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DateIntervalNormalizer.php
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DateIntervalNormalizer.php
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<?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\Serializer\Exception\InvalidArgumentException;
use Symfony\Component\Serializer\Exception\NotNormalizableValueException;
/**
* Normalizes an instance of {@see \DateInterval} to an interval string.
* Denormalizes an interval string to an instance of {@see \DateInterval}.
*
* @author Jérôme Parmentier <jerome@prmntr.me>
*
* @final since Symfony 6.3
*/
class DateIntervalNormalizer implements NormalizerInterface, DenormalizerInterface, CacheableSupportsMethodInterface
{
public const FORMAT_KEY = 'dateinterval_format';
private array $defaultContext = [
self::FORMAT_KEY => '%rP%yY%mM%dDT%hH%iM%sS',
];
public function __construct(array $defaultContext = [])
{
$this->defaultContext = array_merge($this->defaultContext, $defaultContext);
}
public function getSupportedTypes(?string $format): array
{
return [
\DateInterval::class => __CLASS__ === static::class || $this->hasCacheableSupportsMethod(),
];
}
/**
* @throws InvalidArgumentException
*/
public function normalize(mixed $object, ?string $format = null, array $context = []): string
{
if (!$object instanceof \DateInterval) {
throw new InvalidArgumentException('The object must be an instance of "\DateInterval".');
}
return $object->format($context[self::FORMAT_KEY] ?? $this->defaultContext[self::FORMAT_KEY]);
}
/**
* @param array $context
*/
public function supportsNormalization(mixed $data, ?string $format = null /* , array $context = [] */): bool
{
return $data instanceof \DateInterval;
}
/**
* @deprecated since Symfony 6.3, use "getSupportedTypes()" instead
*/
public function hasCacheableSupportsMethod(): bool
{
trigger_deprecation('symfony/serializer', '6.3', 'The "%s()" method is deprecated, implement "%s::getSupportedTypes()" instead.', __METHOD__, get_debug_type($this));
return __CLASS__ === static::class;
}
/**
* @throws NotNormalizableValueException
*/
public function denormalize(mixed $data, string $type, ?string $format = null, array $context = []): \DateInterval
{
if (!\is_string($data)) {
throw NotNormalizableValueException::createForUnexpectedDataType('Data expected to be a string.', $data, ['string'], $context['deserialization_path'] ?? null, true);
}
if (!$this->isISO8601($data)) {
throw NotNormalizableValueException::createForUnexpectedDataType('Expected a valid ISO 8601 interval string.', $data, ['string'], $context['deserialization_path'] ?? null, true);
}
$dateIntervalFormat = $context[self::FORMAT_KEY] ?? $this->defaultContext[self::FORMAT_KEY];
$signPattern = '';
switch (substr($dateIntervalFormat, 0, 2)) {
case '%R':
$signPattern = '[-+]';
$dateIntervalFormat = substr($dateIntervalFormat, 2);
break;
case '%r':
$signPattern = '-?';
$dateIntervalFormat = substr($dateIntervalFormat, 2);
break;
}
$valuePattern = '/^'.$signPattern.preg_replace('/%([yYmMdDhHiIsSwW])(\w)/', '(?:(?P<$1>\d+)$2)?', preg_replace('/(T.*)$/', '($1)?', $dateIntervalFormat)).'$/';
if (!preg_match($valuePattern, $data)) {
throw NotNormalizableValueException::createForUnexpectedDataType(sprintf('Value "%s" contains intervals not accepted by format "%s".', $data, $dateIntervalFormat), $data, ['string'], $context['deserialization_path'] ?? null, false);
}
try {
if ('-' === $data[0]) {
$interval = new \DateInterval(substr($data, 1));
$interval->invert = 1;
return $interval;
}
if ('+' === $data[0]) {
return new \DateInterval(substr($data, 1));
}
return new \DateInterval($data);
} catch (\Exception $e) {
throw NotNormalizableValueException::createForUnexpectedDataType($e->getMessage(), $data, ['string'], $context['deserialization_path'] ?? null, false, $e->getCode(), $e);
}
}
/**
* @param array $context
*/
public function supportsDenormalization(mixed $data, string $type, ?string $format = null /* , array $context = [] */): bool
{
return \DateInterval::class === $type;
}
private function isISO8601(string $string): bool
{
return preg_match('/^[\-+]?P(?=\w*(?:\d|%\w))(?:\d+Y|%[yY]Y)?(?:\d+M|%[mM]M)?(?:\d+W|%[wW]W)?(?:\d+D|%[dD]D)?(?:T(?:\d+H|[hH]H)?(?:\d+M|[iI]M)?(?:\d+S|[sS]S)?)?$/', $string);
}
}