    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/ogcwebservices/wass/common/URN.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    /**
    040     * Encapsulates a Uniform Resource Name (URN) which encodes an authentication method according to
    041     * the GDI NRW access control specification.
    042     *
    043     * @author <a href="mailto:schmitz@lat-lon.de">Andreas Schmitz</a>
    044     * @author last edited by: $Author: mschneider $
    045     *
    046     * @version 2.0, $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
    047     *
    048     * @since 2.0
    049     */
    050    public class URN {
    051
    052        private String urn;
    053
    054        /**
    055         * Creates new one from a String.
    056         *
    057         * @param urn
    058         *            the string
    059         */
    060        public URN( String urn ) {
    061            this.urn = urn;
    062        }
    063
    064        /**
    065         * Returns the last part of the name, or null, if it is not a wellformed GDI NRW authentication.
    066         * method URN.
    067         *
    068         * @return the name, or null
    069         */
    070        public String getAuthenticationMethod() {
    071            if ( !isWellformedGDINRW() )
    072                return null;
    073            return getLastName();
    074        }
    075
    076        /**
    077         * Returns the last part of the name, or null, if it is not a URN.
    078         *
    079         * @return the last part of this URN
    080         */
    081        public String getLastName() {
    082            if ( urn == null )
    083                return null;
    084            if ( !urn.startsWith( "urn:" ) )
    085                return null;
    086            return urn.substring( urn.lastIndexOf( ':' ) + 1 );
    087        }
    088
    089        /**
    090         * Returns, whether this is a wellformed GDI NRW authentication method URN.
    091         *
    092         * @return true, if it is
    093         */
    094        public boolean isWellformedGDINRW() {
    095            if ( urn == null )
    096                return false;
    097            String lastName = getLastName();
    098            if ( urn.startsWith( "urn:x-gdi-nrw:authnMethod:1.0:" ) )
    099                if ( lastName.equalsIgnoreCase( "password" ) || lastName.equalsIgnoreCase( "was" )
    100                     || lastName.equalsIgnoreCase( "session" )
    101                     || lastName.equalsIgnoreCase( "anonymous" ) )
    102                    return true;
    103            return false;
    104        }
    105
    106        /**
    107         * @param other
    108         * @return true if other equals this URN
    109         */
    110        public boolean equals ( URN other ){
    111            if( other == null )
    112                return false;
    113            if( !other.isWellformedGDINRW() || !this.isWellformedGDINRW() )
    114                return false;
    115            return other.getLastName().equals( this.getLastName() );
    116        }
    117
    118        @Override
    119        public String toString() {
    120            return urn;
    121        }
    122
    123    }