333 lines
12 KiB
PHP
333 lines
12 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\Serializer;
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use Symfony\Component\Serializer\Encoder\ChainDecoder;
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use Symfony\Component\Serializer\Encoder\ChainEncoder;
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use Symfony\Component\Serializer\Encoder\ContextAwareDecoderInterface;
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use Symfony\Component\Serializer\Encoder\ContextAwareEncoderInterface;
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use Symfony\Component\Serializer\Encoder\DecoderInterface;
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use Symfony\Component\Serializer\Encoder\EncoderInterface;
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use Symfony\Component\Serializer\Exception\LogicException;
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use Symfony\Component\Serializer\Exception\NotEncodableValueException;
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use Symfony\Component\Serializer\Exception\NotNormalizableValueException;
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use Symfony\Component\Serializer\Normalizer\AbstractObjectNormalizer;
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use Symfony\Component\Serializer\Normalizer\CacheableSupportsMethodInterface;
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use Symfony\Component\Serializer\Normalizer\ContextAwareDenormalizerInterface;
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use Symfony\Component\Serializer\Normalizer\ContextAwareNormalizerInterface;
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use Symfony\Component\Serializer\Normalizer\DenormalizerAwareInterface;
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use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
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use Symfony\Component\Serializer\Normalizer\NormalizerAwareInterface;
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use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
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/**
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* Serializer serializes and deserializes data.
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*
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* objects are turned into arrays by normalizers.
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* arrays are turned into various output formats by encoders.
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*
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* $serializer->serialize($obj, 'xml')
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* $serializer->decode($data, 'xml')
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* $serializer->denormalize($data, 'Class', 'xml')
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*
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* @author Jordi Boggiano <j.boggiano@seld.be>
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* @author Johannes M. Schmitt <schmittjoh@gmail.com>
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* @author Lukas Kahwe Smith <smith@pooteeweet.org>
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* @author Kévin Dunglas <dunglas@gmail.com>
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*/
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class Serializer implements SerializerInterface, ContextAwareNormalizerInterface, ContextAwareDenormalizerInterface, ContextAwareEncoderInterface, ContextAwareDecoderInterface
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{
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/**
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* @var Encoder\ChainEncoder
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*/
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protected $encoder;
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/**
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* @var Encoder\ChainDecoder
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*/
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protected $decoder;
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/**
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* @internal since Symfony 4.1
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*/
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protected $normalizers = [];
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private $cachedNormalizers;
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private $denormalizerCache = [];
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private $normalizerCache = [];
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/**
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* @param array<NormalizerInterface|DenormalizerInterface> $normalizers
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* @param array<EncoderInterface|DecoderInterface> $encoders
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*/
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public function __construct(array $normalizers = [], array $encoders = [])
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{
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foreach ($normalizers as $normalizer) {
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if ($normalizer instanceof SerializerAwareInterface) {
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$normalizer->setSerializer($this);
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}
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if ($normalizer instanceof DenormalizerAwareInterface) {
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$normalizer->setDenormalizer($this);
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}
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if ($normalizer instanceof NormalizerAwareInterface) {
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$normalizer->setNormalizer($this);
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}
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if (!($normalizer instanceof NormalizerInterface || $normalizer instanceof DenormalizerInterface)) {
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@trigger_error(sprintf('Passing normalizers ("%s") which do not implement either "%s" or "%s" has been deprecated since Symfony 4.2.', \get_class($normalizer), NormalizerInterface::class, DenormalizerInterface::class), \E_USER_DEPRECATED);
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// throw new \InvalidArgumentException(sprintf('The class "%s" does not implement "%s" or "%s".', \get_class($normalizer), NormalizerInterface::class, DenormalizerInterface::class));
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}
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}
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$this->normalizers = $normalizers;
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$decoders = [];
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$realEncoders = [];
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foreach ($encoders as $encoder) {
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if ($encoder instanceof SerializerAwareInterface) {
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$encoder->setSerializer($this);
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}
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if ($encoder instanceof DecoderInterface) {
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$decoders[] = $encoder;
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}
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if ($encoder instanceof EncoderInterface) {
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$realEncoders[] = $encoder;
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}
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if (!($encoder instanceof EncoderInterface || $encoder instanceof DecoderInterface)) {
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@trigger_error(sprintf('Passing encoders ("%s") which do not implement either "%s" or "%s" has been deprecated since Symfony 4.2.', \get_class($encoder), EncoderInterface::class, DecoderInterface::class), \E_USER_DEPRECATED);
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// throw new \InvalidArgumentException(sprintf('The class "%s" does not implement "%s" or "%s".', \get_class($normalizer), EncoderInterface::class, DecoderInterface::class));
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}
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}
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$this->encoder = new ChainEncoder($realEncoders);
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$this->decoder = new ChainDecoder($decoders);
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}
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/**
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* {@inheritdoc}
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*/
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final public function serialize($data, $format, array $context = []): string
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{
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if (!$this->supportsEncoding($format, $context)) {
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throw new NotEncodableValueException(sprintf('Serialization for the format "%s" is not supported.', $format));
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}
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if ($this->encoder->needsNormalization($format, $context)) {
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$data = $this->normalize($data, $format, $context);
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}
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return $this->encode($data, $format, $context);
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}
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/**
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* {@inheritdoc}
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*/
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final public function deserialize($data, $type, $format, array $context = [])
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{
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if (!$this->supportsDecoding($format, $context)) {
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throw new NotEncodableValueException(sprintf('Deserialization for the format "%s" is not supported.', $format));
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}
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$data = $this->decode($data, $format, $context);
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return $this->denormalize($data, $type, $format, $context);
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}
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/**
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* {@inheritdoc}
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*/
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public function normalize($data, $format = null, array $context = [])
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{
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// If a normalizer supports the given data, use it
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if ($normalizer = $this->getNormalizer($data, $format, $context)) {
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return $normalizer->normalize($data, $format, $context);
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}
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if (null === $data || \is_scalar($data)) {
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return $data;
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}
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if (is_iterable($data)) {
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if (($context[AbstractObjectNormalizer::PRESERVE_EMPTY_OBJECTS] ?? false) === true && $data instanceof \Countable && 0 === $data->count()) {
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return $data;
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}
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$normalized = [];
