001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_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 }