/**
  * {@inheritDoc}
  */
 public function denormalize($data, ContextInterface $context)
 {
     $class = $context->getAttribute('_class');
     if (!$class) {
         throw new DenormalizationFailedException('Undefined class for denormalization');
     }
     $metadata = $this->metadataFactory->loadMetadata($class);
     if ($context->getGroups()) {
         $denormalizeProperties = $metadata->getPropertiesForGroups($context->getGroups());
     } else {
         $denormalizeProperties = $metadata->getProperties();
     }
     $classReflection = Reflection::loadClassReflection($class);
     if ($object = $context->getAttribute('_object')) {
         if (!is_object($object)) {
             throw UnexpectedTypeException::create($object, 'object');
         }
         if (get_class($object) != $classReflection && !is_a($object, $class)) {
             throw UnexpectedTypeException::create($object, $class);
         }
     } else {
         $object = $classReflection->newInstanceWithoutConstructor();
     }
     foreach ($denormalizeProperties as $denormalizePropertyName => $propertyMetadata) {
         $fieldName = $propertyMetadata->getFieldName();
         if (!isset($data[$fieldName])) {
             continue;
         }
         $objectPropertyReflection = $classReflection->getProperty($denormalizePropertyName);
         if (!$objectPropertyReflection->isPublic()) {
             $objectPropertyReflection->setAccessible(true);
         }
         $denormalizedValue = $this->denormalizeValue($data[$fieldName], $propertyMetadata, $objectPropertyReflection);
         $objectPropertyReflection->setValue($object, $denormalizedValue);
     }
     return $object;
 }