Version 1

[yaffs-website] / vendor / symfony / serializer / Normalizer / ObjectNormalizer.php

diff --git a/vendor/symfony/serializer/Normalizer/ObjectNormalizer.php b/vendor/symfony/serializer/Normalizer/ObjectNormalizer.php
new file mode 100644 (file)
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+++ b/vendor/symfony/serializer/Normalizer/ObjectNormalizer.php
@@ -0,0 +1,229 @@
+<?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\Serializer\Normalizer;
+
+use Symfony\Component\PropertyAccess\Exception\NoSuchPropertyException;
+use Symfony\Component\PropertyAccess\PropertyAccess;
+use Symfony\Component\PropertyAccess\PropertyAccessorInterface;
+use Symfony\Component\Serializer\Exception\CircularReferenceException;
+use Symfony\Component\Serializer\Exception\LogicException;
+use Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactoryInterface;
+use Symfony\Component\Serializer\NameConverter\NameConverterInterface;
+
+/**
+ * Converts between objects and arrays using the PropertyAccess component.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class ObjectNormalizer extends AbstractNormalizer
+{
+    private $attributesCache = array();
+
+    /**
+     * @var PropertyAccessorInterface
+     */
+    protected $propertyAccessor;
+
+    public function __construct(ClassMetadataFactoryInterface $classMetadataFactory = null, NameConverterInterface $nameConverter = null, PropertyAccessorInterface $propertyAccessor = null)
+    {
+        parent::__construct($classMetadataFactory, $nameConverter);
+
+        $this->propertyAccessor = $propertyAccessor ?: PropertyAccess::createPropertyAccessor();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supportsNormalization($data, $format = null)
+    {
+        return is_object($data) && !$data instanceof \Traversable;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @throws CircularReferenceException
+     */
+    public function normalize($object, $format = null, array $context = array())
+    {
+        if (!isset($context['cache_key'])) {
+            $context['cache_key'] = $this->getCacheKey($context);
+        }
+        if ($this->isCircularReference($object, $context)) {
+            return $this->handleCircularReference($object);
+        }
+
+        $data = array();
+        $attributes = $this->getAttributes($object, $context);
+
+        foreach ($attributes as $attribute) {
+            if (in_array($attribute, $this->ignoredAttributes)) {
+                continue;
+            }
+
+            $attributeValue = $this->propertyAccessor->getValue($object, $attribute);
+
+            if (isset($this->callbacks[$attribute])) {
+                $attributeValue = call_user_func($this->callbacks[$attribute], $attributeValue);
+            }
+
+            if (null !== $attributeValue && !is_scalar($attributeValue)) {
+                if (!$this->serializer instanceof NormalizerInterface) {
+                    throw new LogicException(sprintf('Cannot normalize attribute "%s" because injected serializer is not a normalizer', $attribute));
+                }
+
+                $attributeValue = $this->serializer->normalize($attributeValue, $format, $context);
+            }
+
+            if ($this->nameConverter) {
+                $attribute = $this->nameConverter->normalize($attribute);
+            }
+
+            $data[$attribute] = $attributeValue;
+        }
+
+        return $data;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function supportsDenormalization($data, $type, $format = null)
+    {
+        return class_exists($type);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function denormalize($data, $class, $format = null, array $context = array())
+    {
+        if (!isset($context['cache_key'])) {
+            $context['cache_key'] = $this->getCacheKey($context);
+        }
+        $allowedAttributes = $this->getAllowedAttributes($class, $context, true);
+        $normalizedData = $this->prepareForDenormalization($data);
+
+        $reflectionClass = new \ReflectionClass($class);
+        $object = $this->instantiateObject($normalizedData, $class, $context, $reflectionClass, $allowedAttributes);
+
+        foreach ($normalizedData as $attribute => $value) {
+            if ($this->nameConverter) {
+                $attribute = $this->nameConverter->denormalize($attribute);
+            }
+
+            $allowed = $allowedAttributes === false || in_array($attribute, $allowedAttributes);
+            $ignored = in_array($attribute, $this->ignoredAttributes);
+
+            if ($allowed && !$ignored) {
+                try {
+                    $this->propertyAccessor->setValue($object, $attribute, $value);
+                } catch (NoSuchPropertyException $exception) {
+                    // Properties not found are ignored
+                }
+            }
+        }
+
+        return $object;
+    }
+
+    private function getCacheKey(array $context)
+    {
+        try {
+            return md5(serialize($context));
+        } catch (\Exception $exception) {
+            // The context cannot be serialized, skip the cache
+            return false;
+        }
+    }
+
+    /**
+     * Gets and caches attributes for this class and context.
+     *
+     * @param object $object
+     * @param array  $context
+     *
+     * @return string[]
+     */
+    private function getAttributes($object, array $context)
+    {
+        $class = get_class($object);
+        $key = $class.'-'.$context['cache_key'];
+
+        if (isset($this->attributesCache[$key])) {
+            return $this->attributesCache[$key];
+        }
+
+        $allowedAttributes = $this->getAllowedAttributes($object, $context, true);
+
+        if (false !== $allowedAttributes) {
+            if ($context['cache_key']) {
+                $this->attributesCache[$key] = $allowedAttributes;
+            }
+
+            return $allowedAttributes;
+        }
+
+        if (isset($this->attributesCache[$class])) {
+            return $this->attributesCache[$class];
+        }
+
+        return $this->attributesCache[$class] = $this->extractAttributes($object);
+    }
+
+    /**
+     * Extracts attributes for this class and context.
+     *
+     * @param object $object
+     *
+     * @return string[]
+     */
+    private function extractAttributes($object)
+    {
+        // If not using groups, detect manually
+        $attributes = array();
+
+        // methods
+        $reflClass = new \ReflectionClass($object);
+        foreach ($reflClass->getMethods(\ReflectionMethod::IS_PUBLIC) as $reflMethod) {
+            if (
+                $reflMethod->getNumberOfRequiredParameters() !== 0 ||
+                $reflMethod->isStatic() ||
+                $reflMethod->isConstructor() ||
+                $reflMethod->isDestructor()
+            ) {
+                continue;
+            }
+
+            $name = $reflMethod->name;
+
+            if (0 === strpos($name, 'get') || 0 === strpos($name, 'has')) {
+                // getters and hassers
+                $attributes[lcfirst(substr($name, 3))] = true;
+            } elseif (strpos($name, 'is') === 0) {
+                // issers
+                $attributes[lcfirst(substr($name, 2))] = true;
+            }
+        }
+
+        // properties
+        foreach ($reflClass->getProperties(\ReflectionProperty::IS_PUBLIC) as $reflProperty) {
+            if ($reflProperty->isStatic()) {
+                continue;
+            }
+
+            $attributes[$reflProperty->name] = true;
+        }
+
+        return array_keys($attributes);
+    }
+}