/**
 * <copyright> Copyright 2006 by Know-Center, Graz, Austria </copyright>
 * PDF-AS has been contracted by the E-Government Innovation Center EGIZ, a
 * joint initiative of the Federal Chancellery Austria and Graz University of
 * Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 *
 * $Id: SignPreview.java,v 1.2 2006/10/11 07:39:13 wprinz Exp $
 */
package at.gv.egiz.pdfas.web.servlets;

import java.io.IOException;

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import at.gv.egiz.pdfas.api.exceptions.PdfAsException;
import at.gv.egiz.pdfas.web.helper.SessionHelper;
import at.gv.egiz.pdfas.web.helper.SignServletHelper;
import at.gv.egiz.pdfas.web.session.SignSessionInformation;

/**
 * @author wprinz
 */
public class SignPreviewServlet extends HttpServlet
{

   protected static Log logger = LogFactory.getLog(SignPreviewServlet.class);

  /**
   * SVUID.
   */
  private static final long serialVersionUID = -8818532511322299998L;

  protected void dispatch(HttpServletRequest request,
      HttpServletResponse response, String resource) throws ServletException, IOException
  {
    response.setContentType("text/html");
    response.setCharacterEncoding("UTF-8");

    RequestDispatcher disp = getServletContext().getRequestDispatcher(resource);
    disp.forward(request, response);
  }

  protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
  {
    try
    {
      Object sessionObject = SessionHelper.getSession(request);
      
      SignSessionInformation si = (SignSessionInformation) sessionObject;
      
      SignServletHelper.finishSign(si, request, response, getServletContext());
    } 
      catch (PdfAsException e) {
      logger.error(e.getMessage(), e);

      SignServlet.prepareDispatchToErrorPage(e, request);
      dispatch(request, response, "/jsp/error.jsp");
   }
  }
}