vendor/doctrine/persistence/src/Persistence/Mapping/AbstractClassMetadataFactory.php line 207
- <?php
- declare(strict_types=1);
- namespace Doctrine\Persistence\Mapping;
- use Doctrine\Persistence\Mapping\Driver\MappingDriver;
- use Doctrine\Persistence\Proxy;
- use Psr\Cache\CacheItemPoolInterface;
- use ReflectionClass;
- use ReflectionException;
- use function array_combine;
- use function array_keys;
- use function array_map;
- use function array_reverse;
- use function array_unshift;
- use function assert;
- use function class_exists;
- use function ltrim;
- use function str_replace;
- use function strpos;
- use function strrpos;
- use function substr;
- /**
- * The ClassMetadataFactory is used to create ClassMetadata objects that contain all the
- * metadata mapping informations of a class which describes how a class should be mapped
- * to a relational database.
- *
- * This class was abstracted from the ORM ClassMetadataFactory.
- *
- * @template CMTemplate of ClassMetadata
- * @template-implements ClassMetadataFactory<CMTemplate>
- */
- abstract class AbstractClassMetadataFactory implements ClassMetadataFactory
- {
- /**
- * Salt used by specific Object Manager implementation.
- *
- * @var string
- */
- protected $cacheSalt = '__CLASSMETADATA__';
- /** @var CacheItemPoolInterface|null */
- private $cache;
- /**
- * @var array<string, ClassMetadata>
- * @psalm-var CMTemplate[]
- */
- private $loadedMetadata = [];
- /** @var bool */
- protected $initialized = false;
- /** @var ReflectionService|null */
- private $reflectionService = null;
- /** @var ProxyClassNameResolver|null */
- private $proxyClassNameResolver = null;
- public function setCache(CacheItemPoolInterface $cache): void
- {
- $this->cache = $cache;
- }
- final protected function getCache(): ?CacheItemPoolInterface
- {
- return $this->cache;
- }
- /**
- * Returns an array of all the loaded metadata currently in memory.
- *
- * @return ClassMetadata[]
- * @psalm-return CMTemplate[]
- */
- public function getLoadedMetadata()
- {
- return $this->loadedMetadata;
- }
- /**
- * {@inheritDoc}
- */
- public function getAllMetadata()
- {
- if (! $this->initialized) {
- $this->initialize();
- }
- $driver = $this->getDriver();
- $metadata = [];
- foreach ($driver->getAllClassNames() as $className) {
- $metadata[] = $this->getMetadataFor($className);
- }
- return $metadata;
- }
- public function setProxyClassNameResolver(ProxyClassNameResolver $resolver): void
- {
- $this->proxyClassNameResolver = $resolver;
- }
- /**
- * Lazy initialization of this stuff, especially the metadata driver,
- * since these are not needed at all when a metadata cache is active.
- *
- * @return void
- */
- abstract protected function initialize();
- /**
- * Returns the mapping driver implementation.
- *
- * @return MappingDriver
- */
- abstract protected function getDriver();
- /**
- * Wakes up reflection after ClassMetadata gets unserialized from cache.
- *
- * @psalm-param CMTemplate $class
- *
- * @return void
- */
- abstract protected function wakeupReflection(
- ClassMetadata $class,
- ReflectionService $reflService
- );
- /**
- * Initializes Reflection after ClassMetadata was constructed.
- *
- * @psalm-param CMTemplate $class
- *
- * @return void
- */
- abstract protected function initializeReflection(
- ClassMetadata $class,
- ReflectionService $reflService
- );
- /**
- * Checks whether the class metadata is an entity.
- *
- * This method should return false for mapped superclasses or embedded classes.
