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<FONT color="green">001</FONT> /*<a name="line.1"></a>
<FONT color="green">002</FONT> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
<FONT color="green">003</FONT> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
<FONT color="green">004</FONT> * distributed with this work for additional information<a name="line.4"></a>
<FONT color="green">005</FONT> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
<FONT color="green">006</FONT> * to you under the Apache License, Version 2.0 (the "License");<a name="line.6"></a>
<FONT color="green">007</FONT> * you may not use this file except in compliance with the License.<a name="line.7"></a>
<FONT color="green">008</FONT> * You may obtain a copy of the License at<a name="line.8"></a>
<FONT color="green">009</FONT> *<a name="line.9"></a>
<FONT color="green">010</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
<FONT color="green">011</FONT> *<a name="line.11"></a>
<FONT color="green">012</FONT> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a>
<FONT color="green">013</FONT> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a>
<FONT color="green">014</FONT> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a>
<FONT color="green">015</FONT> * See the License for the specific language governing permissions and<a name="line.15"></a>
<FONT color="green">016</FONT> * limitations under the License.<a name="line.16"></a>
<FONT color="green">017</FONT> */<a name="line.17"></a>
<FONT color="green">018</FONT> // $Id: JAXPPrefixResolver.java 468655 2006-10-28 07:12:06Z minchau $<a name="line.18"></a>
<FONT color="green">019</FONT> <a name="line.19"></a>
<FONT color="green">020</FONT> package org.apache.xpath.jaxp;<a name="line.20"></a>
<FONT color="green">021</FONT> <a name="line.21"></a>
<FONT color="green">022</FONT> import org.w3c.dom.Node;<a name="line.22"></a>
<FONT color="green">023</FONT> import org.w3c.dom.NamedNodeMap;<a name="line.23"></a>
<FONT color="green">024</FONT> import org.apache.xml.utils.PrefixResolver;<a name="line.24"></a>
<FONT color="green">025</FONT> <a name="line.25"></a>
<FONT color="green">026</FONT> import javax.xml.namespace.NamespaceContext;<a name="line.26"></a>
<FONT color="green">027</FONT> <a name="line.27"></a>
<FONT color="green">028</FONT> /**<a name="line.28"></a>
<FONT color="green">029</FONT> * &lt;meta name="usage" content="general"/&gt;<a name="line.29"></a>
<FONT color="green">030</FONT> * This class implements a Default PrefixResolver which<a name="line.30"></a>
<FONT color="green">031</FONT> * can be used to perform prefix-to-namespace lookup<a name="line.31"></a>
<FONT color="green">032</FONT> * for the XPath object.<a name="line.32"></a>
<FONT color="green">033</FONT> * This class delegates the resolution to the passed NamespaceContext<a name="line.33"></a>
<FONT color="green">034</FONT> */<a name="line.34"></a>
<FONT color="green">035</FONT> public class JAXPPrefixResolver implements PrefixResolver<a name="line.35"></a>
<FONT color="green">036</FONT> {<a name="line.36"></a>
<FONT color="green">037</FONT> <a name="line.37"></a>
<FONT color="green">038</FONT> private NamespaceContext namespaceContext;<a name="line.38"></a>
<FONT color="green">039</FONT> <a name="line.39"></a>
<FONT color="green">040</FONT> <a name="line.40"></a>
<FONT color="green">041</FONT> public JAXPPrefixResolver ( NamespaceContext nsContext ) {<a name="line.41"></a>
<FONT color="green">042</FONT> this.namespaceContext = nsContext;<a name="line.42"></a>
<FONT color="green">043</FONT> } <a name="line.43"></a>
<FONT color="green">044</FONT> <a name="line.44"></a>
<FONT color="green">045</FONT> <a name="line.45"></a>
<FONT color="green">046</FONT> public String getNamespaceForPrefix( String prefix ) {<a name="line.46"></a>
<FONT color="green">047</FONT> return namespaceContext.getNamespaceURI( prefix );<a name="line.47"></a>
<FONT color="green">048</FONT> }<a name="line.48"></a>
<FONT color="green">049</FONT> <a name="line.49"></a>
<FONT color="green">050</FONT> /**<a name="line.50"></a>
<FONT color="green">051</FONT> * Return the base identifier.<a name="line.51"></a>
<FONT color="green">052</FONT> *<a name="line.52"></a>
<FONT color="green">053</FONT> * @return null<a name="line.53"></a>
<FONT color="green">054</FONT> */<a name="line.54"></a>
<FONT color="green">055</FONT> public String getBaseIdentifier() {<a name="line.55"></a>
<FONT color="green">056</FONT> return null;<a name="line.56"></a>
<FONT color="green">057</FONT> }<a name="line.57"></a>
<FONT color="green">058</FONT> <a name="line.58"></a>
<FONT color="green">059</FONT> /**<a name="line.59"></a>
<FONT color="green">060</FONT> * @see PrefixResolver#handlesNullPrefixes() <a name="line.60"></a>
<FONT color="green">061</FONT> */<a name="line.61"></a>
<FONT color="green">062</FONT> public boolean handlesNullPrefixes() {<a name="line.62"></a>
<FONT color="green">063</FONT> return false;<a name="line.63"></a>
