Google Git
Sign in
apache / xalan-site / baed2198e564a4221346ce9823f7f57830a0d758 / . / docs / xalan / xalan-j / apidocs / src-html / org / apache / xml / utils / DOMHelper.html
blob: 5bd878f3e3864a26f8f8b3fc4b8742aee232aa9c [file] [log] [blame]
<HTML>
<BODY BGCOLOR="white">
<PRE>
<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> /*<a name="line.18"></a>
<FONT color="green">019</FONT> * $Id: DOMHelper.java 468655 2006-10-28 07:12:06Z minchau $<a name="line.19"></a>
<FONT color="green">020</FONT> */<a name="line.20"></a>
<FONT color="green">021</FONT> package org.apache.xml.utils;<a name="line.21"></a>
<FONT color="green">022</FONT> <a name="line.22"></a>
<FONT color="green">023</FONT> import java.util.Hashtable;<a name="line.23"></a>
<FONT color="green">024</FONT> import java.util.Vector;<a name="line.24"></a>
<FONT color="green">025</FONT> <a name="line.25"></a>
<FONT color="green">026</FONT> import javax.xml.XMLConstants;<a name="line.26"></a>
<FONT color="green">027</FONT> import javax.xml.parsers.DocumentBuilder;<a name="line.27"></a>
<FONT color="green">028</FONT> import javax.xml.parsers.DocumentBuilderFactory;<a name="line.28"></a>
<FONT color="green">029</FONT> import javax.xml.parsers.ParserConfigurationException;<a name="line.29"></a>
<FONT color="green">030</FONT> <a name="line.30"></a>
<FONT color="green">031</FONT> import org.apache.xml.dtm.ref.DTMNodeProxy;<a name="line.31"></a>
<FONT color="green">032</FONT> import org.apache.xml.res.XMLErrorResources;<a name="line.32"></a>
<FONT color="green">033</FONT> import org.apache.xml.res.XMLMessages;<a name="line.33"></a>
<FONT color="green">034</FONT> <a name="line.34"></a>
<FONT color="green">035</FONT> import org.w3c.dom.Attr;<a name="line.35"></a>
<FONT color="green">036</FONT> import org.w3c.dom.DOMImplementation;<a name="line.36"></a>
<FONT color="green">037</FONT> import org.w3c.dom.Document;<a name="line.37"></a>
<FONT color="green">038</FONT> import org.w3c.dom.DocumentType;<a name="line.38"></a>
<FONT color="green">039</FONT> import org.w3c.dom.Element;<a name="line.39"></a>
<FONT color="green">040</FONT> import org.w3c.dom.Entity;<a name="line.40"></a>
<FONT color="green">041</FONT> import org.w3c.dom.NamedNodeMap;<a name="line.41"></a>
<FONT color="green">042</FONT> import org.w3c.dom.Node;<a name="line.42"></a>
<FONT color="green">043</FONT> import org.w3c.dom.Text;<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> * @deprecated Since the introduction of the DTM, this class will be removed.<a name="line.46"></a>
<FONT color="green">047</FONT> * This class provides a front-end to DOM implementations, providing<a name="line.47"></a>
<FONT color="green">048</FONT> * a number of utility functions that either aren't yet standardized<a name="line.48"></a>
<FONT color="green">049</FONT> * by the DOM spec or that are defined in optional DOM modules and<a name="line.49"></a>
<FONT color="green">050</FONT> * hence may not be present in all DOMs.<a name="line.50"></a>
<FONT color="green">051</FONT> */<a name="line.51"></a>
<FONT color="green">052</FONT> public class DOMHelper<a name="line.52"></a>
<FONT color="green">053</FONT> {<a name="line.53"></a>
<FONT color="green">054</FONT> <a name="line.54"></a>
<FONT color="green">055</FONT> /**<a name="line.55"></a>
<FONT color="green">056</FONT> * DOM Level 1 did not have a standard mechanism for creating a new<a name="line.56"></a>
<FONT color="green">057</FONT> * Document object. This function provides a DOM-implementation-independent<a name="line.57"></a>
<FONT color="green">058</FONT> * abstraction for that for that concept. It's typically used when <a name="line.58"></a>
<FONT color="green">059</FONT> * outputting a new DOM as the result of an operation.<a name="line.59"></a>
<FONT color="green">060</FONT> * &lt;p&gt;<a name="line.60"></a>
<FONT color="green">061</FONT> * TODO: This isn't directly compatable with DOM Level 2. <a name="line.61"></a>
<FONT color="green">062</FONT> * The Level 2 createDocument call also creates the root <a name="line.62"></a>
<FONT color="green">063</FONT> * element, and thus requires that you know what that element will be<a name="line.63"></a>
<FONT color="green">064</FONT> * before creating the Document. We should think about whether we want<a name="line.64"></a>
<FONT color="green">065</FONT> * to change this code, and the callers, so we can use the DOM's own <a name="line.65"></a>
<FONT color="green">066</FONT> * method. (It's also possible that DOM Level 3 may relax this<a name="line.66"></a>
<FONT color="green">067</FONT> * sequence, but you may give up some intelligence in the DOM by<a name="line.67"></a>
<FONT color="green">068</FONT> * doing so; the intent was that knowing the document type and root<a name="line.68"></a>
<FONT color="green">069</FONT> * element might let the DOM automatically switch to a specialized<a name="line.69"></a>
<FONT color="green">070</FONT> * subclass for particular kinds of documents.)<a name="line.70"></a>
<FONT color="green">071</FONT> *<a name="line.71"></a>
<FONT color="green">072</FONT> * @param isSecureProcessing state of the secure processing feature.<a name="line.72"></a>
<FONT color="green">073</FONT> * @return The newly created DOM Document object, with no children, or<a name="line.73"></a>
<FONT color="green">074</FONT> * null if we can't find a DOM implementation that permits creating<a name="line.74"></a>
<FONT color="green">075</FONT> * new empty Documents.<a name="line.75"></a>
<FONT color="green">076</FONT> */<a name="line.76"></a>
<FONT color="green">077</FONT> public static Document createDocument(boolean isSecureProcessing)<a name="line.77"></a>
<FONT color="green">078</FONT> {<a name="line.78"></a>
<FONT color="green">079</FONT> <a name="line.79"></a>
<FONT color="green">080</FONT> try<a name="line.80"></a>
<FONT color="green">081</FONT> {<a name="line.81"></a>
<FONT color="green">082</FONT> <a name="line.82"></a>
<FONT color="green">083</FONT> // Use an implementation of the JAVA API for XML Parsing 1.0 to<a name="line.83"></a>
<FONT color="green">084</FONT> // create a DOM Document node to contain the result.<a name="line.84"></a>
<FONT color="green">085</FONT> DocumentBuilderFactory dfactory = DocumentBuilderFactory.newInstance();<a name="line.85"></a>
<FONT color="green">086</FONT> <a name="line.86"></a>
<FONT color="green">087</FONT> dfactory.setNamespaceAware(true);<a name="line.87"></a>
<FONT color="green">088</FONT> dfactory.setValidating(true);<a name="line.88"></a>
<FONT color="green">089</FONT> <a name="line.89"></a>
<FONT color="green">090</FONT> if (isSecureProcessing)<a name="line.90"></a>
<FONT color="green">091</FONT> {<a name="line.91"></a>
<FONT color="green">092</FONT> try<a name="line.92"></a>
<FONT color="green">093</FONT> {<a name="line.93"></a>
<FONT color="green">094</FONT> dfactory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);<a name="line.94"></a>
<FONT color="green">095</FONT> }<a name="line.95"></a>
<FONT color="green">096</FONT> catch (ParserConfigurationException pce) {}<a name="line.96"></a>
<FONT color="green">097</FONT> }<a name="line.97"></a>
<FONT color="green">098</FONT> <a name="line.98"></a>
<FONT color="green">099</FONT> DocumentBuilder docBuilder = dfactory.newDocumentBuilder();<a name="line.99"></a>
<FONT color="green">100</FONT> Document outNode = docBuilder.newDocument();<a name="line.100"></a>
<FONT color="green">101</FONT> <a name="line.101"></a>
<FONT color="green">102</FONT> return outNode;<a name="line.102"></a>
<FONT color="green">103</FONT> }<a name="line.103"></a>
<FONT color="green">104</FONT> catch (ParserConfigurationException pce)<a name="line.104"></a>
<FONT color="green">105</FONT> {<a name="line.105"></a>
<FONT color="green">106</FONT> throw new RuntimeException(<a name="line.106"></a>
<FONT color="green">107</FONT> XMLMessages.createXMLMessage(<a name="line.107"></a>
<FONT color="green">108</FONT> XMLErrorResources.ER_CREATEDOCUMENT_NOT_SUPPORTED, null)); //"createDocument() not supported in XPathContext!");<a name="line.108"></a>
<FONT color="green">109</FONT> <a name="line.109"></a>
<FONT color="green">110</FONT> // return null;<a name="line.110"></a>
<FONT color="green">111</FONT> }<a name="line.111"></a>
<FONT color="green">112</FONT> }<a name="line.112"></a>
<FONT color="green">113</FONT> <a name="line.113"></a>
<FONT color="green">114</FONT> /**<a name="line.114"></a>
<FONT color="green">115</FONT> * DOM Level 1 did not have a standard mechanism for creating a new<a name="line.115"></a>
<FONT color="green">116</FONT> * Document object. This function provides a DOM-implementation-independent<a name="line.116"></a>
<FONT color="green">117</FONT> * abstraction for that for that concept. It's typically used when <a name="line.117"></a>
<FONT color="green">118</FONT> * outputting a new DOM as the result of an operation.<a name="line.118"></a>
<FONT color="green">119</FONT> *<a name="line.119"></a>
<FONT color="green">120</FONT> * @return The newly created DOM Document object, with no children, or<a name="line.120"></a>
<FONT color="green">121</FONT> * null if we can't find a DOM implementation that permits creating<a name="line.121"></a>
<FONT color="green">122</FONT> * new empty Documents.<a name="line.122"></a>
<FONT color="green">123</FONT> */<a name="line.123"></a>
<FONT color="green">124</FONT> public static Document createDocument()<a name="line.124"></a>
<FONT color="green">125</FONT> {<a name="line.125"></a>
<FONT color="green">126</FONT> return createDocument(false);<a name="line.126"></a>
<FONT color="green">127</FONT> }<a name="line.127"></a>
<FONT color="green">128</FONT> <a name="line.128"></a>
<FONT color="green">129</FONT> /**<a name="line.129"></a>
<FONT color="green">130</FONT> * Tells, through the combination of the default-space attribute<a name="line.130"></a>
<FONT color="green">131</FONT> * on xsl:stylesheet, xsl:strip-space, xsl:preserve-space, and the<a name="line.131"></a>
<FONT color="green">132</FONT> * xml:space attribute, whether or not extra whitespace should be stripped<a name="line.132"></a>
<FONT color="green">133</FONT> * from the node. Literal elements from template elements should<a name="line.133"></a>
<FONT color="green">134</FONT> * &lt;em&gt;not&lt;/em&gt; be tested with this function.<a name="line.134"></a>
<FONT color="green">135</FONT> * @param textNode A text node from the source tree.<a name="line.135"></a>
<FONT color="green">136</FONT> * @return true if the text node should be stripped of extra whitespace.<a name="line.136"></a>
<FONT color="green">137</FONT> *<a name="line.137"></a>
<FONT color="green">138</FONT> * @throws javax.xml.transform.TransformerException<a name="line.138"></a>
<FONT color="green">139</FONT> * @xsl.usage advanced<a name="line.139"></a>
<FONT color="green">140</FONT> */<a name="line.140"></a>
<FONT color="green">141</FONT> public boolean shouldStripSourceNode(Node textNode)<a name="line.141"></a>
<FONT color="green">142</FONT> throws javax.xml.transform.TransformerException<a name="line.142"></a>
<FONT color="green">143</FONT> {<a name="line.143"></a>
<FONT color="green">144</FONT> <a name="line.144"></a>
<FONT color="green">145</FONT> // return (null == m_envSupport) ? false : m_envSupport.shouldStripSourceNode(textNode);<a name="line.145"></a>
<FONT color="green">146</FONT> return false;<a name="line.146"></a>
<FONT color="green">147</FONT> }<a name="line.147"></a>
<FONT color="green">148</FONT> <a name="line.148"></a>
<FONT color="green">149</FONT> /**<a name="line.149"></a>
<FONT color="green">150</FONT> * Supports the XPath function GenerateID by returning a unique<a name="line.150"></a>
<FONT color="green">151</FONT> * identifier string for any given DOM Node.<a name="line.151"></a>
<FONT color="green">152</FONT> * &lt;p&gt;<a name="line.152"></a>
<FONT color="green">153</FONT> * Warning: The base implementation uses the Node object's hashCode(),<a name="line.153"></a>
<FONT color="green">154</FONT> * which is NOT guaranteed to be unique. If that method hasn't been<a name="line.154"></a>
<FONT color="green">155</FONT> * overridden in this DOM ipmlementation, most Java implementions will<a name="line.155"></a>
<FONT color="green">156</FONT> * derive it from the object's address and should be OK... but if<a name="line.156"></a>
<FONT color="green">157</FONT> * your DOM uses a different definition of hashCode (eg hashing the<a name="line.157"></a>
<FONT color="green">158</FONT> * contents of the subtree), or if your DOM may have multiple objects<a name="line.158"></a>
<FONT color="green">159</FONT> * that represent a single Node in the data structure (eg via proxying),<a name="line.159"></a>
<FONT color="green">160</FONT> * you may need to find another way to assign a unique identifier.<a name="line.160"></a>
<FONT color="green">161</FONT> * &lt;p&gt;<a name="line.161"></a>
<FONT color="green">162</FONT> * Also, be aware that if nodes are destroyed and recreated, there is<a name="line.162"></a>
<FONT color="green">163</FONT> * an open issue regarding whether an ID may be reused. Currently<a name="line.163"></a>
<FONT color="green">164</FONT> * we're assuming that the input document is stable for the duration<a name="line.164"></a>
<FONT color="green">165</FONT> * of the XPath/XSLT operation, so this shouldn't arise in this context.<a name="line.165"></a>
<FONT color="green">166</FONT> * &lt;p&gt;<a name="line.166"></a>
<FONT color="green">167</FONT> * (DOM Level 3 is investigating providing a unique node "key", but<a name="line.167"></a>
