107 lines
2.8 KiB
PHP
107 lines
2.8 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\Encoder;
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use Symfony\Component\Serializer\Debug\TraceableEncoder;
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use Symfony\Component\Serializer\Exception\RuntimeException;
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/**
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* Encoder delegating the decoding to a chain of encoders.
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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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*
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* @final
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*/
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class ChainEncoder implements ContextAwareEncoderInterface
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{
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/**
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* @var array<string, array-key>
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*/
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private array $encoderByFormat = [];
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/**
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* @param array<EncoderInterface> $encoders
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*/
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public function __construct(
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private readonly array $encoders = [],
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) {
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}
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final public function encode(mixed $data, string $format, array $context = []): string
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{
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return $this->getEncoder($format, $context)->encode($data, $format, $context);
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}
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public function supportsEncoding(string $format, array $context = []): bool
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{
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try {
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$this->getEncoder($format, $context);
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} catch (RuntimeException) {
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return false;
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}
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return true;
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}
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/**
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* Checks whether the normalization is needed for the given format.
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*/
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public function needsNormalization(string $format, array $context = []): bool
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{
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$encoder = $this->getEncoder($format, $context);
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if ($encoder instanceof TraceableEncoder) {
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return $encoder->needsNormalization();
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}
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if (!$encoder instanceof NormalizationAwareInterface) {
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return true;
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}
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if ($encoder instanceof self) {
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return $encoder->needsNormalization($format, $context);
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}
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return false;
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}
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/**
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* Gets the encoder supporting the format.
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*
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* @throws RuntimeException if no encoder is found
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*/
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private function getEncoder(string $format, array $context): EncoderInterface
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{
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if (isset($this->encoderByFormat[$format])
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&& isset($this->encoders[$this->encoderByFormat[$format]])
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) {
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return $this->encoders[$this->encoderByFormat[$format]];
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}
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$cache = true;
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foreach ($this->encoders as $i => $encoder) {
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$cache = $cache && !$encoder instanceof ContextAwareEncoderInterface;
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if ($encoder->supportsEncoding($format, $context)) {
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if ($cache) {
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$this->encoderByFormat[$format] = $i;
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}
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return $encoder;
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}
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}
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throw new RuntimeException(\sprintf('No encoder found for format "%s".', $format));
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}
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}
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