<FONT color="green">064</FONT> }<a name="line.64"></a>
<FONT color="green">065</FONT> <a name="line.65"></a>
<FONT color="green">066</FONT> <a name="line.66"></a>
<FONT color="green">067</FONT> /**<a name="line.67"></a>
<FONT color="green">068</FONT> * The URI for the XML namespace.<a name="line.68"></a>
<FONT color="green">069</FONT> * (Duplicate of that found in org.apache.xpath.XPathContext). <a name="line.69"></a>
<FONT color="green">070</FONT> */<a name="line.70"></a>
<FONT color="green">071</FONT> <a name="line.71"></a>
<FONT color="green">072</FONT> public static final String S_XMLNAMESPACEURI =<a name="line.72"></a>
<FONT color="green">073</FONT> "http://www.w3.org/XML/1998/namespace";<a name="line.73"></a>
<FONT color="green">074</FONT> <a name="line.74"></a>
<FONT color="green">075</FONT> <a name="line.75"></a>
<FONT color="green">076</FONT> /**<a name="line.76"></a>
<FONT color="green">077</FONT> * Given a prefix and a Context Node, get the corresponding namespace.<a name="line.77"></a>
<FONT color="green">078</FONT> * Warning: This will not work correctly if namespaceContext<a name="line.78"></a>
<FONT color="green">079</FONT> * is an attribute node.<a name="line.79"></a>
<FONT color="green">080</FONT> * @param prefix Prefix to resolve.<a name="line.80"></a>
<FONT color="green">081</FONT> * @param namespaceContext Node from which to start searching for a<a name="line.81"></a>
<FONT color="green">082</FONT> * xmlns attribute that binds a prefix to a namespace.<a name="line.82"></a>
<FONT color="green">083</FONT> * @return Namespace that prefix resolves to, or null if prefix<a name="line.83"></a>
<FONT color="green">084</FONT> * is not bound.<a name="line.84"></a>
<FONT color="green">085</FONT> */<a name="line.85"></a>
<FONT color="green">086</FONT> public String getNamespaceForPrefix(String prefix,<a name="line.86"></a>
<FONT color="green">087</FONT> org.w3c.dom.Node namespaceContext) {<a name="line.87"></a>
<FONT color="green">088</FONT> Node parent = namespaceContext;<a name="line.88"></a>
<FONT color="green">089</FONT> String namespace = null;<a name="line.89"></a>
<FONT color="green">090</FONT> <a name="line.90"></a>
<FONT color="green">091</FONT> if (prefix.equals("xml")) {<a name="line.91"></a>
<FONT color="green">092</FONT> namespace = S_XMLNAMESPACEURI;<a name="line.92"></a>
<FONT color="green">093</FONT> } else {<a name="line.93"></a>
<FONT color="green">094</FONT> int type;<a name="line.94"></a>
<FONT color="green">095</FONT> <a name="line.95"></a>
<FONT color="green">096</FONT> while ((null != parent) &amp;&amp; (null == namespace)<a name="line.96"></a>
<FONT color="green">097</FONT> &amp;&amp; (((type = parent.getNodeType()) == Node.ELEMENT_NODE)<a name="line.97"></a>
<FONT color="green">098</FONT> || (type == Node.ENTITY_REFERENCE_NODE))) {<a name="line.98"></a>
<FONT color="green">099</FONT> <a name="line.99"></a>
<FONT color="green">100</FONT> if (type == Node.ELEMENT_NODE) {<a name="line.100"></a>
<FONT color="green">101</FONT> NamedNodeMap nnm = parent.getAttributes();<a name="line.101"></a>
<FONT color="green">102</FONT> <a name="line.102"></a>
<FONT color="green">103</FONT> for (int i = 0; i &lt; nnm.getLength(); i++) {<a name="line.103"></a>
<FONT color="green">104</FONT> Node attr = nnm.item(i);<a name="line.104"></a>
<FONT color="green">105</FONT> String aname = attr.getNodeName();<a name="line.105"></a>
<FONT color="green">106</FONT> boolean isPrefix = aname.startsWith("xmlns:");<a name="line.106"></a>
<FONT color="green">107</FONT> <a name="line.107"></a>
<FONT color="green">108</FONT> if (isPrefix || aname.equals("xmlns")) {<a name="line.108"></a>
<FONT color="green">109</FONT> int index = aname.indexOf(':');<a name="line.109"></a>
<FONT color="green">110</FONT> String p =isPrefix ?aname.substring(index + 1) :"";<a name="line.110"></a>
<FONT color="green">111</FONT> <a name="line.111"></a>
<FONT color="green">112</FONT> if (p.equals(prefix)) {<a name="line.112"></a>
<FONT color="green">113</FONT> namespace = attr.getNodeValue();<a name="line.113"></a>
<FONT color="green">114</FONT> break;<a name="line.114"></a>
<FONT color="green">115</FONT> }<a name="line.115"></a>
<FONT color="green">116</FONT> }<a name="line.116"></a>
<FONT color="green">117</FONT> }<a name="line.117"></a>
<FONT color="green">118</FONT> }<a name="line.118"></a>
<FONT color="green">119</FONT> <a name="line.119"></a>
<FONT color="green">120</FONT> parent = parent.getParentNode();<a name="line.120"></a>
<FONT color="green">121</FONT> }<a name="line.121"></a>
<FONT color="green">122</FONT> }<a name="line.122"></a>
<FONT color="green">123</FONT> return namespace;<a name="line.123"></a>
<FONT color="green">124</FONT> }<a name="line.124"></a>
<FONT color="green">125</FONT> <a name="line.125"></a>
<FONT color="green">126</FONT> }<a name="line.126"></a>
<FONT color="green">127</FONT> <a name="line.127"></a>
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