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<?php |
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/** |
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* WebHemi. |
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* |
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* PHP version 7.1 |
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* |
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* @copyright 2012 - 2017 Gixx-web (http://www.gixx-web.com) |
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* @license https://opensource.org/licenses/MIT The MIT License (MIT) |
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* |
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* @link http://www.gixx-web.com |
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*/ |
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declare(strict_types = 1); |
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namespace WebHemi\DependencyInjection\ServiceAdapter\Base; |
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use Exception; |
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use ReflectionClass; |
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use Throwable; |
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use InvalidArgumentException; |
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use RuntimeException; |
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use WebHemi\Configuration\ServiceInterface as ConfigurationInterface; |
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use WebHemi\DependencyInjection\ServiceInterface; |
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use WebHemi\DependencyInjection\ServiceAdapter\AbstractAdapter; |
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/** |
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* Class ServiceAdapter. |
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*/ |
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class ServiceAdapter extends AbstractAdapter |
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{ |
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/** @var array */ |
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private $container = []; |
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/** |
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* ServiceAdapter constructor. |
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* |
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* @param ConfigurationInterface $configuration |
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*/ |
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public function __construct(ConfigurationInterface $configuration) |
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{ |
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parent::__construct($configuration); |
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} |
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/** |
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* Returns true if the given service is registered. |
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* |
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* @param string $identifier |
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* @return bool |
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*/ |
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public function has(string $identifier) : bool |
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{ |
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return isset($this->container[$identifier]) |
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|| isset($this->serviceLibrary[$identifier]) |
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|| class_exists($identifier); |
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} |
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/** |
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* Gets a service. |
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* |
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* @param string $identifier |
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* @throws RuntimeException |
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* @return object |
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*/ |
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public function get(string $identifier) |
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{ |
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// Not registered but valid class name, so register it |
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if (!isset($this->serviceLibrary[$identifier]) && class_exists($identifier)) { |
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$this->registerService($identifier); |
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} |
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// The service is registered in the library but not in the container, so register it into the container too. |
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if (!isset($this->container[$identifier])) { |
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$this->registerServiceToContainer($identifier); |
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} |
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try { |
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$service = $this->serviceLibrary[$identifier][self::SERVICE_SHARE] |
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? $this->container[$identifier] |
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: clone $this->container[$identifier]; |
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} catch (Throwable $exception) { |
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throw new RuntimeException( |
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sprintf('There was an issue during creating the object: %s', $exception->getMessage()), |
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1000, |
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$exception |
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); |
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} |
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return $service; |
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} |
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/** |
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* Registers the service into the container AKA create the instance. |
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* |
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* @param string $identifier |
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* @return ServiceAdapter |
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*/ |
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private function registerServiceToContainer(string $identifier) : ServiceAdapter |
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{ |
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// At this point the service must be in the library |
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if (!isset($this->serviceLibrary[$identifier])) { |
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throw new InvalidArgumentException( |
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sprintf('Invalid service name: %s, service is not in the library.', $identifier), |
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1000 |
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); |
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} |
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try { |
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// Check arguments. |
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$argumentList = $this |
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->setArgumentListReferences($this->serviceLibrary[$identifier][self::SERVICE_ARGUMENTS]); |
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// Create new instance. |
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$className = $this->serviceLibrary[$identifier][self::SERVICE_CLASS]; |
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$reflectionClass = new ReflectionClass($className); |
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$serviceInstance = $reflectionClass->newInstanceArgs($argumentList); |
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// Perform post init method calls. |
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foreach ($this->serviceLibrary[$identifier][self::SERVICE_METHOD_CALL] as $methodCallList) { |
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$method = $methodCallList[0]; |
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$argumentList = $this->setArgumentListReferences($methodCallList[1] ?? []); |
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call_user_func_array([$serviceInstance, $method], $argumentList); |
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} |
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// Register sevice. |
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$this->container[$identifier] = $serviceInstance; |
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// Mark as initialized. |
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$this->serviceLibrary[$identifier][self::SERVICE_INITIALIZED] = true; |
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} catch (Throwable $exception) { |
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throw new RuntimeException( |
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sprintf('There was an issue during creating the object: %s', $exception->getMessage()), |
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1001, |
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$exception |
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); |
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} |
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return $this; |
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} |
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/** |
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* Tries to identify referce services in the argument list. |
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* |
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* @param array $argumentList |
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* @return array |
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*/ |
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private function setArgumentListReferences(array $argumentList) : array |
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{ |
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foreach ($argumentList as $key => &$value) { |
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// Associative array keys marks literal values |
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if (!is_numeric($key)) { |
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continue; |
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} |
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// Try to get the service. If exists (or can be registered), then it can be referenced too. |
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try { |
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$value = $this->get($value); |
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} catch (Exception $e) { |
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// Not a valid service: no action, go on; |
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continue; |
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} |
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} |
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return $argumentList; |
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} |
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/** |
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* Register the service object instance. |
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* |
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* @param string $identifier |
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* @param object $serviceInstance |
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* @return ServiceInterface |
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*/ |
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public function registerServiceInstance(string $identifier, $serviceInstance) : ServiceInterface |
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{ |
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// Check if the service is not initialized yet. |
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if (!$this->serviceIsInitialized($identifier)) { |
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$instanceType = gettype($serviceInstance); |
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// Register synthetic services |
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if ('object' !== $instanceType) { |
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throw new InvalidArgumentException( |
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sprintf('The second parameter must be an object instance, %s given.', $instanceType), |
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1001 |
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); |
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} |
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// Register sevice. |
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$this->container[$identifier] = $serviceInstance; |
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// Overwrite any previous settings. |
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$this->serviceLibrary[$identifier] = [ |
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self::SERVICE_INITIALIZED => true, |
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self::SERVICE_ARGUMENTS => [], |
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self::SERVICE_METHOD_CALL => [], |
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self::SERVICE_SHARE => true, |
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self::SERVICE_CLASS => get_class($serviceInstance), |
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]; |
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} |
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return $this; |
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} |
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} |
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Gixx /
WebHemi
