126 lines
3.8 KiB
PHP
126 lines
3.8 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\Normalizer;
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use Symfony\Component\Serializer\Exception\InvalidArgumentException;
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use Symfony\Component\Serializer\Exception\UnexpectedValueException;
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/**
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* Normalizes an instance of {@see \DateInterval} to an interval string.
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* Denormalizes an interval string to an instance of {@see \DateInterval}.
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*
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* @author Jérôme Parmentier <jerome@prmntr.me>
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*/
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class DateIntervalNormalizer implements NormalizerInterface, DenormalizerInterface
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{
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const FORMAT_KEY = 'dateinterval_format';
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private $format;
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/**
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* @param string $format
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*/
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public function __construct($format = '%rP%yY%mM%dDT%hH%iM%sS')
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{
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$this->format = $format;
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}
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/**
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* {@inheritdoc}
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*
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* @throws InvalidArgumentException
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*/
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public function normalize($object, $format = null, array $context = [])
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{
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if (!$object instanceof \DateInterval) {
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throw new InvalidArgumentException('The object must be an instance of "\DateInterval".');
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}
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$dateIntervalFormat = isset($context[self::FORMAT_KEY]) ? $context[self::FORMAT_KEY] : $this->format;
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return $object->format($dateIntervalFormat);
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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)
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{
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return $data instanceof \DateInterval;
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}
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/**
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* {@inheritdoc}
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*
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* @throws InvalidArgumentException
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* @throws UnexpectedValueException
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*/
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public function denormalize($data, $type, $format = null, array $context = [])
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{
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if (!\is_string($data)) {
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throw new InvalidArgumentException(sprintf('Data expected to be a string, "%s" given.', \gettype($data)));
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}
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if (!$this->isISO8601($data)) {
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throw new UnexpectedValueException('Expected a valid ISO 8601 interval string.');
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}
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$dateIntervalFormat = isset($context[self::FORMAT_KEY]) ? $context[self::FORMAT_KEY] : $this->format;
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$signPattern = '';
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switch (substr($dateIntervalFormat, 0, 2)) {
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case '%R':
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$signPattern = '[-+]';
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$dateIntervalFormat = substr($dateIntervalFormat, 2);
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break;
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case '%r':
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$signPattern = '-?';
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$dateIntervalFormat = substr($dateIntervalFormat, 2);
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break;
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}
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$valuePattern = '/^'.$signPattern.preg_replace('/%([yYmMdDhHiIsSwW])(\w)/', '(?P<$1>\d+)$2', $dateIntervalFormat).'$/';
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if (!preg_match($valuePattern, $data)) {
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throw new UnexpectedValueException(sprintf('Value "%s" contains intervals not accepted by format "%s".', $data, $dateIntervalFormat));
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}
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try {
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if ('-' === $data[0]) {
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$interval = new \DateInterval(substr($data, 1));
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$interval->invert = 1;
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return $interval;
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}
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if ('+' === $data[0]) {
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return new \DateInterval(substr($data, 1));
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}
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return new \DateInterval($data);
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} catch (\Exception $e) {
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throw new UnexpectedValueException($e->getMessage(), $e->getCode(), $e);
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function supportsDenormalization($data, $type, $format = null)
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{
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return \DateInterval::class === $type;
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}
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private function isISO8601($string)
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{
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return preg_match('/^[\-+]?P(?=\w*(?:\d|%\w))(?:\d+Y|%[yY]Y)?(?:\d+M|%[mM]M)?(?:(?:\d+D|%[dD]D)|(?:\d+W|%[wW]W))?(?:T(?:\d+H|[hH]H)?(?:\d+M|[iI]M)?(?:\d+S|[sS]S)?)?$/', $string);
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}
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}
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