diff --git a/src/Symfony/Component/Messenger/Command/ConsumeMessagesCommand.php b/src/Symfony/Component/Messenger/Command/ConsumeMessagesCommand.php
index 4fe905df7dbf8..2e225fcc6e05d 100644
--- a/src/Symfony/Component/Messenger/Command/ConsumeMessagesCommand.php
+++ b/src/Symfony/Component/Messenger/Command/ConsumeMessagesCommand.php
@@ -31,6 +31,7 @@
use Symfony\Component\Messenger\EventListener\StopWorkerOnMemoryLimitListener;
use Symfony\Component\Messenger\EventListener\StopWorkerOnMessageLimitListener;
use Symfony\Component\Messenger\EventListener\StopWorkerOnTimeLimitListener;
+use Symfony\Component\Messenger\Exception\InvalidArgumentException;
use Symfony\Component\Messenger\RoutableMessageBus;
use Symfony\Component\Messenger\Worker;
@@ -79,6 +80,7 @@ protected function configure(): void
new InputOption('bus', 'b', InputOption::VALUE_REQUIRED, 'Name of the bus to which received messages should be dispatched (if not passed, bus is determined automatically)'),
new InputOption('queues', null, InputOption::VALUE_REQUIRED | InputOption::VALUE_IS_ARRAY, 'Limit receivers to only consume from the specified queues'),
new InputOption('no-reset', null, InputOption::VALUE_NONE, 'Do not reset container services after each message'),
+ new InputOption('strategy', null, InputOption::VALUE_REQUIRED, 'The strategy to use to consume from the different receivers: "priority", "ordered" or "random"', 'priority'),
])
->setHelp(<<<'EOF'
The %command.name% command consumes messages and dispatches them to the message bus.
@@ -212,10 +214,15 @@ protected function execute(InputInterface $input, OutputInterface $output): int
}
$bus = $input->getOption('bus') ? $this->routableBus->getMessageBus($input->getOption('bus')) : $this->routableBus;
+ $strategies = ['priority', 'ordered', 'random'];
+ if (!\in_array($input->getOption('strategy'), $strategies, true)) {
+ throw new InvalidArgumentException(sprintf('The "%s" strategy does not exist. Available strategies are: "%s".', $input->getOption('strategy'), implode('", "', $strategies)));
+ }
$worker = new Worker($receivers, $bus, $this->eventDispatcher, $this->logger);
$options = [
'sleep' => $input->getOption('sleep') * 1000000,
+ 'strategy' => $input->getOption('strategy'),
];
if ($queues = $input->getOption('queues')) {
$options['queues'] = $queues;
diff --git a/src/Symfony/Component/Messenger/Worker.php b/src/Symfony/Component/Messenger/Worker.php
index 247a0eadf25ec..9fc03cb253c09 100644
--- a/src/Symfony/Component/Messenger/Worker.php
+++ b/src/Symfony/Component/Messenger/Worker.php
@@ -38,6 +38,10 @@
*/
class Worker
{
+ private const STRATEGY_PRIORITY = 'priority';
+ private const STRATEGY_ORDERED = 'ordered';
+ private const STRATEGY_RANDOM = 'random';
+
private array $receivers;
private MessageBusInterface $bus;
private ?EventDispatcherInterface $eventDispatcher;
@@ -73,6 +77,7 @@ public function run(array $options = []): void
{
$options = array_merge([
'sleep' => 1000000,
+ 'strategy' => self::STRATEGY_PRIORITY,
], $options);
$queueNames = $options['queues'] ?? null;
@@ -92,6 +97,8 @@ public function run(array $options = []): void
while (!$this->shouldStop) {
$envelopeHandled = false;
$envelopeHandledStart = microtime(true);
+ $receivers = $this->receivers;
+ $receivers = self::STRATEGY_RANDOM === $options['strategy'] ? shuffle($receivers) : $receivers;
foreach ($this->receivers as $transportName => $receiver) {
if ($queueNames) {
$envelopes = $receiver->getFromQueues($queueNames);
@@ -113,7 +120,7 @@ public function run(array $options = []): void
// after handling a single receiver, quit and start the loop again
// this should prevent multiple lower priority receivers from
// blocking too long before the higher priority are checked
- if ($envelopeHandled) {
+ if ($envelopeHandled && self::STRATEGY_PRIORITY === $options['strategy']) {
break;
}
}
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