package org.apache.turbine.pipeline;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import java.io.IOException;
import org.apache.turbine.util.RunData;
import org.apache.turbine.util.TurbineException;
import org.apache.turbine.util.security.AccessControlList;
/**
* Implements the RunData target portion of the "Turbine classic"
* processing pipeline (from the Turbine 2.x series).
*
* @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a>
* @author <a href="mailto:jon@latchkey.com">Jon S. Stevens</a>
* @author <a href="mailto:dlr@finemaltcoding.com">Daniel Rall</a>
* @author <a href="mailto:mikeh@apache.org">Mike Haberman</a>
* @author <a href="mailto:james@jamestaylor.org">James Taylor</a>
* @author <a href="mailto:mpoeschl@marmot.at">Martin Poeschl</a>
* @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a>
* @version $Id: CleanUpValve.java 757213 2009-03-22 16:43:31Z tv $
*/
public class CleanUpValve
extends AbstractValve
{
/**
* Creates a new instance.
*/
public CleanUpValve()
{
// empty constructor
}
/**
* @see org.apache.turbine.Valve#invoke(RunData, ValveContext)
*/
public void invoke(PipelineData pipelineData, ValveContext context)
throws IOException, TurbineException
{
try
{
cleanUp(pipelineData);
}
catch (Exception e)
{
throw new TurbineException(e);
}
// Pass control to the next Valve in the Pipeline
context.invokeNext(pipelineData);
}
/**
* Perform clean up after processing the request.
*
* @param data The run-time data.
*/
protected void cleanUp(PipelineData pipelineData)
throws Exception
{
RunData data = getRunData(pipelineData);
// If a module has set data.acl = null, remove acl from
// the session.
if (data.getACL() == null)
{
try
{
data.getSession().removeAttribute
(AccessControlList.SESSION_KEY);
}
catch (IllegalStateException invalidatedSession)
{
// Web was used to shut us down. Trying to clean up
// our stuff, but it's already been done for us.
}
}
}
}