    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/portal/standard/context/control/ResetContextListener.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    package org.deegree.portal.standard.context.control;
    037
    038    import javax.servlet.http.HttpServletRequest;
    039    import javax.servlet.http.HttpSession;
    040
    041    import org.deegree.enterprise.control.FormEvent;
    042    import org.deegree.framework.log.ILogger;
    043    import org.deegree.framework.log.LoggerFactory;
    044    import org.deegree.framework.xml.XMLFragment;
    045    import org.deegree.i18n.Messages;
    046    import org.deegree.portal.Constants;
    047    import org.deegree.portal.context.ViewContext;
    048    import org.deegree.portal.context.XMLFactory;
    049
    050    /**
    051     * TODO add documentation here
    052     *
    053     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth </a>
    054     * @author last edited by: $Author: apoth $
    055     *
    056     * @version $Revision: 21693 $, $Date: 2010-01-03 15:07:54 +0100 (So, 03. Jan 2010) $
    057     */
    058    public class ResetContextListener extends AbstractContextListener {
    059
    060        private static final ILogger LOG = LoggerFactory.getLogger( ResetContextListener.class );
    061
    062        /*
    063         * (non-Javadoc)
    064         *
    065         * @see org.deegree.enterprise.control.WebListener#actionPerformed(org.deegree.enterprise.control.FormEvent)
    066         */
    067        @Override
    068        public void actionPerformed( FormEvent event ) {
    069
    070            String newHtml;
    071            try {
    072                newHtml = doTransformContext();
    073            } catch ( Exception e ) {
    074                LOG.logError( e.getMessage(), e );
    075                gotoErrorPage( Messages.getMessage( "IGEO_STD_CNTXT_ERROR_RESET_CNTXT", e.getMessage() ) );
    076
    077                return;
    078            }
    079            // get the servlet path using the session
    080            HttpSession session = ( (HttpServletRequest) this.getRequest() ).getSession();
    081            session.setAttribute( ContextSwitchListener.NEW_CONTEXT_HTML, newHtml );
    082
    083
    084        }
    085
    086        /**
    087         * Transforms the context into html using <code>xsl</code>.
    088         *
    089         * @param xsl
    090         *            the transformation xml
    091         * @return the transformed context
    092         * @throws Exception
    093         */
    094        protected String doTransformContext( )
    095                                throws Exception {
    096
    097            HttpSession session = ( (HttpServletRequest) getRequest() ).getSession( true );
    098            ViewContext vc = (ViewContext) session.getAttribute( Constants.CURRENTMAPCONTEXT );
    099            XMLFragment xml = XMLFactory.export( vc );
    100
    101            return transformToHtmlMapContext( xml, vc.getGeneral().getExtension().getXslt().toURI().toASCIIString() );
    102        }
    103    }