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