67 lines
1.8 KiB
PHP
67 lines
1.8 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Serializer\Mapping\Loader;
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use Symfony\Component\Serializer\Exception\MappingException;
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use Symfony\Component\Serializer\Mapping\ClassMetadataInterface;
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/**
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* Calls multiple {@link LoaderInterface} instances in a chain.
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*
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* This class accepts multiple instances of LoaderInterface to be passed to the
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* constructor. When {@link loadClassMetadata()} is called, the same method is called
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* in <em>all</em> of these loaders, regardless of whether any of them was
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* successful or not.
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*
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* @author Bernhard Schussek <bschussek@gmail.com>
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* @author Kévin Dunglas <dunglas@gmail.com>
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*/
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class LoaderChain implements LoaderInterface
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{
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/**
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* @var LoaderInterface[]
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*/
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private $loaders;
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/**
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* Accepts a list of LoaderInterface instances.
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*
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* @param LoaderInterface[] $loaders An array of LoaderInterface instances
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*
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* @throws MappingException If any of the loaders does not implement LoaderInterface
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*/
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public function __construct(array $loaders)
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{
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foreach ($loaders as $loader) {
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if (!$loader instanceof LoaderInterface) {
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throw new MappingException(sprintf('Class %s is expected to implement LoaderInterface', get_class($loader)));
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}
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}
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$this->loaders = $loaders;
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}
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/**
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* {@inheritdoc}
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*/
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public function loadClassMetadata(ClassMetadataInterface $metadata)
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{
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$success = false;
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foreach ($this->loaders as $loader) {
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$success = $loader->loadClassMetadata($metadata) || $success;
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}
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return $success;
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}
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}
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