symfony · alli83 · Jan 31, 2024 · withinboredom · Aug 15, 2024 · withinboredom
diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
@@ -11,6 +11,7 @@
 
 namespace Symfony\Bundle\FrameworkBundle\DependencyInjection;
 
+use Amp\Parallel\Worker\Task;
 use Composer\InstalledVersions;
 use Http\Client\HttpAsyncClient;
 use Http\Client\HttpClient;
@@ -113,6 +114,7 @@
 use Symfony\Component\Messenger\MessageBus;
 use Symfony\Component\Messenger\MessageBusInterface;
 use Symfony\Component\Messenger\Middleware\RouterContextMiddleware;
+use Symfony\Component\Messenger\ParallelMessageBus;
 use Symfony\Component\Messenger\Transport\Serialization\SerializerInterface;
 use Symfony\Component\Messenger\Transport\TransportFactoryInterface as MessengerTransportFactoryInterface;
 use Symfony\Component\Messenger\Transport\TransportInterface;
@@ -2090,6 +2092,10 @@ private function registerMessengerConfiguration(array $config, ContainerBuilder
 
         $loader->load('messenger.php');
 
+        if (!class_exists(ParallelMessageBus::class)) {
+            $container->removeDefinition('parallel_bus');
+        }
+
         if (!interface_exists(DenormalizerInterface::class)) {
             $container->removeDefinition('serializer.normalizer.flatten_exception');
         }
@@ -2161,7 +2167,12 @@ private function registerMessengerConfiguration(array $config, ContainerBuilder
 
             if ($busId === $config['default_bus']) {
                 $container->setAlias('messenger.default_bus', $busId)->setPublic(true);
-                $container->setAlias(MessageBusInterface::class, $busId);
+
+                $messageBusAlias = $container->setAlias(MessageBusInterface::class, $busId);
+
+                if (class_exists(Task::class)) {
+                    $messageBusAlias->setPublic(true);
+                }
             } else {
                 $container->registerAliasForArgument($busId, MessageBusInterface::class);
             }

diff --git a/src/Symfony/Bundle/FrameworkBundle/Resources/config/messenger.php b/src/Symfony/Bundle/FrameworkBundle/Resources/config/messenger.php
@@ -33,6 +33,7 @@
 use Symfony\Component\Messenger\Middleware\SendMessageMiddleware;
 use Symfony\Component\Messenger\Middleware\TraceableMiddleware;
 use Symfony\Component\Messenger\Middleware\ValidationMiddleware;
+use Symfony\Component\Messenger\ParallelMessageBus;
 use Symfony\Component\Messenger\Retry\MultiplierRetryStrategy;
 use Symfony\Component\Messenger\RoutableMessageBus;
 use Symfony\Component\Messenger\Transport\InMemory\InMemoryTransportFactory;
@@ -54,6 +55,7 @@
                 abstract_arg('per message senders map'),
                 abstract_arg('senders service locator'),
             ])
+
         ->set('messenger.middleware.send_message', SendMessageMiddleware::class)
             ->abstract()
             ->args([
@@ -134,6 +136,15 @@
             ])
             ->tag('messenger.transport_factory')
 
+        ->set('parallel_bus', ParallelMessageBus::class)
+            ->args([
+                [],
+                param('kernel.environment'),
+                param('kernel.debug'),
+                param('kernel.project_dir'),
+            ])
+            ->tag('messenger.bus')
+
         ->set('messenger.transport.in_memory.factory', InMemoryTransportFactory::class)
             ->args([
                 service('clock')->nullOnInvalid(),

diff --git a/src/Symfony/Component/Messenger/Command/ConsumeMessagesCommand.php b/src/Symfony/Component/Messenger/Command/ConsumeMessagesCommand.php
@@ -75,6 +75,7 @@ protected function configure(): void
                 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('all', null, InputOption::VALUE_NONE, 'Consume messages from all receivers'),
+                new InputOption('parallel-limit', 'p', InputOption::VALUE_REQUIRED, 'The number of concurrent processes', 10),
             ])
             ->setHelp(<<<'EOF'
 The <info>%command.name%</info> command consumes messages and dispatches them to the message bus.
@@ -240,6 +241,8 @@ protected function execute(InputInterface $input, OutputInterface $output): int
             $options['queues'] = $queues;
         }
 
