/**
 * <copyright> Copyright (c) 2006 by Know-Center, Graz, Austria </copyright>
 * 
 * This software is the confidential and proprietary information of Know-Center,
 * Graz, Austria. You shall not disclose such Confidential Information and shall
 * use it only in accordance with the terms of the license agreement you entered
 * into with Know-Center.
 * 
 * KNOW-CENTER MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
 * NON-INFRINGEMENT. KNOW-CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY
 * LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES.
 * 
 * $Id: AsynchronousDataResponder.java,v 1.3 2006/08/30 14:02:35 wprinz Exp $
 */
package at.knowcenter.wag.egov.egiz.web;

import java.io.IOException;
import java.util.Enumeration;
import java.util.List;
import java.util.Properties;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.log4j.Logger;

import at.knowcenter.wag.egov.egiz.cfg.ConfigLogger;
import at.knowcenter.wag.egov.egiz.cfg.SettingsReader;
import at.knowcenter.wag.egov.egiz.sig.connectors.BKUPostConnection;

/**
 * Servlet that responds to the data post requests of the local service (e.g.
 * BKU).
 * 
 * @deprecated
 * 
 * @author wprinz
 */
public class AsynchronousDataResponder extends HttpServlet
{

  /**
   * SVUID.
   */
  private static final long serialVersionUID = -4992297156381763174L;

//  /**
//   * The logger definition.
//   */
//  private static final Logger logger_ = ConfigLogger.getLogger(AsynchronousDataResponder.class);
//
//  protected void doGet(HttpServletRequest arg0, HttpServletResponse arg1) throws ServletException, IOException
//  {
//    logger_.debug("AsyncDataResp GET REQUEST.");
//    super.doGet(arg0, arg1);
//  }
//
//  protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
//  {
//    logger_.debug("AsyncDataResp !!!!!!!!!!!!!!!!!!!!!!");
//
//    HttpSession session = request.getSession(false);
//    if (session == null)
//    {
//      throw new ServletException("There is no session associated with this request.");
//    }
//
//    // String session_id_string = request.getParameter("session");
//    // if (session_id_string == null)
//    // {
//    // throw new ServletException("The session parameter is missing.");
//    // }
//
//    SessionInformation si = (SessionInformation) session.getAttribute(SessionAttributes.ATTRIBUTE_SESSION_INFORMATION);
//    // long session_id = Long.parseLong(session_id_string);
//    // SessionInformation si = SessionTable.get(session_id);
//    if (si == null)
//    {
//      throw new ServletException("The session is not found or no longer valid.");
//    }
//
//    // InputStream is = request.getInputStream();
//    // byte [] data = new byte[request.getContentLength()];
//    // is.read(data);
//    // is.close();
//    // String enc = request.getCharacterEncoding();
//    // String ct = request.getContentType();
//    // Enumeration enum = request.getHeaderNames();
//    //    
//    // String dat = new String(data, "US-ASCII");
//    // // dat looks like: XMLResponse=blablabla ...
//    // // so the actual XMLResponse begins after the =
//    // String resp = URLDecoder.decode(dat, "UTF-8");
//
//    logger_.debug("Answer from local service: content-type = '" + request.getContentType() + "', character encoding = '" + request.getCharacterEncoding() + "'");
//
//    // .getParameter will use the character encoding specified by the
//    // content-type header.
//    // Unfortunately BKU forgets to specify a chatacter encoding.
//    // Therefor, .getParameter will assume US-ASCII or something.
//    // ==> we explicitely set UTF-8
//    if (request.getCharacterEncoding() == null)
//    {
//      request.setCharacterEncoding("UTF-8");
//      logger_.debug("  no character encoding specified - set to UTF-8");
//    }
//
//    logger_.debug("AsyncDataResponder: si.current_operation = " + si.current_operation);
//
//    String resp_string = request.getParameter("XMLResponse");
//    if (resp_string == null)
//    {
//      logger_.debug("response String is null => trying multipart form");
//
//      DiskFileItemFactory fif = new DiskFileItemFactory();
//      fif.setRepository(SettingsReader.getTemporaryDirectory());
//      ServletFileUpload sfu = new ServletFileUpload(fif);
//
//      try
//      {
//        List items = sfu.parseRequest(request);
//        
//        for (int i = 0; i < items.size(); i++)
//        {
//          FileItem item = (FileItem) items.get(i);
//          logger_.debug("item = " + item.getFieldName());
//          
//          if (item.getFieldName().equals("XMLResponse"))
//          {
//            resp_string = item.getString("UTF-8");
//          }
//        }
//      }
//      catch (FileUploadException e)
//      {
//        throw new ServletException("File Upload exception. cannot parse POST data");
//      }
//
//    }
//
//    // TODO hotfix - already deprecated
//    if (logger_.isDebugEnabled())
//    {
//      Enumeration header_names = request.getHeaderNames();
//      while (header_names.hasMoreElements())
//      {
//        String header_name = (String)header_names.nextElement();
//        String header_value = request.getHeader(header_name);
//        logger_.debug("header: name = " + header_name + ", value = " +header_value);
//      }
//    }
//    String user_agent = request.getHeader("User-Agent");
//    logger_.debug("User-Agent header = " + user_agent);
//    Properties response_properties = new Properties();
//    BKUPostConnection.parseBKUVersion(user_agent, response_properties);
//    response_properties.setProperty("response_string", resp_string);
//    si.response_properties[si.current_operation] = response_properties; //request.getParameter("XMLResponse");
//    //logger_.debug("AsyncDataResponder: si.response_string[si.current_operation] = " + si.response_string[si.current_operation]);
//
//    si.current_operation++;
//
//    si.finished = true;
//
//    LocalRequestHelper.formatBKUOkResponse(response);
//  }
}