/*
* 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.apache.openejb.cdi;
import org.apache.openejb.AppContext;
import org.apache.openejb.BeanContext;
import org.apache.openejb.ModuleContext;
import org.apache.openejb.core.ThreadContext;
import org.apache.openejb.core.ThreadContextListener;
import org.apache.openejb.loader.SystemInstance;
import org.apache.webbeans.config.WebBeansContext;
/**
* @version $Rev:$ $Date:$
*/
public class OWBContextThreadListener implements ThreadContextListener {
private final ThreadSingletonService singletonService = SystemInstance.get().getComponent(ThreadSingletonService.class);
@Override
public void contextEntered(final ThreadContext oldContext, final ThreadContext newContext) {
final BeanContext beanContext = newContext.getBeanContext();
if (beanContext == null) { // OWBContextHolder will be null so calling contextExited will throw a NPE
return;
}
final ModuleContext moduleContext = beanContext.getModuleContext();
//TODO its not clear what the scope for one of these context should be: ejb, module, or app
//For now, go with the attachment of the BeanManager to AppContext
final AppContext appContext = moduleContext.getAppContext();
final WebBeansContext owbContext = appContext.getWebBeansContext();
final Object oldOWBContext;
if (owbContext != null) {
oldOWBContext = singletonService.contextEntered(owbContext);
} else {
oldOWBContext = null;
}
final OWBContextHolder holder = new OWBContextHolder(oldOWBContext);
newContext.set(OWBContextHolder.class, holder);
}
@Override
public void contextExited(final ThreadContext exitedContext, final ThreadContext reenteredContext) {
final OWBContextHolder oldOWBContext = exitedContext.get(OWBContextHolder.class);
if (oldOWBContext == null) {
throw new NullPointerException("OWBContext not set in this thread");
}
final Object oldOWBContextContext = oldOWBContext.getContext();
if (oldOWBContextContext != null) {
singletonService.contextExited(oldOWBContextContext);
}
}
private static final class OWBContextHolder {
private final Object context;
private OWBContextHolder(final Object context) {
this.context = context;
}
public Object getContext() {
return context;
}
}
}