/*
* 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.InvocationHandler;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import org.jboss.invocation.Interceptor;
import org.jboss.invocation.InterceptorContext;
/**
* An invocation handler for a component proxy.
*
* @author <a href="mailto:david.lloyd@redhat.com">David M. Lloyd</a>
*/
public final class ProxyInvocationHandler implements InvocationHandler {
private final Map<Method, Interceptor> interceptors;
private final Component component;
private final ComponentView componentView;
/**
* Construct a new instance.
*
* @param interceptors the interceptors map to use
* @param component The component
* @param componentView The component view
*/
public ProxyInvocationHandler(final Map<Method, Interceptor> interceptors, Component component, ComponentView componentView) {
this.interceptors = interceptors;
this.component = component;
this.componentView = componentView;
}
/** {@inheritDoc} */
public Object invoke(final Object proxy, final Method method, final Object[] args) throws Throwable {
final Interceptor interceptor = interceptors.get(method);
if (interceptor == null) {
throw new NoSuchMethodError(method.toString());
}
final InterceptorContext context = new InterceptorContext();
// special location for original proxy
context.putPrivateData(Object.class, proxy);
context.putPrivateData(Component.class, component);
context.putPrivateData(ComponentView.class, componentView);
context.setParameters(args);
context.setMethod(method);
// setup the public context data
context.setContextData(new HashMap());
return interceptor.processInvocation(context);
}
}