001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/ogcwebservices/wass/common/GetSessionDispatcher.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.ogcwebservices.wass.common;
038    
039    import static org.deegree.i18n.Messages.getMessage;
040    
041    import java.util.ArrayList;
042    
043    import org.deegree.framework.log.ILogger;
044    import org.deegree.framework.log.LoggerFactory;
045    import org.deegree.security.GeneralSecurityException;
046    import org.deegree.security.session.SessionStatusException;
047    
048    /**
049     * This class handles/dispatches all GetSession requests.
050     *
051     * @author <a href="mailto:schmitz@lat-lon.de">Andreas Schmitz</a>
052     * @author last edited by: $Author: mschneider $
053     *
054     * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
055     */
056    
057    public class GetSessionDispatcher implements GetSessionHandler {
058    
059        private static final ILogger LOG = LoggerFactory.getLogger( GetSessionDispatcher.class );
060    
061        private ArrayList<GetSessionHandler> handlers;
062    
063        /**
064         * Constructs a new handler ready to process your requests.
065         *
066         * @param getSessionHandlers
067         */
068        public GetSessionDispatcher( ArrayList<GetSessionHandler> getSessionHandlers ) {
069            this.handlers = getSessionHandlers;
070        }
071    
072        /**
073         * Returns a new session ID.
074         *
075         * @param request
076         *            the request on which to base the authentication
077         * @return the new session ID or null, if no authentication took place
078         * @throws SessionStatusException
079         * @throws GeneralSecurityException
080         */
081        public String handleRequest( GetSession request )
082                                throws SessionStatusException, GeneralSecurityException {
083            String res = null;
084    
085            for ( GetSessionHandler handler : handlers ) {
086                res = handler.handleRequest( request );
087                if ( res != null ) // The handler handled the request
088                    return res;
089            }
090    
091            // did not find a handler, just return null and log a warning
092            StringBuffer msg = new StringBuffer( getMessage( "WASS_ERROR_NO_AUTHMETHOD_HANDLER" ) );
093            msg.append( request.getAuthenticationData().getAuthenticationMethod() );
094            LOG.logWarning( msg.toString() );
095    
096            return res;
097        }
098    
099    }