org.wamblee.cdi.BeanManagerLookup Maven / Gradle / Ivy
/*
* Copyright 2005-2010 the original author or authors.
*
* Licensed 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.wamblee.cdi;
import java.util.logging.Logger;
import javax.enterprise.inject.spi.BeanManager;
import javax.naming.InitialContext;
import javax.naming.NamingException;
/**
* Class that encapsulates beanmanager lookup in a way so that the lookup can be
* explicitly overriden (for instance for unit test).
*
* In case no bean manager is found the beanmanager is set to null and the
* problem is logged.
*
* @author Erik Brakkee
*/
public class BeanManagerLookup {
private static final Logger LOGGER = Logger
.getLogger(BeanManagerLookup.class.getName());
public static final String BEAN_MANAGER_JNDI = "java:comp/BeanManager";
private static BeanManager BEAN_MANAGER = null;
/**
* Sets the bean manager (mainly for testability).
*
* @param aMgr
* Bean manager.
*/
public static void setBeanManager(BeanManager aMgr) {
BEAN_MANAGER = aMgr;
}
/**
* Looks up the bean manager if not already cached and returns it.
*
* @return Bean manager.
*/
public static BeanManager lookup() {
if (BEAN_MANAGER == null) {
try {
InitialContext ctx = new InitialContext();
BEAN_MANAGER = (BeanManager) ctx.lookup(BEAN_MANAGER_JNDI);
LOGGER.info("Beanmanager successfully located");
} catch (NamingException e) {
LOGGER.warning("No beanmanager was found, using null");
BEAN_MANAGER = null;
}
}
return BEAN_MANAGER;
}
}