/*
* JBoss, Home of Professional Open Source.
* Copyright (c) 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file 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.ejb3.component.stateful;
import java.rmi.NoSuchObjectException;
import java.rmi.RemoteException;
import javax.ejb.ConcurrentAccessException;
import javax.ejb.ConcurrentAccessTimeoutException;
import javax.ejb.NoSuchEJBException;
import javax.ejb.NoSuchObjectLocalException;
import org.jboss.as.ee.component.ComponentInstance;
import org.jboss.as.ee.component.ComponentView;
import org.jboss.as.ejb3.component.interceptors.AbstractEJBInterceptor;
import org.jboss.ejb.client.SessionID;
import org.jboss.invocation.Interceptor;
import org.jboss.invocation.InterceptorContext;
import org.jboss.invocation.InterceptorFactory;
import org.jboss.invocation.InterceptorFactoryContext;
import org.jboss.logging.Logger;
import static org.jboss.as.ejb3.EjbMessages.MESSAGES;
import static org.jboss.as.ejb3.EjbLogger.ROOT_LOGGER;
/**
* Associate the proper component instance to the invocation based on the passed in session identifier.
*
* @author <a href="mailto:cdewolf@redhat.com">Carlo de Wolf</a>
*/
public class StatefulComponentInstanceInterceptor extends AbstractEJBInterceptor {
private static final Logger log = Logger.getLogger(StatefulComponentInstanceInterceptor.class);
@Override
public Object processInvocation(InterceptorContext context) throws Exception {
StatefulSessionComponent component = getComponent(context, StatefulSessionComponent.class);
// TODO: this is a contract with the client interceptor
SessionID sessionId = (SessionID) context.getPrivateData(SessionID.SESSION_ID_KEY);
if (sessionId == null) {
throw MESSAGES.statefulSessionIdIsNull(component.getComponentName());
}
ROOT_LOGGER.debug("Looking for stateful component instance with session id: " + sessionId);
StatefulSessionComponentInstance instance = component.getCache().get(sessionId);
if(instance == null) {
final ComponentView view = context.getPrivateData(ComponentView.class);
if(view.getViewClass() == component.getEjbLocalObjectType()) {
throw new NoSuchObjectLocalException("Could not find SFSB " + component.getComponentName() + " with " + sessionId);
} else if(view.getViewClass() == component.getEjbObjectType()) {
throw new NoSuchObjectException("Could not find SFSB " + component.getComponentName() + " with " + sessionId);
} else {
throw new NoSuchEJBException("Could not find SFSB " + component.getComponentName() + " with " + sessionId);
}
}
try {
context.putPrivateData(ComponentInstance.class, instance);
return context.proceed();
} catch (Exception ex) {
// Detect app exception
if (component.getApplicationException(ex.getClass(), context.getMethod()) != null) {
// it's an application exception, just throw it back.
throw ex;
}
if (ex instanceof ConcurrentAccessTimeoutException || ex instanceof ConcurrentAccessException) {
throw ex;
}
if (ex instanceof RuntimeException || ex instanceof RemoteException) {
if (ROOT_LOGGER.isTraceEnabled())
ROOT_LOGGER.trace("Removing bean " + sessionId + " because of exception", ex);
component.getCache().discard(sessionId);
}
throw ex;
} catch (final Error e) {
if (ROOT_LOGGER.isTraceEnabled())
ROOT_LOGGER.trace("Removing bean " + sessionId + " because of error", e);
component.getCache().discard(sessionId);
throw e;
} catch (final Throwable t) {
if (ROOT_LOGGER.isTraceEnabled())
ROOT_LOGGER.trace("Removing bean " + sessionId + " because of Throwable", t);
component.getCache().discard(sessionId);
throw new RuntimeException(t);
} finally {
// the StatefulSessionSynchronizationInterceptor will take care of releasing
context.putPrivateData(ComponentInstance.class, null);
}
}
static StatefulSessionComponentInstance getComponentInstance(InterceptorContext context) {
return (StatefulSessionComponentInstance) context.getPrivateData(ComponentInstance.class);
}
public static class Factory implements InterceptorFactory {
public static final InterceptorFactory INSTANCE = new Factory();
private Factory() {
}
@Override
public Interceptor create(InterceptorFactoryContext context) {
return new StatefulComponentInstanceInterceptor();
}
}
}