Symfony Profiler

<?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\Config\Util\XmlUtils;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\Exception\MappingException;
use Symfony\Component\Validator\Mapping\ClassMetadata;
/**
* Loads validation metadata from an XML file.
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class XmlFileLoader extends FileLoader
{
/**
* The XML nodes of the mapping file.
*
* @var \SimpleXMLElement[]|null
*/
protected $classes;
/**
* {@inheritdoc}
*/
public function loadClassMetadata(ClassMetadata $metadata)
{
if (null === $this->classes) {
$this->loadClassesFromXml();
}
if (isset($this->classes[$metadata->getClassName()])) {
$classDescription = $this->classes[$metadata->getClassName()];
$this->loadClassMetadataFromXml($metadata, $classDescription);
return true;
}
return false;
}
/**
* Return the names of the classes mapped in this file.
*
* @return string[]
*/
public function getMappedClasses()
{
if (null === $this->classes) {
$this->loadClassesFromXml();
}
return array_keys($this->classes);
}
/**
* Parses a collection of "constraint" XML nodes.
*
* @param \SimpleXMLElement $nodes The XML nodes
*
* @return Constraint[]
*/
protected function parseConstraints(\SimpleXMLElement $nodes)
{
$constraints = [];
foreach ($nodes as $node) {
if (\count($node) > 0) {
if (\count($node->value) > 0) {
$options = $this->parseValues($node->value);
} elseif (\count($node->constraint) > 0) {
$options = $this->parseConstraints($node->constraint);
} elseif (\count($node->option) > 0) {
$options = $this->parseOptions($node->option);
} else {
$options = [];
}
} elseif ('' !== (string) $node) {
$options = XmlUtils::phpize(trim($node));
} else {
$options = null;
}
$constraints[] = $this->newConstraint((string) $node['name'], $options);
}
return $constraints;
}
/**
* Parses a collection of "value" XML nodes.
*
* @param \SimpleXMLElement $nodes The XML nodes
*
* @return array
*/
protected function parseValues(\SimpleXMLElement $nodes)
{
$values = [];
foreach ($nodes as $node) {
if (\count($node) > 0) {
if (\count($node->value) > 0) {
$value = $this->parseValues($node->value);
} elseif (\count($node->constraint) > 0) {
$value = $this->parseConstraints($node->constraint);
} else {
$value = [];
}
} else {
$value = trim($node);
}
if (isset($node['key'])) {
$values[(string) $node['key']] = $value;
} else {
$values[] = $value;
}
}
return $values;
}
/**
* Parses a collection of "option" XML nodes.
*
* @param \SimpleXMLElement $nodes The XML nodes
*
* @return array
*/
protected function parseOptions(\SimpleXMLElement $nodes)
{
$options = [];
foreach ($nodes as $node) {
if (\count($node) > 0) {
if (\count($node->value) > 0) {
$value = $this->parseValues($node->value);
} elseif (\count($node->constraint) > 0) {
$value = $this->parseConstraints($node->constraint);
} else {
$value = [];
}
} else {
$value = XmlUtils::phpize($node);
if (\is_string($value)) {
$value = trim($value);
}
}
$options[(string) $node['name']] = $value;
}
return $options;
}
/**
* Loads the XML class descriptions from the given file.
*
* @return \SimpleXMLElement
*
* @throws MappingException If the file could not be loaded
*/
protected function parseFile(string $path)
{
try {
$dom = XmlUtils::loadFile($path, __DIR__.'/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd');
} catch (\Exception $e) {
throw new MappingException($e->getMessage(), $e->getCode(), $e);
}
return simplexml_import_dom($dom);
}
private function loadClassesFromXml()
{
// This method may throw an exception. Do not modify the class'
// state before it completes
$xml = $this->parseFile($this->file);
$this->classes = [];
foreach ($xml->namespace as $namespace) {
$this->addNamespaceAlias((string) $namespace['prefix'], trim((string) $namespace));
}
foreach ($xml->class as $class) {
$this->classes[(string) $class['name']] = $class;
}
}
private function loadClassMetadataFromXml(ClassMetadata $metadata, \SimpleXMLElement $classDescription)
{
if (\count($classDescription->{'group-sequence-provider'}) > 0) {
$metadata->setGroupSequenceProvider(true);
}
foreach ($classDescription->{'group-sequence'} as $groupSequence) {
if (\count($groupSequence->value) > 0) {
$metadata->setGroupSequence($this->parseValues($groupSequence[0]->value));
}
}
foreach ($this->parseConstraints($classDescription->constraint) as $constraint) {
$metadata->addConstraint($constraint);
}
foreach ($classDescription->property as $property) {
foreach ($this->parseConstraints($property->constraint) as $constraint) {
$metadata->addPropertyConstraint((string) $property['name'], $constraint);
}
}
foreach ($classDescription->getter as $getter) {
foreach ($this->parseConstraints($getter->constraint) as $constraint) {
$metadata->addGetterConstraint((string) $getter['property'], $constraint);
}
}
}
}

vendor/symfony/validator/Mapping/Loader/XmlFileLoader.php line 215