<FONT color="green">168</FONT> * that won't help Level 1 and Level 2 implementations.)<a name="line.168"></a>
<FONT color="green">169</FONT> *<a name="line.169"></a>
<FONT color="green">170</FONT> * @param node whose identifier you want to obtain<a name="line.170"></a>
<FONT color="green">171</FONT> *<a name="line.171"></a>
<FONT color="green">172</FONT> * @return a string which should be different for every Node object.<a name="line.172"></a>
<FONT color="green">173</FONT> */<a name="line.173"></a>
<FONT color="green">174</FONT> public String getUniqueID(Node node)<a name="line.174"></a>
<FONT color="green">175</FONT> {<a name="line.175"></a>
<FONT color="green">176</FONT> return "N" + Integer.toHexString(node.hashCode()).toUpperCase();<a name="line.176"></a>
<FONT color="green">177</FONT> }<a name="line.177"></a>
<FONT color="green">178</FONT> <a name="line.178"></a>
<FONT color="green">179</FONT> /**<a name="line.179"></a>
<FONT color="green">180</FONT> * Figure out whether node2 should be considered as being later<a name="line.180"></a>
<FONT color="green">181</FONT> * in the document than node1, in Document Order as defined<a name="line.181"></a>
<FONT color="green">182</FONT> * by the XPath model. This may not agree with the ordering defined<a name="line.182"></a>
<FONT color="green">183</FONT> * by other XML applications.<a name="line.183"></a>
<FONT color="green">184</FONT> * &lt;p&gt;<a name="line.184"></a>
<FONT color="green">185</FONT> * There are some cases where ordering isn't defined, and neither are<a name="line.185"></a>
<FONT color="green">186</FONT> * the results of this function -- though we'll generally return true.<a name="line.186"></a>
<FONT color="green">187</FONT> * <a name="line.187"></a>
<FONT color="green">188</FONT> * TODO: Make sure this does the right thing with attribute nodes!!!<a name="line.188"></a>
<FONT color="green">189</FONT> *<a name="line.189"></a>
<FONT color="green">190</FONT> * @param node1 DOM Node to perform position comparison on.<a name="line.190"></a>
<FONT color="green">191</FONT> * @param node2 DOM Node to perform position comparison on .<a name="line.191"></a>
<FONT color="green">192</FONT> * <a name="line.192"></a>
<FONT color="green">193</FONT> * @return false if node2 comes before node1, otherwise return true.<a name="line.193"></a>
<FONT color="green">194</FONT> * You can think of this as <a name="line.194"></a>
<FONT color="green">195</FONT> * &lt;code&gt;(node1.documentOrderPosition &amp;lt;= node2.documentOrderPosition)&lt;/code&gt;.<a name="line.195"></a>
<FONT color="green">196</FONT> */<a name="line.196"></a>
<FONT color="green">197</FONT> public static boolean isNodeAfter(Node node1, Node node2)<a name="line.197"></a>
<FONT color="green">198</FONT> {<a name="line.198"></a>
<FONT color="green">199</FONT> if (node1 == node2 || isNodeTheSame(node1, node2))<a name="line.199"></a>
<FONT color="green">200</FONT> return true;<a name="line.200"></a>
<FONT color="green">201</FONT> <a name="line.201"></a>
<FONT color="green">202</FONT> // Default return value, if there is no defined ordering<a name="line.202"></a>
<FONT color="green">203</FONT> boolean isNodeAfter = true;<a name="line.203"></a>
<FONT color="green">204</FONT> <a name="line.204"></a>
<FONT color="green">205</FONT> Node parent1 = getParentOfNode(node1);<a name="line.205"></a>
<FONT color="green">206</FONT> Node parent2 = getParentOfNode(node2); <a name="line.206"></a>
<FONT color="green">207</FONT> <a name="line.207"></a>
<FONT color="green">208</FONT> // Optimize for most common case<a name="line.208"></a>
<FONT color="green">209</FONT> if (parent1 == parent2 || isNodeTheSame(parent1, parent2)) // then we know they are siblings<a name="line.209"></a>
<FONT color="green">210</FONT> {<a name="line.210"></a>
<FONT color="green">211</FONT> if (null != parent1)<a name="line.211"></a>
<FONT color="green">212</FONT> isNodeAfter = isNodeAfterSibling(parent1, node1, node2);<a name="line.212"></a>
<FONT color="green">213</FONT> else<a name="line.213"></a>
<FONT color="green">214</FONT> {<a name="line.214"></a>
<FONT color="green">215</FONT> // If both parents are null, ordering is not defined.<a name="line.215"></a>
<FONT color="green">216</FONT> // We're returning a value in lieu of throwing an exception.<a name="line.216"></a>
<FONT color="green">217</FONT> // Not a case we expect to arise in XPath, but beware if you<a name="line.217"></a>
<FONT color="green">218</FONT> // try to reuse this method.<a name="line.218"></a>
<FONT color="green">219</FONT> <a name="line.219"></a>
<FONT color="green">220</FONT> // We can just fall through in this case, which allows us<a name="line.220"></a>
<FONT color="green">221</FONT> // to hit the debugging code at the end of the function.<a name="line.221"></a>
<FONT color="green">222</FONT> //return isNodeAfter;<a name="line.222"></a>
<FONT color="green">223</FONT> }<a name="line.223"></a>
<FONT color="green">224</FONT> }<a name="line.224"></a>
<FONT color="green">225</FONT> else<a name="line.225"></a>
<FONT color="green">226</FONT> {<a name="line.226"></a>
<FONT color="green">227</FONT> <a name="line.227"></a>
<FONT color="green">228</FONT> // General strategy: Figure out the lengths of the two <a name="line.228"></a>
<FONT color="green">229</FONT> // ancestor chains, reconcile the lengths, and look for<a name="line.229"></a>
<FONT color="green">230</FONT> // the lowest common ancestor. If that ancestor is one of<a name="line.230"></a>
<FONT color="green">231</FONT> // the nodes being compared, it comes before the other.<a name="line.231"></a>
<FONT color="green">232</FONT> // Otherwise perform a sibling compare. <a name="line.232"></a>
<FONT color="green">233</FONT> //<a name="line.233"></a>
<FONT color="green">234</FONT> // NOTE: If no common ancestor is found, ordering is undefined<a name="line.234"></a>
<FONT color="green">235</FONT> // and we return the default value of isNodeAfter.<a name="line.235"></a>
<FONT color="green">236</FONT> <a name="line.236"></a>
<FONT color="green">237</FONT> // Count parents in each ancestor chain<a name="line.237"></a>
<FONT color="green">238</FONT> int nParents1 = 2, nParents2 = 2; // include node &amp; parent obtained above<a name="line.238"></a>
<FONT color="green">239</FONT> <a name="line.239"></a>
<FONT color="green">240</FONT> while (parent1 != null)<a name="line.240"></a>
<FONT color="green">241</FONT> {<a name="line.241"></a>
<FONT color="green">242</FONT> nParents1++;<a name="line.242"></a>
<FONT color="green">243</FONT> <a name="line.243"></a>
<FONT color="green">244</FONT> parent1 = getParentOfNode(parent1);<a name="line.244"></a>
<FONT color="green">245</FONT> }<a name="line.245"></a>
<FONT color="green">246</FONT> <a name="line.246"></a>
<FONT color="green">247</FONT> while (parent2 != null)<a name="line.247"></a>
<FONT color="green">248</FONT> {<a name="line.248"></a>
<FONT color="green">249</FONT> nParents2++;<a name="line.249"></a>
<FONT color="green">250</FONT> <a name="line.250"></a>
<FONT color="green">251</FONT> parent2 = getParentOfNode(parent2);<a name="line.251"></a>
<FONT color="green">252</FONT> }<a name="line.252"></a>
<FONT color="green">253</FONT> <a name="line.253"></a>
<FONT color="green">254</FONT> // Initially assume scan for common ancestor starts with<a name="line.254"></a>
<FONT color="green">255</FONT> // the input nodes.<a name="line.255"></a>
<FONT color="green">256</FONT> Node startNode1 = node1, startNode2 = node2;<a name="line.256"></a>
<FONT color="green">257</FONT> <a name="line.257"></a>
<FONT color="green">258</FONT> // If one ancestor chain is longer, adjust its start point<a name="line.258"></a>
<FONT color="green">259</FONT> // so we're comparing at the same depths<a name="line.259"></a>
<FONT color="green">260</FONT> if (nParents1 &lt; nParents2)<a name="line.260"></a>
<FONT color="green">261</FONT> {<a name="line.261"></a>
<FONT color="green">262</FONT> // Adjust startNode2 to depth of startNode1<a name="line.262"></a>
<FONT color="green">263</FONT> int adjust = nParents2 - nParents1;<a name="line.263"></a>
<FONT color="green">264</FONT> <a name="line.264"></a>
<FONT color="green">265</FONT> for (int i = 0; i &lt; adjust; i++)<a name="line.265"></a>
<FONT color="green">266</FONT> {<a name="line.266"></a>
<FONT color="green">267</FONT> startNode2 = getParentOfNode(startNode2);<a name="line.267"></a>
<FONT color="green">268</FONT> }<a name="line.268"></a>
<FONT color="green">269</FONT> }<a name="line.269"></a>
<FONT color="green">270</FONT> else if (nParents1 &gt; nParents2)<a name="line.270"></a>
<FONT color="green">271</FONT> {<a name="line.271"></a>
<FONT color="green">272</FONT> // adjust startNode1 to depth of startNode2<a name="line.272"></a>
<FONT color="green">273</FONT> int adjust = nParents1 - nParents2;<a name="line.273"></a>
<FONT color="green">274</FONT> <a name="line.274"></a>
<FONT color="green">275</FONT> for (int i = 0; i &lt; adjust; i++)<a name="line.275"></a>
<FONT color="green">276</FONT> {<a name="line.276"></a>
<FONT color="green">277</FONT> startNode1 = getParentOfNode(startNode1);<a name="line.277"></a>
<FONT color="green">278</FONT> }<a name="line.278"></a>
<FONT color="green">279</FONT> }<a name="line.279"></a>
<FONT color="green">280</FONT> <a name="line.280"></a>
<FONT color="green">281</FONT> Node prevChild1 = null, prevChild2 = null; // so we can "back up"<a name="line.281"></a>
<FONT color="green">282</FONT> <a name="line.282"></a>
<FONT color="green">283</FONT> // Loop up the ancestor chain looking for common parent<a name="line.283"></a>
<FONT color="green">284</FONT> while (null != startNode1)<a name="line.284"></a>
<FONT color="green">285</FONT> {<a name="line.285"></a>
<FONT color="green">286</FONT> if (startNode1 == startNode2 || isNodeTheSame(startNode1, startNode2)) // common parent?<a name="line.286"></a>
<FONT color="green">287</FONT> {<a name="line.287"></a>
<FONT color="green">288</FONT> if (null == prevChild1) // first time in loop?<a name="line.288"></a>
<FONT color="green">289</FONT> {<a name="line.289"></a>
<FONT color="green">290</FONT> <a name="line.290"></a>
<FONT color="green">291</FONT> // Edge condition: one is the ancestor of the other.<a name="line.291"></a>
<FONT color="green">292</FONT> isNodeAfter = (nParents1 &lt; nParents2) ? true : false;<a name="line.292"></a>
<FONT color="green">293</FONT> <a name="line.293"></a>
<FONT color="green">294</FONT> break; // from while loop<a name="line.294"></a>
<FONT color="green">295</FONT> }<a name="line.295"></a>
<FONT color="green">296</FONT> else <a name="line.296"></a>
<FONT color="green">297</FONT> {<a name="line.297"></a>
<FONT color="green">298</FONT> // Compare ancestors below lowest-common as siblings<a name="line.298"></a>
<FONT color="green">299</FONT> isNodeAfter = isNodeAfterSibling(startNode1, prevChild1,<a name="line.299"></a>
<FONT color="green">300</FONT> prevChild2);<a name="line.300"></a>
<FONT color="green">301</FONT> <a name="line.301"></a>
<FONT color="green">302</FONT> break; // from while loop<a name="line.302"></a>
<FONT color="green">303</FONT> }<a name="line.303"></a>
<FONT color="green">304</FONT> } // end if(startNode1 == startNode2)<a name="line.304"></a>
<FONT color="green">305</FONT> <a name="line.305"></a>
<FONT color="green">306</FONT> // Move up one level and try again<a name="line.306"></a>
<FONT color="green">307</FONT> prevChild1 = startNode1;<a name="line.307"></a>
<FONT color="green">308</FONT> startNode1 = getParentOfNode(startNode1);<a name="line.308"></a>
<FONT color="green">309</FONT> prevChild2 = startNode2;<a name="line.309"></a>
<FONT color="green">310</FONT> startNode2 = getParentOfNode(startNode2);<a name="line.310"></a>
<FONT color="green">311</FONT> } // end while(parents exist to examine)<a name="line.311"></a>
<FONT color="green">312</FONT> } // end big else (not immediate siblings)<a name="line.312"></a>
<FONT color="green">313</FONT> <a name="line.313"></a>
<FONT color="green">314</FONT> // WARNING: The following diagnostic won't report the early<a name="line.314"></a>
<FONT color="green">315</FONT> // "same node" case. Fix if/when needed.<a name="line.315"></a>
<FONT color="green">316</FONT> <a name="line.316"></a>
<FONT color="green">317</FONT> /* -- please do not remove... very useful for diagnostics --<a name="line.317"></a>
<FONT color="green">318</FONT> System.out.println("node1 = "+node1.getNodeName()+"("+node1.getNodeType()+")"+<a name="line.318"></a>
<FONT color="green">319</FONT> ", node2 = "+node2.getNodeName()<a name="line.319"></a>
<FONT color="green">320</FONT> +"("+node2.getNodeType()+")"+<a name="line.320"></a>
<FONT color="green">321</FONT> ", isNodeAfter = "+isNodeAfter); */<a name="line.321"></a>
<FONT color="green">322</FONT> return isNodeAfter;<a name="line.322"></a>
<FONT color="green">323</FONT> } // end isNodeAfter(Node node1, Node node2)<a name="line.323"></a>
<FONT color="green">324</FONT> <a name="line.324"></a>
<FONT color="green">325</FONT> /**<a name="line.325"></a>
<FONT color="green">326</FONT> * Use DTMNodeProxy to determine whether two nodes are the same.<a name="line.326"></a>
<FONT color="green">327</FONT> * <a name="line.327"></a>
<FONT color="green">328</FONT> * @param node1 The first DOM node to compare.<a name="line.328"></a>
<FONT color="green">329</FONT> * @param node2 The second DOM node to compare.<a name="line.329"></a>
<FONT color="green">330</FONT> * @return true if the two nodes are the same.<a name="line.330"></a>
