    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/portal/standard/wms/control/MapRequestDispatcher.java $
    002    /*----------------------------------------------------------------------------
    003     This file is part of deegree, http://deegree.org/
    004     Copyright (C) 2001-2009 by:
    005       Department of Geography, University of Bonn
    006     and
    007       lat/lon GmbH
    008
    009     This library is free software; you can redistribute it and/or modify it under
    010     the terms of the GNU Lesser General Public License as published by the Free
    011     Software Foundation; either version 2.1 of the License, or (at your option)
    012     any later version.
    013     This library is distributed in the hope that it will be useful, but WITHOUT
    014     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    015     FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
    016     details.
    017     You should have received a copy of the GNU Lesser General Public License
    018     along with this library; if not, write to the Free Software Foundation, Inc.,
    019     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    020
    021     Contact information:
    022
    023     lat/lon GmbH
    024     Aennchenstr. 19, 53177 Bonn
    025     Germany
    026     http://lat-lon.de/
    027
    028     Department of Geography, University of Bonn
    029     Prof. Dr. Klaus Greve
    030     Postfach 1147, 53001 Bonn
    031     Germany
    032     http://www.geographie.uni-bonn.de/deegree/
    033
    034     e-mail: info@deegree.org
    035    ----------------------------------------------------------------------------*/
    036
    037    package org.deegree.portal.standard.wms.control;
    038
    039    import java.io.File;
    040    import java.io.IOException;
    041
    042    import javax.servlet.ServletConfig;
    043    import javax.servlet.ServletException;
    044    import javax.servlet.http.HttpServletRequest;
    045    import javax.servlet.http.HttpServletResponse;
    046    import javax.servlet.http.HttpSession;
    047
    048    import org.deegree.portal.context.ViewContext;
    049    import org.deegree.portal.context.WebMapContextFactory;
    050    import org.deegree.portal.standard.wms.Constants;
    051
    052    /**
    053     * This is a <code>RequestDispatcher</code> which creates a event out of a GET or POST requests.
    054     * <P>
    055     *
    056     * Furthermore this class implements
    057     *
    058     * <HR>
    059     * <B>Design Patterns:</B>:<BR>
    060     *
    061     * The following Design Patterns are used:
    062     * <UL>
    063     * <LI> Proxy
    064     * </UL>
    065     *
    066     * @author <a href="mailto:friebe@gmx.net">Torsten Friebe</a>
    067     * @author last edited by: $Author: mays$
    068     *
    069     * @version $Revision: 18195 $ $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
    070     */
    071    public class MapRequestDispatcher extends org.deegree.enterprise.control.RequestDispatcher {
    072
    073        private static final long serialVersionUID = -9110528190805632210L;
    074
    075        private ViewContext vc = null;
    076
    077        /**
    078         * This method initializes the servlet.
    079         *
    080         * @param cfg
    081         *            the servlet configuration
    082         *
    083         * @throws ServletException
    084         *             an exception
    085         */
    086        @Override
    087        public void init( ServletConfig cfg )
    088                                throws ServletException {
    089            super.init( cfg );
    090
    091            String controllerFile = getInitParameter( "Handler.configFile" );
    092            if ( !( new File( controllerFile ).exists() ) ) {
    093                controllerFile = getServletContext().getRealPath( controllerFile );
    094            }
    095            String clientContext = this.getInitParameter( "MapContext.configFile" );
    096            if ( !( new File( clientContext ).exists() ) ) {
    097                clientContext = getServletContext().getRealPath( clientContext );
    098                try {
    099                    File file = new File( clientContext );
    100                    vc = WebMapContextFactory.createViewContext( file.toURL(), null, null );
    101                    appHandler = new MapApplicationHandler( controllerFile, vc );
    102                } catch ( Exception e ) {
    103                    e.printStackTrace();
    104                }
    105            }
    106        }
    107
    108        /**
    109         *
    110         *
    111         * @param request
    112         * @param response
    113         *
    114         * @throws ServletException
    115         * @throws IOException
    116         */
    117        @Override
    118        protected void service( HttpServletRequest request, HttpServletResponse response )
    119                                throws ServletException, IOException {
    120
    121            HttpSession session = request.getSession( true );
    122            session.setAttribute( Constants.DEFAULTMAPCONTEXT, vc );
    123            super.service( request, response );
    124        }
    125
    126    }