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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Messenger\Command;
use Psr\Container\ContainerInterface;
use Psr\Log\LoggerInterface;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Exception\InvalidOptionException;
use Symfony\Component\Console\Exception\RuntimeException;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\ConsoleOutputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Question\ChoiceQuestion;
use Symfony\Component\Console\Style\SymfonyStyle;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\Messenger\EventListener\StopWorkerOnMemoryLimitListener;
use Symfony\Component\Messenger\EventListener\StopWorkerOnMessageLimitListener;
use Symfony\Component\Messenger\EventListener\StopWorkerOnTimeLimitListener;
use Symfony\Component\Messenger\RoutableMessageBus;
use Symfony\Component\Messenger\Worker;
/**
* @author Samuel Roze <samuel.roze@gmail.com>
*/
class ConsumeMessagesCommand extends Command
{
protected static $defaultName = 'messenger:consume';
private $routableBus;
private $receiverLocator;
private $logger;
private $receiverNames;
private $eventDispatcher;
/**
* @param RoutableMessageBus $routableBus
*/
public function __construct($routableBus, ContainerInterface $receiverLocator, EventDispatcherInterface $eventDispatcher, LoggerInterface $logger = null, array $receiverNames = [])
{
if ($routableBus instanceof ContainerInterface) {
@trigger_error(sprintf('Passing a "%s" instance as first argument to "%s()" is deprecated since Symfony 4.4, pass a "%s" instance instead.', ContainerInterface::class, __METHOD__, RoutableMessageBus::class), \E_USER_DEPRECATED);
$routableBus = new RoutableMessageBus($routableBus);
} elseif (!$routableBus instanceof RoutableMessageBus) {
throw new \TypeError(sprintf('The first argument must be an instance of "%s".', RoutableMessageBus::class));
}
$this->routableBus = $routableBus;
$this->receiverLocator = $receiverLocator;
$this->logger = $logger;
$this->receiverNames = $receiverNames;
$this->eventDispatcher = $eventDispatcher;
parent::__construct();
}
/**
* {@inheritdoc}
*/
protected function configure(): void
{
$defaultReceiverName = 1 === \count($this->receiverNames) ? current($this->receiverNames) : null;
$this
->setDefinition([
new InputArgument('receivers', InputArgument::IS_ARRAY, 'Names of the receivers/transports to consume in order of priority', $defaultReceiverName ? [$defaultReceiverName] : []),
new InputOption('limit', 'l', InputOption::VALUE_REQUIRED, 'Limit the number of received messages'),
new InputOption('memory-limit', 'm', InputOption::VALUE_REQUIRED, 'The memory limit the worker can consume'),
new InputOption('time-limit', 't', InputOption::VALUE_REQUIRED, 'The time limit in seconds the worker can run'),
new InputOption('sleep', null, InputOption::VALUE_REQUIRED, 'Seconds to sleep before asking for new messages after no messages were found', 1),
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)'),
])
->setDescription('Consume messages')
->setHelp(<<<'EOF'
The <info>%command.name%</info> command consumes messages and dispatches them to the message bus.
<info>php %command.full_name% <receiver-name></info>
To receive from multiple transports, pass each name:
<info>php %command.full_name% receiver1 receiver2</info>
Use the --limit option to limit the number of messages received:
<info>php %command.full_name% <receiver-name> --limit=10</info>
Use the --memory-limit option to stop the worker if it exceeds a given memory usage limit. You can use shorthand byte values [K, M or G]:
<info>php %command.full_name% <receiver-name> --memory-limit=128M</info>
Use the --time-limit option to stop the worker when the given time limit (in seconds) is reached:
<info>php %command.full_name% <receiver-name> --time-limit=3600</info>
Use the --bus option to specify the message bus to dispatch received messages
to instead of trying to determine it automatically. This is required if the
messages didn't originate from Messenger:
<info>php %command.full_name% <receiver-name> --bus=event_bus</info>
EOF
)
;
}
/**
* {@inheritdoc}
*/
protected function interact(InputInterface $input, OutputInterface $output)
{
