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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_Server
* @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: Cache.php 20096 2010-01-06 02:05:09Z bkarwin $
*/
/**
* Zend_Server_Cache: cache server definitions
*
* @category Zend
* @package Zend_Server
* @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_Server_Cache
{
/**
* @var array Methods to skip when caching server
*/
protected static $_skipMethods = array();
/**
* Cache a file containing the dispatch list.
*
* Serializes the server definition stores the information
* in $filename.
*
* Returns false on any error (typically, inability to write to file), true
* on success.
*
* @param string $filename
* @param Zend_Server_Interface $server
* @return bool
*/
public static function save($filename, Zend_Server_Interface $server)
{
if (!is_string($filename)
|| (!file_exists($filename) && !is_writable(dirname($filename))))
{
return false;
}
$methods = $server->getFunctions();
if ($methods instanceof Zend_Server_Definition) {
$definition = new Zend_Server_Definition();
foreach ($methods as $method) {
if (in_array($method->getName(), self::$_skipMethods)) {
continue;
}
$definition->addMethod($method);
}
$methods = $definition;
}
if (0 === @file_put_contents($filename, serialize($methods))) {
return false;
}
return true;
}
/**
* Load server definition from a file
*
* Unserializes a stored server definition from $filename. Returns false if
* it fails in any way, true on success.
*
* Useful to prevent needing to build the server definition on each
* request. Sample usage:
*
* <code>
* if (!Zend_Server_Cache::get($filename, $server)) {
* require_once 'Some/Service/Class.php';
* require_once 'Another/Service/Class.php';
*
* // Attach Some_Service_Class with namespace 'some'
* $server->attach('Some_Service_Class', 'some');
*
* // Attach Another_Service_Class with namespace 'another'
* $server->attach('Another_Service_Class', 'another');
*
* Zend_Server_Cache::save($filename, $server);
* }
*
* $response = $server->handle();
* echo $response;
* </code>
*
* @param string $filename
* @param Zend_Server_Interface $server
* @return bool
*/
public static function get($filename, Zend_Server_Interface $server)
{
if (!is_string($filename)
|| !file_exists($filename)
|| !is_readable($filename))
{
return false;
}
if (false === ($dispatch = @file_get_contents($filename))) {
return false;
}
if (false === ($dispatchArray = @unserialize($dispatch))) {
return false;
}
$server->loadFunctions($dispatchArray);
return true;
}
/**
* Remove a cache file
*
* @param string $filename
* @return boolean
*/
public static function delete($filename)
{
if (is_string($filename) && file_exists($filename)) {
unlink($filename);
return true;
}
return false;
}
}
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