<FONT color="green">331</FONT> */<a name="line.331"></a>
<FONT color="green">332</FONT> public static boolean isNodeTheSame(Node node1, Node node2)<a name="line.332"></a>
<FONT color="green">333</FONT> {<a name="line.333"></a>
<FONT color="green">334</FONT> if (node1 instanceof DTMNodeProxy &amp;&amp; node2 instanceof DTMNodeProxy)<a name="line.334"></a>
<FONT color="green">335</FONT> return ((DTMNodeProxy)node1).equals((DTMNodeProxy)node2);<a name="line.335"></a>
<FONT color="green">336</FONT> else<a name="line.336"></a>
<FONT color="green">337</FONT> return (node1 == node2);<a name="line.337"></a>
<FONT color="green">338</FONT> }<a name="line.338"></a>
<FONT color="green">339</FONT> <a name="line.339"></a>
<FONT color="green">340</FONT> /**<a name="line.340"></a>
<FONT color="green">341</FONT> * Figure out if child2 is after child1 in document order.<a name="line.341"></a>
<FONT color="green">342</FONT> * &lt;p&gt;<a name="line.342"></a>
<FONT color="green">343</FONT> * Warning: Some aspects of "document order" are not well defined.<a name="line.343"></a>
<FONT color="green">344</FONT> * For example, the order of attributes is considered<a name="line.344"></a>
<FONT color="green">345</FONT> * meaningless in XML, and the order reported by our model will<a name="line.345"></a>
<FONT color="green">346</FONT> * be consistant for a given invocation but may not <a name="line.346"></a>
<FONT color="green">347</FONT> * match that of either the source file or the serialized output.<a name="line.347"></a>
<FONT color="green">348</FONT> * <a name="line.348"></a>
<FONT color="green">349</FONT> * @param parent Must be the parent of both child1 and child2.<a name="line.349"></a>
<FONT color="green">350</FONT> * @param child1 Must be the child of parent and not equal to child2.<a name="line.350"></a>
<FONT color="green">351</FONT> * @param child2 Must be the child of parent and not equal to child1.<a name="line.351"></a>
<FONT color="green">352</FONT> * @return true if child 2 is after child1 in document order.<a name="line.352"></a>
<FONT color="green">353</FONT> */<a name="line.353"></a>
<FONT color="green">354</FONT> private static boolean isNodeAfterSibling(Node parent, Node child1,<a name="line.354"></a>
<FONT color="green">355</FONT> Node child2)<a name="line.355"></a>
<FONT color="green">356</FONT> {<a name="line.356"></a>
<FONT color="green">357</FONT> <a name="line.357"></a>
<FONT color="green">358</FONT> boolean isNodeAfterSibling = false;<a name="line.358"></a>
<FONT color="green">359</FONT> short child1type = child1.getNodeType();<a name="line.359"></a>
<FONT color="green">360</FONT> short child2type = child2.getNodeType();<a name="line.360"></a>
<FONT color="green">361</FONT> <a name="line.361"></a>
<FONT color="green">362</FONT> if ((Node.ATTRIBUTE_NODE != child1type)<a name="line.362"></a>
<FONT color="green">363</FONT> &amp;&amp; (Node.ATTRIBUTE_NODE == child2type))<a name="line.363"></a>
<FONT color="green">364</FONT> {<a name="line.364"></a>
<FONT color="green">365</FONT> <a name="line.365"></a>
<FONT color="green">366</FONT> // always sort attributes before non-attributes.<a name="line.366"></a>
<FONT color="green">367</FONT> isNodeAfterSibling = false;<a name="line.367"></a>
<FONT color="green">368</FONT> }<a name="line.368"></a>
<FONT color="green">369</FONT> else if ((Node.ATTRIBUTE_NODE == child1type)<a name="line.369"></a>
<FONT color="green">370</FONT> &amp;&amp; (Node.ATTRIBUTE_NODE != child2type))<a name="line.370"></a>
<FONT color="green">371</FONT> {<a name="line.371"></a>
<FONT color="green">372</FONT> <a name="line.372"></a>
<FONT color="green">373</FONT> // always sort attributes before non-attributes.<a name="line.373"></a>
<FONT color="green">374</FONT> isNodeAfterSibling = true;<a name="line.374"></a>
<FONT color="green">375</FONT> }<a name="line.375"></a>
<FONT color="green">376</FONT> else if (Node.ATTRIBUTE_NODE == child1type)<a name="line.376"></a>
<FONT color="green">377</FONT> {<a name="line.377"></a>
<FONT color="green">378</FONT> NamedNodeMap children = parent.getAttributes();<a name="line.378"></a>
<FONT color="green">379</FONT> int nNodes = children.getLength();<a name="line.379"></a>
<FONT color="green">380</FONT> boolean found1 = false, found2 = false;<a name="line.380"></a>
<FONT color="green">381</FONT> <a name="line.381"></a>
<FONT color="green">382</FONT> // Count from the start until we find one or the other.<a name="line.382"></a>
<FONT color="green">383</FONT> for (int i = 0; i &lt; nNodes; i++)<a name="line.383"></a>
<FONT color="green">384</FONT> {<a name="line.384"></a>
<FONT color="green">385</FONT> Node child = children.item(i);<a name="line.385"></a>
<FONT color="green">386</FONT> <a name="line.386"></a>
<FONT color="green">387</FONT> if (child1 == child || isNodeTheSame(child1, child))<a name="line.387"></a>
<FONT color="green">388</FONT> {<a name="line.388"></a>
<FONT color="green">389</FONT> if (found2)<a name="line.389"></a>
<FONT color="green">390</FONT> {<a name="line.390"></a>
<FONT color="green">391</FONT> isNodeAfterSibling = false;<a name="line.391"></a>
<FONT color="green">392</FONT> <a name="line.392"></a>
<FONT color="green">393</FONT> break;<a name="line.393"></a>
<FONT color="green">394</FONT> }<a name="line.394"></a>
<FONT color="green">395</FONT> <a name="line.395"></a>
<FONT color="green">396</FONT> found1 = true;<a name="line.396"></a>
<FONT color="green">397</FONT> }<a name="line.397"></a>
<FONT color="green">398</FONT> else if (child2 == child || isNodeTheSame(child2, child))<a name="line.398"></a>
<FONT color="green">399</FONT> {<a name="line.399"></a>
<FONT color="green">400</FONT> if (found1)<a name="line.400"></a>
<FONT color="green">401</FONT> {<a name="line.401"></a>
<FONT color="green">402</FONT> isNodeAfterSibling = true;<a name="line.402"></a>
<FONT color="green">403</FONT> <a name="line.403"></a>
<FONT color="green">404</FONT> break;<a name="line.404"></a>
<FONT color="green">405</FONT> }<a name="line.405"></a>
<FONT color="green">406</FONT> <a name="line.406"></a>
<FONT color="green">407</FONT> found2 = true;<a name="line.407"></a>
<FONT color="green">408</FONT> }<a name="line.408"></a>
<FONT color="green">409</FONT> }<a name="line.409"></a>
<FONT color="green">410</FONT> }<a name="line.410"></a>
<FONT color="green">411</FONT> else<a name="line.411"></a>
<FONT color="green">412</FONT> {<a name="line.412"></a>
<FONT color="green">413</FONT> // TODO: Check performance of alternate solution:<a name="line.413"></a>
<FONT color="green">414</FONT> // There are two choices here: Count from the start of<a name="line.414"></a>
<FONT color="green">415</FONT> // the document until we find one or the other, or count<a name="line.415"></a>
<FONT color="green">416</FONT> // from one until we find or fail to find the other.<a name="line.416"></a>
<FONT color="green">417</FONT> // Either can wind up scanning all the siblings in the worst<a name="line.417"></a>
<FONT color="green">418</FONT> // case, which on a wide document can be a lot of work but<a name="line.418"></a>
<FONT color="green">419</FONT> // is more typically is a short list. <a name="line.419"></a>
<FONT color="green">420</FONT> // Scanning from the start involves two tests per iteration,<a name="line.420"></a>
<FONT color="green">421</FONT> // but it isn't clear that scanning from the middle doesn't<a name="line.421"></a>
<FONT color="green">422</FONT> // yield more iterations on average. <a name="line.422"></a>
<FONT color="green">423</FONT> // We should run some testcases.<a name="line.423"></a>
<FONT color="green">424</FONT> Node child = parent.getFirstChild();<a name="line.424"></a>
<FONT color="green">425</FONT> boolean found1 = false, found2 = false;<a name="line.425"></a>
<FONT color="green">426</FONT> <a name="line.426"></a>
<FONT color="green">427</FONT> while (null != child)<a name="line.427"></a>
<FONT color="green">428</FONT> {<a name="line.428"></a>
<FONT color="green">429</FONT> <a name="line.429"></a>
<FONT color="green">430</FONT> // Node child = children.item(i);<a name="line.430"></a>
<FONT color="green">431</FONT> if (child1 == child || isNodeTheSame(child1, child))<a name="line.431"></a>
<FONT color="green">432</FONT> {<a name="line.432"></a>
<FONT color="green">433</FONT> if (found2)<a name="line.433"></a>
<FONT color="green">434</FONT> {<a name="line.434"></a>
<FONT color="green">435</FONT> isNodeAfterSibling = false;<a name="line.435"></a>
<FONT color="green">436</FONT> <a name="line.436"></a>
<FONT color="green">437</FONT> break;<a name="line.437"></a>
<FONT color="green">438</FONT> }<a name="line.438"></a>
<FONT color="green">439</FONT> <a name="line.439"></a>
<FONT color="green">440</FONT> found1 = true;<a name="line.440"></a>
<FONT color="green">441</FONT> }<a name="line.441"></a>
<FONT color="green">442</FONT> else if (child2 == child || isNodeTheSame(child2, child))<a name="line.442"></a>
<FONT color="green">443</FONT> {<a name="line.443"></a>
<FONT color="green">444</FONT> if (found1)<a name="line.444"></a>
<FONT color="green">445</FONT> {<a name="line.445"></a>
<FONT color="green">446</FONT> isNodeAfterSibling = true;<a name="line.446"></a>
<FONT color="green">447</FONT> <a name="line.447"></a>
<FONT color="green">448</FONT> break;<a name="line.448"></a>
<FONT color="green">449</FONT> }<a name="line.449"></a>
<FONT color="green">450</FONT> <a name="line.450"></a>
<FONT color="green">451</FONT> found2 = true;<a name="line.451"></a>
<FONT color="green">452</FONT> }<a name="line.452"></a>
<FONT color="green">453</FONT> <a name="line.453"></a>
<FONT color="green">454</FONT> child = child.getNextSibling();<a name="line.454"></a>
<FONT color="green">455</FONT> }<a name="line.455"></a>
<FONT color="green">456</FONT> }<a name="line.456"></a>
<FONT color="green">457</FONT> <a name="line.457"></a>
<FONT color="green">458</FONT> return isNodeAfterSibling;<a name="line.458"></a>
<FONT color="green">459</FONT> } // end isNodeAfterSibling(Node parent, Node child1, Node child2)<a name="line.459"></a>
<FONT color="green">460</FONT> <a name="line.460"></a>
<FONT color="green">461</FONT> //==========================================================<a name="line.461"></a>
<FONT color="green">462</FONT> // SECTION: Namespace resolution<a name="line.462"></a>
<FONT color="green">463</FONT> //==========================================================<a name="line.463"></a>
<FONT color="green">464</FONT> <a name="line.464"></a>
<FONT color="green">465</FONT> /**<a name="line.465"></a>
<FONT color="green">466</FONT> * Get the depth level of this node in the tree (equals 1 for<a name="line.466"></a>
<FONT color="green">467</FONT> * a parentless node).<a name="line.467"></a>
<FONT color="green">468</FONT> *<a name="line.468"></a>
<FONT color="green">469</FONT> * @param n Node to be examined.<a name="line.469"></a>
<FONT color="green">470</FONT> * @return the number of ancestors, plus one<a name="line.470"></a>
<FONT color="green">471</FONT> * @xsl.usage internal<a name="line.471"></a>
<FONT color="green">472</FONT> */<a name="line.472"></a>
<FONT color="green">473</FONT> public short getLevel(Node n)<a name="line.473"></a>
<FONT color="green">474</FONT> {<a name="line.474"></a>
<FONT color="green">475</FONT> <a name="line.475"></a>
<FONT color="green">476</FONT> short level = 1;<a name="line.476"></a>
<FONT color="green">477</FONT> <a name="line.477"></a>
<FONT color="green">478</FONT> while (null != (n = getParentOfNode(n)))<a name="line.478"></a>
<FONT color="green">479</FONT> {<a name="line.479"></a>
<FONT color="green">480</FONT> level++;<a name="line.480"></a>
<FONT color="green">481</FONT> }<a name="line.481"></a>
<FONT color="green">482</FONT> <a name="line.482"></a>
<FONT color="green">483</FONT> return level;<a name="line.483"></a>
<FONT color="green">484</FONT> }<a name="line.484"></a>
<FONT color="green">485</FONT> <a name="line.485"></a>
<FONT color="green">486</FONT> /**<a name="line.486"></a>
<FONT color="green">487</FONT> * Given an XML Namespace prefix and a context in which the prefix<a name="line.487"></a>
<FONT color="green">488</FONT> * is to be evaluated, return the Namespace Name this prefix was <a name="line.488"></a>
<FONT color="green">489</FONT> * bound to. Note that DOM Level 3 is expected to provide a version of<a name="line.489"></a>
<FONT color="green">490</FONT> * this which deals with the DOM's "early binding" behavior.<a name="line.490"></a>
<FONT color="green">491</FONT> * <a name="line.491"></a>
<FONT color="green">492</FONT> * Default handling:<a name="line.492"></a>
<FONT color="green">493</FONT> *<a name="line.493"></a>
<FONT color="green">494</FONT> * @param prefix String containing namespace prefix to be resolved, <a name="line.494"></a>
<FONT color="green">495</FONT> * without the ':' which separates it from the localname when used <a name="line.495"></a>
<FONT color="green">496</FONT> * in a Node Name. The empty sting signifies the default namespace<a name="line.496"></a>
<FONT color="green">497</FONT> * at this point in the document.<a name="line.497"></a>
<FONT color="green">498</FONT> * @param namespaceContext Element which provides context for resolution.<a name="line.498"></a>
<FONT color="green">499</FONT> * (We could extend this to work for other nodes by first seeking their<a name="line.499"></a>
<FONT color="green">500</FONT> * nearest Element ancestor.)<a name="line.500"></a>
<FONT color="green">501</FONT> *<a name="line.501"></a>
