/*
* 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.
*/
package org.apache.deltaspike.servlet.impl.produce;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
/**
* This filter stores the current request and response in the {@link RequestResponseHolder}.
*/
public class RequestResponseHolderFilter implements Filter
{
@Override
public void init(FilterConfig config) throws ServletException
{
// nothing yet
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException,
ServletException
{
/*
* Typically the request is bound to the thread in RequestResponseHolderListener. But as this listener was added
* after the initial release of the Servlet module, the filter will also do it if necessary.
*/
final boolean alreadyBound = RequestResponseHolder.REQUEST.isBound();
if (!alreadyBound)
{
RequestResponseHolder.REQUEST.bind(request);
}
try
{
RequestResponseHolder.RESPONSE.bind(response);
try
{
chain.doFilter(request, response);
}
finally
{
RequestResponseHolder.RESPONSE.release();
}
}
finally
{
if (!alreadyBound)
{
RequestResponseHolder.REQUEST.release();
}
}
}
@Override
public void destroy()
{
// nothing yet
}
}