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<?php |
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/** |
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* @author PhileCMS |
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* @link https://github.com/PhileCMS/Phile |
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* @license http://opensource.org/licenses/MIT |
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*/ |
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namespace Phile\Core; |
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use Psr\Container\ContainerInterface; |
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use Phile\Exception\ContainerNotFoundException as NotFoundException; |
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/** |
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* Implements a simple PSR-11 container |
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*/ |
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class Container implements ContainerInterface |
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{ |
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protected $config = []; |
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/** @var ContainerInterface */ |
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protected static $instance; |
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/** @var array raw items */ |
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protected $raw = []; |
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/** @var evaluated items */ |
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protected $build = []; |
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public function __construct($config = []) |
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{ |
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$this->config = $config; |
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} |
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/** |
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* Sets instance for static usage |
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* |
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* @param ContainerInterface $instance |
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*/ |
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public static function setInstance(ContainerInterface $instance) |
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{ |
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self::$instance = $instance; |
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} |
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/** |
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* Gets instance for static usage |
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* |
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* @return ContainerInterface |
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*/ |
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public static function getInstance() |
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{ |
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return self::$instance; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function has($id) |
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{ |
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return array_key_exists($id, $this->raw); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function get($id) |
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{ |
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if (!$this->has($id)) { |
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throw new NotFoundException( |
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sprintf('Item "%s" not found in Container.', $id), |
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1 |
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1519111836 |
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); |
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} |
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if (!is_callable($this->raw[$id])) { |
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return $this->raw[$id]; |
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} |
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if (!isset($this->build[$id])) { |
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$this->build[$id] = call_user_func($this->raw[$id], $this); |
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$this->typeCheck($id, $this->build[$id]); |
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} |
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return $this->build[$id]; |
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} |
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/** |
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* Set an object |
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* |
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* @param string $id Identifier for the object to set |
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* @param type $object Object to set |
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*/ |
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public function set($id, $object) |
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{ |
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if (!is_callable($object)) { |
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$this->typeCheck($id, $object); |
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} |
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$this->raw[$id] = $object; |
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} |
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/** |
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* Check object-type matches required type for that ID |
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* |
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* @param string $id |
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* @param mixed $object |
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* @return void |
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* @throws \Phile\Exception\ContainerException |
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*/ |
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protected function typeCheck($id, $object) |
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{ |
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if (!isset($this->config['types'][$id])) { |
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return; |
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} |
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$requirement = $this->config['types'][$id]; |
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if (get_class($object) === $requirement || is_subclass_of($object, $requirement)) { |
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return; |
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} |
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$msg = sprintf('The Container-item "%s" must implement the interface: "%s"', $id, $requirement); |
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throw new \Phile\Exception\ContainerException($msg, 1398536617); |
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} |
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} |
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PhileCMS /
Phile
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