001 /* 002 * JBoss DNA (http://www.jboss.org/dna) 003 * See the COPYRIGHT.txt file distributed with this work for information 004 * regarding copyright ownership. Some portions may be licensed 005 * to Red Hat, Inc. under one or more contributor license agreements. 006 * See the AUTHORS.txt file in the distribution for a full listing of 007 * individual contributors. 008 * 009 * JBoss DNA is free software. Unless otherwise indicated, all code in JBoss DNA 010 * is licensed to you under the terms of the GNU Lesser General Public License as 011 * published by the Free Software Foundation; either version 2.1 of 012 * the License, or (at your option) any later version. 013 * 014 * JBoss DNA is distributed in the hope that it will be useful, 015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 017 * Lesser General Public License for more details. 018 * 019 * You should have received a copy of the GNU Lesser General Public 020 * License along with this software; if not, write to the Free 021 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 022 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 023 */ 024 package org.jboss.dna.common.xml; 025 026 import java.util.HashMap; 027 import java.util.Iterator; 028 import java.util.Map; 029 import javax.xml.namespace.NamespaceContext; 030 031 /** 032 * @author Randall Hauch 033 */ 034 public class SimpleNamespaceContext implements NamespaceContext { 035 036 private final Map<String, String> prefixToNamespace = new HashMap<String, String>(); 037 038 /** 039 * {@inheritDoc} 040 */ 041 public String getNamespaceURI( String prefix ) { 042 return this.prefixToNamespace.get(prefix); 043 } 044 045 /** 046 * {@inheritDoc} 047 */ 048 public String getPrefix( String namespaceURI ) { 049 for (Map.Entry<String, String> entry : this.prefixToNamespace.entrySet()) { 050 if (entry.getValue().equals(namespaceURI)) return entry.getKey(); 051 } 052 return null; 053 } 054 055 public SimpleNamespaceContext setNamespace( String prefix, 056 String namespaceUri ) { 057 this.prefixToNamespace.put(prefix, namespaceUri); 058 return this; 059 } 060 061 /** 062 * {@inheritDoc} 063 */ 064 public Iterator<String> getPrefixes( String namespaceURI ) { 065 return this.prefixToNamespace.keySet().iterator(); 066 } 067 068 }