+        $options['parallel-limit'] = $input->getOption('parallel-limit');
+
         try {
             $this->worker->run($options);
         } finally {

diff --git a/src/Symfony/Component/Messenger/DispatchTask.php b/src/Symfony/Component/Messenger/DispatchTask.php
@@ -0,0 +1,88 @@
+<?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;
+
+use Amp\Cache\LocalCache;
+use Amp\Cancellation;
+use Amp\Parallel\Worker\Task;
+use Amp\Sync\Channel;
+use App\Kernel;
+use Psr\Container\ContainerInterface;
+use Symfony\Component\Dotenv\Dotenv;
+use Symfony\Component\Messenger\Stamp\AckStamp;
+
+class DispatchTask implements Task
+{
+    private static ?LocalCache $cache = null;
+
+    public function __construct(
+        private Envelope $envelope,
+        private array $stamps,
+        private readonly string $env,
+        private readonly bool $isDebug,
+        private readonly string $projectDir,
+    ) {
+        if (!class_exists(LocalCache::class)) {
+            throw new \LogicException(\sprintf('Package "amp/cache" is required to use the "%s". Try running "composer require amphp/cache".', LocalCache::class));
+        }
+    }
+
+    public function run(Channel $channel, Cancellation $cancellation): mixed
+    {
+        $container = $this->getContainer();
+        $envelope = $this->dispatch($container, $channel);
+
+        return $envelope->withoutStampsOfType(AckStamp::class);
+    }
+
+    private function dispatch(ContainerInterface $container, $channel)
+    {
+        $messageBus = $container->get(MessageBusInterface::class);
+
+        return $messageBus->dispatch($this->envelope, $this->stamps);
+    }
+
+    private function getContainer()
+    {
+        $cache = self::$cache ??= new LocalCache();
+        $container = $cache->get('cache-container');
+
+        // if not in cache, create container
+        if (!$container) {
+            if (!method_exists(Dotenv::class, 'bootEnv')) {
+                throw new \LogicException(\sprintf("Method bootEnv de \"%s\" doesn't exist.", Dotenv::class));
+            }
+
+            (new Dotenv())->bootEnv($this->projectDir.'/.env');
+
+            if (!class_exists(Kernel::class) && !isset($_ENV['KERNEL_CLASS'])) {
+                throw new \LogicException('You must set the KERNEL_CLASS environment variable to the fully-qualified class name of your Kernel in .env or have "%s" class.', Kernel::class);
+            } elseif (isset($_ENV['KERNEL_CLASS'])) {
+                $kernel = new $_ENV['KERNEL_CLASS']($this->env, $this->isDebug);
+            } else {
+                $kernel = new Kernel($this->env, $this->isDebug);
+            }
+
+            $kernel->boot();
+
+            $container = $kernel->getContainer();
+            $cache->set('cache-container', $container);
+        }
+
+        return $container;
+    }
+
+    public function getEnvelope(): Envelope
+    {
+        return $this->envelope;
+    }
+}
diff --git a/src/Symfony/Component/Messenger/Middleware/HandleMessageMiddleware.php b/src/Symfony/Component/Messenger/Middleware/HandleMessageMiddleware.php
@@ -20,6 +20,7 @@
 use Symfony\Component\Messenger\Handler\HandlerDescriptor;
 use Symfony\Component\Messenger\Handler\HandlersLocatorInterface;
 use Symfony\Component\Messenger\Stamp\AckStamp;
+use Symfony\Component\Messenger\Stamp\BusNameStamp;
 use Symfony\Component\Messenger\Stamp\FlushBatchHandlersStamp;
 use Symfony\Component\Messenger\Stamp\HandledStamp;
 use Symfony\Component\Messenger\Stamp\HandlerArgumentsStamp;
@@ -64,6 +65,10 @@ public function handle(Envelope $envelope, StackInterface $stack): Envelope
 
