/*
* 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 java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.concurrent.atomic.AtomicReference;
import org.jboss.as.naming.ManagedReference;
import org.jboss.invocation.Interceptor;
import org.jboss.invocation.InterceptorContext;
import org.jboss.invocation.InterceptorFactory;
import org.jboss.invocation.InterceptorFactoryContext;
import org.jboss.invocation.Interceptors;
/**
* @author <a href="mailto:david.lloyd@redhat.com">David M. Lloyd</a>
*/
final class ManagedReferenceMethodInterceptorFactory implements InterceptorFactory {
private final Object contextKey;
private final Method method;
ManagedReferenceMethodInterceptorFactory(final Object contextKey, final Method method) {
this.contextKey = contextKey;
this.method = method;
}
public Interceptor create(final InterceptorFactoryContext context) {
@SuppressWarnings("unchecked")
final AtomicReference<ManagedReference> ref = (AtomicReference<ManagedReference>) context.getContextData().get(contextKey);
return new ManagedReferenceMethodInterceptor(ref, method);
}
static final class ManagedReferenceMethodInterceptor implements Interceptor {
private final AtomicReference<ManagedReference> instanceRef;
private final Method method;
ManagedReferenceMethodInterceptor(final AtomicReference<ManagedReference> instanceRef, final Method method) {
this.method = method;
this.instanceRef = instanceRef;
}
/**
* {@inheritDoc}
*/
public Object processInvocation(final InterceptorContext context) throws Exception {
final ManagedReference reference = instanceRef.get();
final Object instance = reference.getInstance();
try {
return method.invoke(instance, context.getParameters());
} catch (IllegalAccessException e) {
final IllegalAccessError n = new IllegalAccessError(e.getMessage());
n.setStackTrace(e.getStackTrace());
throw n;
} catch (InvocationTargetException e) {
throw Interceptors.rethrow(e.getCause());
}
}
}
}