Classes List

Symfony\Component\Serializer\Mapping\Loader\LoaderChain

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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\Serializer\Mapping\Loader;

use Symfony\Component\Serializer\Exception\MappingException;
use Symfony\Component\Serializer\Mapping\ClassMetadataInterface;

/** * Calls multiple {@link LoaderInterface} instances in a chain. * * This class accepts multiple instances of LoaderInterface to be passed to the * constructor. When {@link loadClassMetadata()} is called, the same method is called * in <em>all</em> of these loaders, regardless of whether any of them was * successful or not. * * @author Bernhard Schussek <bschussek@gmail.com> * @author Kévin Dunglas <dunglas@gmail.com> */
class LoaderChain implements LoaderInterface
{
    private $loaders;

    /** * Accepts a list of LoaderInterface instances. * * @param LoaderInterface[] $loaders An array of LoaderInterface instances * * @throws MappingException If any of the loaders does not implement LoaderInterface */
    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_class($loader)));
            }
        }

        $this->loaders = $loaders;
    }

    /** * {@inheritdoc} */
    public function loadClassMetadata(ClassMetadataInterface $metadata)
    {
        $success = false;

        foreach ($this->loaders as $loader) {
            $success = $loader->loadClassMetadata($metadata|| $success;
        }

        return $success;
    }

    /** * @return LoaderInterface[] */
    public function getLoaders()
    {
        return $this->loaders;
    }
}