/*
* JBoss, Home of Professional Open Source.
* Copyright 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.ee.component;
import org.jboss.invocation.CannotProceedException;
import org.jboss.invocation.Interceptor;
import org.jboss.invocation.InterceptorContext;
/**
* The dispatcher interceptor. Last interceptor in the component-level interceptor chain which
* dispatches the invocation to the per-instance chain.
*
* @author <a href="mailto:david.lloyd@redhat.com">David M. Lloyd</a>
*/
class DispatcherInterceptor implements Interceptor {
public static final Interceptor INSTANCE = new DispatcherInterceptor();
public Object processInvocation(final InterceptorContext context) throws Exception {
// Get the appropriate method from the previously associated instance
final ComponentInstance instance = context.getPrivateData(ComponentInstance.class);
if (instance == null) {
throw new CannotProceedException("No instance is associated with this component class");
}
context.setTarget(instance.getInstance());
final Interceptor interceptor = instance.getInterceptor(context.getMethod());
return interceptor.processInvocation(context);
}
}