/*
* Copyright (c) 1998-2011 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.type;
import com.caucho.config.*;
import com.caucho.config.inject.InjectManager;
import com.caucho.config.types.*;
import com.caucho.naming.*;
import com.caucho.util.*;
import com.caucho.xml.QName;
import java.util.Set;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.spi.Bean;
/**
* Represents an interface. The interface will try to lookup the
* value in webbeans.
*/
public class InterfaceType<T> extends ConfigType<T>
{
private static final L10N L = new L10N(InterfaceType.class);
private final Class<T> _type;
/**
* Create the interface type
*/
public InterfaceType(Class<T> type)
{
_type = type;
}
/**
* Returns the Java type.
*/
@Override
public Class<T> getType()
{
return _type;
}
/**
* Returns an InterfaceConfig object
*/
@Override
public Object create(Object parent, QName name)
{
InterfaceConfig cfg = new InterfaceConfig(_type, _type.getSimpleName());
return cfg;
}
/**
* Replace the type with the generated object
*/
public void init(Object bean)
{
if (bean instanceof InterfaceConfig)
((InterfaceConfig) bean).init();
else
super.init(bean);
}
/**
* Replace the type with the generated object
*/
public Object replaceObject(Object bean)
{
if (bean instanceof InterfaceConfig)
return ((InterfaceConfig) bean).replaceObject();
else
return bean;
}
/**
* Converts the string to a value of the type.
*/
@Override
public Object valueOf(String text)
{
if (text == null)
return null;
InjectManager beanManager = InjectManager.create();
Object value;
Set<Bean<?>> beans;
if (! text.equals(""))
beans = beanManager.getBeans(_type, Names.create(text));
else
beans = beanManager.getBeans(_type);
if (beans.iterator().hasNext()) {
Bean bean = beanManager.resolve(beans);
CreationalContext<?> env = beanManager.createCreationalContext(bean);
value = beanManager.getReference(bean, _type, env);
return value;
}
value = Jndi.lookup(text);
if (value != null)
return value;
throw new ConfigException(L.l("{0}: '{1}' is an unknown bean.",
_type.getName(), text));
}
/**
* Converts the value to a value of the type.
*/
public Object valueOf(Object value)
{
if (value == null)
return null;
else if (value instanceof String)
return valueOf((String) value);
else if (_type.isAssignableFrom(value.getClass()))
return value;
else
throw new ConfigException(L.l("{0}: '{1}' is an invalid value.",
_type.getName(), value));
}
public String toString()
{
return getClass().getSimpleName() + "[" + _type.getName() + "]";
}
}