/**
* Flushes all queue changes to the server.
*
* @param \SplQueue $queue
*/
public function flush(\SplQueue $queue)
{
if ($this->locked) {
$this->memcache->delete('queue.manager');
$this->memcache->set('queue.manager', serialize($queue));
$this->locked = false;
$this->memcache->delete('queue.manager.lock');
} else {
$this->eventDispatcher->dispatch('queue.manager.flushed', new ManagerFlushedEvent(ManagerFlushedEvent::STATUS_FLUSH_FAILED_NOLOCK));
}
}
/**
* Registers all event listeners related to the manager.
*
* @param bool $verbose
*/
public function registerListeners($verbose = false)
{
$output = $this->output;
$this->eventDispatcher->addListener('queue.process_queued', function (ProcessQueuedEvent $event) use($verbose, &$output) {
$output->writeln('<info>Process \'' . $event->getId() . '\' was added to the queue.</info>');
});
$this->eventDispatcher->addListener('queue.process_failed', function (ProcessFinishedEvent $event) use(&$output) {
$status = [2 => 'TIMEOUT', 3 => 'ERROR IN RESPONSE'];
$this->output->writeln('<error>Process \'' . $event->getName() . '\' was killed with an error.</error>');
$this->output->writeln('<error>Status: ' . $status[$event->getStatus()] . '</error>');
$this->memcache->delete('queue.process.processlist.' . $event->getName());
});
$this->eventDispatcher->addListener('queue.manager.retrieved', function (ManagerRetrievedEvent $event) use($verbose, &$output) {
$errors = [ManagerRetrievedEvent::RETRIEVAL_STATUS_FAILED => 'Failed to retrieve the manager. Key not found.'];
$warnings = [ManagerRetrievedEvent::RETRIEVAL_STATUS_FAILED_LOCKED => 'Attempted to retrieve the manager, but it was locked. Retrying in a few moments.'];
if (isset($errors[$event->getStatus()])) {
$this->output->writeln('<error>' . $errors[$event->getStatus()] . '</error>');
}
if (isset($warnings[$event->getStatus()]) && $verbose) {
$this->output->writeln('<bg=yellow>' . $warnings[$event->getStatus()] . '</>');
}
});
$this->eventDispatcher->addListener('queue.manager.flushed', function (ManagerFlushedEvent $event) use($verbose, &$output) {
switch ($event->getStatus()) {
case ManagerFlushedEvent::STATUS_FLUSH_FAILED_NOLOCK:
$output->writeln('<error>Could not flush the queue to the queue server. ' . 'Reason: the queue manager is locked.</error>');
break;
case ManagerFlushedEvent::STATUS_FLUSH_FAILED:
$output->writeln('<error>Could not flush the queue to the queue server. ' . 'Reason: the server is unreachable.');
break;
case ManagerRetrievedEvent::RETRIEVAL_STATUS_SUCCESS:
if ($verbose) {
$output->writeln('<info>The queue manager has been flushed.</info>');
}
break;
}
});
$this->eventDispatcher->addListener('queue.process_ended', function (ProcessFinishedEvent $event) use($verbose, &$output) {
$output->writeln('<info>Process \'' . $event->getName() . '\' has finished.</info>');
if ($verbose && !empty($event->getOutput())) {
$output->writeln('Output: ' . $event->getOutput());
}
$this->memcache->delete('queue.process.processlist.' . $event->getName());
});
$this->eventDispatcher->addListener('queue.process_started', function (ProcessStartedEvent $event) use($verbose, &$output) {
$output->writeln('<info>Process \'' . $event->getName() . '\' has just been dispatched.</info>');
});
}
