diff options
Diffstat (limited to '')
-rw-r--r-- | vendor/dragonmantank/cron-expression/src/Cron/FieldFactory.php | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/vendor/dragonmantank/cron-expression/src/Cron/FieldFactory.php b/vendor/dragonmantank/cron-expression/src/Cron/FieldFactory.php new file mode 100644 index 0000000..839b275 --- /dev/null +++ b/vendor/dragonmantank/cron-expression/src/Cron/FieldFactory.php @@ -0,0 +1,52 @@ +<?php + +declare(strict_types=1); + +namespace Cron; + +use InvalidArgumentException; + +/** + * CRON field factory implementing a flyweight factory. + * + * @see http://en.wikipedia.org/wiki/Cron + */ +class FieldFactory implements FieldFactoryInterface +{ + /** + * @var array Cache of instantiated fields + */ + private $fields = []; + + /** + * Get an instance of a field object for a cron expression position. + * + * @param int $position CRON expression position value to retrieve + * + * @throws InvalidArgumentException if a position is not valid + */ + public function getField(int $position): FieldInterface + { + return $this->fields[$position] ?? $this->fields[$position] = $this->instantiateField($position); + } + + private function instantiateField(int $position): FieldInterface + { + switch ($position) { + case CronExpression::MINUTE: + return new MinutesField(); + case CronExpression::HOUR: + return new HoursField(); + case CronExpression::DAY: + return new DayOfMonthField(); + case CronExpression::MONTH: + return new MonthField(); + case CronExpression::WEEKDAY: + return new DayOfWeekField(); + } + + throw new InvalidArgumentException( + ($position + 1) . ' is not a valid position' + ); + } +} |