/** * Executes the current command. * * @param InputInterface $input An InputInterface instance * @param OutputInterface $output An OutputInterface instance * * @return integer 0 if everything went fine, or an error code * * @throws \InvalidArgumentException When the number of messages to consume is less than 0 * @throws \BadFunctionCallException When the pcntl is not installed and option -s is true */ protected function execute(InputInterface $input, OutputInterface $output) { if (defined('AMQP_DEBUG') === false) { define('AMQP_DEBUG', (bool) $input->getOption('debug')); } $this->amount = $input->getOption('messages'); if (0 > $this->amount) { throw new \InvalidArgumentException("The -m option should be null or greater than 0"); } $this->consumer = $this->getConsumerInstance($input); if (!is_null($input->getOption('memory-limit')) && ctype_digit((string) $input->getOption('memory-limit')) && $input->getOption('memory-limit') > 0) { $this->consumer->setMemoryLimit($input->getOption('memory-limit')); } $this->consumer->setRoutingKey($input->getOption('route')); $this->consumer->consume($this->amount); }