<FONT color="green">502</FONT> * @return a String containing the Namespace URI which this prefix<a name="line.502"></a>
<FONT color="green">503</FONT> * represents in the specified context.<a name="line.503"></a>
<FONT color="green">504</FONT> */<a name="line.504"></a>
<FONT color="green">505</FONT> public String getNamespaceForPrefix(String prefix, Element namespaceContext)<a name="line.505"></a>
<FONT color="green">506</FONT> {<a name="line.506"></a>
<FONT color="green">507</FONT> <a name="line.507"></a>
<FONT color="green">508</FONT> int type;<a name="line.508"></a>
<FONT color="green">509</FONT> Node parent = namespaceContext;<a name="line.509"></a>
<FONT color="green">510</FONT> String namespace = null;<a name="line.510"></a>
<FONT color="green">511</FONT> <a name="line.511"></a>
<FONT color="green">512</FONT> if (prefix.equals("xml"))<a name="line.512"></a>
<FONT color="green">513</FONT> {<a name="line.513"></a>
<FONT color="green">514</FONT> namespace = QName.S_XMLNAMESPACEURI; // Hardcoded, per Namespace spec<a name="line.514"></a>
<FONT color="green">515</FONT> }<a name="line.515"></a>
<FONT color="green">516</FONT> else if(prefix.equals("xmlns"))<a name="line.516"></a>
<FONT color="green">517</FONT> {<a name="line.517"></a>
<FONT color="green">518</FONT> // Hardcoded in the DOM spec, expected to be adopted by<a name="line.518"></a>
<FONT color="green">519</FONT> // Namespace spec. NOTE: Namespace declarations _must_ use<a name="line.519"></a>
<FONT color="green">520</FONT> // the xmlns: prefix; other prefixes declared as belonging<a name="line.520"></a>
<FONT color="green">521</FONT> // to this namespace will not be recognized and should<a name="line.521"></a>
<FONT color="green">522</FONT> // probably be rejected by parsers as erroneous declarations.<a name="line.522"></a>
<FONT color="green">523</FONT> namespace = "http://www.w3.org/2000/xmlns/"; <a name="line.523"></a>
<FONT color="green">524</FONT> }<a name="line.524"></a>
<FONT color="green">525</FONT> else<a name="line.525"></a>
<FONT color="green">526</FONT> {<a name="line.526"></a>
<FONT color="green">527</FONT> // Attribute name for this prefix's declaration<a name="line.527"></a>
<FONT color="green">528</FONT> String declname=(prefix=="")<a name="line.528"></a>
<FONT color="green">529</FONT> ? "xmlns"<a name="line.529"></a>
<FONT color="green">530</FONT> : "xmlns:"+prefix;<a name="line.530"></a>
<FONT color="green">531</FONT> <a name="line.531"></a>
<FONT color="green">532</FONT> // Scan until we run out of Elements or have resolved the namespace<a name="line.532"></a>
<FONT color="green">533</FONT> while ((null != parent) &amp;&amp; (null == namespace)<a name="line.533"></a>
<FONT color="green">534</FONT> &amp;&amp; (((type = parent.getNodeType()) == Node.ELEMENT_NODE)<a name="line.534"></a>
<FONT color="green">535</FONT> || (type == Node.ENTITY_REFERENCE_NODE)))<a name="line.535"></a>
<FONT color="green">536</FONT> {<a name="line.536"></a>
<FONT color="green">537</FONT> if (type == Node.ELEMENT_NODE)<a name="line.537"></a>
<FONT color="green">538</FONT> {<a name="line.538"></a>
<FONT color="green">539</FONT> <a name="line.539"></a>
<FONT color="green">540</FONT> // Look for the appropriate Namespace Declaration attribute,<a name="line.540"></a>
<FONT color="green">541</FONT> // either "xmlns:prefix" or (if prefix is "") "xmlns".<a name="line.541"></a>
<FONT color="green">542</FONT> // TODO: This does not handle "implicit declarations"<a name="line.542"></a>
<FONT color="green">543</FONT> // which may be created when the DOM is edited. DOM Level<a name="line.543"></a>
<FONT color="green">544</FONT> // 3 will define how those should be interpreted. But<a name="line.544"></a>
<FONT color="green">545</FONT> // this issue won't arise in freshly-parsed DOMs.<a name="line.545"></a>
<FONT color="green">546</FONT> <a name="line.546"></a>
<FONT color="green">547</FONT> // NOTE: declname is set earlier, outside the loop.<a name="line.547"></a>
<FONT color="green">548</FONT> Attr attr=((Element)parent).getAttributeNode(declname);<a name="line.548"></a>
<FONT color="green">549</FONT> if(attr!=null)<a name="line.549"></a>
<FONT color="green">550</FONT> {<a name="line.550"></a>
<FONT color="green">551</FONT> namespace = attr.getNodeValue();<a name="line.551"></a>
<FONT color="green">552</FONT> break;<a name="line.552"></a>
<FONT color="green">553</FONT> }<a name="line.553"></a>
<FONT color="green">554</FONT> }<a name="line.554"></a>
<FONT color="green">555</FONT> <a name="line.555"></a>
<FONT color="green">556</FONT> parent = getParentOfNode(parent);<a name="line.556"></a>
<FONT color="green">557</FONT> }<a name="line.557"></a>
<FONT color="green">558</FONT> }<a name="line.558"></a>
<FONT color="green">559</FONT> <a name="line.559"></a>
<FONT color="green">560</FONT> return namespace;<a name="line.560"></a>
<FONT color="green">561</FONT> }<a name="line.561"></a>
<FONT color="green">562</FONT> <a name="line.562"></a>
<FONT color="green">563</FONT> /**<a name="line.563"></a>
<FONT color="green">564</FONT> * An experiment for the moment.<a name="line.564"></a>
<FONT color="green">565</FONT> */<a name="line.565"></a>
<FONT color="green">566</FONT> Hashtable m_NSInfos = new Hashtable();<a name="line.566"></a>
<FONT color="green">567</FONT> <a name="line.567"></a>
<FONT color="green">568</FONT> /** Object to put into the m_NSInfos table that tells that a node has not been <a name="line.568"></a>
<FONT color="green">569</FONT> * processed, but has xmlns namespace decls. */<a name="line.569"></a>
<FONT color="green">570</FONT> protected static final NSInfo m_NSInfoUnProcWithXMLNS = new NSInfo(false,<a name="line.570"></a>
<FONT color="green">571</FONT> true);<a name="line.571"></a>
<FONT color="green">572</FONT> <a name="line.572"></a>
<FONT color="green">573</FONT> /** Object to put into the m_NSInfos table that tells that a node has not been <a name="line.573"></a>
<FONT color="green">574</FONT> * processed, but has no xmlns namespace decls. */<a name="line.574"></a>
<FONT color="green">575</FONT> protected static final NSInfo m_NSInfoUnProcWithoutXMLNS = new NSInfo(false,<a name="line.575"></a>
<FONT color="green">576</FONT> false);<a name="line.576"></a>
<FONT color="green">577</FONT> <a name="line.577"></a>
<FONT color="green">578</FONT> /** Object to put into the m_NSInfos table that tells that a node has not been <a name="line.578"></a>
<FONT color="green">579</FONT> * processed, and has no xmlns namespace decls, and has no ancestor decls. */<a name="line.579"></a>
<FONT color="green">580</FONT> protected static final NSInfo m_NSInfoUnProcNoAncestorXMLNS =<a name="line.580"></a>
<FONT color="green">581</FONT> new NSInfo(false, false, NSInfo.ANCESTORNOXMLNS);<a name="line.581"></a>
<FONT color="green">582</FONT> <a name="line.582"></a>
<FONT color="green">583</FONT> /** Object to put into the m_NSInfos table that tells that a node has been <a name="line.583"></a>
<FONT color="green">584</FONT> * processed, and has xmlns namespace decls. */<a name="line.584"></a>
<FONT color="green">585</FONT> protected static final NSInfo m_NSInfoNullWithXMLNS = new NSInfo(true,<a name="line.585"></a>
<FONT color="green">586</FONT> true);<a name="line.586"></a>
<FONT color="green">587</FONT> <a name="line.587"></a>
<FONT color="green">588</FONT> /** Object to put into the m_NSInfos table that tells that a node has been <a name="line.588"></a>
<FONT color="green">589</FONT> * processed, and has no xmlns namespace decls. */<a name="line.589"></a>
<FONT color="green">590</FONT> protected static final NSInfo m_NSInfoNullWithoutXMLNS = new NSInfo(true,<a name="line.590"></a>
<FONT color="green">591</FONT> false);<a name="line.591"></a>
<FONT color="green">592</FONT> <a name="line.592"></a>
<FONT color="green">593</FONT> /** Object to put into the m_NSInfos table that tells that a node has been <a name="line.593"></a>
<FONT color="green">594</FONT> * processed, and has no xmlns namespace decls. and has no ancestor decls. */<a name="line.594"></a>
<FONT color="green">595</FONT> protected static final NSInfo m_NSInfoNullNoAncestorXMLNS =<a name="line.595"></a>
<FONT color="green">596</FONT> new NSInfo(true, false, NSInfo.ANCESTORNOXMLNS);<a name="line.596"></a>
<FONT color="green">597</FONT> <a name="line.597"></a>
<FONT color="green">598</FONT> /** Vector of node (odd indexes) and NSInfos (even indexes) that tell if <a name="line.598"></a>
<FONT color="green">599</FONT> * the given node is a candidate for ancestor namespace processing. */<a name="line.599"></a>
<FONT color="green">600</FONT> protected Vector m_candidateNoAncestorXMLNS = new Vector();<a name="line.600"></a>
<FONT color="green">601</FONT> <a name="line.601"></a>
<FONT color="green">602</FONT> /**<a name="line.602"></a>
<FONT color="green">603</FONT> * Returns the namespace of the given node. Differs from simply getting<a name="line.603"></a>
<FONT color="green">604</FONT> * the node's prefix and using getNamespaceForPrefix in that it attempts<a name="line.604"></a>
<FONT color="green">605</FONT> * to cache some of the data in NSINFO objects, to avoid repeated lookup.<a name="line.605"></a>
<FONT color="green">606</FONT> * TODO: Should we consider moving that logic into getNamespaceForPrefix?<a name="line.606"></a>
<FONT color="green">607</FONT> *<a name="line.607"></a>
<FONT color="green">608</FONT> * @param n Node to be examined.<a name="line.608"></a>
<FONT color="green">609</FONT> *<a name="line.609"></a>
<FONT color="green">610</FONT> * @return String containing the Namespace Name (uri) for this node.<a name="line.610"></a>
<FONT color="green">611</FONT> * Note that this is undefined for any nodes other than Elements and<a name="line.611"></a>
<FONT color="green">612</FONT> * Attributes.<a name="line.612"></a>
<FONT color="green">613</FONT> */<a name="line.613"></a>
<FONT color="green">614</FONT> public String getNamespaceOfNode(Node n)<a name="line.614"></a>
<FONT color="green">615</FONT> {<a name="line.615"></a>
<FONT color="green">616</FONT> <a name="line.616"></a>
<FONT color="green">617</FONT> String namespaceOfPrefix;<a name="line.617"></a>
<FONT color="green">618</FONT> boolean hasProcessedNS;<a name="line.618"></a>
<FONT color="green">619</FONT> NSInfo nsInfo;<a name="line.619"></a>
<FONT color="green">620</FONT> short ntype = n.getNodeType();<a name="line.620"></a>
<FONT color="green">621</FONT> <a name="line.621"></a>
<FONT color="green">622</FONT> if (Node.ATTRIBUTE_NODE != ntype)<a name="line.622"></a>
<FONT color="green">623</FONT> {<a name="line.623"></a>
<FONT color="green">624</FONT> Object nsObj = m_NSInfos.get(n); // return value<a name="line.624"></a>
<FONT color="green">625</FONT> <a name="line.625"></a>
<FONT color="green">626</FONT> nsInfo = (nsObj == null) ? null : (NSInfo) nsObj;<a name="line.626"></a>
<FONT color="green">627</FONT> hasProcessedNS = (nsInfo == null) ? false : nsInfo.m_hasProcessedNS;<a name="line.627"></a>
<FONT color="green">628</FONT> }<a name="line.628"></a>
<FONT color="green">629</FONT> else<a name="line.629"></a>
<FONT color="green">630</FONT> {<a name="line.630"></a>
<FONT color="green">631</FONT> hasProcessedNS = false;<a name="line.631"></a>
<FONT color="green">632</FONT> nsInfo = null;<a name="line.632"></a>
<FONT color="green">633</FONT> }<a name="line.633"></a>
<FONT color="green">634</FONT> <a name="line.634"></a>
<FONT color="green">635</FONT> if (hasProcessedNS)<a name="line.635"></a>
<FONT color="green">636</FONT> {<a name="line.636"></a>
<FONT color="green">637</FONT> namespaceOfPrefix = nsInfo.m_namespace;<a name="line.637"></a>
<FONT color="green">638</FONT> }<a name="line.638"></a>
<FONT color="green">639</FONT> else<a name="line.639"></a>
<FONT color="green">640</FONT> {<a name="line.640"></a>
<FONT color="green">641</FONT> namespaceOfPrefix = null;<a name="line.641"></a>
<FONT color="green">642</FONT> <a name="line.642"></a>
<FONT color="green">643</FONT> String nodeName = n.getNodeName();<a name="line.643"></a>
<FONT color="green">644</FONT> int indexOfNSSep = nodeName.indexOf(':');<a name="line.644"></a>
<FONT color="green">645</FONT> String prefix;<a name="line.645"></a>
<FONT color="green">646</FONT> <a name="line.646"></a>
<FONT color="green">647</FONT> if (Node.ATTRIBUTE_NODE == ntype)<a name="line.647"></a>
<FONT color="green">648</FONT> {<a name="line.648"></a>
<FONT color="green">649</FONT> if (indexOfNSSep &gt; 0)<a name="line.649"></a>
<FONT color="green">650</FONT> {<a name="line.650"></a>
<FONT color="green">651</FONT> prefix = nodeName.substring(0, indexOfNSSep);<a name="line.651"></a>
<FONT color="green">652</FONT> }<a name="line.652"></a>
<FONT color="green">653</FONT> else<a name="line.653"></a>
<FONT color="green">654</FONT> {<a name="line.654"></a>
<FONT color="green">655</FONT> <a name="line.655"></a>
<FONT color="green">656</FONT> // Attributes don't use the default namespace, so if <a name="line.656"></a>
<FONT color="green">657</FONT> // there isn't a prefix, we're done.<a name="line.657"></a>
<FONT color="green">658</FONT> return namespaceOfPrefix;<a name="line.658"></a>
<FONT color="green">659</FONT> }<a name="line.659"></a>
<FONT color="green">660</FONT> }<a name="line.660"></a>
<FONT color="green">661</FONT> else<a name="line.661"></a>
<FONT color="green">662</FONT> {<a name="line.662"></a>
<FONT color="green">663</FONT> prefix = (indexOfNSSep &gt;= 0)<a name="line.663"></a>
<FONT color="green">664</FONT> ? nodeName.substring(0, indexOfNSSep) : "";<a name="line.664"></a>