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foreach ($data as $key => $val) {
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$normalized[$key] = $this->normalize($val, $format, $context);
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}
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return $normalized;
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}
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if (\is_object($data)) {
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if (!$this->normalizers) {
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throw new LogicException('You must register at least one normalizer to be able to normalize objects.');
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}
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throw new NotNormalizableValueException(sprintf('Could not normalize object of type "%s", no supporting normalizer found.', \get_class($data)));
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}
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throw new NotNormalizableValueException('An unexpected value could not be normalized: '.(!\is_resource($data) ? var_export($data, true) : sprintf('%s resource', get_resource_type($data))));
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}
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/**
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* {@inheritdoc}
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*
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* @throws NotNormalizableValueException
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*/
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public function denormalize($data, $type, $format = null, array $context = [])
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{
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if (!$this->normalizers) {
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throw new LogicException('You must register at least one normalizer to be able to denormalize objects.');
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}
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if ($normalizer = $this->getDenormalizer($data, $type, $format, $context)) {
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return $normalizer->denormalize($data, $type, $format, $context);
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}
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throw new NotNormalizableValueException(sprintf('Could not denormalize object of type "%s", no supporting normalizer found.', $type));
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}
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/**
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* {@inheritdoc}
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*/
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public function supportsNormalization($data, $format = null, array $context = [])
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{
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return null !== $this->getNormalizer($data, $format, $context);
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}
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/**
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* {@inheritdoc}
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*/
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public function supportsDenormalization($data, $type, $format = null, array $context = [])
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{
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return null !== $this->getDenormalizer($data, $type, $format, $context);
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}
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/**
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* Returns a matching normalizer.
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*
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* @param mixed $data Data to get the serializer for
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* @param string $format Format name, present to give the option to normalizers to act differently based on formats
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* @param array $context Options available to the normalizer
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*/
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private function getNormalizer($data, ?string $format, array $context): ?NormalizerInterface
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{
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if ($this->cachedNormalizers !== $this->normalizers) {
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$this->cachedNormalizers = $this->normalizers;
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$this->denormalizerCache = $this->normalizerCache = [];
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}
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$type = \is_object($data) ? \get_class($data) : 'native-'.\gettype($data);
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if (!isset($this->normalizerCache[$format][$type])) {
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$this->normalizerCache[$format][$type] = [];
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foreach ($this->normalizers as $k => $normalizer) {
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if (!$normalizer instanceof NormalizerInterface) {
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continue;
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}
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if (!$normalizer instanceof CacheableSupportsMethodInterface || !$normalizer->hasCacheableSupportsMethod()) {
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$this->normalizerCache[$format][$type][$k] = false;
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} elseif ($normalizer->supportsNormalization($data, $format, $context)) {
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$this->normalizerCache[$format][$type][$k] = true;
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break;
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}
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}
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}
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foreach ($this->normalizerCache[$format][$type] as $k => $cached) {
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$normalizer = $this->normalizers[$k];
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if ($cached || $normalizer->supportsNormalization($data, $format, $context)) {
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return $normalizer;
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}
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}
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return null;
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}
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/**
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* Returns a matching denormalizer.
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*
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* @param mixed $data Data to restore
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* @param string $class The expected class to instantiate
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* @param string $format Format name, present to give the option to normalizers to act differently based on formats
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* @param array $context Options available to the denormalizer
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*/
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private function getDenormalizer($data, string $class, ?string $format, array $context): ?DenormalizerInterface
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{
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if ($this->cachedNormalizers !== $this->normalizers) {
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$this->cachedNormalizers = $this->normalizers;
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$this->denormalizerCache = $this->normalizerCache = [];
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}
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if (!isset($this->denormalizerCache[$format][$class])) {
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$this->denormalizerCache[$format][$class] = [];
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foreach ($this->normalizers as $k => $normalizer) {
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if (!$normalizer instanceof DenormalizerInterface) {
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continue;
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}
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if (!$normalizer instanceof CacheableSupportsMethodInterface || !$normalizer->hasCacheableSupportsMethod()) {
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$this->denormalizerCache[$format][$class][$k] = false;
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} elseif ($normalizer->supportsDenormalization(null, $class, $format, $context)) {
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$this->denormalizerCache[$format][$class][$k] = true;
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break;
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}
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}
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}
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foreach ($this->denormalizerCache[$format][$class] as $k => $cached) {
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$normalizer = $this->normalizers[$k];
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if ($cached || $normalizer->supportsDenormalization($data, $class, $format, $context)) {
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return $normalizer;
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}
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}
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return null;
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}
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/**
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* {@inheritdoc}
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*/
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final public function encode($data, $format, array $context = [])
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{
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return $this->encoder->encode($data, $format, $context);
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}
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/**
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* {@inheritdoc}
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*/
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final public function decode($data, $format, array $context = [])
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{
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return $this->decoder->decode($data, $format, $context);
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}
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/**
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* {@inheritdoc}
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*/
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public function supportsEncoding($format, array $context = [])
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{
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return $this->encoder->supportsEncoding($format, $context);
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}
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/**
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* {@inheritdoc}
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*/
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public function supportsDecoding($format, array $context = [])
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{
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return $this->decoder->supportsDecoding($format, $context);
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}
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}
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