/*
* Copyright 2011-2014 Conventions Framework.
*
* 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.conventionsframework.util;
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;
import java.lang.annotation.Annotation;
/**
*
* @author rpestano
*/
public class BeanManagerController {
private static BeanManager beanManager;
public static BeanManager getBeanManager() {
if(beanManager == null){
try {
InitialContext initialContext = new InitialContext();
beanManager = (BeanManager) initialContext.lookup("java:comp/BeanManager");
} catch (NamingException e) {
e.printStackTrace();
return null;
}
}
return beanManager;
}
public static void setBeanManager(String jndi){
try {
InitialContext initialContext = new InitialContext();
beanManager = (BeanManager) initialContext.lookup(jndi);
} catch (NamingException e) {
e.printStackTrace();
}
}
public static <T> T getBeanByType(Class<T> type) {
BeanManager bm = getBeanManager();
Bean bean = bm.getBeans(type).iterator().next();
CreationalContext ctx = bm.createCreationalContext(bean); // could be inlined below
T o = (T) bm.getReference(bean, type, ctx); // could be inlined with return
return o;
}
public static <T> T getBeanByName(String name) {
BeanManager bm = getBeanManager();
Bean bean = bm.getBeans(name).iterator().next();
CreationalContext ctx = bm.createCreationalContext(bean); // could be inlined below
T o = (T) bm.getReference(bean, bean.getBeanClass(), ctx); // could be inlined with return
return o;
}
public static <T> T getBeanByNameAndType(String name,Class<T>type ) {
BeanManager bm = getBeanManager();
Bean bean = bm.getBeans(name).iterator().next();
CreationalContext ctx = bm.createCreationalContext(bean); // could be inlined below
T o = (T) bm.getReference(bean, type, ctx); // could be inlined with return
return o;
}
public static <T> T getBeanByTypeAndQualifier(Class<T> type, final Class<? extends Annotation> qualifier) {
BeanManager bm = getBeanManager();
Bean bean = bm.getBeans(type,new Annotation() {
@Override
public Class<? extends Annotation> annotationType() {
return qualifier;
}
}).iterator().next();
CreationalContext ctx = bm.createCreationalContext(bean); // could be inlined below
T o = (T) bm.getReference(bean, type, ctx); // could be inlined with return
return o;
}
}