/*
* 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.container;
import org.apache.webbeans.component.OwbBean;
import org.apache.webbeans.config.WebBeansContext;
import javax.enterprise.inject.spi.DeploymentException;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.enterprise.inject.spi.PassivationCapable;
import java.io.*;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Set;
/**
* Wrapper to make all our Beans serializable.
* This is basically a delegate to an underlying Bean<T>.
*
* We use the {@link PassivationCapable#getId()} and
* {@link javax.enterprise.inject.spi.BeanManager#getPassivationCapableBean(String)}
* for serialisation and deserialisation.
*
* @version $Rev: 1561563 $ $Date: 2014-01-26 23:25:33 +0100 (dim 26 jan 2014) $
*/
public final class SerializableBean<T> implements Bean<T>, PassivationCapable, Serializable
{
private static final long serialVersionUID = -8141263188006177021L;
/** the delegated bean */
private Bean<T> bean;
/**
* @return the delegated internal Bean.
*/
public Bean<T> getBean()
{
return bean;
}
/**
* This constructor shall not be invoked directly, but only get called
* from {@link org.apache.webbeans.container.SerializableBeanVault}
* @param bean the PassivationCapable bean which should be made Serializable
*/
SerializableBean(Bean<T> bean)
{
this.bean = bean;
}
@Override
public Set<Type> getTypes()
{
return bean.getTypes();
}
@Override
public Set<Annotation> getQualifiers()
{
return bean.getQualifiers();
}
@Override
public Class<? extends Annotation> getScope()
{
return bean.getScope();
}
@Override
public String getName()
{
return bean.getName();
}
@Override
public boolean isNullable()
{
return bean.isNullable();
}
@Override
public Set<InjectionPoint> getInjectionPoints()
{
return bean.getInjectionPoints();
}
@Override
public Class<?> getBeanClass()
{
return bean.getBeanClass();
}
@Override
public Set<Class<? extends Annotation>> getStereotypes()
{
return bean.getStereotypes();
}
@Override
public boolean isAlternative()
{
return bean.isAlternative();
}
@Override
public T create(CreationalContext<T> tCreationalContext)
{
return bean.create(tCreationalContext);
}
@Override
public void destroy(T instance, CreationalContext<T> tCreationalContext)
{
bean.destroy(instance, tCreationalContext);
}
@Override
public String getId()
{
return ((OwbBean<?>) bean).getId();
}
private void writeObject(ObjectOutputStream s)
throws IOException
{
String id = getId();
if (id == null)
{
throw new NotSerializableException();
}
s.writeObject(id);
}
@SuppressWarnings("unchecked")
private void readObject(ObjectInputStream s)
throws IOException, ClassNotFoundException
{
String id = (String) s.readObject();
Bean<T> b = (Bean<T>) WebBeansContext.currentInstance().getBeanManagerImpl().getPassivationCapableBean(id);
if (b == null)
{
throw new DeploymentException("cannot deserialize Bean with PassivationCapable id=" + id);
}
if (b instanceof SerializableBean)
{
b = ((SerializableBean<T>)b).getBean();
}
bean = b;
}
/**
* If the other object is a SerializableBean too, we compare the 2 underlying wrapped beans.
*
* {@inheritDoc}
*/
@Override
public boolean equals(Object other)
{
if (other instanceof SerializableBean<?>)
{
return bean.equals(((SerializableBean<?>)other).getBean());
}
return super.equals(other);
}
/**
* We need to return the hashCode of the wrapped underlying bean, otherwise the context
* won't work.
* @return hashCode of the underlying bean instance.
*/
@Override
public int hashCode()
{
return bean.hashCode();
}
}