/*
* 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.session;
import org.jboss.as.ee.component.ComponentInstance;
import org.jboss.as.ee.component.ComponentViewInstance;
import org.jboss.as.ejb3.component.CancellationFlag;
import org.jboss.ejb3.context.CurrentInvocationContext;
import org.jboss.ejb3.context.base.BaseSessionInvocationContext;
import org.jboss.ejb3.context.spi.InvocationContext;
import org.jboss.ejb3.context.spi.SessionContext;
import org.jboss.ejb3.context.spi.SessionInvocationContext;
import org.jboss.invocation.ImmediateInterceptorFactory;
import org.jboss.invocation.Interceptor;
import org.jboss.invocation.InterceptorContext;
import org.jboss.invocation.InterceptorFactory;
import java.lang.reflect.Method;
import java.security.Principal;
import java.util.Map;
/**
* @author <a href="mailto:cdewolf@redhat.com">Carlo de Wolf</a>
*/
public class SessionInvocationContextInterceptor implements Interceptor {
public static final InterceptorFactory FACTORY = new ImmediateInterceptorFactory(new SessionInvocationContextInterceptor(false));
public static final InterceptorFactory LIFECYCLE_FACTORY = new ImmediateInterceptorFactory(new SessionInvocationContextInterceptor(true));
private final boolean lifecycleCallback;
private SessionInvocationContextInterceptor(final boolean lifecycleCallback) {
this.lifecycleCallback = lifecycleCallback;
}
@Override
public Object processInvocation(InterceptorContext context) throws Exception {
final Method invokedMethod = context.getMethod();
final ComponentViewInstance componentViewInstance = context.getPrivateData(ComponentViewInstance.class);
// For a lifecycle interception, the ComponentViewInstance (and the invoked business interface) will be null.
// On a normal method invocation, the invoked business interface will be obtained from the ComponentViewInstance
final Class<?> invokedBusinessInterface = componentViewInstance == null ? null : componentViewInstance.getViewClass();
Object[] parameters = context.getParameters();
SessionInvocationContext sessionInvocationContext = new CustomSessionInvocationContext(lifecycleCallback, context, invokedBusinessInterface, invokedMethod, parameters);
context.putPrivateData(InvocationContext.class, sessionInvocationContext);
CurrentInvocationContext.push(sessionInvocationContext);
try {
return context.proceed();
} finally {
CurrentInvocationContext.pop();
context.putPrivateData(InvocationContext.class, null);
}
}
protected static class CustomSessionInvocationContext extends BaseSessionInvocationContext {
private InterceptorContext context;
protected CustomSessionInvocationContext(boolean lifecycleCallback, InterceptorContext context, Class<?> invokedBusinessInterface, Method method, Object[] parameters) {
super(lifecycleCallback, invokedBusinessInterface, method, parameters);
this.context = context;
}
@Override
public Principal getCallerPrincipal() {
return ((SessionBeanComponent) getComponent()).getCallerPrincipal();
}
@Override
public Map<String, Object> getContextData() {
return context.getContextData();
}
@Override
public SessionContext getEJBContext() {
return ((SessionBeanComponentInstance) context.getPrivateData(ComponentInstance.class)).getSessionContext();
}
@Override
public Object proceed() throws Exception {
return context.proceed();
}
@Override
public void setParameters(Object[] params) throws IllegalArgumentException, IllegalStateException {
context.setParameters(params);
}
public boolean wasCancelCalled() throws IllegalStateException {
final CancellationFlag flag = context.getPrivateData(CancellationFlag.class);
if (flag != null) {
return flag.get();
}
return super.wasCancelCalled();
}
}
}