19f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/* 29f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Licensed to the Apache Software Foundation (ASF) under one 39f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * or more contributor license agreements. See the NOTICE file 49f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * distributed with this work for additional information 59f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * regarding copyright ownership. The ASF licenses this file 69f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * to you under the Apache License, Version 2.0 (the "License"); 79f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * you may not use this file except in compliance with the License. 89f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * You may obtain a copy of the License at 99f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * http://www.apache.org/licenses/LICENSE-2.0 119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Unless required by applicable law or agreed to in writing, software 139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * distributed under the License is distributed on an "AS IS" BASIS, 149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * See the License for the specific language governing permissions and 169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * limitations under the License. 179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson// $Id: JAXPPrefixResolver.java 468655 2006-10-28 07:12:06Z minchau $ 199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonpackage org.apache.xpath.jaxp; 219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.w3c.dom.Node; 239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.w3c.dom.NamedNodeMap; 249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport org.apache.xml.utils.PrefixResolver; 259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport javax.xml.namespace.NamespaceContext; 279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/** 299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <meta name="usage" content="general"/> 309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * This class implements a Default PrefixResolver which 319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * can be used to perform prefix-to-namespace lookup 329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * for the XPath object. 339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * This class delegates the resolution to the passed NamespaceContext 349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonpublic class JAXPPrefixResolver implements PrefixResolver 369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson{ 379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private NamespaceContext namespaceContext; 399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public JAXPPrefixResolver ( NamespaceContext nsContext ) { 429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson this.namespaceContext = nsContext; 439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public String getNamespaceForPrefix( String prefix ) { 479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return namespaceContext.getNamespaceURI( prefix ); 489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Return the base identifier. 529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return null 549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public String getBaseIdentifier() { 569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return null; 579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see PrefixResolver#handlesNullPrefixes() 619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public boolean handlesNullPrefixes() { 639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return false; 649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * The URI for the XML namespace. 699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * (Duplicate of that found in org.apache.xpath.XPathContext). 709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public static final String S_XMLNAMESPACEURI = 739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson "http://www.w3.org/XML/1998/namespace"; 749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Given a prefix and a Context Node, get the corresponding namespace. 789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Warning: This will not work correctly if namespaceContext 799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * is an attribute node. 809f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param prefix Prefix to resolve. 819f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param namespaceContext Node from which to start searching for a 829f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * xmlns attribute that binds a prefix to a namespace. 839f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return Namespace that prefix resolves to, or null if prefix 849f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * is not bound. 859f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 869f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public String getNamespaceForPrefix(String prefix, 879f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson org.w3c.dom.Node namespaceContext) { 889f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Node parent = namespaceContext; 899f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String namespace = null; 909f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 919f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (prefix.equals("xml")) { 929f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson namespace = S_XMLNAMESPACEURI; 939f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } else { 949f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson int type; 959f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 969f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson while ((null != parent) && (null == namespace) 979f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson && (((type = parent.getNodeType()) == Node.ELEMENT_NODE) 989f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson || (type == Node.ENTITY_REFERENCE_NODE))) { 999f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1009f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (type == Node.ELEMENT_NODE) { 1019f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson NamedNodeMap nnm = parent.getAttributes(); 1029f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1039f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson for (int i = 0; i < nnm.getLength(); i++) { 1049f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Node attr = nnm.item(i); 1059f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String aname = attr.getNodeName(); 1069f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson boolean isPrefix = aname.startsWith("xmlns:"); 1079f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1089f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (isPrefix || aname.equals("xmlns")) { 1099f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson int index = aname.indexOf(':'); 1109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String p =isPrefix ?aname.substring(index + 1) :""; 1119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (p.equals(prefix)) { 1139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson namespace = attr.getNodeValue(); 1149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson break; 1159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson parent = parent.getParentNode(); 1219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return namespace; 1249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson} 1279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 128