001 /* 002 * JBoss, Home of Professional Open Source. 003 * Copyright 2008, Red Hat Middleware LLC, and individual contributors 004 * as indicated by the @author tags. See the copyright.txt file in the 005 * distribution for a full listing of individual contributors. 006 * 007 * This is free software; you can redistribute it and/or modify it 008 * under the terms of the GNU Lesser General Public License as 009 * published by the Free Software Foundation; either version 2.1 of 010 * the License, or (at your option) any later version. 011 * 012 * This software is distributed in the hope that it will be useful, 013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 015 * Lesser General Public License for more details. 016 * 017 * You should have received a copy of the GNU Lesser General Public 018 * License along with this software; if not, write to the Free 019 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 020 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 021 */ 022 package org.jboss.dna.common.xml; 023 024 import java.util.HashMap; 025 import java.util.Iterator; 026 import java.util.Map; 027 import javax.xml.namespace.NamespaceContext; 028 029 /** 030 * @author Randall Hauch 031 */ 032 public class SimpleNamespaceContext implements NamespaceContext { 033 034 private final Map<String, String> prefixToNamespace = new HashMap<String, String>(); 035 036 /** 037 * {@inheritDoc} 038 */ 039 public String getNamespaceURI( String prefix ) { 040 return this.prefixToNamespace.get(prefix); 041 } 042 043 /** 044 * {@inheritDoc} 045 */ 046 public String getPrefix( String namespaceURI ) { 047 for (Map.Entry<String, String> entry : this.prefixToNamespace.entrySet()) { 048 if (entry.getValue().equals(namespaceURI)) return entry.getKey(); 049 } 050 return null; 051 } 052 053 public SimpleNamespaceContext setNamespace( String prefix, 054 String namespaceUri ) { 055 this.prefixToNamespace.put(prefix, namespaceUri); 056 return this; 057 } 058 059 /** 060 * {@inheritDoc} 061 */ 062 public Iterator<String> getPrefixes( String namespaceURI ) { 063 return this.prefixToNamespace.keySet().iterator(); 064 } 065 066 }