/*
* 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 Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.server.dispatch;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
* Responds with an error code.
*/
public class ErrorFilterChain implements FilterChain {
// servlet
private int _errorCode;
private String _message;
/**
* Create the error filter chain servlet.
*
* @param errorCode the HTTP error code
*/
public ErrorFilterChain(int errorCode)
{
_errorCode = errorCode;
}
/**
* Create the error filter chain servlet.
*
* @param errorCode the HTTP error code
*/
public ErrorFilterChain(int errorCode, String message)
{
_errorCode = errorCode;
_message = message;
}
/**
* Invokes the final servlet at the end of the chain.
*
* @param request the servlet request
* @param response the servlet response
*
* @since Servlet 2.3
*/
@Override
public void doFilter(ServletRequest request,
ServletResponse response)
throws ServletException, IOException
{
HttpServletResponse res = (HttpServletResponse) response;
if (_message != null)
res.sendError(_errorCode, _message);
else
res.sendError(_errorCode);
}
@Override
public String toString()
{
return getClass().getSimpleName() + "[" + _errorCode + "]";
}
}