/*
* 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.resin;
import javax.enterprise.context.ApplicationScoped;
import com.caucho.config.ConfigException;
import com.caucho.config.inject.BeanBuilder;
import com.caucho.config.inject.InjectManager;
import com.caucho.config.program.ContainerProgram;
import com.caucho.config.program.PropertyValueProgram;
import com.caucho.util.L10N;
/**
* Embeddable version of a singleton bean
*
* <code><pre>
* ResinEmbed resin = new ResinEmbed();
*
* WebAppEmbed webApp = new WebAppEmbed("/foo", "/var/www/foo");
*
* MyBean myBean = new MyBean();
*
* BeanEmbed bean = new BeanEmbed(myBean);
*
* webApp.addBean(bean);
*
* resin.addWebApp(webApp);
* </pre></code>
*/
public class BeanEmbed
{
private static final L10N L = new L10N(BeanEmbed.class);
private Object _value;
private String _className;
private String _name;
private ContainerProgram _init = new ContainerProgram();
/**
* Creates a new embedded bean
*/
public BeanEmbed()
{
}
/**
* Creates a new embedded bean with a singleton value
*/
public BeanEmbed(Object value)
{
setValue(value);
}
/**
* Creates a new embedded bean with a singleton value
*/
public BeanEmbed(Object value, String name)
{
setValue(value);
setName(name);
}
/**
* Creates a new embedded bean with a given classname
*/
public BeanEmbed(String className)
{
setClass(className);
}
/**
* Creates a new embedded bean with a given classname and name
*/
public BeanEmbed(String className, String name)
{
setClass(className);
setName(name);
}
/**
* Sets the bean's classname
*/
public void setClass(String className)
{
_className = className;
}
/**
* Sets the bean's name
*/
public void setName(String name)
{
_name = name;
}
/**
* Sets the bean value.
*/
public void setValue(Object value)
{
_value = value;
}
/**
* Adds a property.
*/
public void addProperty(String name, Object value)
{
_init.addProgram(new PropertyValueProgram(name, value));
}
/**
* validates the bean
*/
public void validate()
{
if (_value != null)
return;
}
/**
* Configures the bean (for internal use)
*/
protected void configure()
{
try {
InjectManager cdiManager = InjectManager.create();
if (_value != null) {
BeanBuilder<?> factory = cdiManager.createBeanFactory(_value.getClass());
if (_name != null)
factory.name(_name);
cdiManager.addBean(factory.singleton(_value));
}
else if (_className == null)
throw new ConfigException(L.l("BeanEmbed must either have a value or a class"));
else {
ClassLoader loader = Thread.currentThread().getContextClassLoader();
Class<?> cl = Class.forName(_className, false, loader);
BeanBuilder<?> factory = cdiManager.createBeanFactory(cl);
factory.scope(ApplicationScoped.class);
if (_name != null)
factory.name(_name);
if (_init != null)
factory.init(_init);
cdiManager.addBean(factory.bean());
}
} catch (Exception e) {
throw ConfigException.create(e);
}
}
}