/*
* JBoss, Home of Professional Open Source.
* Copyright 2009, Red Hat Middleware LLC, 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.ejb3.sis;
import java.lang.reflect.Method;
import java.util.Map;
import javax.interceptor.InvocationContext;
/**
* @author <a href="mailto:cdewolf@redhat.com">Carlo de Wolf</a>
* @version $Revision: $
*/
public class InterceptorAssembly implements Interceptor
{
private Interceptor[] interceptors;
public InterceptorAssembly(Interceptor interceptors[])
{
assert interceptors != null : "interceptors = null";
this.interceptors = interceptors;
}
public Object invoke(final InvocationContext context) throws Exception
{
InvocationContext current = new InvocationContext() {
private int currentInterceptor = 0;
public Map<String, Object> getContextData()
{
return context.getContextData();
}
public Method getMethod()
{
return context.getMethod();
}
public Object[] getParameters()
{
return context.getParameters();
}
public Object getTarget()
{
return context.getTarget();
}
public Object proceed() throws Exception
{
if(currentInterceptor < interceptors.length)
{
try
{
return interceptors[currentInterceptor++].invoke(this);
}
finally
{
// so that interceptors like clustering can reinvoke down the chain
currentInterceptor--;
}
}
return context.proceed();
}
public void setParameters(Object[] params)
{
context.setParameters(params);
}
};
return current.proceed();
}
}