113 lines
3.2 KiB
PHP
113 lines
3.2 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\Validator\Mapping;
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use Symfony\Component\Validator\MetadataFactoryInterface;
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use Symfony\Component\Validator\Exception\NoSuchMetadataException;
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use Symfony\Component\Validator\Mapping\Loader\LoaderInterface;
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use Symfony\Component\Validator\Mapping\Cache\CacheInterface;
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/**
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* A factory for creating metadata for PHP classes.
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*
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* @author Bernhard Schussek <bschussek@gmail.com>
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*/
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class ClassMetadataFactory implements MetadataFactoryInterface
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{
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/**
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* The loader for loading the class metadata
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* @var LoaderInterface
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*/
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protected $loader;
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/**
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* The cache for caching class metadata
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* @var CacheInterface
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*/
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protected $cache;
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protected $loadedClasses = array();
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public function __construct(LoaderInterface $loader = null, CacheInterface $cache = null)
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{
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$this->loader = $loader;
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$this->cache = $cache;
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}
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/**
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* {@inheritdoc}
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*/
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public function getMetadataFor($value)
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{
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if (!is_object($value) && !is_string($value)) {
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throw new NoSuchMetadataException(sprintf('Cannot create metadata for non-objects. Got: %s', gettype($value)));
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}
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$class = ltrim(is_object($value) ? get_class($value) : $value, '\\');
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if (isset($this->loadedClasses[$class])) {
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return $this->loadedClasses[$class];
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}
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if (null !== $this->cache && false !== ($this->loadedClasses[$class] = $this->cache->read($class))) {
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return $this->loadedClasses[$class];
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}
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if (!class_exists($class) && !interface_exists($class)) {
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throw new NoSuchMetadataException(sprintf('The class or interface "%s" does not exist.', $class));
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}
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$metadata = new ClassMetadata($class);
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// Include constraints from the parent class
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if ($parent = $metadata->getReflectionClass()->getParentClass()) {
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$metadata->mergeConstraints($this->getMetadataFor($parent->name));
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}
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// Include constraints from all implemented interfaces
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foreach ($metadata->getReflectionClass()->getInterfaces() as $interface) {
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if ('Symfony\Component\Validator\GroupSequenceProviderInterface' === $interface->name) {
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continue;
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}
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$metadata->mergeConstraints($this->getMetadataFor($interface->name));
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}
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if (null !== $this->loader) {
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$this->loader->loadClassMetadata($metadata);
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}
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if (null !== $this->cache) {
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$this->cache->write($metadata);
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}
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return $this->loadedClasses[$class] = $metadata;
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}
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/**
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* {@inheritdoc}
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*/
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public function hasMetadataFor($value)
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{
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if (!is_object($value) && !is_string($value)) {
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return false;
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}
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$class = ltrim(is_object($value) ? get_class($value) : $value, '\\');
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if (class_exists($class) || interface_exists($class)) {
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return true;
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}
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return false;
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}
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}
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