Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Symfony\Component\Serializer\Mapping\Loader;
Chris@0: 
Chris@0: use Symfony\Component\Config\Util\XmlUtils;
Chris@0: use Symfony\Component\Serializer\Exception\MappingException;
Chris@0: use Symfony\Component\Serializer\Mapping\AttributeMetadata;
Chris@0: use Symfony\Component\Serializer\Mapping\ClassMetadataInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Loads XML mapping files.
Chris@0:  *
Chris@0:  * @author Kévin Dunglas <dunglas@gmail.com>
Chris@0:  */
Chris@0: class XmlFileLoader extends FileLoader
Chris@0: {
Chris@0:     /**
Chris@0:      * An array of {@class \SimpleXMLElement} instances.
Chris@0:      *
Chris@0:      * @var \SimpleXMLElement[]|null
Chris@0:      */
Chris@0:     private $classes;
Chris@0: 
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     public function loadClassMetadata(ClassMetadataInterface $classMetadata)
Chris@0:     {
Chris@0:         if (null === $this->classes) {
Chris@0:             $this->classes = $this->getClassesFromXml();
Chris@0:         }
Chris@0: 
Chris@0:         if (!$this->classes) {
Chris@0:             return false;
Chris@0:         }
Chris@0: 
Chris@0:         $attributesMetadata = $classMetadata->getAttributesMetadata();
Chris@0: 
Chris@0:         if (isset($this->classes[$classMetadata->getName()])) {
Chris@0:             $xml = $this->classes[$classMetadata->getName()];
Chris@0: 
Chris@0:             foreach ($xml->attribute as $attribute) {
Chris@0:                 $attributeName = (string) $attribute['name'];
Chris@0: 
Chris@0:                 if (isset($attributesMetadata[$attributeName])) {
Chris@0:                     $attributeMetadata = $attributesMetadata[$attributeName];
Chris@0:                 } else {
Chris@0:                     $attributeMetadata = new AttributeMetadata($attributeName);
Chris@0:                     $classMetadata->addAttributeMetadata($attributeMetadata);
Chris@0:                 }
Chris@0: 
Chris@0:                 foreach ($attribute->group as $group) {
Chris@0:                     $attributeMetadata->addGroup((string) $group);
Chris@0:                 }
Chris@0: 
Chris@0:                 if (isset($attribute['max-depth'])) {
Chris@0:                     $attributeMetadata->setMaxDepth((int) $attribute['max-depth']);
Chris@0:                 }
Chris@0:             }
Chris@0: 
Chris@0:             return true;
Chris@0:         }
Chris@0: 
Chris@0:         return false;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Return the names of the classes mapped in this file.
Chris@0:      *
Chris@0:      * @return string[] The classes names
Chris@0:      */
Chris@0:     public function getMappedClasses()
Chris@0:     {
Chris@0:         if (null === $this->classes) {
Chris@0:             $this->classes = $this->getClassesFromXml();
Chris@0:         }
Chris@0: 
Chris@0:         return array_keys($this->classes);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Parses a XML File.
Chris@0:      *
Chris@0:      * @param string $file Path of file
Chris@0:      *
Chris@0:      * @return \SimpleXMLElement
Chris@0:      *
Chris@0:      * @throws MappingException
Chris@0:      */
Chris@0:     private function parseFile($file)
Chris@0:     {
Chris@0:         try {
Chris@0:             $dom = XmlUtils::loadFile($file, __DIR__.'/schema/dic/serializer-mapping/serializer-mapping-1.0.xsd');
Chris@0:         } catch (\Exception $e) {
Chris@0:             throw new MappingException($e->getMessage(), $e->getCode(), $e);
Chris@0:         }
Chris@0: 
Chris@0:         return simplexml_import_dom($dom);
Chris@0:     }
Chris@0: 
Chris@0:     private function getClassesFromXml()
Chris@0:     {
Chris@0:         $xml = $this->parseFile($this->file);
Chris@17:         $classes = [];
Chris@0: 
Chris@0:         foreach ($xml->class as $class) {
Chris@0:             $classes[(string) $class['name']] = $class;
Chris@0:         }
Chris@0: 
Chris@0:         return $classes;
Chris@0:     }
Chris@0: }