ZF-Bernard

Provides zend framework 2, 3 and zend-expressive integrations

Installing

We support installation via composer, note for now you need to set the minimum stability to alpha to install

composer require interactive-solutions/zf-bernard

Usage

To consume a queue:

$ php public/index interactive-solutions:bernard:consume <queueName>

You can also pass the following options:

• --max-runtime=<VALUE>: This will make the consumer shutdown after <VALUE> seconds. PHP_INT_MAX by default
• --stop-on-failure: This will make the consumer halt on unhandled exceptions. Off by default
• --max-messages=<VALUE>: This will make the consumer shutdown after <VALUE> messages are ran. Infinite by default
• --stop-on-empty: This will make the consumer run all the queued messages and then shutdown. Off by default

Normalizers

You can add any normalizer that you wish to use by adding it to the BernardOptions::enabledNormalizers

The default enabled normalizers are

• Bernard\Normalizer\DefaultMessageNormalizer
• Bernard\Normalider\EnvelopeNormalizer
• InteractiveSolutions\Bernard\Normalizer\ExplicitNormalizer

Add to the queue

Create an object extending the AbstractExplicitMessage class and it to the producer queue like this:

final class SomeClass
{
    // This method is called when the task is consumed
    public function __invoke(Message $message)
    {
        // do stuff
    }
}

final class Message extends AbstractExplicitMessage
{
    // various parameters for your application

    /**
     * Message constructor.
     */
    public function __construct(...parameters)
    {
        // Initialize parameters
    }
    
    /**
     * @return string
     */
    public function getName()
    {
        return SomeClass::class;
    }

    // getters for your parameters

    public function getQueue(): string
    {
        return 'some-queue';
    }
}

$producer->produce(new Message(...parameters));

Register the SomeClass under bernard_consumer_manager in the config and you're done.

Hooking into the event manager using a delegate factory

This delegate factory supports both zend framework service manager 2 & 3, read more about it here

Example of introducing the ClearObjectManager event listener

final class EventDispatcherDelegateFactory implements DelegatorFactoryInterface
{
    public function __invoke(ContainerInterface $container, $requestedName, callable $callback, array $options = null)
    {
        /* @var $dispatcher EventDispatcherInterface */
        $dispatcher = $callback();
        $dispatcher->addListener(BernardEvents::ACKNOWLEDGE, $container->get(ClearObjectManager::class));

        return $dispatcher;
    }

    public function createDelegatorWithName(ServiceLocatorInterface $serviceLocator, $name, $requestedName, $callback)
    {
        return $this($serviceLocator, $requestedName, $callback);
    }
}