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<?php |
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declare(strict_types=1); |
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namespace Arp\DateTime; |
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use Arp\DateTime\Exception\DateTimeFactoryException; |
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/** |
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* @author Alex Patterson <[email protected]> |
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* @package Arp\DateTime |
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*/ |
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final class DateTimeFactory implements DateTimeFactoryInterface |
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{ |
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/** |
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* @var string |
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*/ |
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private string $dateTimeClassName; |
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/** |
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* @var string |
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*/ |
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private string $dateTimeZoneClassName; |
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/** |
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* @param string|null $dateTimeClassName |
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* @param string|null $dateTimeZoneClassName |
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* |
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* @throws DateTimeFactoryException |
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*/ |
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public function __construct(string $dateTimeClassName = null, string $dateTimeZoneClassName = null) |
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{ |
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$dateTimeClassName ??= \DateTime::class; |
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if (!is_a($dateTimeClassName, \DateTimeInterface::class, true)) { |
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throw new DateTimeFactoryException( |
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sprintf( |
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'The \'dateTimeClassName\' must the fully qualified class name' |
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. ' of a class that implements \'%s\'; \'%s\' provided', |
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\DateTimeInterface::class, |
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$dateTimeClassName |
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) |
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); |
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} |
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$dateTimeZoneClassName ??= \DateTimeZone::class; |
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if (!is_a($dateTimeZoneClassName, \DateTimeZone::class, true)) { |
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throw new DateTimeFactoryException( |
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sprintf( |
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'The \'dateTimeZoneClassName\' must the fully qualified class name' |
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. ' of a class that implements \'%s\'; \'%s\' provided', |
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\DateTimeZone::class, |
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$dateTimeZoneClassName |
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) |
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); |
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} |
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$this->dateTimeClassName = $dateTimeClassName; |
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$this->dateTimeZoneClassName = $dateTimeZoneClassName; |
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} |
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/** |
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* @param null|string $spec The date and time specification. |
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* @param string|\DateTimeZone|null $timeZone The date time zone. If omitted or null the PHP default will be used. |
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* |
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* @return \DateTimeInterface |
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* |
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* @throws DateTimeFactoryException If the \DateTime instance cannot be created. |
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*/ |
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public function createDateTime(string $spec = null, $timeZone = null): \DateTimeInterface |
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{ |
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try { |
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return (new $this->dateTimeClassName($spec ?? 'now', $this->resolveDateTimeZone($timeZone))); |
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} catch (\Throwable $e) { |
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throw new DateTimeFactoryException( |
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sprintf( |
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'Failed to create a valid \DateTime instance using \'%s\': %s', |
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$spec, |
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$e->getMessage() |
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), |
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$e->getCode(), |
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$e |
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); |
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} |
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} |
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/** |
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* @param string $spec The date and time specification. |
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* @param string $format The date and time format. |
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* @param string|\DateTimeZone|null $timeZone The date time zone. If omitted or null the PHP default will be used. |
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* |
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* @return \DateTimeInterface |
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* |
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* @throws DateTimeFactoryException If the \DateTime instance cannot be created. |
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*/ |
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public function createFromFormat(string $spec, string $format, $timeZone = null): \DateTimeInterface |
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{ |
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$dateTime = call_user_func( |
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[$this->dateTimeClassName, 'createFromFormat'], |
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$format, |
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$spec, |
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$this->resolveDateTimeZone($timeZone) |
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); |
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if (false === $dateTime || !$dateTime instanceof \DateTimeInterface) { |
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throw new DateTimeFactoryException( |
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sprintf( |
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'Failed to create a valid \DateTime instance using \'%s\' and format \'%s\'', |
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$spec, |
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$format |
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) |
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); |
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} |
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return $dateTime; |
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} |
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/** |
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* @param string $spec The date time zone specification. |
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* |
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* @return \DateTimeZone |
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* |
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* @throws DateTimeFactoryException If the \DateTimeZone cannot be created. |
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*/ |
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public function createDateTimeZone(string $spec): \DateTimeZone |
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{ |
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try { |
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return (new $this->dateTimeZoneClassName($spec)); |
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} catch (\Throwable $e) { |
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throw new DateTimeFactoryException( |
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sprintf( |
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'Failed to create a valid \DateTimeZone instance using \'%s\': %s', |
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$spec, |
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$e->getMessage() |
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), |
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$e->getCode(), |
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$e |
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); |
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} |
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} |
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/** |
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* @param string|null|\DateTimeZone $timeZone |
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* |
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* @return \DateTimeZone|null|string |
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* |
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* @throws DateTimeFactoryException |
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*/ |
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private function resolveDateTimeZone($timeZone): ?\DateTimeZone |
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{ |
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if (null === $timeZone || empty($timeZone)) { |
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return null; |
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} |
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if (is_string($timeZone)) { |
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$timeZone = $this->createDateTimeZone($timeZone); |
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} |
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if (!$timeZone instanceof \DateTimeZone) { |
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throw new DateTimeFactoryException( |
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sprintf( |
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'The \'timeZone\' argument must be a \'string\'' |
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. 'or an object of type \'%s\'; \'%s\' provided in \'%s\'', |
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\DateTimeZone::class, |
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is_object($timeZone) ? get_class($timeZone) : gettype($timeZone), |
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__FUNCTION__ |
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) |
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); |
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} |
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return $timeZone; |
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} |
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} |
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alex-patterson-webdev /
date-time
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