    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/enterprise/servlet/TolerantGetFeatureInfoFilter.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.enterprise.servlet;
    038
    039    import java.io.IOException;
    040    import java.util.HashMap;
    041    import java.util.Map;
    042
    043    import javax.servlet.Filter;
    044    import javax.servlet.FilterChain;
    045    import javax.servlet.FilterConfig;
    046    import javax.servlet.ServletException;
    047    import javax.servlet.ServletRequest;
    048    import javax.servlet.ServletResponse;
    049    import javax.servlet.http.HttpServletRequest;
    050    import javax.servlet.http.HttpServletRequestWrapper;
    051
    052    /**
    053     * <code>TolerantGetFeatureInfoFilter</code>
    054     *
    055     * @author <a href="mailto:schmitz@lat-lon.de">Andreas Schmitz</a>
    056     * @author last edited by: $Author: mschneider $
    057     *
    058     * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
    059     * @deprecated use the TolerantOGCRequestFilter instead
    060     */
    061    @Deprecated
    062    public class TolerantGetFeatureInfoFilter implements Filter {
    063
    064        public void destroy() {
    065            // nothing to destroy
    066        }
    067
    068        public void doFilter( ServletRequest request, ServletResponse response, FilterChain chain )
    069                                throws IOException, ServletException {
    070            Map<?, ?> map = request.getParameterMap();
    071            final Map<String, String[]> newMap = new HashMap<String, String[]>();
    072            boolean format = false, isgfi = false;
    073
    074            for ( Object keyO : map.keySet() ) {
    075                String key = (String) keyO;
    076                if ( key.equalsIgnoreCase( "format" ) ) {
    077                    format = true;
    078                }
    079
    080                if ( key.equalsIgnoreCase( "request" ) ) {
    081                    String[] val = (String[]) map.get( key );
    082                    if ( val != null && val.length > 0 && val[0].equalsIgnoreCase( "getfeatureinfo" ) ) {
    083                        isgfi = true;
    084                    }
    085                }
    086
    087                newMap.put( key, (String[]) map.get( key ) );
    088            }
    089
    090            if ( !isgfi ) {
    091                chain.doFilter( request, response );
    092            }
    093
    094            if ( !format ) {
    095                newMap.put( "format", new String[] { "image/png" } );
    096            }
    097
    098            chain.doFilter( new HttpServletRequestWrapper( (HttpServletRequest) request ) {
    099                @Override
    100                public Map<?, ?> getParameterMap() {
    101                    return newMap;
    102                }
    103            }, response );
    104        }
    105
    106        public void init( FilterConfig conf )
    107                                throws ServletException {
    108            // no configuration is required
    109        }
    110
    111    }