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<?php |
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namespace MGDigital\BusQue; |
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class SchedulerWorker |
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{ |
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const DEFAULT_THROTTLE = 100; |
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private $implementation; |
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public function __construct(Implementation $implementation) |
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{ |
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$this->implementation = $implementation; |
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} |
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/** |
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* @param int|null $limit The maximum number of scheduled commands to queue. |
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* @param int $throttle The maximum number of scheduled commands to receive at a time. |
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* @param int|null $time The maximum amount of time in seconds to work. |
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* @param int $uSleepTime The number of microseconds to usleep between each query to the scheduler. |
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* @param \DateInterval|null $expiry The expiry interval for an overdue unqueued command. |
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*/ |
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public function work( |
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int $limit = null, |
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int $throttle = self::DEFAULT_THROTTLE, |
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int $time = null, |
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int $uSleepTime = 5000000, |
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\DateInterval $expiry = null |
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) { |
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$stopwatchStart = time(); |
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while ($limit === null || $limit > 0) { |
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$queuedCount = $this->iterate($throttle, $expiry); |
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if ($limit !== null) { |
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$limit -= $queuedCount; |
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if ($limit <= 0) { |
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break; |
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} |
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} |
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if ($time !== null && (time() - $stopwatchStart >= $time)) { |
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break; |
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} |
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usleep($uSleepTime); |
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} |
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} |
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private function iterate(int $throttle, \DateInterval $expiry = null): int |
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{ |
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$count = 0; |
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$now = $this->implementation->getClock()->getTime(); |
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if ($expiry === null) { |
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$start = null; |
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} else { |
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$start = clone $now; |
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$start = $start->sub($expiry); |
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} |
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$receivedCommands = $this->implementation->getSchedulerDriver() |
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->receiveDueCommands($now, $throttle, $start); |
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foreach ($receivedCommands as $command) { |
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$this->handleReceivedCommand($command); |
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$count++; |
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} |
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return $count; |
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} |
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private function handleReceivedCommand(ReceivedScheduledCommand $command) |
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{ |
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$this->implementation->getQueueDriver() |
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->queueCommand( |
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$command->getQueueName(), |
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$command->getId(), |
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$command->getSerialized() |
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); |
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$this->implementation->getLogger()->debug('Scheduled command queued', compact('command')); |
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} |
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} |
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mgdigital /
BusQue
