8000 [Messenger] Select alternatives on missing receiver arg or typo by yceruto · Pull Request #27230 · symfony/symfony · GitHub
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[Messenger] Select alternatives on missing receiver arg or typo #27230

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Merged
merged 1 commit into from
May 17, 2018
Merged

[Messenger] Select alternatives on missing receiver arg or typo #27230

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Select alternatives on missing receiver arg or typo
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@yceruto
yceruto committed May 11, 2018
commit 54c2541d94b38e4af9ca167e5864515cf3d16614
49 changes: 45 additions & 4 deletions src/Symfony/Component/Messenger/Command/ConsumeMessagesCommand.php
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Expand Up @@ -19,6 +19,7 @@
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Style\SymfonyStyle;
use Symfony\Component\Messenger\MessageBusInterface;
use Symfony\Component\Messenger\Transport\Enhancers\StopWhenMemoryUsageIsExceededReceiver;
use Symfony\Component\Messenger\Transport\Enhancers\StopWhenMessageCountIsExceededReceiver;
Expand All @@ -37,14 +38,14 @@ class ConsumeMessagesCommand extends Command
private $bus;
private $receiverLocator;
private $logger;
private $defaultReceiverName;
private $receiverNames;

public function __construct(MessageBusInterface $bus, ContainerInterface $receiverLocator, LoggerInterface $logger = null, string $defaultReceiverName = null)
public function __construct(MessageBusInterface $bus, ContainerInterface $receiverLocator, LoggerInterface $logger = null, array $receiverNames = array())
{
$this->bus = $bus;
$this->receiverLocator = $receiverLocator;
$this->logger = $logger;
$this->defaultReceiverName = $defaultReceiverName;
$this->receiverNames = $receiverNames;

parent::__construct();
}
Expand All @@ -54,9 +55,11 @@ public function __construct(MessageBusInterface $bus, ContainerInterface $receiv
*/
protected function configure(): void
{
$defaultReceiverName = 1 === \count($this->receiverNames) ? current($this->receiverNames) : null;

$this
->setDefinition(array(
new InputArgument('receiver', $this->defaultReceiverName ? InputArgument::OPTIONAL : InputArgument::REQUIRED, 'Name of the receiver', $this->defaultReceiverName),
new InputArgument('receiver', $defaultReceiverName ? InputArgument::OPTIONAL : InputArgument::REQUIRED, 'Name of the receiver', $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'),
Expand All @@ -83,6 +86,27 @@ protected function configure(): void
;
}

/**
* {@inheritdoc}
*/
protected function interact(InputInterface $input, OutputInterface $output)
{
if (!$this->receiverNames || $this->receiverLocator->has($receiverName = $input->getArgument('receiver'))) {
return;
}

$style = new SymfonyStyle($input, $output);
if (null === $receiverName) {
$style->block('Missing receiver argument.', null, 'error', ' ', true);
$input->setArgument('receiver', $style->choice('Select one of the available receivers', $this->receiverNames));
} elseif ($alternatives = $this->findAlternatives($receiverName, $this->receiverNames)) {
$style->block(sprintf('Receiver "%s" is not defined.', $receiverName), null, 'error', ' ', true);
if ($style->confirm(sprintf('Do you want to receive from "%s" instead? ', $alternatives[0]), false)) {
$input->setArgument('receiver', $alternatives[0]);
}
}
}

/**
* {@inheritdoc}
*/
Expand Down Expand Up @@ -134,4 +158,21 @@ private function convertToBytes(string $memoryLimit): int

return $max;
}

private function findAlternatives($name, array $collection)
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Isn't this already somewhere else? Can't we share instead of copy? Maybe at least reference the other occurrences if it has been pasted so we know when maintaining it?

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Yes, from debug command of the Form component, but still there is other places where similar procedure has been used, probably a trait could be created for such cases.

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We don"t have a central place for such logic for 2 reasons: it's small enough and we don't want to create a "util" component.

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@fabpot a good practice can be to add a comment that refers to the place it was copy/pasted from.

{
$alternatives = array();
foreach ($collection as $item) {
$lev = levenshtein($name, $item);
if ($lev <= \strlen($name) / 3 || false !== strpos($item, $name)) {
$alternatives[$item] = isset($alternatives[$item]) ? $alternatives[$item] - $lev : $lev;
}
}

