/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, 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.ha.framework.test;
import org.jboss.invocation.Invocation;
import org.jboss.ha.framework.interfaces.GenericClusteringException;
/**
* Used for testing clustering; allows an explicit call to make a node fail.
* This will mimic a dead server.
*
* @see org.jboss.ha.framework.test.ExplicitFailoverClientInterceptor
*
* @author <a href="mailto:sacha.labourey@cogito-info.ch">Sacha Labourey</a>.
* @version $Revision: 81001 $
*
* <p><b>Revisions:</b>
*
* <p><b>8 avril 2002 Sacha Labourey:</b>
* <ul>
* <li> First implementation </li>
* </ul>
*/
public class ExplicitFailoverServerInterceptor extends org.jboss.ejb.plugins.AbstractInterceptor
{
// Constants -----------------------------------------------------
// Attributes ----------------------------------------------------
protected org.jboss.ejb.Container container;
// Static --------------------------------------------------------
// Constructors --------------------------------------------------
public ExplicitFailoverServerInterceptor ()
{
}
// Public --------------------------------------------------------
public void setContainer(org.jboss.ejb.Container container)
{
this.container = container;
}
public org.jboss.ejb.Container getContainer()
{
return container;
}
// Z implementation ----------------------------------------------
// AbstractInterceptor overrides ---------------------------------------------------
public Object invokeHome(Invocation mi)
throws Exception
{
checkFailoverNeed (mi);
return super.invokeHome (mi);
}
public Object invoke(Invocation mi)
throws Exception
{
checkFailoverNeed (mi);
return super.invoke (mi);
}
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
protected void checkFailoverNeed (Invocation mi)
throws GenericClusteringException
{
Object data = mi.getValue ("DO_FAIL_DURING_NEXT_CALL");
if (data != null &&
data instanceof java.lang.Boolean &&
data.equals (java.lang.Boolean.TRUE))
{
// we now determine if we have already failed
//
Object alreadyDone = mi.getValue ("FAILOVER_COUNTER");
if (alreadyDone != null &&
alreadyDone instanceof java.lang.Integer &&
((java.lang.Integer)alreadyDone).intValue () == 0)
{
// we do fail
//
this.log.debug ("WE FAILOVER IN SERVER INTERCEPTOR (explicit failover asked by client interceptor)!");
throw new GenericClusteringException
(GenericClusteringException.COMPLETED_NO, "Test failover from server interceptor", false);
}
}
}
// Private -------------------------------------------------------
// Inner classes -------------------------------------------------
}