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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\Navigation\Service;
use Zend\Navigation\Navigation;
use Zend\ServiceManager\AbstractFactoryInterface;
use Zend\ServiceManager\ServiceLocatorInterface;
/**
* Navigation abstract service factory
*
* Allows configuring several navigation instances. If you have a navigation config key named "special" then you can
* use $serviceLocator->get('Zend\Navigation\Special') to retrieve a navigation instance with this configuration.
*/
final class NavigationAbstractServiceFactory implements AbstractFactoryInterface
{
/**
* Top-level configuration key indicating navigation configuration
*
* @var string
*/
const CONFIG_KEY = 'navigation';
/**
* Service manager factory prefix
*
* @var string
*/
const SERVICE_PREFIX = 'Zend\Navigation\\';
/**
* Normalized name prefix
*/
const NAME_PREFIX = 'zendnavigation';
/**
* Navigation configuration
*
* @var array
*/
protected $config;
/**
* Can we create a navigation by the requested name?
*
* @param ServiceLocatorInterface $serviceLocator
* @param string $name Service name (as resolved by ServiceManager)
* @param string $requestedName Name by which service was requested, must start with Zend\Navigation\
* @return bool
*/
public function canCreateServiceWithName(ServiceLocatorInterface $serviceLocator, $name, $requestedName)
{
if (0 !== strpos($name, self::NAME_PREFIX)) {
return false;
}
$config = $this->getConfig($serviceLocator);
return (!empty($config[$this->getConfigName($name)]));
}
/**
* Create a navigation container
*
* @param ServiceLocatorInterface $serviceLocator
* @param string $name Service name (as resolved by ServiceManager)
* @param string $requestedName Name by which service was requested
* @return Navigation
*/
public function createServiceWithName(ServiceLocatorInterface $serviceLocator, $name, $requestedName)
{
$config = $this->getConfig($serviceLocator);
$factory = new ConstructedNavigationFactory($config[$this->getConfigName($name)]);
return $factory->createService($serviceLocator);
}
/**
* Get navigation configuration, if any
*
* @param ServiceLocatorInterface $services
* @return array
*/
protected function getConfig(ServiceLocatorInterface $services)
{
if ($this->config !== null) {
return $this->config;
}
if (!$services->has('Config')) {
$this->config = array();
return $this->config;
}
$config = $services->get('Config');
if (!isset($config[self::CONFIG_KEY])
|| !is_array($config[self::CONFIG_KEY])
) {
$this->config = array();
return $this->config;
}
$this->config = $config[self::CONFIG_KEY];
return $this->config;
}
/**
* Extract config name from service name
*
* @param string $name
* @return string
*/
protected function getConfigName($name)
{
return substr($name, strlen(self::NAME_PREFIX));
}
}
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