/*
* JBoss, Home of Professional Open Source
* Copyright 2010, Red Hat Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.weld.ejb;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import org.jboss.as.ee.component.ComponentView;
import org.jboss.as.server.CurrentServiceContainer;
import org.jboss.msc.service.ServiceController;
import org.jboss.msc.service.ServiceName;
import org.jboss.weld.ejb.api.SessionObjectReference;
/**
* Implementation for non-stateful beans, a new view instance is looked up each time
*
* @author Stuart Douglas
*/
public class SessionObjectReferenceImpl implements SessionObjectReference {
private final Map<String, ServiceName> viewServices;
public SessionObjectReferenceImpl(EjbDescriptorImpl<?> descriptor) {
final Map<String, ServiceName> viewServices = new HashMap<String, ServiceName>();
for (Map.Entry<Class<?>, ServiceName> entry : descriptor.getViewServices().entrySet()) {
final Class<?> viewClass = entry.getKey();
if (viewClass != null) {
//see WELD-921
//this is horrible, but until it is fixed there is not much that can be done
final Set<Class<?>> seen = new HashSet<Class<?>>();
final Set<Class<?>> toProcess = new HashSet<Class<?>>();
toProcess.add(viewClass);
while (!toProcess.isEmpty()) {
Iterator<Class<?>> it = toProcess.iterator();
final Class<?> clazz = it.next();
it.remove();
seen.add(clazz);
viewServices.put(clazz.getName(), entry.getValue());
final Class<?> superclass = clazz.getSuperclass();
if (superclass != Object.class && superclass != null && !seen.contains(superclass)) {
toProcess.add(superclass);
}
for (Class<?> iface : clazz.getInterfaces()) {
if (!seen.contains(iface)) {
toProcess.add(iface);
}
}
}
}
}
this.viewServices = viewServices;
}
@Override
@SuppressWarnings({"unchecked"})
public synchronized <S> S getBusinessObject(Class<S> businessInterfaceType) {
//TODO: this should be cached
if (viewServices.containsKey(businessInterfaceType.getName())) {
final ServiceController<?> serviceController = CurrentServiceContainer.getServiceContainer().getRequiredService(viewServices.get(businessInterfaceType.getName()));
final ComponentView view = (ComponentView) serviceController.getValue();
try {
return(S) view.createInstance().getInstance();
} catch (Exception e) {
throw new RuntimeException(e);
}
} else {
throw new IllegalArgumentException("View of type " + businessInterfaceType + " not found on bean ");
}
}
@Override
public void remove() {
//nop
}
@Override
public boolean isRemoved() {
return false;
}
}