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* JBoss, Home of Professional Open Source
* 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.seam.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.seam.solder.bean.Beans;
import org.jboss.seam.solder.reflection.Reflections;
/**
* A helper class for implementing producer methods and fields on generic beans
*
* @author Pete Muir
*
*/
abstract class AbstractGenericProducerBean<T> extends AbstactGenericBean<T>
{
private final Type declaringBeanType;
private final Annotation[] declaringBeanQualifiers;
private final Class<? extends Annotation> scopeOverride;
protected AbstractGenericProducerBean(Bean<T> delegate, Annotation genericConfiguration, Set<Annotation> qualifiers, Set<Annotation> declaringBeanQualifiers, Class<? extends Annotation> scopeOverride, String id, boolean alternative, Class<?> beanClass, BeanManager beanManager)
{
super(delegate, qualifiers, genericConfiguration, 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;
}
}
}