[keycloak-user] Access to EntityManager/KeycloakSession from a MessageDrivenBean inside Keycloak

[Edwin Steiner]

Hello All

We would like to extended our Keycloak instance with a MessageDrivenBean for user synchronization. Inside the MessageDrivenBean we need access to the EntityManager for storing the imported users in the database.

@MessageDriven(name = "ImportUserMessageHandler", activationConfig = {
        @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),
        @ActivationConfigProperty(propertyName = "destination", propertyValue = “ImportQueue"),
        @ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge") })
@ApplicationScoped
public class ImportUserMessageHandler extends AbstractMessageDrivenBean {

    @PersistenceContext(unitName="keycloak-default")
    private EntityManager entityManager;

}

But the above code results in the following error message:

————————
Caused by: org.jboss.as.server.deployment.DeploymentUnitProcessingException: WFLYEE0041: Component class com.inventage.iam.import.ImportUserMessageHandler for component ImportUserMessageHandler has errors: 
WFLYJPA0033: Can't find a persistence unit named keycloak-default in deployment "keycloak-spi.jar"
	at org.jboss.as.ee.component.deployers.ModuleJndiBindingProcessor$1.handle(ModuleJndiBindingProcessor.java:157)
	at org.jboss.as.ee.component.ClassDescriptionTraversal.run(ClassDescriptionTraversal.java:54)
	at org.jboss.as.ee.component.deployers.ModuleJndiBindingProcessor.processClassConfigurations(ModuleJndiBindingProcessor.java:186)
	at org.jboss.as.ee.component.deployers.ModuleJndiBindingProcessor.deploy(ModuleJndiBindingProcessor.java:143)
	at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:165)
	... 5 more
————————

Normally the EntityManager is gotten via keycloakSession.getProvider(JpaConnectionProvider.class).getEntityManager(), but in the MessageDrivenBean we have no access a KeycloakSession instance.

Is there an other way to get the EntityManager? Or can we get somehow a KeycloakSession instance inside the MessageDrivenBean?

Thanks
Edwin