    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/ogcwebservices/wass/was/WAService.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.was;
    038
    039    import static org.deegree.i18n.Messages.get;
    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.framework.trigger.TriggerProvider;
    046    import org.deegree.ogcwebservices.OGCWebService;
    047    import org.deegree.ogcwebservices.OGCWebServiceException;
    048    import org.deegree.ogcwebservices.OGCWebServiceRequest;
    049    import org.deegree.ogcwebservices.getcapabilities.OGCCapabilities;
    050    import org.deegree.ogcwebservices.wass.common.CloseSession;
    051    import org.deegree.ogcwebservices.wass.common.CloseSessionHandler;
    052    import org.deegree.ogcwebservices.wass.common.GetSession;
    053    import org.deegree.ogcwebservices.wass.common.GetSessionAnonymousHandler;
    054    import org.deegree.ogcwebservices.wass.common.GetSessionDispatcher;
    055    import org.deegree.ogcwebservices.wass.common.GetSessionHandler;
    056    import org.deegree.ogcwebservices.wass.common.GetSessionPasswordHandler;
    057    import org.deegree.ogcwebservices.wass.common.GetSessionWASHandler;
    058    import org.deegree.ogcwebservices.wass.common.Operation_1_0;
    059    import org.deegree.ogcwebservices.wass.common.WASSSecurityManager;
    060    import org.deegree.ogcwebservices.wass.was.configuration.WASConfiguration;
    061    import org.deegree.ogcwebservices.wass.was.configuration.WASDeegreeParams;
    062    import org.deegree.ogcwebservices.wass.was.operation.DescribeUser;
    063    import org.deegree.ogcwebservices.wass.was.operation.DescribeUserHandler;
    064    import org.deegree.ogcwebservices.wass.was.operation.WASGetCapabilities;
    065    import org.deegree.security.GeneralSecurityException;
    066    import org.deegree.security.session.SessionStatusException;
    067
    068    /**
    069     * This is the main WAService class that implements a WAS according to the GDI NRW spec V1.0.
    070     *
    071     * @author <a href="mailto:schmitz@lat-lon.de">Andreas Schmitz</a>
    072     * @author last edited by: $Author: mschneider $
    073     *
    074     * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
    075     */
    076    public class WAService implements OGCWebService {
    077
    078        private WASConfiguration configuration = null;
    079
    080        private static final ILogger LOG = LoggerFactory.getLogger( WAService.class );
    081
    082        private static final TriggerProvider TP = TriggerProvider.create( WAService.class );
    083
    084        private GetSessionHandler getSessionHandler = null;
    085
    086        private CloseSessionHandler closeSessionHandler = null;
    087
    088        private DescribeUserHandler describeUserHandler = null;
    089
    090        /**
    091         * Creates a new service according to the given configuration.
    092         *
    093         * @param configuration
    094         *            the config
    095         * @throws OGCWebServiceException
    096         */
    097        public WAService( WASConfiguration configuration ) throws OGCWebServiceException {
    098
    099            this.configuration = configuration;
    100
    101            // setup GetSession/CloseSession handler(s)
    102            WASDeegreeParams dgParams = configuration.getDeegreeParams();
    103            if ( configuration.isSessionAuthenticationSupported() ) {
    104                for ( Operation_1_0 operation : configuration.getOperationsMetadata().getAllOperations() ) {
    105                    if ( "GetSession".equals( operation.getName() ) ) {
    106                        try {
    107                            ArrayList<GetSessionHandler> handlers = new ArrayList<GetSessionHandler>( 4 );
    108                            int lifetime = dgParams.getSessionLifetime();
    109                            if ( configuration.isPasswordAuthenticationSupported()
    110                                 && dgParams.getDatabaseConnection() != null ) {
    111                                WASSSecurityManager secManager = new WASSSecurityManager( dgParams.getDatabaseConnection() );
    112                                handlers.add( new GetSessionPasswordHandler( secManager, lifetime ) );
    113                            }
    114                            if ( configuration.isPasswordAuthenticationSupported() && dgParams.getWASAddress() != null ) {
    115                                handlers.add( new GetSessionWASHandler( dgParams.getWASAddress(), lifetime ) );
    116                            }
    117                            if ( configuration.isAnonymousAuthenticationSupported() ) {
