| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.axiom.om.impl.common; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import javax.xml.XMLConstants; |
| |
| import org.apache.axiom.om.OMElement; |
| import org.apache.axiom.om.OMNamespace; |
| import org.apache.axiom.util.namespace.AbstractNamespaceContext; |
| |
| class LiveNamespaceContext extends AbstractNamespaceContext { |
| private final OMElement element; |
| |
| public LiveNamespaceContext(OMElement element) { |
| this.element = element; |
| } |
| |
| protected String doGetNamespaceURI(String prefix) { |
| OMNamespace ns = element.findNamespaceURI(prefix); |
| return ns == null ? XMLConstants.NULL_NS_URI : ns.getNamespaceURI(); |
| } |
| |
| protected String doGetPrefix(String namespaceURI) { |
| OMNamespace ns = element.findNamespace(namespaceURI, null); |
| return ns == null ? null : ns.getPrefix(); |
| } |
| |
| protected Iterator doGetPrefixes(String namespaceURI) { |
| List prefixes = new ArrayList(); |
| for (Iterator it = element.getNamespacesInScope(); it.hasNext(); ) { |
| OMNamespace ns = (OMNamespace)it.next(); |
| if (ns.getNamespaceURI().equals(namespaceURI)) { |
| prefixes.add(ns.getPrefix()); |
| } |
| } |
| return prefixes.iterator(); |
| } |
| } |