- *
- * @psalm-param CMTemplate $class
- *
- * @return bool
- */
- abstract protected function isEntity(ClassMetadata $class);
- /**
- * Removes the prepended backslash of a class string to conform with how php outputs class names
- *
- * @psalm-param class-string $className
- *
- * @psalm-return class-string
- */
- private function normalizeClassName(string $className): string
- {
- return ltrim($className, '\\');
- }
- /**
- * {@inheritDoc}
- *
- * @throws ReflectionException
- * @throws MappingException
- */
- public function getMetadataFor(string $className)
- {
- $className = $this->normalizeClassName($className);
- if (isset($this->loadedMetadata[$className])) {
- return $this->loadedMetadata[$className];
- }
- if (class_exists($className, false) && (new ReflectionClass($className))->isAnonymous()) {
- throw MappingException::classIsAnonymous($className);
- }
- if (! class_exists($className, false) && strpos($className, ':') !== false) {
- throw MappingException::nonExistingClass($className);
- }
- $realClassName = $this->getRealClass($className);
- if (isset($this->loadedMetadata[$realClassName])) {
- // We do not have the alias name in the map, include it
- return $this->loadedMetadata[$className] = $this->loadedMetadata[$realClassName];
- }
- try {
- if ($this->cache !== null) {
- $cached = $this->cache->getItem($this->getCacheKey($realClassName))->get();
- if ($cached instanceof ClassMetadata) {
- /** @psalm-var CMTemplate $cached */
- $this->loadedMetadata[$realClassName] = $cached;
- $this->wakeupReflection($cached, $this->getReflectionService());
- } else {
- $loadedMetadata = $this->loadMetadata($realClassName);
- $classNames = array_combine(
- array_map([$this, 'getCacheKey'], $loadedMetadata),
- $loadedMetadata
- );
- foreach ($this->cache->getItems(array_keys($classNames)) as $item) {
- if (! isset($classNames[$item->getKey()])) {
- continue;
- }
- $item->set($this->loadedMetadata[$classNames[$item->getKey()]]);
- $this->cache->saveDeferred($item);
- }
- $this->cache->commit();
- }
- } else {
- $this->loadMetadata($realClassName);
- }
- } catch (MappingException $loadingException) {
- $fallbackMetadataResponse = $this->onNotFoundMetadata($realClassName);
- if ($fallbackMetadataResponse === null) {
- throw $loadingException;
- }
- $this->loadedMetadata[$realClassName] = $fallbackMetadataResponse;
- }
- if ($className !== $realClassName) {
- // We do not have the alias name in the map, include it
- $this->loadedMetadata[$className] = $this->loadedMetadata[$realClassName];
- }
- return $this->loadedMetadata[$className];
- }
- /**
- * {@inheritDoc}
- */
- public function hasMetadataFor(string $className)
- {
- $className = $this->normalizeClassName($className);
- return isset($this->loadedMetadata[$className]);
- }
- /**
- * Sets the metadata descriptor for a specific class.
- *
- * NOTE: This is only useful in very special cases, like when generating proxy classes.
- *
- * @psalm-param class-string $className
- * @psalm-param CMTemplate $class
- *
- * @return void
- */
- public function setMetadataFor(string $className, ClassMetadata $class)
- {
- $this->loadedMetadata[$this->normalizeClassName($className)] = $class;
- }
- /**
- * Gets an array of parent classes for the given entity class.
- *
- * @psalm-param class-string $name
- *
- * @return string[]
- * @psalm-return list<class-string>
- */
- protected function getParentClasses(string $name)
- {
- // Collect parent classes, ignoring transient (not-mapped) classes.
- $parentClasses = [];
- foreach (array_reverse($this->getReflectionService()->getParentClasses($name)) as $parentClass) {
- if ($this->getDriver()->isTransient($parentClass)) {
- continue;
- }
- $parentClasses[] = $parentClass;
- }
- return $parentClasses;
- }
- /**
- * Loads the metadata of the class in question and all it's ancestors whose metadata
- * is still not loaded.
- *
- * Important: The class $name does not necessarily exist at this point here.
- * Scenarios in a code-generation setup might have access to XML/YAML
- * Mapping files without the actual PHP code existing here. That is why the
- * {@see \Doctrine\Persistence\Mapping\ReflectionService} interface
- * should be used for reflection.
- *
- * @param string $name The name of the class for which the metadata should get loaded.