<FONT color="green">665</FONT> }<a name="line.665"></a>
<FONT color="green">666</FONT> <a name="line.666"></a>
<FONT color="green">667</FONT> boolean ancestorsHaveXMLNS = false;<a name="line.667"></a>
<FONT color="green">668</FONT> boolean nHasXMLNS = false;<a name="line.668"></a>
<FONT color="green">669</FONT> <a name="line.669"></a>
<FONT color="green">670</FONT> if (prefix.equals("xml"))<a name="line.670"></a>
<FONT color="green">671</FONT> {<a name="line.671"></a>
<FONT color="green">672</FONT> namespaceOfPrefix = QName.S_XMLNAMESPACEURI;<a name="line.672"></a>
<FONT color="green">673</FONT> }<a name="line.673"></a>
<FONT color="green">674</FONT> else<a name="line.674"></a>
<FONT color="green">675</FONT> {<a name="line.675"></a>
<FONT color="green">676</FONT> int parentType;<a name="line.676"></a>
<FONT color="green">677</FONT> Node parent = n;<a name="line.677"></a>
<FONT color="green">678</FONT> <a name="line.678"></a>
<FONT color="green">679</FONT> while ((null != parent) &amp;&amp; (null == namespaceOfPrefix))<a name="line.679"></a>
<FONT color="green">680</FONT> {<a name="line.680"></a>
<FONT color="green">681</FONT> if ((null != nsInfo)<a name="line.681"></a>
<FONT color="green">682</FONT> &amp;&amp; (nsInfo.m_ancestorHasXMLNSAttrs<a name="line.682"></a>
<FONT color="green">683</FONT> == NSInfo.ANCESTORNOXMLNS))<a name="line.683"></a>
<FONT color="green">684</FONT> {<a name="line.684"></a>
<FONT color="green">685</FONT> break;<a name="line.685"></a>
<FONT color="green">686</FONT> }<a name="line.686"></a>
<FONT color="green">687</FONT> <a name="line.687"></a>
<FONT color="green">688</FONT> parentType = parent.getNodeType();<a name="line.688"></a>
<FONT color="green">689</FONT> <a name="line.689"></a>
<FONT color="green">690</FONT> if ((null == nsInfo) || nsInfo.m_hasXMLNSAttrs)<a name="line.690"></a>
<FONT color="green">691</FONT> {<a name="line.691"></a>
<FONT color="green">692</FONT> boolean elementHasXMLNS = false;<a name="line.692"></a>
<FONT color="green">693</FONT> <a name="line.693"></a>
<FONT color="green">694</FONT> if (parentType == Node.ELEMENT_NODE)<a name="line.694"></a>
<FONT color="green">695</FONT> {<a name="line.695"></a>
<FONT color="green">696</FONT> NamedNodeMap nnm = parent.getAttributes();<a name="line.696"></a>
<FONT color="green">697</FONT> <a name="line.697"></a>
<FONT color="green">698</FONT> for (int i = 0; i &lt; nnm.getLength(); i++)<a name="line.698"></a>
<FONT color="green">699</FONT> {<a name="line.699"></a>
<FONT color="green">700</FONT> Node attr = nnm.item(i);<a name="line.700"></a>
<FONT color="green">701</FONT> String aname = attr.getNodeName();<a name="line.701"></a>
<FONT color="green">702</FONT> <a name="line.702"></a>
<FONT color="green">703</FONT> if (aname.charAt(0) == 'x')<a name="line.703"></a>
<FONT color="green">704</FONT> {<a name="line.704"></a>
<FONT color="green">705</FONT> boolean isPrefix = aname.startsWith("xmlns:");<a name="line.705"></a>
<FONT color="green">706</FONT> <a name="line.706"></a>
<FONT color="green">707</FONT> if (aname.equals("xmlns") || isPrefix)<a name="line.707"></a>
<FONT color="green">708</FONT> {<a name="line.708"></a>
<FONT color="green">709</FONT> if (n == parent)<a name="line.709"></a>
<FONT color="green">710</FONT> nHasXMLNS = true;<a name="line.710"></a>
<FONT color="green">711</FONT> <a name="line.711"></a>
<FONT color="green">712</FONT> elementHasXMLNS = true;<a name="line.712"></a>
<FONT color="green">713</FONT> ancestorsHaveXMLNS = true;<a name="line.713"></a>
<FONT color="green">714</FONT> <a name="line.714"></a>
<FONT color="green">715</FONT> String p = isPrefix ? aname.substring(6) : "";<a name="line.715"></a>
<FONT color="green">716</FONT> <a name="line.716"></a>
<FONT color="green">717</FONT> if (p.equals(prefix))<a name="line.717"></a>
<FONT color="green">718</FONT> {<a name="line.718"></a>
<FONT color="green">719</FONT> namespaceOfPrefix = attr.getNodeValue();<a name="line.719"></a>
<FONT color="green">720</FONT> <a name="line.720"></a>
<FONT color="green">721</FONT> break;<a name="line.721"></a>
<FONT color="green">722</FONT> }<a name="line.722"></a>
<FONT color="green">723</FONT> }<a name="line.723"></a>
<FONT color="green">724</FONT> }<a name="line.724"></a>
<FONT color="green">725</FONT> }<a name="line.725"></a>
<FONT color="green">726</FONT> }<a name="line.726"></a>
<FONT color="green">727</FONT> <a name="line.727"></a>
<FONT color="green">728</FONT> if ((Node.ATTRIBUTE_NODE != parentType) &amp;&amp; (null == nsInfo)<a name="line.728"></a>
<FONT color="green">729</FONT> &amp;&amp; (n != parent))<a name="line.729"></a>
<FONT color="green">730</FONT> {<a name="line.730"></a>
<FONT color="green">731</FONT> nsInfo = elementHasXMLNS<a name="line.731"></a>
<FONT color="green">732</FONT> ? m_NSInfoUnProcWithXMLNS : m_NSInfoUnProcWithoutXMLNS;<a name="line.732"></a>
<FONT color="green">733</FONT> <a name="line.733"></a>
<FONT color="green">734</FONT> m_NSInfos.put(parent, nsInfo);<a name="line.734"></a>
<FONT color="green">735</FONT> }<a name="line.735"></a>
<FONT color="green">736</FONT> }<a name="line.736"></a>
<FONT color="green">737</FONT> <a name="line.737"></a>
<FONT color="green">738</FONT> if (Node.ATTRIBUTE_NODE == parentType)<a name="line.738"></a>
<FONT color="green">739</FONT> {<a name="line.739"></a>
<FONT color="green">740</FONT> parent = getParentOfNode(parent);<a name="line.740"></a>
<FONT color="green">741</FONT> }<a name="line.741"></a>
<FONT color="green">742</FONT> else<a name="line.742"></a>
<FONT color="green">743</FONT> {<a name="line.743"></a>
<FONT color="green">744</FONT> m_candidateNoAncestorXMLNS.addElement(parent);<a name="line.744"></a>
<FONT color="green">745</FONT> m_candidateNoAncestorXMLNS.addElement(nsInfo);<a name="line.745"></a>
<FONT color="green">746</FONT> <a name="line.746"></a>
<FONT color="green">747</FONT> parent = parent.getParentNode();<a name="line.747"></a>
<FONT color="green">748</FONT> }<a name="line.748"></a>
<FONT color="green">749</FONT> <a name="line.749"></a>
<FONT color="green">750</FONT> if (null != parent)<a name="line.750"></a>
<FONT color="green">751</FONT> {<a name="line.751"></a>
<FONT color="green">752</FONT> Object nsObj = m_NSInfos.get(parent); // return value<a name="line.752"></a>
<FONT color="green">753</FONT> <a name="line.753"></a>
<FONT color="green">754</FONT> nsInfo = (nsObj == null) ? null : (NSInfo) nsObj;<a name="line.754"></a>
<FONT color="green">755</FONT> }<a name="line.755"></a>
<FONT color="green">756</FONT> }<a name="line.756"></a>
<FONT color="green">757</FONT> <a name="line.757"></a>
<FONT color="green">758</FONT> int nCandidates = m_candidateNoAncestorXMLNS.size();<a name="line.758"></a>
<FONT color="green">759</FONT> <a name="line.759"></a>
<FONT color="green">760</FONT> if (nCandidates &gt; 0)<a name="line.760"></a>
<FONT color="green">761</FONT> {<a name="line.761"></a>
<FONT color="green">762</FONT> if ((false == ancestorsHaveXMLNS) &amp;&amp; (null == parent))<a name="line.762"></a>
<FONT color="green">763</FONT> {<a name="line.763"></a>
<FONT color="green">764</FONT> for (int i = 0; i &lt; nCandidates; i += 2)<a name="line.764"></a>
<FONT color="green">765</FONT> {<a name="line.765"></a>
<FONT color="green">766</FONT> Object candidateInfo = m_candidateNoAncestorXMLNS.elementAt(i<a name="line.766"></a>
<FONT color="green">767</FONT> + 1);<a name="line.767"></a>
<FONT color="green">768</FONT> <a name="line.768"></a>
<FONT color="green">769</FONT> if (candidateInfo == m_NSInfoUnProcWithoutXMLNS)<a name="line.769"></a>
<FONT color="green">770</FONT> {<a name="line.770"></a>
<FONT color="green">771</FONT> m_NSInfos.put(m_candidateNoAncestorXMLNS.elementAt(i),<a name="line.771"></a>
<FONT color="green">772</FONT> m_NSInfoUnProcNoAncestorXMLNS);<a name="line.772"></a>
<FONT color="green">773</FONT> }<a name="line.773"></a>
<FONT color="green">774</FONT> else if (candidateInfo == m_NSInfoNullWithoutXMLNS)<a name="line.774"></a>
<FONT color="green">775</FONT> {<a name="line.775"></a>
<FONT color="green">776</FONT> m_NSInfos.put(m_candidateNoAncestorXMLNS.elementAt(i),<a name="line.776"></a>
<FONT color="green">777</FONT> m_NSInfoNullNoAncestorXMLNS);<a name="line.777"></a>
<FONT color="green">778</FONT> }<a name="line.778"></a>
<FONT color="green">779</FONT> }<a name="line.779"></a>
<FONT color="green">780</FONT> }<a name="line.780"></a>
<FONT color="green">781</FONT> <a name="line.781"></a>
<FONT color="green">782</FONT> m_candidateNoAncestorXMLNS.removeAllElements();<a name="line.782"></a>
<FONT color="green">783</FONT> }<a name="line.783"></a>
<FONT color="green">784</FONT> }<a name="line.784"></a>
<FONT color="green">785</FONT> <a name="line.785"></a>
<FONT color="green">786</FONT> if (Node.ATTRIBUTE_NODE != ntype)<a name="line.786"></a>
<FONT color="green">787</FONT> {<a name="line.787"></a>
<FONT color="green">788</FONT> if (null == namespaceOfPrefix)<a name="line.788"></a>
<FONT color="green">789</FONT> {<a name="line.789"></a>
<FONT color="green">790</FONT> if (ancestorsHaveXMLNS)<a name="line.790"></a>
<FONT color="green">791</FONT> {<a name="line.791"></a>
<FONT color="green">792</FONT> if (nHasXMLNS)<a name="line.792"></a>
<FONT color="green">793</FONT> m_NSInfos.put(n, m_NSInfoNullWithXMLNS);<a name="line.793"></a>
<FONT color="green">794</FONT> else<a name="line.794"></a>
<FONT color="green">795</FONT> m_NSInfos.put(n, m_NSInfoNullWithoutXMLNS);<a name="line.795"></a>
<FONT color="green">796</FONT> }<a name="line.796"></a>
<FONT color="green">797</FONT> else<a name="line.797"></a>
<FONT color="green">798</FONT> {<a name="line.798"></a>
<FONT color="green">799</FONT> m_NSInfos.put(n, m_NSInfoNullNoAncestorXMLNS);<a name="line.799"></a>
<FONT color="green">800</FONT> }<a name="line.800"></a>
<FONT color="green">801</FONT> }<a name="line.801"></a>
<FONT color="green">802</FONT> else<a name="line.802"></a>
<FONT color="green">803</FONT> {<a name="line.803"></a>
<FONT color="green">804</FONT> m_NSInfos.put(n, new NSInfo(namespaceOfPrefix, nHasXMLNS));<a name="line.804"></a>
<FONT color="green">805</FONT> }<a name="line.805"></a>
<FONT color="green">806</FONT> }<a name="line.806"></a>
<FONT color="green">807</FONT> }<a name="line.807"></a>
<FONT color="green">808</FONT> <a name="line.808"></a>
<FONT color="green">809</FONT> return namespaceOfPrefix;<a name="line.809"></a>
<FONT color="green">810</FONT> }<a name="line.810"></a>
<FONT color="green">811</FONT> <a name="line.811"></a>
<FONT color="green">812</FONT> /**<a name="line.812"></a>
<FONT color="green">813</FONT> * Returns the local name of the given node. If the node's name begins<a name="line.813"></a>
<FONT color="green">814</FONT> * with a namespace prefix, this is the part after the colon; otherwise<a name="line.814"></a>
<FONT color="green">815</FONT> * it's the full node name.<a name="line.815"></a>
<FONT color="green">816</FONT> *<a name="line.816"></a>
<FONT color="green">817</FONT> * @param n the node to be examined.<a name="line.817"></a>
<FONT color="green">818</FONT> *<a name="line.818"></a>
<FONT color="green">819</FONT> * @return String containing the Local Name<a name="line.819"></a>
<FONT color="green">820</FONT> */<a name="line.820"></a>
<FONT color="green">821</FONT> public String getLocalNameOfNode(Node n)<a name="line.821"></a>
<FONT color="green">822</FONT> {<a name="line.822"></a>
<FONT color="green">823</FONT> <a name="line.823"></a>
<FONT color="green">824</FONT> String qname = n.getNodeName();<a name="line.824"></a>
<FONT color="green">825</FONT> int index = qname.indexOf(':');<a name="line.825"></a>
<FONT color="green">826</FONT> <a name="line.826"></a>
<FONT color="green">827</FONT> return (index &lt; 0) ? qname : qname.substring(index + 1);<a name="line.827"></a>
<FONT color="green">828</FONT> }<a name="line.828"></a>
<FONT color="green">829</FONT> <a name="line.829"></a>
<FONT color="green">830</FONT> /**<a name="line.830"></a>
<FONT color="green">831</FONT> * Returns the element name with the namespace prefix (if any) replaced<a name="line.831"></a>
<FONT color="green">832</FONT> * by the Namespace URI it was bound to. This is not a standard <a name="line.832"></a>
<FONT color="green">833</FONT> * representation of a node name, but it allows convenient <a name="line.833"></a>
<FONT color="green">834</FONT> * single-string comparison of the "universal" names of two nodes.<a name="line.834"></a>
<FONT color="green">835</FONT> *<a name="line.835"></a>
<FONT color="green">836</FONT> * @param elem Element to be examined.<a name="line.836"></a>
<FONT color="green">837</FONT> *<a name="line.837"></a>
<FONT color="green">838</FONT> * @return String in the form "namespaceURI:localname" if the node<a name="line.838"></a>
<FONT color="green">839</FONT> * belongs to a namespace, or simply "localname" if it doesn't.<a name="line.839"></a>
<FONT color="green">840</FONT> * @see #getExpandedAttributeName<a name="line.840"></a>
<FONT color="green">841</FONT> */<a name="line.841"></a>
<FONT color="green">842</FONT> public String getExpandedElementName(Element elem)<a name="line.842"></a>
<FONT color="green">843</FONT> {<a name="line.843"></a>
<FONT color="green">844</FONT> <a name="line.844"></a>
<FONT color="green">845</FONT> String namespace = getNamespaceOfNode(elem);<a name="line.845"></a>
<FONT color="green">846</FONT> <a name="line.846"></a>
<FONT color="green">847</FONT> return (null != namespace)<a name="line.847"></a>
<FONT color="green">848</FONT> ? namespace + ":" + getLocalNameOfNode(elem)<a name="line.848"></a>
