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* 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 org.jboss.arquillian.core.api.Instance;
import org.jboss.arquillian.core.api.annotation.Inject;
import org.jboss.arquillian.test.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 ANNOTATION_NAME = "javax.inject.Inject";
private static final Logger log = Logger.getLogger(CDIInjectionEnricher.class.getName());
@Inject
private Instance<BeanManager> beanManagerInst;
/**
* @return the beanManagerInst
*/
public BeanManager getBeanManager()
{
return beanManagerInst.get();
}
/* (non-Javadoc)
* @see org.jboss.arquillian.spi.TestEnricher#enrich(org.jboss.arquillian.spi.Context, java.lang.Object)
*/
public void enrich(Object testCase)
{
if (SecurityActions.isClassPresent(ANNOTATION_NAME))
{
injectClass(testCase);
}
}
/* (non-Javadoc)
* @see org.jboss.arquillian.spi.TestEnricher#resolve(org.jboss.arquillian.spi.Context, java.lang.reflect.Method)
*/
public Object[] resolve(Method method)
{
Object[] values = new Object[method.getParameterTypes().length];
if (SecurityActions.isClassPresent(ANNOTATION_NAME))
{
BeanManager beanManager = getBeanManager();
if (beanManager == null)
{
return values;
}
Class<?>[] parameterTypes = method.getParameterTypes();
for (int i = 0; i < parameterTypes.length; i++)
{
try
{
values[i] = getInstanceByType(beanManager, i, method);
}
catch (Exception e)
{
log.info("CDIEnricher tried to lookup method parameter of type " + parameterTypes[i] + " but caught exception: " + e.getMessage());
}
}
}
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, manager), cc);
}
protected void injectClass(Object testCase)
{
try
{
BeanManager beanManager = getBeanManager();
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("BeanManager cannot be located in context "
+ "Either you are using an archive with no beans.xml, or the BeanManager has not been produced.");
}
}
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);
}
}