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Methods
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Classes
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| Name | Lines | Methods | CRAP | ||||
|---|---|---|---|---|---|---|---|
| __construct | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | ||
| registerHandler | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | ||
| runOnce | 100.00% | 20 / 20 | 100.00% | 1 / 1 | 5 | ||
| run | 100.00% | 14 / 14 | 100.00% | 1 / 1 | 5 | ||
| decodeMessage | 66.66% | 10 / 15 | 0.00% | 0 / 1 | 8.81 | ||
| 28 | class Worker | |
| 29 | { | |
| 30 | private const int MAX_RETRIES = 3; | |
| 31 | ||
| 32 | /** @var array<string, callable> */ | |
| 33 | private array $handlers = []; | |
| 34 | ||
| 35 | public function __construct( | |
| 36 | private readonly DatabaseTransport $databaseTransport, | |
| 37 | ) { | |
| 38 | } | |
| 39 | ||
| 40 | public function registerHandler(string $messageClass, callable $handler): void | |
| 41 | { | |
| 42 | $this->handlers[$messageClass] = $handler; | |
| 43 | } | |
| 44 | ||
| 45 | /** | |
| 46 | * Runs one available job. | |
| 47 | */ | |
| 48 | public function runOnce(string $queue = 'default'): bool | |
| 49 | { | |
| 50 | $job = $this->databaseTransport->reserve($queue); | |
| 51 | if ($job === null) { | |
| 52 | return false; | |
| 53 | } | |
| 54 | ||
| 55 | $jobId = (int) $job['id']; | |
| 56 | $headers = $job['headers']; | |
| 57 | ||
| 58 | try { | |
| 59 | $message = $this->decodeMessage($job['body']); | |
| 60 | $handler = $this->handlers[$message::class] ?? null; | |
| 61 | ||
| 62 | if (!is_callable($handler)) { | |
| 63 | throw new RuntimeException('No queue handler registered for message class: ' . $message::class); | |
| 64 | } | |
| 65 | ||
| 66 | $handler($message); | |
| 67 | $this->databaseTransport->acknowledge($jobId); | |
| 68 | ||
| 69 | return true; | |
| 70 | } catch (Throwable) { | |
| 71 | $attempts = (int) ($headers['attempts'] ?? 0) + 1; | |
| 72 | $headers['attempts'] = $attempts; | |
| 73 | ||
| 74 | if ($attempts >= self::MAX_RETRIES) { | |
| 75 | $this->databaseTransport->acknowledge($jobId); | |
| 76 | return true; | |
| 77 | } | |
| 78 | ||
| 79 | $this->databaseTransport->release($jobId, new DateTimeImmutable('+60 seconds'), $headers); | |
| 80 | return true; | |
| 81 | } | |
| 82 | } | |
| 83 | ||
| 84 | /** | |
| 85 | * Runs until the queue is empty or the maximum number of jobs has been processed. | |
| 86 | */ | |
| 87 | public function run(int $maxJobs = 0, string $queue = 'default'): int | |
| 88 | { | |
| 89 | $processed = 0; | |
| 90 | ||
| 91 | while ($maxJobs === 0 || $processed < $maxJobs) { | |
| 92 | try { | |
| 93 | if (!$this->runOnce($queue)) { | |
| 94 | break; | |
| 95 | } | |
| 96 | ||
| 97 | ++$processed; | |
| 98 | } catch (Throwable $exception) { | |
| 99 | error_log(sprintf( | |
| 100 | 'Queue worker error in run() while processing queue "%s": %s in %s:%d', | |
| 101 | $queue, | |
| 102 | $exception->getMessage(), | |
| 103 | $exception->getFile(), | |
| 104 | $exception->getLine(), | |
| 105 | )); | |
| 106 | } | |
| 107 | } | |
| 108 | ||
| 109 | return $processed; | |
| 110 | } | |
| 111 | ||
| 112 | private function decodeMessage(string $body): QueueMessageInterface | |
| 113 | { | |
| 114 | $decoded = json_decode($body, associative: true); | |
| 115 | if (!is_array($decoded) || !array_key_exists('class', $decoded)) { | |
| 116 | throw new RuntimeException('Queue job body has an invalid format.'); | |
| 117 | } | |
| 118 | ||
| 119 | $messageClass = (string) $decoded['class']; | |
| 120 | $rawPayload = is_array($decoded['payload'] ?? null) ? $decoded['payload'] : []; | |
| 121 | $payload = []; | |
| 122 | foreach ($rawPayload as $payloadKey => $payloadValue) { | |
| 123 | $payload[(string) $payloadKey] = $payloadValue; | |
| 124 | } | |
| 125 | ||
| 126 | if (!class_exists($messageClass)) { | |
| 127 | throw new RuntimeException('Queue job references unknown message class: ' . $messageClass); | |
| 128 | } | |
| 129 | ||
| 130 | if (!is_subclass_of($messageClass, QueueMessageInterface::class)) { | |
| 131 | throw new RuntimeException( | |
| 132 | 'Queue message class ' . $messageClass . ' does not implement ' . QueueMessageInterface::class, | |
| 133 | ); | |
| 134 | } | |
| 135 | ||
| 136 | /** @var class-string<QueueMessageInterface> $messageClass */ | |
| 137 | return $messageClass::fromArray($payload); | |
| 138 | } | |
| 139 | } |