/
XmlFileLoader.php
135 lines (112 loc) · 3.81 KB
/
XmlFileLoader.php
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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\Config\Util\XmlUtils;
use Symfony\Component\Serializer\Exception\MappingException;
use Symfony\Component\Serializer\Mapping\AttributeMetadata;
use Symfony\Component\Serializer\Mapping\ClassDiscriminatorMapping;
use Symfony\Component\Serializer\Mapping\ClassMetadataInterface;
/**
* Loads XML mapping files.
*
* @author Kévin Dunglas <dunglas@gmail.com>
*/
class XmlFileLoader extends FileLoader
{
/**
* An array of {@class \SimpleXMLElement} instances.
*
* @var \SimpleXMLElement[]|null
*/
private $classes;
/**
* {@inheritdoc}
*/
public function loadClassMetadata(ClassMetadataInterface $classMetadata)
{
if (null === $this->classes) {
$this->classes = $this->getClassesFromXml();
}
if (!$this->classes) {
return false;
}
$attributesMetadata = $classMetadata->getAttributesMetadata();
if (isset($this->classes[$classMetadata->getName()])) {
$xml = $this->classes[$classMetadata->getName()];
foreach ($xml->attribute as $attribute) {
$attributeName = (string) $attribute['name'];
if (isset($attributesMetadata[$attributeName])) {
$attributeMetadata = $attributesMetadata[$attributeName];
} else {
$attributeMetadata = new AttributeMetadata($attributeName);
$classMetadata->addAttributeMetadata($attributeMetadata);
}
foreach ($attribute->group as $group) {
$attributeMetadata->addGroup((string) $group);
}
if (isset($attribute['max-depth'])) {
$attributeMetadata->setMaxDepth((int) $attribute['max-depth']);
}
}
if (isset($xml->{'discriminator-map'})) {
$mapping = array();
foreach ($xml->{'discriminator-map'}->mapping as $element) {
$elementAttributes = $element->attributes();
$mapping[(string) $elementAttributes->type] = (string) $elementAttributes->class;
}
$classMetadata->setClassDiscriminatorMapping(new ClassDiscriminatorMapping(
(string) $xml->{'discriminator-map'}->attributes()->{'type-property'},
$mapping
));
}
return true;
}
return false;
}
/**
* Return the names of the classes mapped in this file.
*
* @return string[] The classes names
*/
public function getMappedClasses()
{
if (null === $this->classes) {
$this->classes = $this->getClassesFromXml();
}
return array_keys($this->classes);
}
/**
* Parses a XML File.
*
* @param string $file Path of file
*
* @return \SimpleXMLElement
*
* @throws MappingException
*/
private function parseFile($file)
{
try {
$dom = XmlUtils::loadFile($file, __DIR__.'/schema/dic/serializer-mapping/serializer-mapping-1.0.xsd');
} catch (\Exception $e) {
throw new MappingException($e->getMessage(), $e->getCode(), $e);
}
return simplexml_import_dom($dom);
}
private function getClassesFromXml()
{
$xml = $this->parseFile($this->file);
$classes = array();
foreach ($xml->class as $class) {
$classes[(string) $class['name']] = $class;
}
return $classes;
}
}