$io = new SymfonyStyle($input, $output instanceof ConsoleOutputInterface ? $output->getErrorOutput() : $output);
if ($this->receiverNames && !$input->getArgument('receivers')) {
$io->block('Which transports/receivers do you want to consume?', null, 'fg=white;bg=blue', ' ', true);
$io->writeln('Choose which receivers you want to consume messages from in order of priority.');
if (\count($this->receiverNames) > 1) {
$io->writeln(sprintf('Hint: to consume from multiple, use a list of their names, e.g. <comment>%s</comment>', implode(', ', $this->receiverNames)));
}
$question = new ChoiceQuestion('Select receivers to consume:', $this->receiverNames, 0);
$question->setMultiselect(true);
$input->setArgument('receivers', $io->askQuestion($question));
}
if (!$input->getArgument('receivers')) {
throw new RuntimeException('Please pass at least one receiver.');
}
}
/**
* {@inheritdoc}
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
if (str_contains($input->getFirstArgument(), ':consume-')) {
$message = 'The use of the "messenger:consume-messages" command is deprecated since version 4.3 and will be removed in 5.0. Use "messenger:consume" instead.';
@trigger_error($message, \E_USER_DEPRECATED);
$output->writeln(sprintf('<comment>%s</comment>', $message));
}
$receivers = [];
foreach ($receiverNames = $input->getArgument('receivers') as $receiverName) {
if (!$this->receiverLocator->has($receiverName)) {
$message = sprintf('The receiver "%s" does not exist.', $receiverName);
if ($this->receiverNames) {
$message .= sprintf(' Valid receivers are: %s.', implode(', ', $this->receiverNames));
}
throw new RuntimeException($message);
}
$receivers[$receiverName] = $this->receiverLocator->get($receiverName);
}
$stopsWhen = [];
if (null !== $limit = $input->getOption('limit')) {
if (!is_numeric($limit) || 0 >= $limit) {
throw new InvalidOptionException(sprintf('Option "limit" must be a positive integer, "%s" passed.', $limit));
}
$stopsWhen[] = "processed {$limit} messages";
$this->eventDispatcher->addSubscriber(new StopWorkerOnMessageLimitListener($limit, $this->logger));
}
if ($memoryLimit = $input->getOption('memory-limit')) {
$stopsWhen[] = "exceeded {$memoryLimit} of memory";
$this->eventDispatcher->addSubscriber(new StopWorkerOnMemoryLimitListener($this->convertToBytes($memoryLimit), $this->logger));
}
if (null !== $timeLimit = $input->getOption('time-limit')) {
if (!is_numeric($timeLimit) || 0 >= $timeLimit) {
throw new InvalidOptionException(sprintf('Option "time-limit" must be a positive integer, "%s" passed.', $timeLimit));
}
$stopsWhen[] = "been running for {$timeLimit}s";
$this->eventDispatcher->addSubscriber(new StopWorkerOnTimeLimitListener($timeLimit, $this->logger));
}
$stopsWhen[] = 'received a stop signal via the messenger:stop-workers command';
$io = new SymfonyStyle($input, $output instanceof ConsoleOutputInterface ? $output->getErrorOutput() : $output);
$io->success(sprintf('Consuming messages from transport%s "%s".', \count($receivers) > 1 ? 's' : '', implode(', ', $receiverNames)));
if ($stopsWhen) {
$last = array_pop($stopsWhen);
$stopsWhen = ($stopsWhen ? implode(', ', $stopsWhen).' or ' : '').$last;
$io->comment("The worker will automatically exit once it has {$stopsWhen}.");
}
$io->comment('Quit the worker with CONTROL-C.');
if (OutputInterface::VERBOSITY_VERBOSE > $output->getVerbosity()) {
$io->comment('Re-run the command with a -vv option to see logs about consumed messages.');
}
$bus = $input->getOption('bus') ? $this->routableBus->getMessageBus($input->getOption('bus')) : $this->routableBus;
$worker = new Worker($receivers, $bus, $this->eventDispatcher, $this->logger);
$worker->run([
'sleep' => $input->getOption('sleep') * 1000000,
]);
return 0;
}
private function convertToBytes(string $memoryLimit): int
{
$memoryLimit = strtolower($memoryLimit);
$max = ltrim($memoryLimit, '+');
if (str_starts_with($max, '0x')) {
$max = \intval($max, 16);
} elseif (str_starts_with($max, '0')) {
$max = \intval($max, 8);
} else {
$max = (int) $max;
}
switch (substr(rtrim($memoryLimit, 'b'), -1)) {
case 't': $max *= 1024;
// no break
case 'g': $max *= 1024;
// no break
case 'm': $max *= 1024;
// no break
case 'k': $max *= 1024;
}
return $max;
}
}