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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| <?php | ||
|
|
||
| declare(strict_types=1); | ||
|
|
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| namespace Enqueue\Redis; | ||
|
|
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| class JsonSerializer implements Serializer | ||
| { | ||
| public function toString(RedisMessage $message): string | ||
| { | ||
| $json = json_encode([ | ||
| 'body' => $message->getBody(), | ||
| 'properties' => $message->getProperties(), | ||
| 'headers' => $message->getHeaders(), | ||
| ]); | ||
|
|
||
| if (JSON_ERROR_NONE !== json_last_error()) { | ||
| throw new \InvalidArgumentException(sprintf( | ||
| 'The malformed json given. Error %s and message %s', | ||
| json_last_error(), | ||
| json_last_error_msg() | ||
| )); | ||
| } | ||
|
|
||
| return $json; | ||
| } | ||
|
|
||
| public function toMessage(string $string): RedisMessage | ||
| { | ||
| $data = json_decode($string, true); | ||
| if (JSON_ERROR_NONE !== json_last_error()) { | ||
| throw new \InvalidArgumentException(sprintf( | ||
| 'The malformed json given. Error %s and message %s', | ||
| json_last_error(), | ||
| json_last_error_msg() | ||
| )); | ||
| } | ||
|
|
||
| return new RedisMessage($data['body'], $data['properties'], $data['headers']); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| <?php | ||
|
|
||
| declare(strict_types=1); | ||
|
|
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| namespace Enqueue\Redis; | ||
|
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| trait RedisConsumerHelperTrait | ||
| { | ||
| /** | ||
| * @var string[] | ||
| */ | ||
| protected $queueNames; | ||
|
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| abstract function getContext(): RedisContext; | ||
|
|
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| /** | ||
| * @param RedisDestination[] $queues | ||
| * @param int $timeout | ||
| * @param int $redeliveryDelay | ||
| * | ||
| * @return RedisMessage|null | ||
| */ | ||
| protected function receiveMessage(array $queues, int $timeout, int $redeliveryDelay): ?RedisMessage | ||
| { | ||
| $startAt = time(); | ||
| $thisTimeout = $timeout; | ||
|
|
||
| if (null === $this->queueNames) { | ||
| $this->queueNames = []; | ||
| foreach ($queues as $queue) { | ||
| $this->queueNames[] = $queue->getName(); | ||
| } | ||
| } | ||
|
|
||
| while ($thisTimeout > 0) { | ||
| $this->migrateExpiredMessages($this->queueNames); | ||
|
|
||
| if ($result = $this->getContext()->getRedis()->brpop($this->queueNames, $thisTimeout)) { | ||
| $this->pushQueueNameBack($result->getKey()); | ||
|
|
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| if ($message = $this->processResult($result, $redeliveryDelay)) { | ||
| return $message; | ||
| } | ||
| } | ||
|
|
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| $thisTimeout -= time() - $startAt; | ||
| } | ||
|
|
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| return null; | ||
| } | ||
|
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| protected function receiveMessageNoWait(RedisDestination $destination, int $redeliveryDelay): ?RedisMessage | ||
| { | ||
| $this->migrateExpiredMessages([$destination->getName()]); | ||
|
|
||
| if ($result = $this->getContext()->getRedis()->rpop($destination->getName())) { | ||
| return $this->processResult($result, $redeliveryDelay); | ||
| } | ||
|
|
||
| return null; | ||
| } | ||
|
|
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| protected function processResult(RedisResult $result, int $redeliveryDelay): ?RedisMessage | ||
| { | ||
| $message = $this->getContext()->getSerializer()->toMessage($result->getMessage()); | ||
|
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| $now = time(); | ||
|
|
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| if ($expiresAt = $message->getHeader('expires_at')) { | ||
| if ($now > $expiresAt) { | ||
| return null; | ||
| } | ||
| } | ||
|
|
||
| $message->setHeader('attempts', $message->getAttempts() + 1); | ||
| $message->setRedelivered($message->getAttempts() > 1); | ||
| $message->setKey($result->getKey()); | ||
| $message->setReservedKey($this->getContext()->getSerializer()->toString($message)); | ||
|
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| $reservedQueue = $result->getKey().':reserved'; | ||
| $redeliveryAt = $now + $redeliveryDelay; | ||
|
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| $this->getContext()->getRedis()->zadd($reservedQueue, $message->getReservedKey(), $redeliveryAt); | ||
|
|
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| return $message; | ||
| } | ||
|
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| protected function pushQueueNameBack(string $queueName): void | ||
| { | ||
| if (count($this->queueNames) <= 1) { | ||
| return; | ||
| } | ||
|
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| if (false === $from = array_search($queueName, $this->queueNames, true)) { | ||
| throw new \LogicException(sprintf('Queue name was not found: "%s"', $queueName)); | ||
| } | ||
|
|
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| $to = count($this->queueNames) - 1; | ||
|
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| $out = array_splice($this->queueNames, $from, 1); | ||
| array_splice($this->queueNames, $to, 0, $out); | ||
| } | ||
|
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| protected function migrateExpiredMessages(array $queueNames): void | ||
| { | ||
| $now = time(); | ||
|
|
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| foreach ($queueNames as $queueName) { | ||
| $this->getContext()->getRedis() | ||
| ->eval(LuaScripts::migrateExpired(), [$queueName.':delayed', $queueName], [$now]); | ||
|
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| $this->getContext()->getRedis() | ||
| ->eval(LuaScripts::migrateExpired(), [$queueName.':reserved', $queueName], [$now]); | ||
| } | ||
| } | ||
| } |
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