/*
* 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.server.dispatch;
//import com.caucho.soa.servlet.ProtocolServlet;
import javax.servlet.*;
import java.io.IOException;
import java.util.HashMap;
import java.util.logging.*;
/**
* Represents the final servlet in a filter chain.
*/
public class WebServiceFilterChain implements FilterChain {
private static final Logger log
= Logger.getLogger(WebServiceFilterChain.class.getName());
public static final String SERVLET_NAME
= "javax.servlet.error.servlet_name";
// servlet config
private ServletConfigImpl _config;
// protocol skeleton
// private ProtocolServlet _skeleton;
private Servlet _skeleton;
/**
* Create the filter chain servlet.
*
* @param servlet the underlying servlet
*/
public WebServiceFilterChain(ServletConfigImpl config)
{
if (config == null)
throw new NullPointerException();
_config = config;
}
/**
* Returns the servlet name.
*/
public String getServletName()
{
return _config.getServletName();
}
/**
* Returns the role map.
*/
public HashMap<String,String> getRoleMap()
{
return _config.getRoleMap();
}
/**
* Invokes the final servlet at the end of the chain.
*
* @param request the servlet request
* @param response the servlet response
*
* @since Servlet 2.3
*/
public void doFilter(ServletRequest request,
ServletResponse response)
throws ServletException, IOException
{
if (_skeleton == null) {
_skeleton = _config.createProtocolServlet();
}
try {
_skeleton.service(request, response);
} catch (UnavailableException e) {
_skeleton = null;
_config.setInitException(e);
_config.killServlet();
request.setAttribute(SERVLET_NAME, _config.getServletName());
throw e;
} catch (ServletException e) {
request.setAttribute(SERVLET_NAME, _config.getServletName());
throw e;
} catch (IOException e) {
request.setAttribute(SERVLET_NAME, _config.getServletName());
throw e;
} catch (RuntimeException e) {
request.setAttribute(SERVLET_NAME, _config.getServletName());
throw e;
} catch (Exception e) {
request.setAttribute(SERVLET_NAME, _config.getServletName());
throw new ServletException(e);
}
}
public String toString()
{
return getClass().getSimpleName() + "[" + _skeleton + "]";
}
}