webbeans-impl/src/main/java/org/apache/webbeans/component/InjectionTargetBean.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.apache.webbeans.component;

import javax.enterprise.inject.spi.AnnotatedType;

import javax.enterprise.inject.spi.BeanAttributes;
import javax.enterprise.inject.spi.InjectionTargetFactory;
import org.apache.webbeans.config.WebBeansContext;
import org.apache.webbeans.container.InjectionTargetFactoryImpl;

import javax.enterprise.inject.spi.InjectionTarget;


import java.io.NotSerializableException;
import java.io.ObjectStreamException;
import java.io.Serializable;

import org.apache.webbeans.portable.AbstractProducer;
import org.apache.webbeans.util.Asserts;

/**
 * Abstract class for injection target beans.
 * 
 * @version $Rev$ $Date$
 * @param <T> bean class
 */
public class InjectionTargetBean<T> extends AbstractOwbBean<T> implements Serializable
{    
    /**Annotated type for bean*/
    private AnnotatedType<T> annotatedType;
    private InjectionTarget<T> injectionTarget;

    public InjectionTargetBean(
            WebBeansContext webBeansContext,
            WebBeansType webBeansType,
            AnnotatedType<T> annotatedType,
            BeanAttributes<T> beanAttributes,
            Class<T> beanClass)
    {
        this(webBeansContext, webBeansType, annotatedType, beanAttributes, beanClass, new InjectionTargetFactoryImpl<>(annotatedType, webBeansContext));
    }

    /**
     * Initializes the InjectionTarget Bean part.
     */
    public InjectionTargetBean(WebBeansContext webBeansContext,
            WebBeansType webBeansType,
            AnnotatedType<T> annotatedType,
            BeanAttributes<T> beanAttributes,
            Class<T> beanClass,
            InjectionTargetFactory<T> factory)
    {
        super(webBeansContext, webBeansType, beanAttributes, beanClass, false);
        Asserts.assertNotNull(annotatedType, "AnnotatedType");
        this.annotatedType = annotatedType;
        injectionTarget = factory.createInjectionTarget(this);
        setEnabled(true);
    }

    // call it only if you know what you do, basically only useful when creating a bean manually and not using child classes
    public void defineInterceptorsIfNeeded()
    {
        if (getProducer() instanceof AbstractProducer)
        {
            AbstractProducer<T> producer = (AbstractProducer<T>)getProducer();
            producer.defineInterceptorStack(this, annotatedType, webBeansContext);
        }
    }

    @Override
    protected String providedId()
    {
        return webBeansContext.getBeanManagerImpl().getId(Class.class.cast(getBeanClass()), annotatedType);
    }

    @Override
    public InjectionTarget<T> getProducer()
    {
        return injectionTarget;
    }

    public InjectionTarget<T> getInjectionTarget()
    {
        return injectionTarget;
    }

    /**
     * {@inheritDoc}
     */
    public AnnotatedType<T> getAnnotatedType()
    {
        return annotatedType;
    }

    /**
     * This uses the {@link org.apache.webbeans.component.PassivationBeanWrapper}
     * to only store the beanPassivationId.
     */
    private Object writeReplace() throws ObjectStreamException
    {
        String passivationId = getId();
        if (passivationId == null)
        {
            throw new NotSerializableException("Bean is about to be serialized and does not have any any PassivationCapable id: " + toString());
        }

        return new PassivationBeanWrapper(passivationId);
    }
}