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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Session\Service;
use Interop\Container\ContainerInterface;
use Zend\ServiceManager\AbstractFactoryInterface;
use Zend\ServiceManager\ServiceLocatorInterface;
use Zend\Session\Container;
use Zend\Session\ManagerInterface;
/**
* Session container abstract service factory.
*
* Allows creating Container instances, using the ManagerInterface
* if present. Containers are named in a "session_containers" array in the
* Config service:
*
* <code>
* return array(
* 'session_containers' => array(
* 'SessionContainer\sample',
* 'my_sample_session_container',
* 'MySessionContainer',
* ),
* );
* </code>
*
* <code>
* $container = $services->get('MySessionContainer');
* </code>
*/
class ContainerAbstractServiceFactory implements AbstractFactoryInterface
{
/**
* Cached container configuration
*
* @var array
*/
protected $config;
/**
* Configuration key in which session containers live
*
* @var string
*/
protected $configKey = 'session_containers';
/**
* @var ManagerInterface
*/
protected $sessionManager;
/**
* Can we create an instance of the given service? (v3 usage).
*
* @param ContainerInterface $container
* @param string $requestedName
* @return bool
*/
public function canCreate(ContainerInterface $container, $requestedName)
{
$config = $this->getConfig($container);
if (empty($config)) {
return false;
}
$containerName = $this->normalizeContainerName($requestedName);
return array_key_exists($containerName, $config);
}
/**
* Can we create an instance of the given service? (v2 usage)
*
* @param ServiceLocatorInterface $container
* @param string $name
* @param string $requestedName
* @return bool
*/
public function canCreateServiceWithName(ServiceLocatorInterface $container, $name, $requestedName)
{
return $this->canCreate($container, $requestedName);
}
/**
* Create and return a named container (v3 usage).
*
* @param ContainerInterface $container
* @param string $requestedName
* @return Container
*/
public function __invoke(ContainerInterface $container, $requestedName, array $options = null)
{
$manager = $this->getSessionManager($container);
return new Container($requestedName, $manager);
}
/**
* Create and return a named container (v2 usage).
*
* @param ContainerInterface $container
* @param string $requestedName
* @return Container
*/
public function createServiceWithName(ServiceLocatorInterface $container, $name, $requestedName)
{
return $this($container, $requestedName);
}
/**
* Retrieve config from service locator, and cache for later
*
* @param ContainerInterface $container
* @return false|array
*/
protected function getConfig(ContainerInterface $container)
{
if (null !== $this->config) {
return $this->config;
}
if (! $container->has('config')) {
$this->config = [];
return $this->config;
}
$config = $container->get('config');
if (! isset($config[$this->configKey]) || ! is_array($config[$this->configKey])) {
$this->config = [];
return $this->config;
}
$config = $config[$this->configKey];
$config = array_flip($config);
$this->config = array_change_key_case($config);
return $this->config;
}
/**
* Retrieve the session manager instance, if any
*
* @param ContainerInterface $container
* @return null|ManagerInterface
*/
protected function getSessionManager(ContainerInterface $container)
{
if ($this->sessionManager !== null) {
return $this->sessionManager;
}
if ($container->has(ManagerInterface::class)) {
$this->sessionManager = $container->get(ManagerInterface::class);
}
return $this->sessionManager;
}
/**
* Normalize the container name in order to perform a lookup
*
* @param string $name
* @return string
*/
protected function normalizeContainerName($name)
{
return strtolower($name);
}
}