<FONT color="green">849</FONT> : getLocalNameOfNode(elem);<a name="line.849"></a>
<FONT color="green">850</FONT> }<a name="line.850"></a>
<FONT color="green">851</FONT> <a name="line.851"></a>
<FONT color="green">852</FONT> /**<a name="line.852"></a>
<FONT color="green">853</FONT> * Returns the attribute name with the namespace prefix (if any) replaced<a name="line.853"></a>
<FONT color="green">854</FONT> * by the Namespace URI it was bound to. This is not a standard <a name="line.854"></a>
<FONT color="green">855</FONT> * representation of a node name, but it allows convenient <a name="line.855"></a>
<FONT color="green">856</FONT> * single-string comparison of the "universal" names of two nodes.<a name="line.856"></a>
<FONT color="green">857</FONT> *<a name="line.857"></a>
<FONT color="green">858</FONT> * @param attr Attr to be examined<a name="line.858"></a>
<FONT color="green">859</FONT> *<a name="line.859"></a>
<FONT color="green">860</FONT> * @return String in the form "namespaceURI:localname" if the node<a name="line.860"></a>
<FONT color="green">861</FONT> * belongs to a namespace, or simply "localname" if it doesn't.<a name="line.861"></a>
<FONT color="green">862</FONT> * @see #getExpandedElementName<a name="line.862"></a>
<FONT color="green">863</FONT> */<a name="line.863"></a>
<FONT color="green">864</FONT> public String getExpandedAttributeName(Attr attr)<a name="line.864"></a>
<FONT color="green">865</FONT> {<a name="line.865"></a>
<FONT color="green">866</FONT> <a name="line.866"></a>
<FONT color="green">867</FONT> String namespace = getNamespaceOfNode(attr);<a name="line.867"></a>
<FONT color="green">868</FONT> <a name="line.868"></a>
<FONT color="green">869</FONT> return (null != namespace)<a name="line.869"></a>
<FONT color="green">870</FONT> ? namespace + ":" + getLocalNameOfNode(attr)<a name="line.870"></a>
<FONT color="green">871</FONT> : getLocalNameOfNode(attr);<a name="line.871"></a>
<FONT color="green">872</FONT> }<a name="line.872"></a>
<FONT color="green">873</FONT> <a name="line.873"></a>
<FONT color="green">874</FONT> //==========================================================<a name="line.874"></a>
<FONT color="green">875</FONT> // SECTION: DOM Helper Functions<a name="line.875"></a>
<FONT color="green">876</FONT> //==========================================================<a name="line.876"></a>
<FONT color="green">877</FONT> <a name="line.877"></a>
<FONT color="green">878</FONT> /**<a name="line.878"></a>
<FONT color="green">879</FONT> * Tell if the node is ignorable whitespace. Note that this can<a name="line.879"></a>
<FONT color="green">880</FONT> * be determined only in the context of a DTD or other Schema,<a name="line.880"></a>
<FONT color="green">881</FONT> * and that DOM Level 2 has nostandardized DOM API which can<a name="line.881"></a>
<FONT color="green">882</FONT> * return that information.<a name="line.882"></a>
<FONT color="green">883</FONT> * @deprecated<a name="line.883"></a>
<FONT color="green">884</FONT> *<a name="line.884"></a>
<FONT color="green">885</FONT> * @param node Node to be examined<a name="line.885"></a>
<FONT color="green">886</FONT> *<a name="line.886"></a>
<FONT color="green">887</FONT> * @return CURRENTLY HARDCODED TO FALSE, but should return true if<a name="line.887"></a>
<FONT color="green">888</FONT> * and only if the node is of type Text, contains only whitespace,<a name="line.888"></a>
<FONT color="green">889</FONT> * and does not appear as part of the #PCDATA content of an element.<a name="line.889"></a>
<FONT color="green">890</FONT> * (Note that determining this last may require allowing for <a name="line.890"></a>
<FONT color="green">891</FONT> * Entity References.)<a name="line.891"></a>
<FONT color="green">892</FONT> */<a name="line.892"></a>
<FONT color="green">893</FONT> public boolean isIgnorableWhitespace(Text node)<a name="line.893"></a>
<FONT color="green">894</FONT> {<a name="line.894"></a>
<FONT color="green">895</FONT> <a name="line.895"></a>
<FONT color="green">896</FONT> boolean isIgnorable = false; // return value<a name="line.896"></a>
<FONT color="green">897</FONT> <a name="line.897"></a>
<FONT color="green">898</FONT> // TODO: I can probably do something to figure out if this <a name="line.898"></a>
<FONT color="green">899</FONT> // space is ignorable from just the information in<a name="line.899"></a>
<FONT color="green">900</FONT> // the DOM tree.<a name="line.900"></a>
<FONT color="green">901</FONT> // -- You need to be able to distinguish whitespace<a name="line.901"></a>
<FONT color="green">902</FONT> // that is #PCDATA from whitespace that isn't. That requires<a name="line.902"></a>
<FONT color="green">903</FONT> // DTD support, which won't be standardized until DOM Level 3.<a name="line.903"></a>
<FONT color="green">904</FONT> return isIgnorable;<a name="line.904"></a>
<FONT color="green">905</FONT> }<a name="line.905"></a>
<FONT color="green">906</FONT> <a name="line.906"></a>
<FONT color="green">907</FONT> /**<a name="line.907"></a>
<FONT color="green">908</FONT> * Get the first unparented node in the ancestor chain.<a name="line.908"></a>
<FONT color="green">909</FONT> * @deprecated<a name="line.909"></a>
<FONT color="green">910</FONT> *<a name="line.910"></a>
<FONT color="green">911</FONT> * @param node Starting node, to specify which chain to chase<a name="line.911"></a>
<FONT color="green">912</FONT> *<a name="line.912"></a>
<FONT color="green">913</FONT> * @return the topmost ancestor.<a name="line.913"></a>
<FONT color="green">914</FONT> */<a name="line.914"></a>
<FONT color="green">915</FONT> public Node getRoot(Node node)<a name="line.915"></a>
<FONT color="green">916</FONT> {<a name="line.916"></a>
<FONT color="green">917</FONT> <a name="line.917"></a>
<FONT color="green">918</FONT> Node root = null;<a name="line.918"></a>
<FONT color="green">919</FONT> <a name="line.919"></a>
<FONT color="green">920</FONT> while (node != null)<a name="line.920"></a>
<FONT color="green">921</FONT> {<a name="line.921"></a>
<FONT color="green">922</FONT> root = node;<a name="line.922"></a>
<FONT color="green">923</FONT> node = getParentOfNode(node);<a name="line.923"></a>
<FONT color="green">924</FONT> }<a name="line.924"></a>
<FONT color="green">925</FONT> <a name="line.925"></a>
<FONT color="green">926</FONT> return root;<a name="line.926"></a>
<FONT color="green">927</FONT> }<a name="line.927"></a>
<FONT color="green">928</FONT> <a name="line.928"></a>
<FONT color="green">929</FONT> /**<a name="line.929"></a>
<FONT color="green">930</FONT> * Get the root node of the document tree, regardless of<a name="line.930"></a>
<FONT color="green">931</FONT> * whether or not the node passed in is a document node.<a name="line.931"></a>
<FONT color="green">932</FONT> * &lt;p&gt;<a name="line.932"></a>
<FONT color="green">933</FONT> * TODO: This doesn't handle DocumentFragments or "orphaned" subtrees<a name="line.933"></a>
<FONT color="green">934</FONT> * -- it's currently returning ownerDocument even when the tree is<a name="line.934"></a>
<FONT color="green">935</FONT> * not actually part of the main Document tree. We should either<a name="line.935"></a>
<FONT color="green">936</FONT> * rewrite the description to say that it finds the Document node,<a name="line.936"></a>
<FONT color="green">937</FONT> * or change the code to walk up the ancestor chain.<a name="line.937"></a>
<FONT color="green">938</FONT> <a name="line.938"></a>
<FONT color="green">939</FONT> *<a name="line.939"></a>
<FONT color="green">940</FONT> * @param n Node to be examined<a name="line.940"></a>
<FONT color="green">941</FONT> *<a name="line.941"></a>
<FONT color="green">942</FONT> * @return the Document node. Note that this is not the correct answer<a name="line.942"></a>
<FONT color="green">943</FONT> * if n was (or was a child of) a DocumentFragment or an orphaned node,<a name="line.943"></a>
<FONT color="green">944</FONT> * as can arise if the DOM has been edited rather than being generated<a name="line.944"></a>
<FONT color="green">945</FONT> * by a parser.<a name="line.945"></a>
<FONT color="green">946</FONT> */<a name="line.946"></a>
<FONT color="green">947</FONT> public Node getRootNode(Node n)<a name="line.947"></a>
<FONT color="green">948</FONT> {<a name="line.948"></a>
<FONT color="green">949</FONT> int nt = n.getNodeType();<a name="line.949"></a>
<FONT color="green">950</FONT> return ( (Node.DOCUMENT_NODE == nt) || (Node.DOCUMENT_FRAGMENT_NODE == nt) ) <a name="line.950"></a>
<FONT color="green">951</FONT> ? n : n.getOwnerDocument();<a name="line.951"></a>
<FONT color="green">952</FONT> }<a name="line.952"></a>
<FONT color="green">953</FONT> <a name="line.953"></a>
<FONT color="green">954</FONT> /**<a name="line.954"></a>
<FONT color="green">955</FONT> * Test whether the given node is a namespace decl node. In DOM Level 2<a name="line.955"></a>
<FONT color="green">956</FONT> * this can be done in a namespace-aware manner, but in Level 1 DOMs<a name="line.956"></a>
<FONT color="green">957</FONT> * it has to be done by testing the node name.<a name="line.957"></a>
<FONT color="green">958</FONT> *<a name="line.958"></a>
<FONT color="green">959</FONT> * @param n Node to be examined.<a name="line.959"></a>
<FONT color="green">960</FONT> *<a name="line.960"></a>
<FONT color="green">961</FONT> * @return boolean -- true iff the node is an Attr whose name is <a name="line.961"></a>
<FONT color="green">962</FONT> * "xmlns" or has the "xmlns:" prefix.<a name="line.962"></a>
<FONT color="green">963</FONT> */<a name="line.963"></a>
<FONT color="green">964</FONT> public boolean isNamespaceNode(Node n)<a name="line.964"></a>
<FONT color="green">965</FONT> {<a name="line.965"></a>
<FONT color="green">966</FONT> <a name="line.966"></a>
<FONT color="green">967</FONT> if (Node.ATTRIBUTE_NODE == n.getNodeType())<a name="line.967"></a>
<FONT color="green">968</FONT> {<a name="line.968"></a>
<FONT color="green">969</FONT> String attrName = n.getNodeName();<a name="line.969"></a>
<FONT color="green">970</FONT> <a name="line.970"></a>
<FONT color="green">971</FONT> return (attrName.startsWith("xmlns:") || attrName.equals("xmlns"));<a name="line.971"></a>
<FONT color="green">972</FONT> }<a name="line.972"></a>
<FONT color="green">973</FONT> <a name="line.973"></a>
<FONT color="green">974</FONT> return false;<a name="line.974"></a>
<FONT color="green">975</FONT> }<a name="line.975"></a>
<FONT color="green">976</FONT> <a name="line.976"></a>
<FONT color="green">977</FONT> /**<a name="line.977"></a>
<FONT color="green">978</FONT> * Obtain the XPath-model parent of a DOM node -- ownerElement for Attrs,<a name="line.978"></a>
<FONT color="green">979</FONT> * parent for other nodes. <a name="line.979"></a>
<FONT color="green">980</FONT> * &lt;p&gt;<a name="line.980"></a>
<FONT color="green">981</FONT> * Background: The DOM believes that you must be your Parent's<a name="line.981"></a>
<FONT color="green">982</FONT> * Child, and thus Attrs don't have parents. XPath said that Attrs<a name="line.982"></a>
<FONT color="green">983</FONT> * do have their owning Element as their parent. This function<a name="line.983"></a>
<FONT color="green">984</FONT> * bridges the difference, either by using the DOM Level 2 ownerElement<a name="line.984"></a>
<FONT color="green">985</FONT> * function or by using a "silly and expensive function" in Level 1<a name="line.985"></a>
<FONT color="green">986</FONT> * DOMs.<a name="line.986"></a>
<FONT color="green">987</FONT> * &lt;p&gt;<a name="line.987"></a>
<FONT color="green">988</FONT> * (There's some discussion of future DOMs generalizing ownerElement <a name="line.988"></a>
<FONT color="green">989</FONT> * into ownerNode and making it work on all types of nodes. This<a name="line.989"></a>
<FONT color="green">990</FONT> * still wouldn't help the users of Level 1 or Level 2 DOMs)<a name="line.990"></a>
<FONT color="green">991</FONT> * &lt;p&gt;<a name="line.991"></a>
<FONT color="green">992</FONT> *<a name="line.992"></a>
<FONT color="green">993</FONT> * @param node Node whose XPath parent we want to obtain<a name="line.993"></a>
<FONT color="green">994</FONT> *<a name="line.994"></a>
<FONT color="green">995</FONT> * @return the parent of the node, or the ownerElement if it's an<a name="line.995"></a>
<FONT color="green">996</FONT> * Attr node, or null if the node is an orphan.<a name="line.996"></a>
<FONT color="green">997</FONT> *<a name="line.997"></a>
<FONT color="green">998</FONT> * @throws RuntimeException if the Document has no root element.<a name="line.998"></a>
<FONT color="green">999</FONT> * This can't arise if the Document was created<a name="line.999"></a>
<FONT color="green">1000</FONT> * via the DOM Level 2 factory methods, but is possible if other<a name="line.1000"></a>
<FONT color="green">1001</FONT> * mechanisms were used to obtain it<a name="line.1001"></a>
<FONT color="green">1002</FONT> */<a name="line.1002"></a>
<FONT color="green">1003</FONT> public static Node getParentOfNode(Node node) throws RuntimeException<a name="line.1003"></a>
<FONT color="green">1004</FONT> {<a name="line.1004"></a>
<FONT color="green">1005</FONT> Node parent;<a name="line.1005"></a>
<FONT color="green">1006</FONT> short nodeType = node.getNodeType();<a name="line.1006"></a>
<FONT color="green">1007</FONT> <a name="line.1007"></a>
<FONT color="green">1008</FONT> if (Node.ATTRIBUTE_NODE == nodeType)<a name="line.1008"></a>
<FONT color="green">1009</FONT> {<a name="line.1009"></a>
