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/*
* 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 org.apache.webbeans.component.spi.BeanAttributes;
import org.apache.webbeans.config.OWBLogConst;
import org.apache.webbeans.config.WebBeansContext;
import org.apache.webbeans.context.creational.CreationalContextImpl;
import org.apache.webbeans.logger.WebBeansLoggerFacade;
import javax.enterprise.context.Dependent;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.CreationException;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.enterprise.inject.spi.InjectionTarget;
import javax.enterprise.inject.spi.PassivationCapable;
import javax.enterprise.inject.spi.Producer;
import java.io.Serializable;
import java.lang.annotation.Annotation;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Abstract implementation of the {@link OwbBean} contract.
*
* @version $Rev: 1559290 $ $Date: 2014-01-18 00:56:01 +0100 (Sat, 18 Jan 2014) $
*
* @see javax.enterprise.inject.spi.Bean
*
*/
public abstract class AbstractOwbBean
extends BeanAttributesImpl
implements OwbBean, PassivationCapable
{
/**Logger instance*/
protected Logger logger = null;
/** Web Beans type */
protected WebBeansType webBeansType;
/** the bean class */
private final Class beanClass;
/**This bean is specialized or not*/
protected boolean specializedBean;
/**This bean is enabled or disabled*/
protected boolean enabled = true;
/**
* This string will be used for passivating the Bean.
* It will be created on the first use.
* @see #getId()
*/
protected String passivatingId = null;
protected final WebBeansContext webBeansContext;
protected AbstractOwbBean(WebBeansContext webBeansContext,
WebBeansType webBeansType,
BeanAttributes beanAttributes,
Class beanClass,
boolean nullable)
{
super(beanAttributes, nullable);
this.webBeansType = webBeansType;
this.beanClass = beanClass;
this.webBeansContext = webBeansContext;
}
/**
* Get the web beans context this bean is associated with
*
* @return WebBeansContext this bean is associated with
*/
@Override
public WebBeansContext getWebBeansContext()
{
return webBeansContext;
}
@Override
public Class getBeanClass()
{
return beanClass;
}
/**
* {@inheritDoc}
*/
@Override
public T create(CreationalContext creationalContext)
{
try
{
if(!(creationalContext instanceof CreationalContextImpl))
{
creationalContext = webBeansContext.getCreationalContextFactory().wrappedCreationalContext(creationalContext, this);
}
final Producer producer = getProducer();
final T instance = producer.produce(creationalContext);
if (producer instanceof InjectionTarget)
{
final InjectionTarget injectionTarget = (InjectionTarget)producer;
injectionTarget.inject(instance, creationalContext);
injectionTarget.postConstruct(instance);
}
if (getScope().equals(Dependent.class))
{
((CreationalContextImpl)creationalContext).addDependent(this, instance);
}
return instance;
}
catch (Exception re)
{
Throwable throwable = getRootException(re);
if(!(throwable instanceof RuntimeException))
{
throw new CreationException(throwable);
}
throw (RuntimeException) throwable;
}
}
private Throwable getRootException(Throwable throwable)
{
if(throwable.getCause() == null || throwable.getCause() == throwable)
{
return throwable;
}
else
{
return getRootException(throwable.getCause());
}
}
/*
* (non-Javadoc)
* @param creationalContext the contextual instance has been created in
*/
@Override
public void destroy(T instance, CreationalContext creationalContext)
{
if (getScope().equals(Dependent.class)
&& creationalContext instanceof CreationalContextImpl
&& ((CreationalContextImpl)creationalContext).containsDependent(this, instance))
{
// we just have to call release, because release will destroy us since we are @Dependent
creationalContext.release();
return;
}
try
{
Producer producer = getProducer();
if (producer instanceof InjectionTarget)
{
InjectionTarget injectionTarget = (InjectionTarget)producer;
injectionTarget.preDestroy(instance);
}
producer.dispose(instance);
//Destroy dependent instances
creationalContext.release();
}
catch(Exception e)
{
getLogger().log(Level.SEVERE, WebBeansLoggerFacade.constructMessage(OWBLogConst.FATAL_0001, this), e);
}
}
/**
* get the unique Id of the bean. This will get used as reference on
* passivation.
