001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_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: mschneider $
055 *
056 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
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
071
072 String xslFilename = "file://" + getHomePath() + ContextSwitchListener.DEFAULT_CTXT2HTML;
073 String newHtml;
074 try {
075 newHtml = doTransformContext( xslFilename );
076 } catch ( Exception e ) {
077 LOG.logError( e.getMessage(), e );
078 gotoErrorPage( Messages.getMessage( "IGEO_STD_CNTXT_ERROR_RESET_CNTXT", e.getMessage() ) );
079
080 return;
081 }
082 // get the servlet path using the session
083 HttpSession session = ( (HttpServletRequest) this.getRequest() ).getSession();
084 session.setAttribute( ContextSwitchListener.NEW_CONTEXT_HTML, newHtml );
085
086
087 }
088
089 /**
090 * Transforms the context into html using <code>xsl</code>.
091 *
092 * @param xsl
093 * the transformation xml
094 * @return the transformed context
095 * @throws Exception
096 */
097 protected String doTransformContext( String xsl )
098 throws Exception {
099
100 HttpSession session = ( (HttpServletRequest) getRequest() ).getSession( true );
101 ViewContext vc = (ViewContext) session.getAttribute( Constants.CURRENTMAPCONTEXT );
102 XMLFragment xml = XMLFactory.export( vc );
103
104 return transformToHtmlMapContext( xml, xsl );
105 }
106 }