<FONT color="green">1010</FONT> Document doc = node.getOwnerDocument();<a name="line.1010"></a>
<FONT color="green">1011</FONT> /*<a name="line.1011"></a>
<FONT color="green">1012</FONT> TBD:<a name="line.1012"></a>
<FONT color="green">1013</FONT> if(null == doc)<a name="line.1013"></a>
<FONT color="green">1014</FONT> {<a name="line.1014"></a>
<FONT color="green">1015</FONT> throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_CHILD_HAS_NO_OWNER_DOCUMENT, null));//"Attribute child does not have an owner document!");<a name="line.1015"></a>
<FONT color="green">1016</FONT> }<a name="line.1016"></a>
<FONT color="green">1017</FONT> */<a name="line.1017"></a>
<FONT color="green">1018</FONT> <a name="line.1018"></a>
<FONT color="green">1019</FONT> // Given how expensive the tree walk may be, we should first ask <a name="line.1019"></a>
<FONT color="green">1020</FONT> // whether this DOM can answer the question for us. The additional<a name="line.1020"></a>
<FONT color="green">1021</FONT> // test does slow down Level 1 DOMs slightly. DOMHelper2, which<a name="line.1021"></a>
<FONT color="green">1022</FONT> // is currently specialized for Xerces, assumes it can use the<a name="line.1022"></a>
<FONT color="green">1023</FONT> // Level 2 solution. We might want to have an intermediate stage,<a name="line.1023"></a>
<FONT color="green">1024</FONT> // which would assume DOM Level 2 but not assume Xerces.<a name="line.1024"></a>
<FONT color="green">1025</FONT> //<a name="line.1025"></a>
<FONT color="green">1026</FONT> // (Shouldn't have to check whether impl is null in a compliant DOM,<a name="line.1026"></a>
<FONT color="green">1027</FONT> // but let's be paranoid for a moment...)<a name="line.1027"></a>
<FONT color="green">1028</FONT> DOMImplementation impl=doc.getImplementation();<a name="line.1028"></a>
<FONT color="green">1029</FONT> if(impl!=null &amp;&amp; impl.hasFeature("Core","2.0"))<a name="line.1029"></a>
<FONT color="green">1030</FONT> {<a name="line.1030"></a>
<FONT color="green">1031</FONT> parent=((Attr)node).getOwnerElement();<a name="line.1031"></a>
<FONT color="green">1032</FONT> return parent;<a name="line.1032"></a>
<FONT color="green">1033</FONT> }<a name="line.1033"></a>
<FONT color="green">1034</FONT> <a name="line.1034"></a>
<FONT color="green">1035</FONT> // DOM Level 1 solution, as fallback. Hugely expensive. <a name="line.1035"></a>
<FONT color="green">1036</FONT> <a name="line.1036"></a>
<FONT color="green">1037</FONT> Element rootElem = doc.getDocumentElement();<a name="line.1037"></a>
<FONT color="green">1038</FONT> <a name="line.1038"></a>
<FONT color="green">1039</FONT> if (null == rootElem)<a name="line.1039"></a>
<FONT color="green">1040</FONT> {<a name="line.1040"></a>
<FONT color="green">1041</FONT> throw new RuntimeException(<a name="line.1041"></a>
<FONT color="green">1042</FONT> XMLMessages.createXMLMessage(<a name="line.1042"></a>
<FONT color="green">1043</FONT> XMLErrorResources.ER_CHILD_HAS_NO_OWNER_DOCUMENT_ELEMENT,<a name="line.1043"></a>
<FONT color="green">1044</FONT> null)); //"Attribute child does not have an owner document element!");<a name="line.1044"></a>
<FONT color="green">1045</FONT> }<a name="line.1045"></a>
<FONT color="green">1046</FONT> <a name="line.1046"></a>
<FONT color="green">1047</FONT> parent = locateAttrParent(rootElem, node);<a name="line.1047"></a>
<FONT color="green">1048</FONT> <a name="line.1048"></a>
<FONT color="green">1049</FONT> }<a name="line.1049"></a>
<FONT color="green">1050</FONT> else<a name="line.1050"></a>
<FONT color="green">1051</FONT> {<a name="line.1051"></a>
<FONT color="green">1052</FONT> parent = node.getParentNode();<a name="line.1052"></a>
<FONT color="green">1053</FONT> <a name="line.1053"></a>
<FONT color="green">1054</FONT> // if((Node.DOCUMENT_NODE != nodeType) &amp;&amp; (null == parent))<a name="line.1054"></a>
<FONT color="green">1055</FONT> // {<a name="line.1055"></a>
<FONT color="green">1056</FONT> // throw new RuntimeException("Child does not have parent!");<a name="line.1056"></a>
<FONT color="green">1057</FONT> // }<a name="line.1057"></a>
<FONT color="green">1058</FONT> }<a name="line.1058"></a>
<FONT color="green">1059</FONT> <a name="line.1059"></a>
<FONT color="green">1060</FONT> return parent;<a name="line.1060"></a>
<FONT color="green">1061</FONT> }<a name="line.1061"></a>
<FONT color="green">1062</FONT> <a name="line.1062"></a>
<FONT color="green">1063</FONT> /**<a name="line.1063"></a>
<FONT color="green">1064</FONT> * Given an ID, return the element. This can work only if the document<a name="line.1064"></a>
<FONT color="green">1065</FONT> * is interpreted in the context of a DTD or Schema, since otherwise<a name="line.1065"></a>
<FONT color="green">1066</FONT> * we don't know which attributes are or aren't IDs.<a name="line.1066"></a>
<FONT color="green">1067</FONT> * &lt;p&gt;<a name="line.1067"></a>
<FONT color="green">1068</FONT> * Note that DOM Level 1 had no ability to retrieve this information.<a name="line.1068"></a>
<FONT color="green">1069</FONT> * DOM Level 2 introduced it but does not promise that it will be<a name="line.1069"></a>
<FONT color="green">1070</FONT> * supported in all DOMs; those which can't support it will always<a name="line.1070"></a>
<FONT color="green">1071</FONT> * return null.<a name="line.1071"></a>
<FONT color="green">1072</FONT> * &lt;p&gt;<a name="line.1072"></a>
<FONT color="green">1073</FONT> * TODO: getElementByID is currently unimplemented. Support DOM Level 2?<a name="line.1073"></a>
<FONT color="green">1074</FONT> *<a name="line.1074"></a>
<FONT color="green">1075</FONT> * @param id The unique identifier to be searched for.<a name="line.1075"></a>
<FONT color="green">1076</FONT> * @param doc The document to search within.<a name="line.1076"></a>
<FONT color="green">1077</FONT> * @return CURRENTLY HARDCODED TO NULL, but it should be:<a name="line.1077"></a>
<FONT color="green">1078</FONT> * The node which has this unique identifier, or null if there<a name="line.1078"></a>
<FONT color="green">1079</FONT> * is no such node or this DOM can't reliably recognize it.<a name="line.1079"></a>
<FONT color="green">1080</FONT> */<a name="line.1080"></a>
<FONT color="green">1081</FONT> public Element getElementByID(String id, Document doc)<a name="line.1081"></a>
<FONT color="green">1082</FONT> {<a name="line.1082"></a>
<FONT color="green">1083</FONT> return null;<a name="line.1083"></a>
<FONT color="green">1084</FONT> }<a name="line.1084"></a>
<FONT color="green">1085</FONT> <a name="line.1085"></a>
<FONT color="green">1086</FONT> /**<a name="line.1086"></a>
<FONT color="green">1087</FONT> * The getUnparsedEntityURI function returns the URI of the unparsed<a name="line.1087"></a>
<FONT color="green">1088</FONT> * entity with the specified name in the same document as the context<a name="line.1088"></a>
<FONT color="green">1089</FONT> * node (see [3.3 Unparsed Entities]). It returns the empty string if<a name="line.1089"></a>
<FONT color="green">1090</FONT> * there is no such entity.<a name="line.1090"></a>
<FONT color="green">1091</FONT> * &lt;p&gt;<a name="line.1091"></a>
<FONT color="green">1092</FONT> * XML processors may choose to use the System Identifier (if one<a name="line.1092"></a>
<FONT color="green">1093</FONT> * is provided) to resolve the entity, rather than the URI in the<a name="line.1093"></a>
<FONT color="green">1094</FONT> * Public Identifier. The details are dependent on the processor, and<a name="line.1094"></a>
<FONT color="green">1095</FONT> * we would have to support some form of plug-in resolver to handle<a name="line.1095"></a>
<FONT color="green">1096</FONT> * this properly. Currently, we simply return the System Identifier if<a name="line.1096"></a>
<FONT color="green">1097</FONT> * present, and hope that it a usable URI or that our caller can<a name="line.1097"></a>
<FONT color="green">1098</FONT> * map it to one.<a name="line.1098"></a>
<FONT color="green">1099</FONT> * TODO: Resolve Public Identifiers... or consider changing function name.<a name="line.1099"></a>
<FONT color="green">1100</FONT> * &lt;p&gt;<a name="line.1100"></a>
<FONT color="green">1101</FONT> * If we find a relative URI <a name="line.1101"></a>
<FONT color="green">1102</FONT> * reference, XML expects it to be resolved in terms of the base URI <a name="line.1102"></a>
<FONT color="green">1103</FONT> * of the document. The DOM doesn't do that for us, and it isn't <a name="line.1103"></a>
<FONT color="green">1104</FONT> * entirely clear whether that should be done here; currently that's<a name="line.1104"></a>
<FONT color="green">1105</FONT> * pushed up to a higher levelof our application. (Note that DOM Level <a name="line.1105"></a>
<FONT color="green">1106</FONT> * 1 didn't store the document's base URI.)<a name="line.1106"></a>
<FONT color="green">1107</FONT> * TODO: Consider resolving Relative URIs.<a name="line.1107"></a>
<FONT color="green">1108</FONT> * &lt;p&gt;<a name="line.1108"></a>
<FONT color="green">1109</FONT> * (The DOM's statement that "An XML processor may choose to<a name="line.1109"></a>
<FONT color="green">1110</FONT> * completely expand entities before the structure model is passed<a name="line.1110"></a>
<FONT color="green">1111</FONT> * to the DOM" refers only to parsed entities, not unparsed, and hence<a name="line.1111"></a>
<FONT color="green">1112</FONT> * doesn't affect this function.)<a name="line.1112"></a>
<FONT color="green">1113</FONT> *<a name="line.1113"></a>
<FONT color="green">1114</FONT> * @param name A string containing the Entity Name of the unparsed<a name="line.1114"></a>
<FONT color="green">1115</FONT> * entity.<a name="line.1115"></a>
<FONT color="green">1116</FONT> * @param doc Document node for the document to be searched.<a name="line.1116"></a>
<FONT color="green">1117</FONT> *<a name="line.1117"></a>
<FONT color="green">1118</FONT> * @return String containing the URI of the Unparsed Entity, or an<a name="line.1118"></a>
<FONT color="green">1119</FONT> * empty string if no such entity exists.<a name="line.1119"></a>
<FONT color="green">1120</FONT> */<a name="line.1120"></a>
<FONT color="green">1121</FONT> public String getUnparsedEntityURI(String name, Document doc)<a name="line.1121"></a>
<FONT color="green">1122</FONT> {<a name="line.1122"></a>
<FONT color="green">1123</FONT> <a name="line.1123"></a>
<FONT color="green">1124</FONT> String url = "";<a name="line.1124"></a>
<FONT color="green">1125</FONT> DocumentType doctype = doc.getDoctype();<a name="line.1125"></a>
<FONT color="green">1126</FONT> <a name="line.1126"></a>
<FONT color="green">1127</FONT> if (null != doctype)<a name="line.1127"></a>
<FONT color="green">1128</FONT> {<a name="line.1128"></a>
<FONT color="green">1129</FONT> NamedNodeMap entities = doctype.getEntities();<a name="line.1129"></a>
<FONT color="green">1130</FONT> if(null == entities)<a name="line.1130"></a>
<FONT color="green">1131</FONT> return url;<a name="line.1131"></a>
<FONT color="green">1132</FONT> Entity entity = (Entity) entities.getNamedItem(name);<a name="line.1132"></a>
<FONT color="green">1133</FONT> if(null == entity)<a name="line.1133"></a>
<FONT color="green">1134</FONT> return url;<a name="line.1134"></a>
<FONT color="green">1135</FONT> <a name="line.1135"></a>
<FONT color="green">1136</FONT> String notationName = entity.getNotationName();<a name="line.1136"></a>
<FONT color="green">1137</FONT> <a name="line.1137"></a>
<FONT color="green">1138</FONT> if (null != notationName) // then it's unparsed<a name="line.1138"></a>
<FONT color="green">1139</FONT> {<a name="line.1139"></a>
<FONT color="green">1140</FONT> // The draft says: "The XSLT processor may use the public <a name="line.1140"></a>
<FONT color="green">1141</FONT> // identifier to generate a URI for the entity instead of the URI <a name="line.1141"></a>
<FONT color="green">1142</FONT> // specified in the system identifier. If the XSLT processor does <a name="line.1142"></a>
<FONT color="green">1143</FONT> // not use the public identifier to generate the URI, it must use <a name="line.1143"></a>
<FONT color="green">1144</FONT> // the system identifier; if the system identifier is a relative <a name="line.1144"></a>
<FONT color="green">1145</FONT> // URI, it must be resolved into an absolute URI using the URI of <a name="line.1145"></a>
<FONT color="green">1146</FONT> // the resource containing the entity declaration as the base <a name="line.1146"></a>
<FONT color="green">1147</FONT> // URI [RFC2396]."<a name="line.1147"></a>
<FONT color="green">1148</FONT> // So I'm falling a bit short here.<a name="line.1148"></a>
<FONT color="green">1149</FONT> url = entity.getSystemId();<a name="line.1149"></a>
<FONT color="green">1150</FONT> <a name="line.1150"></a>
<FONT color="green">1151</FONT> if (null == url)<a name="line.1151"></a>
<FONT color="green">1152</FONT> {<a name="line.1152"></a>
<FONT color="green">1153</FONT> url = entity.getPublicId();<a name="line.1153"></a>
<FONT color="green">1154</FONT> }<a name="line.1154"></a>
<FONT color="green">1155</FONT> else<a name="line.1155"></a>
<FONT color="green">1156</FONT> {<a name="line.1156"></a>
<FONT color="green">1157</FONT> // This should be resolved to an absolute URL, but that's hard <a name="line.1157"></a>
<FONT color="green">1158</FONT> // to do from here.<a name="line.1158"></a>
<FONT color="green">1159</FONT> } <a name="line.1159"></a>
<FONT color="green">1160</FONT> }<a name="line.1160"></a>
<FONT color="green">1161</FONT> }<a name="line.1161"></a>
