001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/tags/2.1/src/org/deegree/framework/xml/NamespaceContext.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2006 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 Aennchenstraße 19
030 53177 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 package org.deegree.framework.xml;
044
045 import java.net.URI;
046 import java.util.HashMap;
047 import java.util.Map;
048 import java.util.Set;
049
050 import org.deegree.ogcbase.CommonNamespaces;
051
052 /**
053 * Implementation of Jaxen's (http://jaxen.codehaus.org) <code>NamespaceContext</code> interface.
054 * <p>
055 * NOTE: This should be used everywhere inside deegree, don't use
056 * <code>org.jaxen.SimpleNamespaceContext</code> -- this prevents unnecessary binding to Jaxen.
057 *
058 * @author <a href="mailto:schneider@lat-lon.de">Markus Schneider </a>
059 *
060 * @author last edited by: $Author: apoth $
061 *
062 * @version 2.0, $Revision: 6615 $, $Date: 2007-04-17 14:10:53 +0200 (Di, 17 Apr 2007) $
063 *
064 * @since 2.0
065 */
066 public class NamespaceContext implements org.jaxen.NamespaceContext {
067
068 // keys: prefices (String), values: namespaces (URI)
069 private Map<String,URI> namespaceMap = new HashMap<String,URI>();
070
071 /**
072 * Creates a new instance of <code>NamespaceContext</code> with only the prefix 'xmlns:' being
073 * bound.
074 */
075 public NamespaceContext() {
076 this.namespaceMap.put( CommonNamespaces.XMLNS_PREFIX, CommonNamespaces.XMLNS );
077 }
078
079 public Map<String, URI> getNamespaceMap() {
080 return this.namespaceMap;
081 }
082
083 /**
084 * registers a new prefix with an assigned namespace URI
085 * @param prefix
086 * @param namespace
087 */
088 public void addNamespace( String prefix, URI namespace ) {
089 this.namespaceMap.put( prefix, namespace );
090 }
091
092 /**
093 * registeres all prexifes and assigned namespaces from another
094 * NamespaceContext. If a prefix already exists in this NamespaceContext
095 * it will be ignored.
096 * @param nsc
097 */
098 public void addAll( NamespaceContext nsc ) {
099 Map<String,URI> map = nsc.getNamespaceMap();
100 Set<String> keys = map.keySet();
101 for ( String key : keys ) {
102 if ( this.namespaceMap.get( key ) == null ) {
103 this.namespaceMap.put( key, map.get( key ) );
104 }
105 }
106 }
107
108 public String translateNamespacePrefixToUri( String prefix ) {
109 URI namespaceURI = this.namespaceMap.get( prefix );
110 return namespaceURI == null ? null : namespaceURI.toString();
111 }
112
113 public URI getURI( String prefix ) {
114 return this.namespaceMap.get( prefix );
115 }
116
117 public String toString() {
118 return namespaceMap.toString();
119 }
120 }