*
* {@inheritDoc}
*/
@Override
public String getId()
{
if (!isEnabled() || getReturnType().equals(Object.class))
{
// if the Bean is disabled, either by rule, or by
// annotating it @Typed() as Object, then it is not serializable
return null;
}
if (passivatingId == null)
{
StringBuilder sb = new StringBuilder(webBeansType.toString()).append('#');
sb.append(getReturnType()).append('#');
for (Annotation qualifier : getQualifiers())
{
sb.append(qualifier.toString()).append(',');
}
passivatingId = sb.toString();
}
return passivatingId;
}
@Override
public boolean isPassivationCapable()
{
if (isPassivationCapable != null)
{
return isPassivationCapable;
}
if(Serializable.class.isAssignableFrom(getReturnType()))
{
isPassivationCapable = Boolean.TRUE;
return true;
}
isPassivationCapable = Boolean.FALSE;
return false;
}
/** cache previously calculated result */
private Boolean isPassivationCapable = null;
/**
* Get web bean type of the bean.
*
* @return web beans type
*/
@Override
public WebBeansType getWebBeansType()
{
return webBeansType;
}
/**
* Gets type of the producer method/field or the bean class if it's not a producer.
* This basically determines the class which will get created.
*
* @return type of the producer method
* @see #getBeanClass()
*/
@Override
public Class getReturnType()
{
return (Class) getBeanClass();
}
/**
* {@inheritDoc}
*/
@Override
public Set getInjectionPoints()
{
return getProducer().getInjectionPoints();
}
/**
* {@inheritDoc}
*/
@Override
public void setSpecializedBean(boolean specialized)
{
specializedBean = specialized;
}
/**
* {@inheritDoc}
*/
@Override
public void setEnabled(boolean enabled)
{
this.enabled = enabled;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isSpecializedBean()
{
return specializedBean;
}
/**
* {@inheritDoc}
*/
@Override
public boolean isAlternative()
{
return webBeansContext.getAlternativesManager().isBeanHasAlternative(this);
}
/**
* {@inheritDoc}
*/
@Override
public boolean isEnabled()
{
return enabled;
}
/**
* {@inheritDoc}
*/
public String toString()
{
StringBuilder builder = new StringBuilder();
final String simpleName = getReturnType().getSimpleName();
builder.append(simpleName).append(", ");
builder.append("Name:").append(getName()).append(", WebBeans Type:").append(getWebBeansType());
builder.append(", API Types:[");
int size = getTypes().size();
int index = 1;
for(Type clazz : getTypes())
{
if(clazz instanceof Class)
{
builder.append(((Class)clazz).getName());
}
else
{
ParameterizedType parameterizedType = (ParameterizedType) clazz;
Class rawType = (Class) parameterizedType.getRawType();
builder.append(rawType.getName());
builder.append("<");
Type[] actualTypeArguments = parameterizedType.getActualTypeArguments();
if (actualTypeArguments.length > 0)
{
for (Type actualType : actualTypeArguments)
{
if (Class.class.isInstance(actualType))
{
builder.append(Class.class.cast(actualType).getName().replace("java.lang.", ""));
}
else
{
builder.append(actualType);
}
builder.append(",");
}
}
builder.delete(builder.length() - 1, builder.length());
builder.append(">");
}
if(index < size)
{
builder.append(",");
}
index++;
}
builder.append("], ");
builder.append("Qualifiers:[");
size = getQualifiers().size();
index = 1;
for(Annotation ann : getQualifiers())
{
builder.append(ann.annotationType().getName());
if(index < size)
{
builder.append(",");
}
index++;
}
builder.append("]");
return builder.toString();
}
/**
* The Logger should really only be used to log errors!
*/
protected synchronized Logger getLogger()
{
if (logger == null)
{
logger = WebBeansLoggerFacade.getLogger(getClass());
}
return logger;
}
@Override
public boolean isDependent()
{
return getScope().equals(Dependent.class);
}
}
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