                 /** @var AckStamp $ackStamp */
                 if ($batchHandler && $ackStamp = $envelope->last(AckStamp::class)) {
+                    if ($envelope->last(BusNameStamp::class) && 'parallel_bus' === $envelope->last(BusNameStamp::class)->getBusName()) {
+                        throw new HandlerFailedException($envelope, [new LogicException("Parallel bus can't be used for batch messages")]);
+                    }
+
                     $ack = new Acknowledger(get_debug_type($batchHandler), static function (?\Throwable $e = null, $result = null) use ($envelope, $ackStamp, $handlerDescriptor) {
                         if (null !== $e) {
                             $e = new HandlerFailedException($envelope, [$handlerDescriptor->getName() => $e]);
@@ -75,7 +80,6 @@ public function handle(Envelope $envelope, StackInterface $stack): Envelope
                     });
 
                     $result = $this->callHandler($handler, $message, $ack, $envelope->last(HandlerArgumentsStamp::class));
-
                     if (!\is_int($result) || 0 > $result) {
                         throw new LogicException(\sprintf('A handler implementing BatchHandlerInterface must return the size of the current batch as a positive integer, "%s" returned from "%s".', \is_int($result) ? $result : get_debug_type($result), get_debug_type($batchHandler)));
                     }

diff --git a/src/Symfony/Component/Messenger/ParallelMessageBus.php b/src/Symfony/Component/Messenger/ParallelMessageBus.php
@@ -0,0 +1,53 @@
+<?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;
+
+use Amp\Parallel\Worker\ContextWorkerPool;
+use Symfony\Component\Messenger\Stamp\FutureStamp;
+
+use function Amp\async;
+use function Amp\Parallel\Worker\workerPool;
+
+/**
+ * Using this bus will enable concurrent message processing without the need for multiple workers
+ * using multiple processes or threads.
+ * It requires a ZTS build of PHP 8.2+ and ext-parallel to create threads; otherwise, it will use processes.
+ */
+final class ParallelMessageBus implements MessageBusInterface
+{
+    public static ?ContextWorkerPool $worker = null;
+
+    public function __construct(
+        private array $something,
+        private readonly string $env,
+        private readonly string $debug,
+        private readonly string $projectdir,
+    ) {
+        if (!class_exists(ContextWorkerPool::class)) {
+            throw new \LogicException(\sprintf('Package "amp/parallel" is required to use the "%s". Try running "composer require amphp/parallel".', self::class));
+        }
+    }
+
+    public function dispatch(object $message, array $stamps = []): Envelope
+    {
+        $worker = (self::$worker ??= workerPool());
+
+        $envelope = Envelope::wrap($message, $stamps);
+        $task = new DispatchTask($envelope, $stamps, $this->env, $this->debug, $this->projectdir);
+
+        $future = async(function () use ($worker, $task) {
+            return $worker->submit($task);
+        });
+
+        return $envelope->with(new FutureStamp($future));
+    }
+}
diff --git a/src/Symfony/Component/Messenger/Stamp/FutureStamp.php b/src/Symfony/Component/Messenger/Stamp/FutureStamp.php
@@ -0,0 +1,31 @@
+<?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\Stamp;
+
+use Amp\Future;
+
+/**
+ * This stamp allows passing the future representing the potential result of the handler,
+ * which is treated as an asynchronous operation,
+ * and will be retrieved later by the worker to ack or nack based on the obtained result.
+ */
+final readonly class FutureStamp implements StampInterface
+{
+    public function __construct(private Future $future)
+    {
+    }
+
+    public function getFuture(): Future
+    {
+        return $this->future;
+    }
+}
diff --git a/src/Symfony/Component/Messenger/Tests/Fixtures/App/.env b/src/Symfony/Component/Messenger/Tests/Fixtures/App/.env
@@ -0,0 +1 @@
