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Copy pathCakeConsumerHelperTrait.php
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189 lines (166 loc) · 5.62 KB
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<?php
declare(strict_types=1);
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org/)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org/)
* @link https://cakephp.org CakePHP(tm) Project
* @since 0.1.0
* @license https://opensource.org/licenses/MIT MIT License
*/
namespace Cake\Enqueue;
use Cake\Database\Connection;
use Exception;
use LogicException;
use Ramsey\Uuid\Uuid;
trait CakeConsumerHelperTrait
{
/**
* Timestamp when redelivery of failed messages was last executed
*
* @var float|null
*/
private ?float $redeliverMessagesLastExecutedAt = null;
/**
* Timestamp when cleanup of expired messages was last executed
*
* @var float|null
*/
private ?float $removeExpiredMessagesLastExecutedAt = null;
/**
* @return \Cake\Enqueue\CakeContext
*/
abstract protected function getContext(): CakeContext;
/**
* @return \Cake\Database\Connection
*/
abstract protected function getConnection(): Connection;
/**
* @param array $queues Queues.
* @param int $redeliveryDelay Redelivery delay/
* @return \Cake\Enqueue\CakeMessage|null
*/
protected function fetchMessage(array $queues, int $redeliveryDelay): ?CakeMessage
{
if (empty($queues)) {
throw new LogicException('Queues must not be empty.');
}
$now = time();
$deliveryId = Uuid::uuid4();
$endAt = microtime(true) + 0.2;
$select = $this->getContext()->getTable()->find()
->select(['id'])
->where([
'queue IN' => $queues,
'OR' => [
'delayed_until IS' => null,
'delayed_until <=' => $now,
],
'delivery_id IS' => null,
])
->orderBy(['priority', 'published_at']);
while (microtime(true) < $endAt) {
try {
$result = $select->first();
if (empty($result)) {
return null;
}
$updateResult = $this->getContext()->getTable()->updateAll(
[
'delivery_id' => $deliveryId,
'redeliver_after' => $now + $redeliveryDelay,
],
[
'id' => $result['id'],
'delivery_id IS' => null,
],
);
if ($updateResult) {
$deliveredMessage = $this->getContext()->getTable()->find()
->where(['delivery_id' => $deliveryId])
->first();
if ($deliveredMessage === null) {
continue;
}
if (
$deliveredMessage['redelivered'] ||
empty($deliveredMessage['time_to_live']) ||
$deliveredMessage['time_to_live'] > time()
) {
return $this->getContext()->convertMessage($deliveredMessage->toArray());
}
}
} catch (Exception $e) {
// maybe next time we'll get more luck
}
}
return null;
}
/**
* @return void
*/
protected function redeliverMessages(): void
{
if ($this->redeliverMessagesLastExecutedAt === null) {
$this->redeliverMessagesLastExecutedAt = microtime(true);
} elseif (microtime(true) - $this->redeliverMessagesLastExecutedAt < 1) {
return;
}
try {
$this->getContext()->getTable()->updateAll(
[
'delivery_id' => null,
'redeliver' => true,
],
[
'redeliver_after <' => time(),
'delivery_id IS NOT' => null,
],
);
$this->redeliverMessagesLastExecutedAt = microtime(true);
} catch (Exception $e) {
// maybe next time we'll get more luck
}
}
/**
* @return void
*/
protected function removeExpiredMessages(): void
{
if ($this->removeExpiredMessagesLastExecutedAt === null) {
$this->removeExpiredMessagesLastExecutedAt = microtime(true);
} elseif (microtime(true) - $this->removeExpiredMessagesLastExecutedAt < 1) {
return;
}
try {
$this->getContext()->getTable()->deleteAll([
'time_to_live IS NOT' => null,
'time_to_live <=' => time(),
'redelivered' => false,
'delivery_id IS' => null,
]);
} catch (Exception $e) {
// maybe next time we'll get more luck
}
$this->removeExpiredMessagesLastExecutedAt = microtime(true);
}
/**
* @param string $deliveryId Delivery id.
* @return void
*/
private function deleteMessage(string $deliveryId): void
{
if (empty($deliveryId)) {
$msg = sprintf('Expected record was removed but it is not. Delivery id: "%s"', $deliveryId);
throw new LogicException($msg);
}
$this->getContext()->getTable()->deleteAll(
['delivery_id' => $deliveryId],
);
}
}