/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.filters;
import java.io.IOException;
import java.util.ArrayList;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;
/**
* Adds custom headers to a response
*
* @since Resin 3.2.1
*/
public class HeaderFilter implements Filter
{
private ArrayList<Header> _headerList = new ArrayList<Header>();
public void addHeader(Header header)
{
_headerList.add(header);
}
public void init(FilterConfig config)
throws ServletException
{
}
/**
* Creates a wrapper to compress the output.
*/
public void doFilter(ServletRequest request,
ServletResponse response,
FilterChain nextFilter)
throws ServletException, IOException
{
HttpServletResponse res = (HttpServletResponse) response;
int size = _headerList.size();
for (int i = 0; i < size; i++) {
Header header = _headerList.get(i);
res.addHeader(header.getName(), header.getValue());
}
nextFilter.doFilter(request, response);
}
/**
* Any cleanup for the filter.
*/
public void destroy()
{
}
public static class Header {
private String _name;
private String _value;
public void setName(String name)
{
_name = name;
}
public String getName()
{
return _name;
}
public void setValue(String value)
{
_value = value;
}
public String getValue()
{
return _value;
}
}
}