/*
* 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.io.IOException;
import java.io.Serializable;
import java.security.AccessController;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.jboss.as.ee.component.ComponentView;
import org.jboss.as.ejb3.cache.Cache;
import org.jboss.as.ejb3.component.stateful.StatefulSessionComponent;
import org.jboss.as.ejb3.component.stateful.StatefulSessionComponentInstance;
import org.jboss.as.naming.ManagedReference;
import org.jboss.as.server.CurrentServiceContainer;
import org.jboss.as.weld._private.WeldEjbLogger;
import org.jboss.as.weld.logging.WeldLogger;
import org.jboss.ejb.client.SessionID;
import org.jboss.msc.service.ServiceContainer;
import org.jboss.msc.service.ServiceController;
import org.jboss.msc.service.ServiceName;
import org.jboss.weld.ejb.api.SessionObjectReference;
/**
* Implementation for SFSB's
*
* @author Stuart Douglas
*/
public class StatefulSessionObjectReferenceImpl implements SessionObjectReference, Serializable {
private volatile boolean removed = false;
private final ServiceName createServiceName;
private final SessionID id;
private final StatefulSessionComponent ejbComponent;
private final Map<Class<?>, ServiceName> viewServices;
private transient Map<String, ManagedReference> businessInterfaceToReference;
public StatefulSessionObjectReferenceImpl(final SessionID id, final ServiceName createServiceName, final Map<Class<?>, ServiceName> viewServices) {
this.id = id;
this.createServiceName = createServiceName;
this.viewServices = viewServices;
final ServiceController<?> controller = currentServiceContainer().getRequiredService(createServiceName);
ejbComponent = (StatefulSessionComponent) controller.getValue();
}
public StatefulSessionObjectReferenceImpl(EjbDescriptorImpl<?> descriptor) {
this.createServiceName = descriptor.getCreateServiceName();
final ServiceController<?> controller = currentServiceContainer().getRequiredService(createServiceName);
ejbComponent = (StatefulSessionComponent) controller.getValue();
this.id = ejbComponent.createSession();
this.viewServices = descriptor.getViewServices();
}
@Override
@SuppressWarnings({ "unchecked" })
public synchronized <S> S getBusinessObject(Class<S> businessInterfaceType) {
if (isRemoved()) {
WeldEjbLogger.ROOT_LOGGER.ejbHashBeenRemoved(ejbComponent);
}
final String businessInterfaceName = businessInterfaceType.getName();
ManagedReference managedReference = null;
if (businessInterfaceToReference == null) {
businessInterfaceToReference = new HashMap<String, ManagedReference>();
} else {
managedReference = businessInterfaceToReference.get(businessInterfaceName);
}
if (managedReference == null) {
if (viewServices.containsKey(businessInterfaceType)) {
final ServiceController<?> serviceController = currentServiceContainer().getRequiredService(
viewServices.get(businessInterfaceType));
final ComponentView view = (ComponentView) serviceController.getValue();
try {
managedReference = view.createInstance(Collections.<Object, Object> singletonMap(SessionID.class, id));
businessInterfaceToReference.put(businessInterfaceName, managedReference);
} catch (Exception e) {
throw new RuntimeException(e);
}
} else {
throw WeldLogger.ROOT_LOGGER
.viewNotFoundOnEJB(businessInterfaceType.getName(), ejbComponent.getComponentName());
}
}
return (S) managedReference.getInstance();
}
private static ServiceContainer currentServiceContainer() {
if(System.getSecurityManager() == null) {
return CurrentServiceContainer.getServiceContainer();
}
return AccessController.doPrivileged(CurrentServiceContainer.GET_ACTION);
}
protected Object writeReplace() throws IOException {
return new SerializedStatefulSessionObject(createServiceName, id, viewServices);
}
@Override
public void remove() {
if (!isRemoved()) {
ejbComponent.removeSession(id);
removed = true;
}
}
@Override
public boolean isRemoved() {
if (!removed) {
Cache<SessionID, StatefulSessionComponentInstance> cache = ejbComponent.getCache();
if(cache == null) {
return true;
}
return !cache.contains(id);
}
return true;
}
}