- * @psalm-param class-string $name
- *
- * @return array<int, string>
- * @psalm-return list<string>
- */
- protected function loadMetadata(string $name)
- {
- if (! $this->initialized) {
- $this->initialize();
- }
- $loaded = [];
- $parentClasses = $this->getParentClasses($name);
- $parentClasses[] = $name;
- // Move down the hierarchy of parent classes, starting from the topmost class
- $parent = null;
- $rootEntityFound = false;
- $visited = [];
- $reflService = $this->getReflectionService();
- foreach ($parentClasses as $className) {
- if (isset($this->loadedMetadata[$className])) {
- $parent = $this->loadedMetadata[$className];
- if ($this->isEntity($parent)) {
- $rootEntityFound = true;
- array_unshift($visited, $className);
- }
- continue;
- }
- $class = $this->newClassMetadataInstance($className);
- $this->initializeReflection($class, $reflService);
- $this->doLoadMetadata($class, $parent, $rootEntityFound, $visited);
- $this->loadedMetadata[$className] = $class;
- $parent = $class;
- if ($this->isEntity($class)) {
- $rootEntityFound = true;
- array_unshift($visited, $className);
- }
- $this->wakeupReflection($class, $reflService);
- $loaded[] = $className;
- }
- return $loaded;
- }
- /**
- * Provides a fallback hook for loading metadata when loading failed due to reflection/mapping exceptions
- *
- * Override this method to implement a fallback strategy for failed metadata loading
- *
- * @return ClassMetadata|null
- * @psalm-return CMTemplate|null
- */
- protected function onNotFoundMetadata(string $className)
- {
- return null;
- }
- /**
- * Actually loads the metadata from the underlying metadata.
- *
- * @param bool $rootEntityFound True when there is another entity (non-mapped superclass) class above the current class in the PHP class hierarchy.
- * @param list<class-string> $nonSuperclassParents All parent class names that are not marked as mapped superclasses, with the direct parent class being the first and the root entity class the last element.
- * @psalm-param CMTemplate $class
- * @psalm-param CMTemplate|null $parent
- *
- * @return void
- */
- abstract protected function doLoadMetadata(
- ClassMetadata $class,
- ?ClassMetadata $parent,
- bool $rootEntityFound,
- array $nonSuperclassParents
- );
- /**
- * Creates a new ClassMetadata instance for the given class name.
- *
- * @psalm-param class-string<T> $className
- *
- * @return ClassMetadata<T>
- * @psalm-return CMTemplate
- *
- * @template T of object
- */
- abstract protected function newClassMetadataInstance(string $className);
- /**
- * {@inheritDoc}
- */
- public function isTransient(string $className)
- {
- if (! $this->initialized) {
- $this->initialize();
- }
- if (class_exists($className, false) && (new ReflectionClass($className))->isAnonymous()) {
- return false;
- }
- if (! class_exists($className, false) && strpos($className, ':') !== false) {
- throw MappingException::nonExistingClass($className);
- }
- /** @psalm-var class-string $className */
- return $this->getDriver()->isTransient($className);
- }
- /**
- * Sets the reflectionService.
- *
- * @return void
- */
- public function setReflectionService(ReflectionService $reflectionService)
- {
- $this->reflectionService = $reflectionService;
- }
- /**
- * Gets the reflection service associated with this metadata factory.
- *
- * @return ReflectionService
- */
- public function getReflectionService()
- {
- if ($this->reflectionService === null) {
- $this->reflectionService = new RuntimeReflectionService();
- }
- return $this->reflectionService;
- }
- protected function getCacheKey(string $realClassName): string
- {
- return str_replace('\\', '__', $realClassName) . $this->cacheSalt;
- }
- /**
- * Gets the real class name of a class name that could be a proxy.
- *
- * @psalm-param class-string<Proxy<T>>|class-string<T> $class
- *
- * @psalm-return class-string<T>
- *
- * @template T of object
- */
- private function getRealClass(string $class): string
- {
- if ($this->proxyClassNameResolver === null) {
- $this->createDefaultProxyClassNameResolver();
- }
- assert($this->proxyClassNameResolver !== null);
- return $this->proxyClassNameResolver->resolveClassName($class);
- }
- private function createDefaultProxyClassNameResolver(): void
- {
- $this->proxyClassNameResolver = new class implements ProxyClassNameResolver {
- /**
- * @psalm-param class-string<Proxy<T>>|class-string<T> $className
- *
- * @psalm-return class-string<T>
- *
- * @template T of object
- */
- public function resolveClassName(string $className): string
- {
- $pos = strrpos($className, '\\' . Proxy::MARKER . '\\');
- if ($pos === false) {
- /** @psalm-var class-string<T> */
- return $className;
- }
- /** @psalm-var class-string<T> */
- return substr($className, $pos + Proxy::MARKER_LENGTH + 2);
- }
- };
- }
- }