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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.weld.bean.builtin;
import java.io.Serializable;
import java.lang.annotation.Annotation;
import java.util.Collections;
import java.util.Set;
import javax.enterprise.context.spi.Contextual;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.Intercepted;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.enterprise.inject.spi.Interceptor;
import org.jboss.weld.bean.BeanIdentifiers;
import org.jboss.weld.bean.StringBeanIdentifier;
import org.jboss.weld.context.WeldCreationalContext;
import org.jboss.weld.literal.InterceptedLiteral;
import org.jboss.weld.manager.BeanManagerImpl;
import org.jboss.weld.serialization.spi.BeanIdentifier;
import org.jboss.weld.util.bean.SerializableForwardingBean;
/**
* Allows an interceptor to obtain information about the bean it intercepts.
*
* @author Jozef Hartinger
* @see CDI-92
*
*/
public class InterceptedBeanMetadataBean extends BeanMetadataBean {
public InterceptedBeanMetadataBean(BeanManagerImpl beanManager) {
this(new StringBeanIdentifier(BeanIdentifiers.forBuiltInBean(beanManager, Bean.class, Intercepted.class.getSimpleName())), beanManager);
}
protected InterceptedBeanMetadataBean(BeanIdentifier identifier, BeanManagerImpl beanManager) {
super(identifier, beanManager);
}
@Override
protected Bean<?> newInstance(InjectionPoint ip, CreationalContext<Bean<?>> ctx) {
checkInjectionPoint(ip);
WeldCreationalContext<?> interceptorContext = getParentCreationalContext(ctx);
WeldCreationalContext<?> interceptedBeanContext = getParentCreationalContext(interceptorContext);
Contextual<?> interceptedContextual = interceptedBeanContext.getContextual();
if (interceptedContextual instanceof Bean<?>) {
Bean<?> bean = (Bean<?>) interceptedContextual;
if (bean instanceof Serializable) {
return bean;
} else {
return SerializableForwardingBean.of(getBeanManager().getContextId(), bean);
}
} else {
throw new IllegalArgumentException("Unable to determine @Intercepted Bean<?> for this interceptor.");
}
}
protected void checkInjectionPoint(InjectionPoint ip) {
if (!(ip.getBean() instanceof Interceptor<?>)) {
throw new IllegalArgumentException("@Intercepted Bean<?> can only be injected into an interceptor.");
}
}
@Override
public Set<Annotation> getQualifiers() {
return Collections.<Annotation> singleton(InterceptedLiteral.INSTANCE);
}
@Override
public String toString() {
return "Implicit Bean [javax.enterprise.inject.spi.Bean] with qualifiers [@Intercepted]";
}
}