Re: JSF-Testing with embedded TomEE: Manipulate injected object

[hfe <a...@h41.de>]

Hi,

in my previous solutions I was able to use Mocks just with wrapper classes.
So, I was reading more and more code of TomEE and I found out that I can use
an Observer for directly mocking the injected object.


In a Test I call:

BeanToMock bean = Mockito.mock(BeanToMock.class);
when(bean.callme()).thenReturn("Jedi");
HfeObserver.addProducer(BeanToMock.class, () -> bean);

// start container
// request website with #{beanToMock.callme()} included


And the file /META-INF/org.apache.openejb.extension contains the name of
this Observer:

----------

public class HfeObserver {

    public static final Map<Class&lt;?>, HfeSupplier> PRODUCERS = new
HashMap<>();

    public static void addProducer(Class<?> clazz, Supplier supplier) {
        PRODUCERS.get(clazz).setSupplier(supplier);
    }

    public void observer(@Observes WebBeansContextBeforeDeploy event) {
       
event.getContext().getBeanManagerImpl().getNotificationManager().addObserver(new
HfeObserverMethod(), ProcessInjectionTarget.class);
    }

    private static class HfeObserverMethod implements ObserverMethod,
GenericBeanEvent, Extension {

        @Override
        public Class<?> getBeanClass() {
            return HfeObserverMethod.class;
        }

        @Override
        public Type getObservedType() {
            return null;
        }

        @Override
        public Set<Annotation> getObservedQualifiers() {
            return Sets.newHashSet(AnyLiteral.INSTANCE);
        }

        @Override
        public Reception getReception() {
            return null;
        }

        @Override
        public TransactionPhase getTransactionPhase() {
            return null;
        }

        @Override
        public void notify(Object event) {
            if (event instanceof GProcessInjectionTarget) {
                GProcessInjectionTarget injectionTarget =
(GProcessInjectionTarget) event;
                Class<?> clazz =
injectionTarget.getAnnotatedType().getJavaClass();
                HfeSupplier supplier = PRODUCERS.get(clazz);
                if (supplier == null) {
                    PRODUCERS.put(clazz, supplier = new HfeSupplier());
                }
                InjectionTarget target =
injectionTarget.getInjectionTarget();
                assert target != null;
                injectionTarget.setInjectionTarget(new
HfeInjectionTarget(target, supplier));
            }
        }

        @Override
        public Class<?> getBeanClassFor(Class<?> eventClass) {
            return null;
        }
    }


    private static class HfeInjectionTarget implements InjectionTarget {

        private InjectionTarget target;
        private Supplier supplier;

        public HfeInjectionTarget(InjectionTarget target, Supplier supplier)
{
            assert supplier != null;
            this.target = target;
            this.supplier = supplier;
        }

        public void inject(Object instance, CreationalContext ctx) {
            target.inject(instance, ctx);
        }

        public void postConstruct(Object instance) {
            target.postConstruct(instance);
        }

        public void preDestroy(Object instance) {
            target.preDestroy(instance);
        }

        public Object produce(CreationalContext creationalContext) {
            return supplier.get() == null ?
target.produce(creationalContext) : supplier.get();
        }

        public void dispose(Object instance) {
            target.dispose(instance);
        }

        public Set<InjectionPoint> getInjectionPoints() {
            return target.getInjectionPoints();
        }

    }

    public static class HfeSupplier implements Supplier {
        private Supplier supplier;


        public void setSupplier(Supplier supplier) {
            this.supplier = supplier;
        }

        @Override
        public Object get() {
            return supplier == null ? null : supplier.get();
        }
    }

}



--
View this message in context: http://tomee-openejb.979440.n4.nabble.com/JSF-Testing-with-embedded-TomEE-Manipulate-injected-object-tp4681575p4681697.html
Sent from the TomEE Users mailing list archive at Nabble.com.