CDILocator.java

package com.mycompany.controllers;

import java.util.Set;

import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.BeanManager;
import javax.naming.InitialContext;
import javax.naming.NamingException;

public class CDILocator {

	private static BeanManager getBeanManager(){
		try{
			InitialContext initialContext =
					new InitialContext();
			return (BeanManager) initialContext.
					lookup("java:comp/env/BeanManager");
		}catch(NamingException e){
			throw new RuntimeException(""
					+ "No se puede encontrar BeanManager "
					+ "en JNDI");
		}
	}
	
	@SuppressWarnings("unchecked")
	public static <T> T getBean(Class<T> clazz){
		BeanManager bm = getBeanManager();
		Set<Bean<?>> beans = (Set<Bean<?>>) bm.getBeans(clazz);
		if (beans==null || beans.isEmpty()){
			return null;
		}
		
		Bean<T> bean = (Bean<T>) beans.iterator().next();
		CreationalContext<T> ctx =
				bm.createCreationalContext(bean);
		T o = (T) bm.getReference(bean, clazz, ctx);
		return o;
		
	}
	
	
	
	
	
}