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<?php |
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/** |
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* Copyright (C) 2018 Gerrit Addiks. |
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* This package (including this file) was released under the terms of the GPL-3.0. |
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* You should have received a copy of the GNU General Public License along with this program. |
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* If not, see <http://www.gnu.org/licenses/> or send me a mail so i can send you a copy. |
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* @license GPL-3.0 |
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* @author Gerrit Addiks <[email protected]> |
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*/ |
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namespace Addiks\RDMBundle\DataLoader; |
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use InvalidArgumentException; |
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use Symfony\Component\DependencyInjection\ContainerInterface; |
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use Addiks\RDMBundle\DataLoader\DataLoaderInterface; |
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use Addiks\RDMBundle\DataLoader\DataLoaderFactoryInterface; |
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use ErrorException; |
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/** |
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* A simple data-loader-factory that chooses which data-loader to create using a parameter from the container. |
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*/ |
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final class ChoosingDataLoaderFactory implements DataLoaderFactoryInterface |
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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 string |
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*/ |
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private $serviceId; |
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public function __construct( |
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ContainerInterface $container, |
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array $serviceIdMap, |
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string $choosingParameterName, |
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string $defaultServiceId |
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) { |
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if ($container->hasParameter($choosingParameterName)) { |
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/** @var string $determinator */ |
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$determinator = $container->getParameter($choosingParameterName); |
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if (!isset($serviceIdMap[$determinator])) { |
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throw new InvalidArgumentException(sprintf( |
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"Invalid value '%s' for parameter '%s', allowed values are: %s", |
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$determinator, |
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$choosingParameterName, |
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implode(", ", array_keys($serviceIdMap)) |
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)); |
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} |
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$serviceId = $serviceIdMap[$determinator]; |
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} else { |
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/** @var string $serviceId */ |
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$serviceId = $defaultServiceId; |
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} |
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# Spot errors early (this should not actually load the service) |
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if (!$container->has($serviceId)) { |
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throw new InvalidArgumentException(sprintf( |
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"The specified service '%s' does not exist!", |
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$serviceId |
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)); |
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} |
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$this->container = $container; |
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$this->serviceId = $serviceId; |
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} |
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public function createDataLoader(): DataLoaderInterface |
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{ |
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/** @var object $dataLoader */ |
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$dataLoader = $this->container->get($this->serviceId); |
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if (!$dataLoader instanceof DataLoaderInterface) { |
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throw new ErrorException(sprintf( |
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"Expected service with id '%s' to be of type %s!", |
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$this->serviceId, |
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DataLoaderInterface::class |
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)); |
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} |
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return $dataLoader; |
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} |
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} |
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addiks /
symfony_rdm
