001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/ogcwebservices/wass/common/URN.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2008 by:
006 EXSE, Department of Geography, University of Bonn
007 http://www.giub.uni-bonn.de/deegree/
008 lat/lon GmbH
009 http://www.lat-lon.de
010
011 This library is free software; you can redistribute it and/or
012 modify it under the terms of the GNU Lesser General Public
013 License as published by the Free Software Foundation; either
014 version 2.1 of the License, or (at your option) any later version.
015
016 This library is distributed in the hope that it will be useful,
017 but WITHOUT ANY WARRANTY; without even the implied warranty of
018 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
019 Lesser General Public License for more details.
020
021 You should have received a copy of the GNU Lesser General Public
022 License along with this library; if not, write to the Free Software
023 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
024
025 Contact:
026
027 Andreas Poth
028 lat/lon GmbH
029 Aennchenstr. 19
030 53115 Bonn
031 Germany
032 E-Mail: poth@lat-lon.de
033
034 Prof. Dr. Klaus Greve
035 Department of Geography
036 University of Bonn
037 Meckenheimer Allee 166
038 53115 Bonn
039 Germany
040 E-Mail: greve@giub.uni-bonn.de
041
042
043 ---------------------------------------------------------------------------*/
044
045 package org.deegree.ogcwebservices.wass.common;
046
047 /**
048 * Encapsulates a Uniform Resource Name (URN) which encodes an authentication method according to
049 * the GDI NRW access control specification.
050 *
051 * @author <a href="mailto:schmitz@lat-lon.de">Andreas Schmitz</a>
052 * @author last edited by: $Author: apoth $
053 *
054 * @version 2.0, $Revision: 9345 $, $Date: 2007-12-27 17:22:25 +0100 (Do, 27 Dez 2007) $
055 *
056 * @since 2.0
057 */
058 public class URN {
059
060 private String urn;
061
062 /**
063 * Creates new one from a String.
064 *
065 * @param urn
066 * the string
067 */
068 public URN( String urn ) {
069 this.urn = urn;
070 }
071
072 /**
073 * Returns the last part of the name, or null, if it is not a wellformed GDI NRW authentication.
074 * method URN.
075 *
076 * @return the name, or null
077 */
078 public String getAuthenticationMethod() {
079 if ( !isWellformedGDINRW() )
080 return null;
081 return getLastName();
082 }
083
084 /**
085 * Returns the last part of the name, or null, if it is not a URN.
086 *
087 * @return the last part of this URN
088 */
089 public String getLastName() {
090 if ( urn == null )
091 return null;
092 if ( !urn.startsWith( "urn:" ) )
093 return null;
094 return urn.substring( urn.lastIndexOf( ':' ) + 1 );
095 }
096
097 /**
098 * Returns, whether this is a wellformed GDI NRW authentication method URN.
099 *
100 * @return true, if it is
101 */
102 public boolean isWellformedGDINRW() {
103 if ( urn == null )
104 return false;
105 String lastName = getLastName();
106 if ( urn.startsWith( "urn:x-gdi-nrw:authnMethod:1.0:" ) )
107 if ( lastName.equalsIgnoreCase( "password" ) || lastName.equalsIgnoreCase( "was" )
108 || lastName.equalsIgnoreCase( "session" )
109 || lastName.equalsIgnoreCase( "anonymous" ) )
110 return true;
111 return false;
112 }
113
114 /**
115 * @param other
116 * @return true if other equals this URN
117 */
118 public boolean equals ( URN other ){
119 if( other == null )
120 return false;
121 if( !other.isWellformedGDINRW() || !this.isWellformedGDINRW() )
122 return false;
123 return other.getLastName().equals( this.getLastName() );
124 }
125
126 @Override
127 public String toString() {
128 return urn;
129 }
130
131 }