/usr/share/php/Symfony/Component/Serializer/Normalizer/DateTimeNormalizer.php is in php-symfony-serializer 3.4.6+dfsg-1.
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/*
* 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 object implementing the {@see \DateTimeInterface} to a date string.
* Denormalizes a date string to an instance of {@see \DateTime} or {@see \DateTimeImmutable}.
*
* @author Kévin Dunglas <dunglas@gmail.com>
*/
class DateTimeNormalizer implements NormalizerInterface, DenormalizerInterface
{
const FORMAT_KEY = 'datetime_format';
const TIMEZONE_KEY = 'datetime_timezone';
private $format;
private $timezone;
private static $supportedTypes = array(
\DateTimeInterface::class => true,
\DateTimeImmutable::class => true,
\DateTime::class => true,
);
/**
* @param string $format
* @param \DateTimeZone|null $timezone
*/
public function __construct($format = \DateTime::RFC3339, \DateTimeZone $timezone = null)
{
$this->format = $format;
$this->timezone = $timezone;
}
/**
* {@inheritdoc}
*
* @throws InvalidArgumentException
*/
public function normalize($object, $format = null, array $context = array())
{
if (!$object instanceof \DateTimeInterface) {
throw new InvalidArgumentException('The object must implement the "\DateTimeInterface".');
}
$format = isset($context[self::FORMAT_KEY]) ? $context[self::FORMAT_KEY] : $this->format;
$timezone = $this->getTimezone($context);
if (null !== $timezone) {
$object = (new \DateTimeImmutable('@'.$object->getTimestamp()))->setTimezone($timezone);
}
return $object->format($format);
}
/**
* {@inheritdoc}
*/
public function supportsNormalization($data, $format = null)
{
return $data instanceof \DateTimeInterface;
}
/**
* {@inheritdoc}
*
* @throws NotNormalizableValueException
*/
public function denormalize($data, $class, $format = null, array $context = array())
{
$dateTimeFormat = isset($context[self::FORMAT_KEY]) ? $context[self::FORMAT_KEY] : null;
$timezone = $this->getTimezone($context);
if ('' === $data || null === $data) {
throw new NotNormalizableValueException('The data is either an empty string or null, you should pass a string that can be parsed with the passed format or a valid DateTime string.');
}
if (null !== $dateTimeFormat) {
if (null === $timezone && PHP_VERSION_ID < 70000) {
// https://bugs.php.net/bug.php?id=68669
$object = \DateTime::class === $class ? \DateTime::createFromFormat($dateTimeFormat, $data) : \DateTimeImmutable::createFromFormat($dateTimeFormat, $data);
} else {
$object = \DateTime::class === $class ? \DateTime::createFromFormat($dateTimeFormat, $data, $timezone) : \DateTimeImmutable::createFromFormat($dateTimeFormat, $data, $timezone);
}
if (false !== $object) {
return $object;
}
$dateTimeErrors = \DateTime::class === $class ? \DateTime::getLastErrors() : \DateTimeImmutable::getLastErrors();
throw new NotNormalizableValueException(sprintf(
'Parsing datetime string "%s" using format "%s" resulted in %d errors:'."\n".'%s',
$data,
$dateTimeFormat,
$dateTimeErrors['error_count'],
implode("\n", $this->formatDateTimeErrors($dateTimeErrors['errors']))
));
}
try {
return \DateTime::class === $class ? new \DateTime($data, $timezone) : new \DateTimeImmutable($data, $timezone);
} catch (\Exception $e) {
throw new NotNormalizableValueException($e->getMessage(), $e->getCode(), $e);
}
}
/**
* {@inheritdoc}
*/
public function supportsDenormalization($data, $type, $format = null)
{
return isset(self::$supportedTypes[$type]);
}
/**
* Formats datetime errors.
*
* @return string[]
*/
private function formatDateTimeErrors(array $errors)
{
$formattedErrors = array();
foreach ($errors as $pos => $message) {
$formattedErrors[] = sprintf('at position %d: %s', $pos, $message);
}
return $formattedErrors;
}
private function getTimezone(array $context)
{
$dateTimeZone = array_key_exists(self::TIMEZONE_KEY, $context) ? $context[self::TIMEZONE_KEY] : $this->timezone;
if (null === $dateTimeZone) {
return null;
}
return $dateTimeZone instanceof \DateTimeZone ? $dateTimeZone : new \DateTimeZone($dateTimeZone);
}
}
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