
* Get the default adapter.
*
* @return Zend_Serializer_Adapter_AdapterInterface
*/
public static function getDefaultAdapter()
{
if (!self::$_defaultAdapter instanceof Zend_Serializer_Adapter_AdapterInterface) {
self::setDefaultAdapter(self::$_defaultAdapter);
}
return self::$_defaultAdapter;
}
/**
* Generates a storable representation of a value using the default adapter.
*
* @param mixed $value
* @param array $options
* @return string
* @throws Zend_Serializer_Exception
*/
public static function serialize($value, array $options = array())
{
if (isset($options['adapter'])) {
$adapter = self::factory($options['adapter']);
unset($options['adapter']);
} else {
$adapter = self::getDefaultAdapter();
}
return $adapter->serialize($value, $options);
}
/**
* Creates a PHP value from a stored representation using the default adapter.
*
* @param string $serialized
* @param array $options
* @return mixed
* @throws Zend_Serializer_Exception
*/
public static function unserialize($serialized, array $options = array())
{
if (isset($options['adapter'])) {
$adapter = self::factory($options['adapter']);
unset($options['adapter']);
} else {
$adapter = self::getDefaultAdapter();
}
return $adapter->unserialize($serialized, $options);
}
}
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