/*
* JBoss, Home of Professional Open Source
* Copyright 2011, Red Hat, Inc. and/or its affiliates, 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.solder.bean.generic;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Set;
import javax.enterprise.context.Dependent;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.BeanManager;
import org.jboss.solder.bean.Beans;
import org.jboss.solder.reflection.Reflections;
/**
* A helper class for implementing producer methods and fields on generic beans
*
* @author Pete Muir
*/
abstract class AbstractGenericProducerBean<T> extends AbstractGenericBean<T> {
private final Type declaringBeanType;
private final Annotation[] declaringBeanQualifiers;
private final Class<? extends Annotation> scopeOverride;
protected AbstractGenericProducerBean(Bean<T> delegate, GenericIdentifier identifier, Set<Annotation> qualifiers, Set<Annotation> declaringBeanQualifiers, Class<? extends Annotation> scopeOverride, String id, boolean alternative, Class<?> beanClass, BeanManager beanManager) {
super(delegate, qualifiers, identifier, id, alternative, beanClass, beanManager);
this.declaringBeanType = delegate.getBeanClass();
this.declaringBeanQualifiers = declaringBeanQualifiers.toArray(Reflections.EMPTY_ANNOTATION_ARRAY);
this.scopeOverride = scopeOverride;
}
protected Annotation[] getDeclaringBeanQualifiers() {
return declaringBeanQualifiers;
}
protected Type getDeclaringBeanType() {
return declaringBeanType;
}
protected abstract T getValue(Object receiver, CreationalContext<T> creationalContext);
@Override
public T create(CreationalContext<T> creationalContext) {
try {
Object receiver = getReceiver(creationalContext);
T instance = getValue(receiver, creationalContext);
Beans.checkReturnValue(instance, this, null, getBeanManager());
return instance;
} finally {
if (getDeclaringBean().getScope().equals(Dependent.class)) {
creationalContext.release();
}
}
}
protected Object getReceiver(CreationalContext<T> creationalContext) {
Bean<?> declaringBean = getDeclaringBean();
return getBeanManager().getReference(declaringBean, declaringBean.getBeanClass(), creationalContext);
}
protected Bean<?> getDeclaringBean() {
return getBeanManager().resolve(getBeanManager().getBeans(getDeclaringBeanType(), getDeclaringBeanQualifiers()));
}
@Override
public Class<? extends Annotation> getScope() {
if (scopeOverride == null) {
return super.getScope();
} else {
return scopeOverride;
}
}
}