$threshold = 1e3;
$alternatives = array_filter($alternatives, function ($lev) use ($threshold) { return $lev < 2 * $threshold; });
ksort($alternatives, SORT_NATURAL | SORT_FLAG_CASE);

return array_keys($alternatives);
}
}
11 changes: 7 additions & 4 deletions src/Symfony/Component/Messenger/DependencyInjection/MessengerPass.php
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Expand Up @@ -166,9 +166,8 @@ private function guessHandledClasses(\ReflectionClass $handlerClass, string $ser
private function registerReceivers(ContainerBuilder $container)
{
$receiverMapping = array();
$taggedReceivers = $container->findTaggedServiceIds($this->receiverTag);

foreach ($taggedReceivers as $id => $tags) {
foreach ($container->findTaggedServiceIds($this->receiverTag) as $id => $tags) {
$receiverClass = $container->findDefinition($id)->getClass();
if (!is_subclass_of($receiverClass, ReceiverInterface::class)) {
throw new RuntimeException(sprintf('Invalid receiver "%s": class "%s" must implement interface "%s".', $id, $receiverClass, ReceiverInterface::class));
Expand All @@ -183,8 +182,12 @@ private function registerReceivers(ContainerBuilder $container)
}
}

if (1 === \count($taggedReceivers) && $container->hasDefinition('console.command.messenger_consume_messages')) {
$container->getDefinition('console.command.messenger_consume_messages')->replaceArgument(3, (string) current($receiverMapping));
if ($container->hasDefinition('console.command.messenger_consume_messages')) {
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Relates to above, I think we should only have the default defined if there is just one like in removed lines (but still inject all names independently for interactivity)

$receiverNames = array();
foreach ($receiverMapping as $name => $reference) {
$receiverNames[(string) $reference] = $name;
}
$container->getDefinition('console.command.messenger_consume_messages')->replaceArgument(3, array_values($receiverNames));
}

$container->getDefinition('messenger.receiver_locator')->replaceArgument(0, $receiverMapping);
Expand Down
6 changes: 3 additions & 3 deletions src/Symfony/Component/Messenger/Tests/Command/ConsumeMessagesCommandTest.php
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Expand Up @@ -20,15 +20,15 @@ class ConsumeMessagesCommandTest extends TestCase
{
public function testConfigurationWithDefaultReceiver()
{
$command = new ConsumeMessagesCommand($this->createMock(MessageBus::class), $this->createMock(ServiceLocator::class), null, 'messenger.transport.amqp');
$command = new ConsumeMessagesCommand($this->createMock(MessageBus::class), $this->createMock(ServiceLocator::class), null, array('amqp'));
$inputArgument = $command->getDefinition()->getArgument('receiver');
$this->assertFalse($inputArgument->isRequired());
$this->assertSame('messenger.transport.amqp', $inputArgument->getDefault());
$this->assertSame('amqp', $inputArgument->getDefault());
}

public function testConfigurationWithoutDefaultReceiver()
{
$command = new ConsumeMessagesCommand($this->createMock(MessageBus::class), $this->createMock(ServiceLocator::class));
$command = new ConsumeMessagesCommand($this->createMock(MessageBus::class), $this->createMock(ServiceLocator::class), null, array('amqp', 'dummy'));
$inputArgument = $command->getDefinition()->getArgument('receiver');
$this->assertTrue($inputArgument->isRequired());
$this->assertNull($inputArgument->getDefault());
Expand Down
21 changes: 2 additions & 19 deletions src/Symfony/Component/Messenger/Tests/DependencyInjection/MessengerPassTest.php
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Expand Up @@ -118,24 +118,7 @@ public function testItRegistersReceiversWithoutTagName()
$this->assertEquals(array(AmqpReceiver::class => new Reference(AmqpReceiver::class)), $container->getDefinition('messenger.receiver_locator')->getArgument(0));
}

public function testItRegistersOneReceiverAndSetsTheDefaultOneOnTheCommand()
{
$container = $this->getContainerBuilder();
$container->register('console.command.messenger_consume_messages', ConsumeMessagesCommand::class)->setArguments(array(
new Reference('message_bus'),
new Reference('messenger.receiver_locator'),
null,
null,
));

$container->register(AmqpReceiver::class, AmqpReceiver::class)->addTag('messenger.receiver', array('alias' => 'amqp'));

(new MessengerPass())->process($container);

$this->assertSame(AmqpReceiver::class, $container->getDefinition('console.command.messenger_consume_messages')->getArgument(3));
}

public function testItRegistersMultipleReceiversAndDoesNotSetTheDefaultOneOnTheCommand()
public function testItRegistersMultipleReceiversAndSetsTheReceiverNamesOnTheCommand()
{
$container = $this->getContainerBuilder();
$container->register('console.command.messenger_consume_messages', ConsumeMessagesCommand::class)->setArguments(array(
Expand All @@ -150,7 +133,7 @@ public function testItRegistersMultipleReceiversAndDoesNotSetTheDefaultOneOnTheC

(new MessengerPass())->process($container);

$this->assertNull($container->getDefinition('console.command.messenger_consume_messages')->getArgument(3));
$this->assertSame(array('amqp', 'dummy'), $container->getDefinition('console.command.messenger_consume_messages')->getArgument(3));
}

public function testItRegistersSenders()
Expand Down
0