Calling an EJB from a subsystem module

[xavier.courangon]

Hi All,

I try to use the JBoss AS deployment facility as my application configuration CRUD feature.

Here is the idea :

My application as some configuration objects in database. I need a CRUD user interface. This could be a GUI or a remote api (RMI, Webservice), ...

But one of my user doesn't want to use these. He would like to paste his configurations as files within a file directory to "deploy it".

OK I could code a Timer that track this directory but I think about another implementation.

Why not using the AS deployment facility ?

A could code a subsystem (as explained in the Extending JBoss AS 7 documention) with a DeploymentUnitProcessor class that implements the deploy/undeploy methods to call the CRUD application API.

Also "deployed" configurations could be managed in the administration console (or with the CLI).

My first question is : is it a really a good idea ?

Now (because I didn't wait for the response ;-) I have this issue :

My EAR application is deployed and publishes a CRUD Remote Session to managed configurations.

From an external client (standalone client within Eclipse) all is well : I can remotly call the EJB.

But from the subsystem I catch ClassNotFoundException : the Remote interface is not found by the org.jboss.modules.ModuleClassLoader when calling lookup().

    @Override

    public void deploy(DeploymentPhaseContext phaseContext) throws DeploymentUnitProcessingException {

        String name = phaseContext.getDeploymentUnit().getName();

        if(name.endsWith("-config.xml")) {

          try {

            IConfigurationManagerRemote remote = (IConfigurationManagerRemote)context.lookup(jndiName);

            [...]

          } catch (NamingException e) {

             throw new DeploymentUnitProcessingException(e);

          }

       }

    }

Here is the file module.xml :

<module xmlns="urn:jboss:module:1.0" name="com.acme.deployer">

    <resources>

        <resource-root path="acme-subsystem.jar"/>

        <resource-root path="acme-ejb-client.jar"/

    </resources>

    <dependencies>

        <module name="javax.api"/>

        <module name="org.jboss.staxmapper"/>

        <module name="org.jboss.as.controller"/>

        <module name="org.jboss.as.server"/>

        <module name="org.jboss.modules"/>

        <module name="org.jboss.msc"/>

        <module name="org.jboss.logging"/>

        <module name="org.jboss.vfs"/>

    </dependencies>

</module>

The IConfigurationManagerRemote interface is in acme-ejb-client.jar

Any idea ?

Thanks.