/*
* Copyright (c) 1998-2010 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.config.el;
import java.beans.*;
import java.util.*;
import javax.el.*;
import com.caucho.config.inject.CreationalContextImpl;
import com.caucho.config.inject.InjectManager;
import com.caucho.config.xml.XmlConfigContext;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.spi.Bean;
/**
* Variable resolution for webbeans variables
*/
public class WebBeansContextResolver extends ELResolver {
public WebBeansContextResolver()
{
}
public Class<?> getCommonPropertyType(ELContext context,
Object base)
{
return Object.class;
}
public Iterator<FeatureDescriptor>
getFeatureDescriptors(ELContext context, Object base)
{
ArrayList<FeatureDescriptor> list = new ArrayList<FeatureDescriptor>();
return list.iterator();
}
public Class<?> getType(ELContext context,
Object base,
Object property)
{
Object value = getValue(context, base, property);
if (value == null)
return null;
else
return value.getClass();
}
public Object getValue(ELContext context,
Object base,
Object property)
throws PropertyNotFoundException,
ELException
{
if (! (property instanceof String) || base != null)
return null;
String name = (String) property;
InjectManager webBeans = InjectManager.getCurrent();
if (webBeans == null)
return null;
Set<Bean<?>> beans = webBeans.getBeans(name);
if (beans.size() == 0)
return null;
Bean<?> bean = webBeans.resolve(beans);
XmlConfigContext env = XmlConfigContext.getCurrent();
CreationalContext<?> cxt = null;
if (env != null) {
cxt = env.getCreationalContext();
if (cxt instanceof CreationalContextImpl<?>) {
CreationalContextImpl<?> cxtImpl = (CreationalContextImpl<?>) cxt;
Object value = cxtImpl.get(bean);
if (value != null)
return value;
}
cxt = new CreationalContextImpl(bean, cxt);
}
else {
cxt = new CreationalContextImpl(bean, null);
}
Object result = webBeans.getReference(bean, bean.getBeanClass(), cxt);
if (result != null) {
context.setPropertyResolved(true);
return result;
}
else
return null;
}
public boolean isReadOnly(ELContext context,
Object base,
Object property)
throws PropertyNotFoundException,
ELException
{
return true;
}
public void setValue(ELContext context,
Object base,
Object property,
Object value)
throws PropertyNotFoundException,
PropertyNotWritableException,
ELException
{
}
}