/*
* JBoss, Home of Professional Open Source
* Copyright (c) 2010, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt 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.context;
import org.jboss.ejb3.context.spi.InvocationContext;
import org.jboss.ejb3.context.util.ThreadLocalStack;
/**
* @author <a href="cdewolf@redhat.com">Carlo de Wolf</a>
*/
public class CurrentInvocationContext
{
private static ThreadLocalStack<InvocationContext> stack = new ThreadLocalStack<InvocationContext>();
public static InvocationContext get()
{
InvocationContext current = stack.get();
if(current == null)
throw new IllegalStateException("No current invocation context available");
return current;
}
public static <T extends InvocationContext> T get(Class<T> expectedType)
{
return expectedType.cast(get());
}
public static InvocationContext pop()
{
return stack.pop();
}
public static void push(InvocationContext invocation)
{
assert invocation != null : "invocation is null";
stack.push(invocation);
}
}