| /* |
| * 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.ws.commons.schema.utils; |
| |
| import org.apache.ws.commons.schema.constants.Constants; |
| import org.w3c.dom.NamedNodeMap; |
| import org.w3c.dom.Node; |
| |
| /** |
| * Searches for namespace prefix declarations. |
| */ |
| public abstract class PrefixCollector { |
| /** |
| * Records a single namespace prefix declaration. |
| */ |
| protected abstract void declare(String pPrefix, String pNamespaceURI); |
| |
| /** |
| * Searches for namespace prefix declarations in the given node. For any prefix declaration, it invokes |
| * {@link #declare(String, String)}. This method doesn't work recursively: The parent nodes prefix |
| * declarations are ignored. |
| */ |
| public void searchLocalPrefixDeclarations(Node pNode) { |
| if (pNode.getNodeType() == Node.ELEMENT_NODE) { |
| NamedNodeMap map = pNode.getAttributes(); |
| for (int i = 0; i < map.getLength(); i++) { |
| Node attr = map.item(i); |
| final String uri = attr.getNamespaceURI(); |
| if (Constants.XMLNS_ATTRIBUTE_NS_URI.equals(uri)) { |
| String localName = attr.getLocalName(); |
| String prefix = Constants.XMLNS_ATTRIBUTE.equals(localName) |
| ? Constants.DEFAULT_NS_PREFIX : localName; |
| declare(prefix, attr.getNodeValue()); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Searches for namespace prefix declarations in the given node. For any prefix declaration, it invokes |
| * {@link #declare(String, String)}. This method works recursively: The parent nodes prefix declarations |
| * are collected before the current nodes. |
| */ |
| public void searchAllPrefixDeclarations(Node pNode) { |
| Node parent = pNode.getParentNode(); |
| if (parent != null) { |
| searchAllPrefixDeclarations(parent); |
| } |
| searchLocalPrefixDeclarations(pNode); |
| } |
| } |