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<?php |
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namespace OldSound\RabbitMqBundle\Command; |
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use OldSound\RabbitMqBundle\RabbitMq\BaseConsumer as Consumer; |
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use PhpAmqpLib\Exception\AMQPTimeoutException; |
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use Symfony\Component\Console\Input\InputArgument; |
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use Symfony\Component\Console\Input\InputInterface; |
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use Symfony\Component\Console\Input\InputOption; |
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use Symfony\Component\Console\Output\OutputInterface; |
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abstract class BaseConsumerCommand extends BaseRabbitMqCommand |
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{ |
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protected $consumer; |
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/** @var int */ |
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protected $amount; |
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abstract protected function getConsumerService(); |
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public function stopConsumer() |
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{ |
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if ($this->consumer instanceof Consumer) { |
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// Process current message, then halt consumer |
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$this->consumer->forceStopConsumer(); |
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// Halt consumer if waiting for a new message from the queue |
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try { |
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$this->consumer->stopConsuming(); |
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} catch (AMQPTimeoutException $e) {} |
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} |
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} |
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public function restartConsumer() |
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{ |
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// TODO: Implement restarting of consumer |
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} |
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protected function configure() |
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{ |
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parent::configure(); |
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$this |
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->addArgument('name', InputArgument::REQUIRED, 'Consumer Name') |
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->addOption('messages', 'm', InputOption::VALUE_OPTIONAL, 'Messages to consume', '0') |
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->addOption('route', 'r', InputOption::VALUE_OPTIONAL, 'Routing Key', '') |
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->addOption('memory-limit', 'l', InputOption::VALUE_OPTIONAL, 'Allowed memory for this process (MB)', null) |
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->addOption('debug', 'd', InputOption::VALUE_NONE, 'Enable Debugging') |
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->addOption('without-signals', 'w', InputOption::VALUE_NONE, 'Disable catching of system signals') |
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; |
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} |
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protected function initialize(InputInterface $input, OutputInterface $output) |
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{ |
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$this->amount = (int)$input->getOption('messages'); |
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if (0 > $this->amount) { |
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throw new \InvalidArgumentException("The -m option should be null or greater than 0"); |
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} |
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} |
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/** |
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* Executes the current command. |
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* |
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* @param InputInterface $input An InputInterface instance |
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* @param OutputInterface $output An OutputInterface instance |
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* |
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* @return integer 0 if everything went fine, or an error code |
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* |
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* @throws \InvalidArgumentException When the number of messages to consume is less than 0 |
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* @throws \BadFunctionCallException When the pcntl is not installed and option -s is true |
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*/ |
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protected function execute(InputInterface $input, OutputInterface $output) |
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{ |
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if (defined('AMQP_WITHOUT_SIGNALS') === false) { |
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define('AMQP_WITHOUT_SIGNALS', $input->getOption('without-signals')); |
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} |
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if (!AMQP_WITHOUT_SIGNALS && extension_loaded('pcntl')) { |
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if (!function_exists('pcntl_signal')) { |
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throw new \BadFunctionCallException("Function 'pcntl_signal' is referenced in the php.ini 'disable_functions' and can't be called."); |
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} |
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pcntl_signal(SIGTERM, array(&$this, 'stopConsumer')); |
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pcntl_signal(SIGINT, array(&$this, 'stopConsumer')); |
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pcntl_signal(SIGHUP, array(&$this, 'restartConsumer')); |
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} |
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if (defined('AMQP_DEBUG') === false) { |
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define('AMQP_DEBUG', (bool) $input->getOption('debug')); |
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} |
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$this->initConsumer($input); |
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return $this->consumer->consume($this->amount); |
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} |
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protected function initConsumer(InputInterface $input) |
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{ |
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$this->consumer = $this->getContainer() |
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->get(sprintf($this->getConsumerService(), $input->getArgument('name'))); |
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if ($input->hasOption('memory-limit')) { |
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$memoryLimit = (int)$input->getOption('memory-limit'); |
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if ($memoryLimit > 0) { |
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$this->consumer->setMemoryLimit($memoryLimit); |
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} |
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} |
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$this->consumer->setRoutingKey($input->getOption('route')); |
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} |
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} |
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php-amqplib /
RabbitMqBundle
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