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<?php declare(strict_types = 1); |
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namespace Venta\Container; |
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use Closure; |
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use InvalidArgumentException; |
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use Venta\Contracts\Container\Invoker as InvokerContract; |
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use Venta\Contracts\Container\MutableContainer as MutableContainerContract; |
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use Venta\Contracts\Container\ServiceDecorator as ServiceDecoratorContract; |
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use Venta\Contracts\Container\ServiceInflector as ServiceInflectorContract; |
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/** |
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* Class MutableContainer |
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* |
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* @package Venta\Container |
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*/ |
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class MutableContainer extends AbstractContainer implements MutableContainerContract |
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{ |
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/** |
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* @var ServiceDecoratorContract |
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*/ |
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private $decorator; |
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/** |
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* @var ServiceInflectorContract |
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*/ |
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private $inflector; |
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/** |
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* @inheritDoc |
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*/ |
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public function __construct() |
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{ |
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$resolver = new ArgumentResolver($this); |
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parent::__construct($resolver); |
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$this->setInflector(new ServiceInflector($resolver)); |
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$this->setDecorator(new ServiceDecorator($this, $this->inflector, $this->invoker())); |
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$this->bindInstance(InvokerContract::class, $this->invoker()); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function bind(string $id, $service) |
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{ |
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if (is_string($service)) { |
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$this->bindClass($id, $service); |
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} elseif (is_object($service)) { |
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$this->bindInstance($id, $service); |
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} else { |
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throw new InvalidArgumentException('Invalid service provided. Class name or instance expected.'); |
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} |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function decorate(string $id, $decorator) |
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{ |
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$id = $this->normalize($id); |
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// Check if correct id is provided. |
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if (!$this->isResolvableService($id)) { |
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throw new InvalidArgumentException('Invalid id provided.'); |
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} |
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$this->decorator->add($id, $decorator); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function factory(string $id, $callable, $shared = false) |
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{ |
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$reflectedCallable = new Invokable($callable); |
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if (!$this->isResolvableCallable($reflectedCallable)) { |
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throw new InvalidArgumentException('Invalid callable provided.'); |
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} |
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$this->register($id, $shared, function ($id) use ($reflectedCallable) { |
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$this->callableDefinitions[$id] = $reflectedCallable; |
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}); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function inflect(string $id, string $method, array $arguments = []) |
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{ |
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$this->inflector->add($id, $method, $arguments); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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protected function instantiateService(string $id, array $arguments) |
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{ |
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$object = parent::instantiateService($id, $arguments); |
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$this->inflector->apply($object); |
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return $this->decorator->apply($id, $object, $this->isShared($id)); |
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} |
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/** |
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* @param ServiceDecoratorContract $decorator |
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*/ |
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protected function setDecorator(ServiceDecoratorContract $decorator) |
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{ |
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$this->decorator = $decorator; |
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} |
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/** |
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* @param ServiceInflectorContract $inflector |
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*/ |
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protected function setInflector(ServiceInflectorContract $inflector) |
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{ |
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$this->inflector = $inflector; |
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} |
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/** |
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* @param string $id |
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* @param string $class |
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* @return void |
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* @throws InvalidArgumentException |
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*/ |
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private function bindClass(string $id, string $class) |
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{ |
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if (!$this->isResolvableService($class)) { |
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throw new InvalidArgumentException(sprintf('Class "%s" does not exist.', $class)); |
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} |
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$this->register($id, true, function ($id) use ($class) { |
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$this->classDefinitions[$id] = $class; |
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}); |
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} |
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/** |
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* @param string $id |
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* @param object $instance |
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* @return void |
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* @throws InvalidArgumentException |
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*/ |
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private function bindInstance(string $id, $instance) |
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{ |
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if (!$this->isConcrete($instance)) { |
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throw new InvalidArgumentException('Invalid instance provided.'); |
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} |
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$this->register($id, true, function ($id) use ($instance) { |
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$this->instances[$id] = $instance; |
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}); |
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} |
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/** |
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* Check if subject service is an object instance. |
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* |
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* @param mixed $service |
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* @return bool |
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*/ |
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private function isConcrete($service): bool |
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{ |
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return is_object($service) && !$service instanceof Closure; |
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} |
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/** |
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* Verifies that provided callable can be called by service container. |
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* |
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* @param Invokable $reflectedCallable |
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* @return bool |
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*/ |
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private function isResolvableCallable(Invokable $reflectedCallable): bool |
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{ |
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// If array represents callable we need to be sure it's an object or a resolvable service id. |
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$callable = $reflectedCallable->callable(); |
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return $reflectedCallable->isFunction() |
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|| is_object($callable[0]) |
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|| $this->isResolvableService($callable[0]); |
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} |
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/** |
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* Registers binding. |
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* After this method call binding can be resolved by container. |
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* |
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* @param string $id |
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* @param bool $shared |
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* @param Closure $registrationCallback |
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* @return void |
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*/ |
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private function register(string $id, bool $shared, Closure $registrationCallback) |
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{ |
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// Check if correct service is provided. |
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$this->validateId($id); |
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$id = $this->normalize($id); |
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// Clean up previous bindings, if any. |
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unset($this->instances[$id], $this->shared[$id], $this->keys[$id]); |
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// Register service with provided callback. |
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$registrationCallback($id); |
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// Mark service as shared when needed. |
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$this->shared[$id] = $shared ?: null; |
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// Save service key to make it recognizable by container. |
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$this->keys[$id] = true; |
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} |
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/** |
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* Validate service identifier. Throw an Exception in case of invalid value. |
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* |
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* @param string $id |
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* @return void |
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* @throws InvalidArgumentException |
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*/ |
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private function validateId(string $id) |
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{ |
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if (!interface_exists($id) && !class_exists($id)) { |
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throw new InvalidArgumentException( |
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sprintf('Invalid service id "%s". Service id must be an existing interface or class name.', $id) |
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); |
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} |
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} |
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} |
venta /
framework
