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* Copyright 2010, Red Hat, Inc., and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.weld.tests.beanManager.bean;
import static org.jboss.weld.util.reflection.Reflections.cast;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.lang.annotation.Annotation;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import javax.enterprise.event.Observes;
import javax.enterprise.inject.Default;
import javax.enterprise.inject.spi.AfterBeanDiscovery;
import javax.enterprise.inject.spi.AnnotatedField;
import javax.enterprise.inject.spi.AnnotatedMethod;
import javax.enterprise.inject.spi.AnnotatedType;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.BeanAttributes;
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.Decorator;
import javax.enterprise.inject.spi.Extension;
import javax.enterprise.inject.spi.InjectionTargetFactory;
import javax.enterprise.inject.spi.ProcessManagedBean;
import javax.enterprise.inject.spi.ProducerFactory;
import org.jboss.weld.bean.builtin.BeanManagerProxy;
import org.jboss.weld.manager.BeanManagerImpl;
import org.jboss.weld.util.bean.ForwardingBeanAttributes;
import org.jboss.weld.util.reflection.Reflections;
public class BeanExtension implements Extension {
private Bean<Zoo> zooBean;
void registerBeans(@Observes AfterBeanDiscovery event, BeanManager manager) {
// create a synthetic class bean
{
AnnotatedType<Office> oat = manager.createAnnotatedType(Office.class);
BeanAttributes<Office> oa = manager.createBeanAttributes(oat);
InjectionTargetFactory<Office> factory = manager.getInjectionTargetFactory(oat);
Bean<?> bean = manager.createBean(oa, Office.class, factory);
event.addBean(bean);
}
// create a serializable synthetic class bean
{
AnnotatedType<SerializableOffice> oat = manager.createAnnotatedType(SerializableOffice.class);
BeanAttributes<SerializableOffice> oa = manager.createBeanAttributes(oat);
InjectionTargetFactory<SerializableOffice> factory = manager.getInjectionTargetFactory(oat);
Bean<?> bean = manager.createBean(oa, SerializableOffice.class, factory);
event.addBean(bean);
}
// create a synthetic decorator
{
AnnotatedType<VehicleDecorator> oat = manager.createAnnotatedType(VehicleDecorator.class);
BeanAttributes<VehicleDecorator> oa = addDecoratorStereotype(manager.createBeanAttributes(oat));
InjectionTargetFactory<VehicleDecorator> factory = manager.getInjectionTargetFactory(oat);
Bean<?> bean = manager.createBean(oa, VehicleDecorator.class, factory);
assertTrue(bean instanceof Decorator<?>);
event.addBean(bean);
}
assertNotNull(zooBean);
// create synthetic producer field
{
AnnotatedType<Zoo> zoo = manager.createAnnotatedType(Zoo.class);
assertEquals(1, zoo.getFields().size());
AnnotatedField<? super Zoo> field = zoo.getFields().iterator().next();
BeanAttributes<Lion> attributes = Reflections.cast(starveOut(manager.createBeanAttributes(field)));
ProducerFactory<Zoo> factory = getManagerImpl(manager).getProducerFactory(field, zooBean);
event.addBean(manager.createBean(attributes, Zoo.class, factory));
}
// create synthetic producer method
{
AnnotatedType<Zoo> zoo = manager.createAnnotatedType(Zoo.class);
AnnotatedMethod<? super Zoo> method = null;
for (AnnotatedMethod<? super Zoo> _method : zoo.getMethods()) {
if (_method.getBaseType().equals(Tiger.class)) {
method = _method;
}
}
assertNotNull(method);
BeanAttributes<Tiger> attributes = Reflections.cast(starveOut(manager.createBeanAttributes(method)));
ProducerFactory<Zoo> factory = getManagerImpl(manager).getProducerFactory(method, zooBean);
event.addBean(manager.createBean(attributes, Zoo.class, factory));
}
}
void observeZooBean(@Observes ProcessManagedBean<Zoo> event) {
this.zooBean = event.getBean();
}
private <T> BeanAttributes<T> starveOut(final BeanAttributes<T> attributes) {
return new ForwardingBeanAttributes<T>() {
@Override
public Set<Annotation> getQualifiers() {
Set<Annotation> qualifiers = new HashSet<Annotation>(attributes.getQualifiers());
qualifiers.add(Hungry.Literal.INSTANCE);
qualifiers.remove(Default.Literal.INSTANCE);
return Collections.unmodifiableSet(qualifiers);
}
@Override
protected BeanAttributes<T> attributes() {
return attributes;
}
};
}
private <T> BeanAttributes<T> addDecoratorStereotype(final BeanAttributes<T> attributes) {
return new ForwardingBeanAttributes<T>() {
@Override
protected BeanAttributes<T> attributes() {
return attributes;
}
@Override
public Set<Class<? extends Annotation>> getStereotypes() {
return Collections.<Class<? extends Annotation>> singleton(javax.decorator.Decorator.class);
}
};
}
private static BeanManagerImpl getManagerImpl(BeanManager manager) {
if (manager instanceof BeanManagerProxy) {
manager = Reflections.<BeanManagerProxy>cast(manager).delegate();
}
return cast(manager);
}
}