Programmatic configuration - arquillian.xml

[krisskross]

Hi

Is it possible to provide a arquillian.xml programmatically at runtime from my testcase?

Cheers,

-Kristoffer

[aslak]

Not from your test case..

How would you have wanted this to work? What is your use case?

-aslak-

[krisskross]

I use a remote application server for the testcase and i dont know its ip address, it needs to be discovered.

I visualize a factory class that produces configuration that override arquillian.xml at runtime. This class could be given to arquillian in different ways..

- In @Deployment (maybe a bit intrusive)

- A property or attribute in arquillian.xml.

- An environment variable.

- Service factory.

What do you think?

Cheers,

-Kristoffer

[aslak]

How do you discover it's ip runtime?

If you know the ip at config time, but want access to the containers IP during runtime you can use the @ArquillianResource to inject a URL.

@ArquillianResource

private URL baseURL;

That will give you the base url to the WebContext that has been deployed, e.g. ip:port/mywar.

[krisskross]

We have virtual machines that are allocated dynamically and configures themselves on our infrastructure. We do have control over this mechanism, so a machine could (for example) register itself in a database when it is ready, then developers lease a machine exclusively for a period of time.

So i would have to lookup the machine and its ip address in a database - and tell arquillian where the machine is so that the testcase uploads the jar and executes tests on the correct machine.

[aslak]

Right, this is similar to what we're doing with the JClouds Extension..

You should be able to do what you want by writing a Arquillian Extension.

Something in the lines of this should in theory work..

import org.jboss.arquillian.config.descriptor.api.ContainerDef;
import org.jboss.arquillian.config.descriptor.impl.ContainerDefImpl;
import org.jboss.arquillian.container.spi.ContainerRegistry;
import org.jboss.arquillian.core.api.annotation.Observes;
import org.jboss.arquillian.core.spi.LoadableExtension;
import org.jboss.arquillian.core.spi.ServiceLoader;


// PesudoExample class it self should not be used, just a example to combine the other classes in one file..  
public class PesudoExample
{


   // register this as a SPI under META-INF/services/org.jboss.arquillian.core.spi.LoadableExtension
   public static class AutoDiscoverInstanceExtension implements LoadableExtension
   {
      @Override
      public void register(ExtensionBuilder builder)
      {
         builder.observer(LoadContainerConfiguration.class);
      }
   }
   
   public static class LoadContainerConfiguration 
   {
      public void registerInstance(@Observes ContainerRegistry registry, ServiceLoader serviceLoader)
      {
         VMImage image = findAvailableImage();
         
         // same value as you would put in arquillian.xml container/configuration
         ContainerDef definition = new ContainerDefImpl("not_used_for_anything")
                           .setContainerName("name")
                           .setDefault()
                           .property("host", image.ip)
                           .property("port", image.port);
         
         registry.create(definition, serviceLoader);
      }
      
      private VMImage findAvailableImage()
      {
         // Lookup in database or what ever you need to find the info
         return null;
      }
   }
   
   public static class VMImage {
      public String ip;
      public String port;
   }
}

[krisskross]

I will try this out. Arquillian is everything i wanted from in-container testing (and more). It fits my needs exactly!

I pay my respect on deephacks.

Thank you.

[aslak]

Thank you for the kind words!

I've added your blog to the External Blog/Article Feed at http://www.jboss.org/arquillian

Ping back if you're having problems getting it to run..

-aslak-

[krisskross]

Thanks for the link! :-) Much appreciated. I just recently changed my blog to stoffe.deephacks.org. Could you be so kind to update that link to http://stoffe.deephacks.org/2011/07/15/container-love?

Cheers,

-Kristoffer

[aslak]

done