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<?php |
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namespace Northwoods\Config; |
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use ReflectionClass; |
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use Psr\Container\ContainerInterface; |
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class Container implements ContainerInterface |
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{ |
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/** |
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* @var ContainerInterface |
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*/ |
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private $diContainer; |
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/** |
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* @var array |
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*/ |
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private $container = []; |
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/** |
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* @var array |
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*/ |
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private $instances = []; |
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public function __construct(ContainerInterface $container) |
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{ |
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$this->diContainer = $container; |
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} |
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public function get($id) |
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{ |
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if (isset($this->instances[$id])) { |
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return $this->instances[$id]; |
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} |
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$className = $this->getContainerValue($id); |
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if (is_callable($className)) { |
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return $className($this->diContainer, $id); |
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} |
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$class = new $className; |
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return $this->instances[$id] = $class($this->diContainer); |
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} |
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public function has($id) |
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{ |
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if (isset($this->instances[$id])) { |
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return true; |
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} |
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return $this->getContainerValue($id) !== null; |
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} |
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protected function getContainerValue($id) |
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{ |
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if (isset($this->container[$id])) { |
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return $this->container[$id]; |
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} |
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foreach ($this->container as $alias => $concrete) { |
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$class = new ReflectionClass($id); |
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if (false === $class) { |
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return null; |
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} |
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do { |
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$name = $class->getName(); |
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if ($alias == $name) { |
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return $concrete; |
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} |
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$interfaces = $class->getInterfaceNames(); |
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if (is_array($interfaces) && in_array($alias, $interfaces)) { |
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return $concrete; |
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} |
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$class = $class->getParentClass(); |
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} while (false !== $class); |
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return null; |
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} |
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return null; |
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} |
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public function add($alias, $className, $target = null) |
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{ |
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if (null === $target) { |
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$target = $className; |
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} else { |
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$this->container[$className] = $target; |
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} |
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$this->container[$alias] = $target; |
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} |
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} |
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northwoods /
config
