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<?php |
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namespace TheCodingMachine\GraphQL\Controllers\Containers; |
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use function class_exists; |
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use Psr\Container\ContainerExceptionInterface; |
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use Psr\Container\ContainerInterface; |
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use Psr\Container\NotFoundExceptionInterface; |
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use GraphQL\Type\Definition\ObjectType; |
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/** |
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* The BasicAutoWiringContainer is a container wrapper that will automatically instantiate classes that have |
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* no constructor arguments. |
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*/ |
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class BasicAutoWiringContainer 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 $container; |
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/** |
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* @var ObjectType[] |
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*/ |
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private $values = []; |
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/** |
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* @param ContainerInterface $container The proxied container. |
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*/ |
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public function __construct(ContainerInterface $container) |
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{ |
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$this->container = $container; |
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} |
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/** |
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* Finds an entry of the container by its identifier and returns it. |
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* |
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* @param string $id Identifier of the entry to look for. |
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* |
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* @throws NotFoundExceptionInterface No entry was found for **this** identifier. |
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* @throws ContainerExceptionInterface Error while retrieving the entry. |
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* |
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* @return mixed Entry. |
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*/ |
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public function get($id) |
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{ |
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if (isset($this->values[$id])) { |
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return $this->values[$id]; |
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} |
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if ($this->container->has($id)) { |
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return $this->container->get($id); |
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} |
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// The container will try to instantiate the type if the class exists and has an annotation. |
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if (class_exists($id)) { |
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$refTypeClass = new \ReflectionClass($id); |
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if ($refTypeClass->hasMethod('__construct') && $refTypeClass->getMethod('__construct')->getNumberOfRequiredParameters() > 0) { |
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throw NotFoundException::notFoundInContainer($id); |
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} |
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$this->values[$id] = new $id(); |
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return $this->values[$id]; |
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} |
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throw NotFoundException::notFound($id); |
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} |
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/** |
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* Returns true if the container can return an entry for the given identifier. |
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* Returns false otherwise. |
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* |
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* `has($id)` returning true does not mean that `get($id)` will not throw an exception. |
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* It does however mean that `get($id)` will not throw a `NotFoundExceptionInterface`. |
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* |
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* @param string $id Identifier of the entry to look for. |
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* |
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* @return bool |
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*/ |
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public function has($id) |
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{ |
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if (isset($this->values[$id])) { |
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return true; |
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} |
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if ($this->container->has($id)) { |
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return true; |
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} |
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if (class_exists($id)) { |
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$refTypeClass = new \ReflectionClass($id); |
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return !($refTypeClass->hasMethod('__construct') && $refTypeClass->getMethod('__construct')->getNumberOfRequiredParameters() > 0); |
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} |
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return false; |
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} |
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} |
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thecodingmachine /
graphql-controllers
