/*
* JBoss, Home of Professional Open Source
* Copyright 2009, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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.jboss.arquillian.testenricher.cdi;
import java.lang.reflect.Method;
import java.util.logging.Logger;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.InjectionTarget;
import javax.naming.InitialContext;
import org.jboss.arquillian.spi.Context;
import org.jboss.arquillian.spi.TestEnricher;
/**
* Enricher that provide JSR-299 CDI class and method argument injection.
*
* @author <a href="mailto:aslak@conduct.no">Aslak Knutsen</a>
* @version $Revision: $
*/
public class CDIInjectionEnricher implements TestEnricher
{
private static final String STANDARD_BEAN_MANAGER_JNDI_NAME = "java:comp/BeanManager";
private static final String SERVLET_BEAN_MANAGER_JNDI_NAME = "java:comp/env/BeanManager";
private static final String JBOSSAS_BEAN_MANAGER_JNDI_NAME = "java:global/test/arquillian-protocol/BeanManager";
private static final String ANNOTATION_NAME = "javax.inject.Inject";
private static final Logger log = Logger.getLogger(CDIInjectionEnricher.class.getName());
/* (non-Javadoc)
* @see org.jboss.arquillian.spi.TestEnricher#enrich(org.jboss.arquillian.spi.Context, java.lang.Object)
*/
public void enrich(Context context, Object testCase)
{
if(SecurityActions.isClassPresent(ANNOTATION_NAME))
{
injectClass(context, testCase);
}
}
/* (non-Javadoc)
* @see org.jboss.arquillian.spi.TestEnricher#resolve(org.jboss.arquillian.spi.Context, java.lang.reflect.Method)
*/
public Object[] resolve(Context context, Method method)
{
Object[] values = new Object[method.getParameterTypes().length];
if(SecurityActions.isClassPresent(ANNOTATION_NAME))
{
BeanManager beanManager = lookupBeanManager(context);
if(beanManager == null)
{
return values;
}
Class<?>[] parameterTypes = method.getParameterTypes();
for(int i = 0; i < parameterTypes.length; i++)
{
values[i] = getInstanceByType(beanManager, i, method);
}
}
return values;
}
@SuppressWarnings("unchecked")
private <T> T getInstanceByType(BeanManager manager, final int position, final Method method)
{
CreationalContext<?> cc = manager.createCreationalContext(null);
return (T)manager.getInjectableReference(
new MethodParameterInjectionPoint<T>(method, position),
cc);
}
protected void injectClass(Context context, Object testCase)
{
try
{
BeanManager beanManager = lookupBeanManager(context);
if(beanManager != null) {
injectNonContextualInstance(beanManager, testCase);
}
else
{
// Better would be to raise an exception if @Inject is present in class and BeanManager cannot be found
log.info("Skipping CDI injections. Either beans.xml is not present or the BeanManager could not be located in JNDI.");
}
}
catch (Exception e)
{
throw new RuntimeException("Could not inject members", e);
}
}
@SuppressWarnings("unchecked")
protected void injectNonContextualInstance(BeanManager manager, Object instance)
{
CreationalContext<Object> creationalContext = manager.createCreationalContext(null);
InjectionTarget<Object> injectionTarget = (InjectionTarget<Object>) manager.createInjectionTarget(
manager.createAnnotatedType(instance.getClass()));
injectionTarget.inject(instance, creationalContext);
}
protected BeanManager lookupBeanManager(Context context)
{
try
{
return (BeanManager) new InitialContext().lookup(STANDARD_BEAN_MANAGER_JNDI_NAME);
}
catch (Exception e)
{
try
{
return (BeanManager) new InitialContext().lookup(SERVLET_BEAN_MANAGER_JNDI_NAME);
}
catch (Exception se) {}
// TODO: hack until BeanManager binding fixed in JBoss AS
try
{
return (BeanManager) new InitialContext().lookup(JBOSSAS_BEAN_MANAGER_JNDI_NAME);
}
catch (Exception je)
{
return null;
}
}
}
}