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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\Validator\Mapping\Loader;
- use Symfony\Component\Validator\Exception\MappingException;
- use Symfony\Component\Validator\Mapping\ClassMetadata;
- /**
- * Loads validation metadata from multiple {@link LoaderInterface} instances.
- *
- * Pass the loaders when constructing the chain. Once
- * {@link loadClassMetadata()} is called, that method will be called on all
- * loaders in the chain.
- *
- * @author Bernhard Schussek <bschussek@gmail.com>
- */
- class LoaderChain implements LoaderInterface
- {
- protected $loaders;
- /**
- * @param LoaderInterface[] $loaders The metadata loaders to use
- *
- * @throws MappingException If any of the loaders has an invalid type
- */
- public function __construct(array $loaders)
- {
- foreach ($loaders as $loader) {
- if (!$loader instanceof LoaderInterface) {
- throw new MappingException(sprintf('Class "%s" is expected to implement LoaderInterface.', get_debug_type($loader)));
- }
- }
- $this->loaders = $loaders;
- }
- /**
- * {@inheritdoc}
- */
- public function loadClassMetadata(ClassMetadata $metadata)
- {
- $success = false;
- foreach ($this->loaders as $loader) {
- $success = $loader->loadClassMetadata($metadata) || $success;
- }
- return $success;
- }
- /**
- * @return LoaderInterface[]
- */
- public function getLoaders()
- {
- return $this->loaders;
- }
- }
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