+KERNEL_CLASS=Symfony\Component\Messenger\Tests\Fixtures\App\Kernel
diff --git a/src/Symfony/Component/Messenger/Tests/Fixtures/App/Kernel.php b/src/Symfony/Component/Messenger/Tests/Fixtures/App/Kernel.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace Symfony\Component\Messenger\Tests\Fixtures\App;
+
+use Symfony\Bundle\FrameworkBundle\FrameworkBundle;
+use Symfony\Bundle\FrameworkBundle\Kernel\MicroKernelTrait;
+use Symfony\Component\Config\Loader\LoaderInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\HttpKernel\Kernel as SymfonyKernel;
+use Symfony\Component\Messenger\MessageBus;
+use Symfony\Component\Messenger\MessageBusInterface;
+
+class Kernel extends SymfonyKernel
+{
+    use MicroKernelTrait;
+
+    public function registerBundles(): iterable
+    {
+        yield new FrameworkBundle();
+    }
+
+    public function registerContainerConfiguration(LoaderInterface $loader): void
+    {
+        $loader->load(function (ContainerBuilder $container) use ($loader) {
+            $container->loadFromExtension('framework', [
+                'router' => [
+                    'resource' => 'kernel::loadRoutes',
+                    'type' => 'service',
+                ],
+            ]);
+            $container
+                ->register('message.bus', MessageBus::class);
+            $container->setAlias(MessageBusInterface::class, 'message.bus')->setPublic(true);
+        });
+    }
+
+    public function getCacheDir(): string
+    {
+        return sys_get_temp_dir().'/'. \Symfony\Component\HttpKernel\Kernel::VERSION.'/EmptyAppKernel/cache/'.$this->environment;
+    }
+
+    public function getLogDir(): string
+    {
+        return sys_get_temp_dir().'/'.Kernel::VERSION.'/EmptyAppKernel/logs';
-        return sys_get_temp_dir().'/'.Kernel::VERSION.'/EmptyAppKernel/logs';
+        return sys_get_temp_dir().DIRECTORY_SEPARATOR.Kernel::VERSION.DIRECTORY_SEPARATOR.'EmptyAppKernel'.DIRECTORY_SEPARATOR.'logs';
-        return sys_get_temp_dir().'/'.Kernel::VERSION.'/EmptyAppKernel/logs';
+        return sys_get_temp_dir().DIRECTORY_SEPARATOR.Kernel::VERSION.DIRECTORY_SEPARATOR.'EmptyAppKernel'.DIRECTORY_SEPARATOR.'logs';
+    }
+}
diff --git a/src/Symfony/Component/Messenger/Tests/ParallelMessageBusTest.php b/src/Symfony/Component/Messenger/Tests/ParallelMessageBusTest.php
@@ -0,0 +1,53 @@
+<?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\Tests;
+
+use Amp\Parallel\Worker\Worker;
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Messenger\Envelope;
+use Symfony\Component\Messenger\MessageBusInterface;
+use Symfony\Component\Messenger\ParallelMessageBus;
+use Symfony\Component\Messenger\Stamp\FutureStamp;
+use Symfony\Component\Messenger\Tests\Fixtures\DummyMessage;
+
+class ParallelMessageBusTest extends TestCase
+{
+    private string $env = 'dev';
+    private bool $debug = false;
+    private string $projectDir = 'path/to/project';
+
+    public function testItHasTheRightInterface()
+    {
+        if (!class_exists(Worker::class)) {
+            $this->markTestSkipped(\sprintf('%s not available.', Worker::class));
+        }
+
+        $bus = new ParallelMessageBus([], $this->env, $this->debug, $this->projectDir);
+
+        $this->assertInstanceOf(MessageBusInterface::class, $bus);
+    }
+
+    public function testItReturnsWithFutureStamp()
+    {
+        if (!class_exists(Worker::class)) {
+            $this->markTestSkipped(\sprintf('%s not available.', Worker::class));
+        }
+
+        $message = new DummyMessage('Hello');
+
+        $bus = new ParallelMessageBus([], $this->env, $this->debug, $this->projectDir);
+
+        $envelope = $bus->dispatch(new Envelope($message));
+
+        $this->assertInstanceOf(FutureStamp::class, $envelope->last(FutureStamp::class));
+    }
+}
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		KERNEL_CLASS=Symfony\Component\Messenger\Tests\Fixtures\App\Kernel