/**
* If the method was called with the same class name (or an object of that
* class) before, the same metadata instance is returned.
*
* If the factory was configured with a cache, this method will first look
* for an existing metadata instance in the cache. If an existing instance
* is found, it will be returned without further ado.
*
* Otherwise, a new metadata instance is created. If the factory was
* configured with a loader, the metadata is passed to the
* {@link LoaderInterface::loadClassMetadata()} method for further
* configuration. At last, the new object is returned.
*
* @param string|object $value
* @return ClassMetadata
* @throws \InvalidArgumentException
*/
public function getMetadataFor($value)
{
$class = $this->getClass($value);
if (!$class) {
throw new \InvalidArgumentException(sprintf('Cannot create metadata for non-objects. Got: %s', gettype($value)));
}
if (isset($this->loadedClasses[$class])) {
return $this->loadedClasses[$class];
}
if ($this->cache && ($this->loadedClasses[$class] = $this->cache->fetch($class))) {
return $this->loadedClasses[$class];
}
if (!class_exists($class) && !interface_exists($class)) {
throw new \InvalidArgumentException(sprintf('The class or interface "%s" does not exist.', $class));
}
$metadata = new ClassMetadata($class);
$reflClass = $metadata->getReflectionClass();
// Include groups from the parent class
if ($parent = $reflClass->getParentClass()) {
$metadata->mergeAttributesGroups($this->getMetadataFor($parent->name));
}
// Include groups from all implemented interfaces
foreach ($reflClass->getInterfaces() as $interface) {
$metadata->mergeAttributesGroups($this->getMetadataFor($interface->name));
}
if ($this->loader) {
$this->loader->loadClassMetadata($metadata);
}
if ($this->cache) {
$this->cache->save($class, $metadata);
}
return $this->loadedClasses[$class] = $metadata;
}
public function testLoadClassMetadataAndMerge()
{
$loader = new AnnotationLoader(new AnnotationReader());
$metadata = new ClassMetadata('Symfony\\Component\\Serializer\\Tests\\Fixtures\\GroupDummy');
$parentMetadata = new ClassMetadata('Symfony\\Component\\Serializer\\Tests\\Fixtures\\GroupDummyParent');
$loader->loadClassMetadata($parentMetadata);
$metadata->mergeAttributesGroups($parentMetadata);
$loader->loadClassMetadata($metadata);
$this->assertEquals(TestClassMetadataFactory::createClassMetadata(true), $metadata);
}