    118                                handlers.add( new GetSessionAnonymousHandler( lifetime ) );
    119                            }
    120                            if ( handlers.size() == 0 )
    121                                throw new OGCWebServiceException( get( "WASS_ERROR_NO_AUTHMETHOD_HANDLER", "WAS" ) );
    122                            getSessionHandler = new GetSessionDispatcher( handlers );
    123
    124                        } catch ( GeneralSecurityException e ) {
    125                            LOG.logError( e.getLocalizedMessage(), e );
    126                            throw new OGCWebServiceException( e.getLocalizedMessage() );
    127                        }
    128                    } else if ( "CloseSession".equals( operation.getName() ) ) {
    129                        closeSessionHandler = new CloseSessionHandler();
    130                    } else if ( "DescribeUser".equals( operation.getName() ) ) {
    131                        try {
    132                            WASSSecurityManager secManager = new WASSSecurityManager( dgParams.getDatabaseConnection() );
    133                            describeUserHandler = new DescribeUserHandler( secManager );
    134                        } catch ( GeneralSecurityException e ) {
    135                            LOG.logError( e.getLocalizedMessage(), e );
    136                            throw new OGCWebServiceException( e.getLocalizedMessage() );
    137                        }
    138                    }
    139                }
    140            }
    141
    142        }
    143
    144        /*
    145         * (non-Javadoc)
    146         *
    147         * @see org.deegree.ogcwebservices.OGCWebService#getCapabilities()
    148         */
    149        public OGCCapabilities getCapabilities() {
    150            return configuration;
    151        }
    152
    153        /*
    154         * (non-Javadoc)
    155         *
    156         * @see org.deegree.ogcwebservices.OGCWebService#doService(org.deegree.ogcwebservices.OGCWebServiceRequest)
    157         */
    158        public Object doService( OGCWebServiceRequest request )
    159                                throws OGCWebServiceException {
    160
    161            request = (OGCWebServiceRequest) TP.doPreTrigger( this, request )[0];
    162
    163            Object response = null;
    164
    165            // TODO exception handling: throw e after each different occasion with descriptive msg
    166            try {
    167                if ( request instanceof WASGetCapabilities ) {
    168                    response = configuration;
    169                } else if ( ( getSessionHandler != null ) && ( request instanceof GetSession ) ) {
    170                    response = getSessionHandler.handleRequest( (GetSession) request );
    171                } else if ( ( closeSessionHandler != null ) && ( request instanceof CloseSession ) ) {
    172                    closeSessionHandler.handleRequest( (CloseSession) request );
    173                } else if ( ( describeUserHandler != null ) && ( request instanceof DescribeUser ) ) {
    174                    response = describeUserHandler.handleRequest( (DescribeUser) request );
    175                } else {
    176                    throw new OGCWebServiceException( get( "WASS_ERROR_UNKNOWN_REQUEST",
    177                                                           new Object[] { getClass().getName(),
    178                                                                         request.getClass().getName() } ) );
    179                }
    180            } catch ( SessionStatusException e ) {
    181                LOG.logError( e.getLocalizedMessage(), e );
    182                // TODO Check if this particular message is needed for the GDI NRW spec V1.0.
    183                // Otherwise delete it and use e.getMessage() instead.
    184                // response = new OGCWebServiceException( Messages.getMessage(
    185                // "WASS_ERROR_INVALID_SESSION", "WAService" ) );
    186                response = new OGCWebServiceException( e.getLocalizedMessage() );
    187            } catch ( GeneralSecurityException e ) {
    188                LOG.logError( e.getLocalizedMessage(), e );
    189                // TODO Check if this particular message is needed for the GDI NRW spec V1.0.
    190                // Otherwise delete it and use e.getMessage() instead.
    191                // throw new OGCWebServiceException( Messages.getMessage(
    192                // "WASS_ERROR_SECURITY_SYSTEM", "WAService" ) );
    193                throw new OGCWebServiceException( e.getLocalizedMessage() );
    194            }
    195
    196            return TP.doPostTrigger( this, response )[0];
    197        }
    198
    199    }