<FONT color="green">1162</FONT> <a name="line.1162"></a>
<FONT color="green">1163</FONT> return url;<a name="line.1163"></a>
<FONT color="green">1164</FONT> }<a name="line.1164"></a>
<FONT color="green">1165</FONT> <a name="line.1165"></a>
<FONT color="green">1166</FONT> /**<a name="line.1166"></a>
<FONT color="green">1167</FONT> * Support for getParentOfNode; walks a DOM tree until it finds<a name="line.1167"></a>
<FONT color="green">1168</FONT> * the Element which owns the Attr. This is hugely expensive, and<a name="line.1168"></a>
<FONT color="green">1169</FONT> * if at all possible you should use the DOM Level 2 Attr.ownerElement()<a name="line.1169"></a>
<FONT color="green">1170</FONT> * method instead.<a name="line.1170"></a>
<FONT color="green">1171</FONT> * &lt;p&gt;<a name="line.1171"></a>
<FONT color="green">1172</FONT> * The DOM Level 1 developers expected that folks would keep track<a name="line.1172"></a>
<FONT color="green">1173</FONT> * of the last Element they'd seen and could recover the info from<a name="line.1173"></a>
<FONT color="green">1174</FONT> * that source. Obviously that doesn't work very well if the only<a name="line.1174"></a>
<FONT color="green">1175</FONT> * information you've been presented with is the Attr. The DOM Level 2<a name="line.1175"></a>
<FONT color="green">1176</FONT> * getOwnerElement() method fixes that, but only for Level 2 and<a name="line.1176"></a>
<FONT color="green">1177</FONT> * later DOMs.<a name="line.1177"></a>
<FONT color="green">1178</FONT> *<a name="line.1178"></a>
<FONT color="green">1179</FONT> * @param elem Element whose subtree is to be searched for this Attr<a name="line.1179"></a>
<FONT color="green">1180</FONT> * @param attr Attr whose owner is to be located.<a name="line.1180"></a>
<FONT color="green">1181</FONT> *<a name="line.1181"></a>
<FONT color="green">1182</FONT> * @return the first Element whose attribute list includes the provided<a name="line.1182"></a>
<FONT color="green">1183</FONT> * attr. In modern DOMs, this will also be the only such Element. (Early<a name="line.1183"></a>
<FONT color="green">1184</FONT> * DOMs had some hope that Attrs might be sharable, but this idea has<a name="line.1184"></a>
<FONT color="green">1185</FONT> * been abandoned.)<a name="line.1185"></a>
<FONT color="green">1186</FONT> */<a name="line.1186"></a>
<FONT color="green">1187</FONT> private static Node locateAttrParent(Element elem, Node attr)<a name="line.1187"></a>
<FONT color="green">1188</FONT> {<a name="line.1188"></a>
<FONT color="green">1189</FONT> <a name="line.1189"></a>
<FONT color="green">1190</FONT> Node parent = null;<a name="line.1190"></a>
<FONT color="green">1191</FONT> <a name="line.1191"></a>
<FONT color="green">1192</FONT> // This should only be called for Level 1 DOMs, so we don't have to<a name="line.1192"></a>
<FONT color="green">1193</FONT> // worry about namespace issues. In later levels, it's possible<a name="line.1193"></a>
<FONT color="green">1194</FONT> // for a DOM to have two Attrs with the same NodeName but<a name="line.1194"></a>
<FONT color="green">1195</FONT> // different namespaces, and we'd need to get getAttributeNodeNS...<a name="line.1195"></a>
<FONT color="green">1196</FONT> // but later levels also have Attr.getOwnerElement.<a name="line.1196"></a>
<FONT color="green">1197</FONT> Attr check=elem.getAttributeNode(attr.getNodeName());<a name="line.1197"></a>
<FONT color="green">1198</FONT> if(check==attr)<a name="line.1198"></a>
<FONT color="green">1199</FONT> parent = elem;<a name="line.1199"></a>
<FONT color="green">1200</FONT> <a name="line.1200"></a>
<FONT color="green">1201</FONT> if (null == parent)<a name="line.1201"></a>
<FONT color="green">1202</FONT> {<a name="line.1202"></a>
<FONT color="green">1203</FONT> for (Node node = elem.getFirstChild(); null != node;<a name="line.1203"></a>
<FONT color="green">1204</FONT> node = node.getNextSibling())<a name="line.1204"></a>
<FONT color="green">1205</FONT> {<a name="line.1205"></a>
<FONT color="green">1206</FONT> if (Node.ELEMENT_NODE == node.getNodeType())<a name="line.1206"></a>
<FONT color="green">1207</FONT> {<a name="line.1207"></a>
<FONT color="green">1208</FONT> parent = locateAttrParent((Element) node, attr);<a name="line.1208"></a>
<FONT color="green">1209</FONT> <a name="line.1209"></a>
<FONT color="green">1210</FONT> if (null != parent)<a name="line.1210"></a>
<FONT color="green">1211</FONT> break;<a name="line.1211"></a>
<FONT color="green">1212</FONT> }<a name="line.1212"></a>
<FONT color="green">1213</FONT> }<a name="line.1213"></a>
<FONT color="green">1214</FONT> }<a name="line.1214"></a>
<FONT color="green">1215</FONT> <a name="line.1215"></a>
<FONT color="green">1216</FONT> return parent;<a name="line.1216"></a>
<FONT color="green">1217</FONT> }<a name="line.1217"></a>
<FONT color="green">1218</FONT> <a name="line.1218"></a>
<FONT color="green">1219</FONT> /**<a name="line.1219"></a>
<FONT color="green">1220</FONT> * The factory object used for creating nodes<a name="line.1220"></a>
<FONT color="green">1221</FONT> * in the result tree.<a name="line.1221"></a>
<FONT color="green">1222</FONT> */<a name="line.1222"></a>
<FONT color="green">1223</FONT> protected Document m_DOMFactory = null;<a name="line.1223"></a>
<FONT color="green">1224</FONT> <a name="line.1224"></a>
<FONT color="green">1225</FONT> /**<a name="line.1225"></a>
<FONT color="green">1226</FONT> * Store the factory object required to create DOM nodes<a name="line.1226"></a>
<FONT color="green">1227</FONT> * in the result tree. In fact, that's just the result tree's<a name="line.1227"></a>
<FONT color="green">1228</FONT> * Document node...<a name="line.1228"></a>
<FONT color="green">1229</FONT> *<a name="line.1229"></a>
<FONT color="green">1230</FONT> * @param domFactory The DOM Document Node within whose context<a name="line.1230"></a>
<FONT color="green">1231</FONT> * the result tree will be built.<a name="line.1231"></a>
<FONT color="green">1232</FONT> */<a name="line.1232"></a>
<FONT color="green">1233</FONT> public void setDOMFactory(Document domFactory)<a name="line.1233"></a>
<FONT color="green">1234</FONT> {<a name="line.1234"></a>
<FONT color="green">1235</FONT> this.m_DOMFactory = domFactory;<a name="line.1235"></a>
<FONT color="green">1236</FONT> }<a name="line.1236"></a>
<FONT color="green">1237</FONT> <a name="line.1237"></a>
<FONT color="green">1238</FONT> /**<a name="line.1238"></a>
<FONT color="green">1239</FONT> * Retrieve the factory object required to create DOM nodes<a name="line.1239"></a>
<FONT color="green">1240</FONT> * in the result tree.<a name="line.1240"></a>
<FONT color="green">1241</FONT> *<a name="line.1241"></a>
<FONT color="green">1242</FONT> * @return The result tree's DOM Document Node.<a name="line.1242"></a>
<FONT color="green">1243</FONT> */<a name="line.1243"></a>
<FONT color="green">1244</FONT> public Document getDOMFactory()<a name="line.1244"></a>
<FONT color="green">1245</FONT> {<a name="line.1245"></a>
<FONT color="green">1246</FONT> <a name="line.1246"></a>
<FONT color="green">1247</FONT> if (null == this.m_DOMFactory)<a name="line.1247"></a>
<FONT color="green">1248</FONT> {<a name="line.1248"></a>
<FONT color="green">1249</FONT> this.m_DOMFactory = createDocument();<a name="line.1249"></a>
<FONT color="green">1250</FONT> }<a name="line.1250"></a>
<FONT color="green">1251</FONT> <a name="line.1251"></a>
<FONT color="green">1252</FONT> return this.m_DOMFactory;<a name="line.1252"></a>
<FONT color="green">1253</FONT> }<a name="line.1253"></a>
<FONT color="green">1254</FONT> <a name="line.1254"></a>
<FONT color="green">1255</FONT> /**<a name="line.1255"></a>
<FONT color="green">1256</FONT> * Get the textual contents of the node. See<a name="line.1256"></a>
<FONT color="green">1257</FONT> * getNodeData(Node,FastStringBuffer) for discussion of how<a name="line.1257"></a>
<FONT color="green">1258</FONT> * whitespace nodes are handled.<a name="line.1258"></a>
<FONT color="green">1259</FONT> *<a name="line.1259"></a>
<FONT color="green">1260</FONT> * @param node DOM Node to be examined<a name="line.1260"></a>
<FONT color="green">1261</FONT> * @return String containing a concatenation of all the <a name="line.1261"></a>
<FONT color="green">1262</FONT> * textual content within that node. <a name="line.1262"></a>
<FONT color="green">1263</FONT> * @see #getNodeData(Node,FastStringBuffer)<a name="line.1263"></a>
<FONT color="green">1264</FONT> * <a name="line.1264"></a>
<FONT color="green">1265</FONT> */<a name="line.1265"></a>
<FONT color="green">1266</FONT> public static String getNodeData(Node node)<a name="line.1266"></a>
<FONT color="green">1267</FONT> {<a name="line.1267"></a>
<FONT color="green">1268</FONT> <a name="line.1268"></a>
<FONT color="green">1269</FONT> FastStringBuffer buf = StringBufferPool.get();<a name="line.1269"></a>
<FONT color="green">1270</FONT> String s;<a name="line.1270"></a>
<FONT color="green">1271</FONT> <a name="line.1271"></a>
<FONT color="green">1272</FONT> try<a name="line.1272"></a>
<FONT color="green">1273</FONT> {<a name="line.1273"></a>
<FONT color="green">1274</FONT> getNodeData(node, buf);<a name="line.1274"></a>
<FONT color="green">1275</FONT> <a name="line.1275"></a>
<FONT color="green">1276</FONT> s = (buf.length() &gt; 0) ? buf.toString() : "";<a name="line.1276"></a>
<FONT color="green">1277</FONT> }<a name="line.1277"></a>
<FONT color="green">1278</FONT> finally<a name="line.1278"></a>
<FONT color="green">1279</FONT> {<a name="line.1279"></a>
<FONT color="green">1280</FONT> StringBufferPool.free(buf);<a name="line.1280"></a>
<FONT color="green">1281</FONT> }<a name="line.1281"></a>
<FONT color="green">1282</FONT> <a name="line.1282"></a>
<FONT color="green">1283</FONT> return s;<a name="line.1283"></a>
<FONT color="green">1284</FONT> }<a name="line.1284"></a>
<FONT color="green">1285</FONT> <a name="line.1285"></a>
<FONT color="green">1286</FONT> /**<a name="line.1286"></a>
<FONT color="green">1287</FONT> * Retrieve the text content of a DOM subtree, appending it into a<a name="line.1287"></a>
<FONT color="green">1288</FONT> * user-supplied FastStringBuffer object. Note that attributes are<a name="line.1288"></a>
<FONT color="green">1289</FONT> * not considered part of the content of an element.<a name="line.1289"></a>
<FONT color="green">1290</FONT> * &lt;p&gt;<a name="line.1290"></a>
<FONT color="green">1291</FONT> * There are open questions regarding whitespace stripping. <a name="line.1291"></a>
<FONT color="green">1292</FONT> * Currently we make no special effort in that regard, since the standard<a name="line.1292"></a>
<FONT color="green">1293</FONT> * DOM doesn't yet provide DTD-based information to distinguish<a name="line.1293"></a>
<FONT color="green">1294</FONT> * whitespace-in-element-context from genuine #PCDATA. Note that we<a name="line.1294"></a>
<FONT color="green">1295</FONT> * should probably also consider xml:space if/when we address this.<a name="line.1295"></a>
<FONT color="green">1296</FONT> * DOM Level 3 may solve the problem for us.<a name="line.1296"></a>
<FONT color="green">1297</FONT> *<a name="line.1297"></a>
<FONT color="green">1298</FONT> * @param node Node whose subtree is to be walked, gathering the<a name="line.1298"></a>
<FONT color="green">1299</FONT> * contents of all Text or CDATASection nodes.<a name="line.1299"></a>
<FONT color="green">1300</FONT> * @param buf FastStringBuffer into which the contents of the text<a name="line.1300"></a>
<FONT color="green">1301</FONT> * nodes are to be concatenated.<a name="line.1301"></a>
<FONT color="green">1302</FONT> */<a name="line.1302"></a>
<FONT color="green">1303</FONT> public static void getNodeData(Node node, FastStringBuffer buf)<a name="line.1303"></a>
<FONT color="green">1304</FONT> {<a name="line.1304"></a>
<FONT color="green">1305</FONT> <a name="line.1305"></a>
<FONT color="green">1306</FONT> switch (node.getNodeType())<a name="line.1306"></a>
<FONT color="green">1307</FONT> {<a name="line.1307"></a>
<FONT color="green">1308</FONT> case Node.DOCUMENT_FRAGMENT_NODE :<a name="line.1308"></a>
<FONT color="green">1309</FONT> case Node.DOCUMENT_NODE :<a name="line.1309"></a>
<FONT color="green">1310</FONT> case Node.ELEMENT_NODE :<a name="line.1310"></a>
<FONT color="green">1311</FONT> {<a name="line.1311"></a>
<FONT color="green">1312</FONT> for (Node child = node.getFirstChild(); null != child;<a name="line.1312"></a>
<FONT color="green">1313</FONT> child = child.getNextSibling())<a name="line.1313"></a>
<FONT color="green">1314</FONT> {<a name="line.1314"></a>
<FONT color="green">1315</FONT> getNodeData(child, buf);<a name="line.1315"></a>
<FONT color="green">1316</FONT> }<a name="line.1316"></a>
<FONT color="green">1317</FONT> }<a name="line.1317"></a>
<FONT color="green">1318</FONT> break;<a name="line.1318"></a>
<FONT color="green">1319</FONT> case Node.TEXT_NODE :<a name="line.1319"></a>
<FONT color="green">1320</FONT> case Node.CDATA_SECTION_NODE :<a name="line.1320"></a>
<FONT color="green">1321</FONT> buf.append(node.getNodeValue());<a name="line.1321"></a>
<FONT color="green">1322</FONT> break;<a name="line.1322"></a>
<FONT color="green">1323</FONT> case Node.ATTRIBUTE_NODE :<a name="line.1323"></a>
<FONT color="green">1324</FONT> buf.append(node.getNodeValue());<a name="line.1324"></a>
<FONT color="green">1325</FONT> break;<a name="line.1325"></a>
<FONT color="green">1326</FONT> case Node.PROCESSING_INSTRUCTION_NODE :<a name="line.1326"></a>
<FONT color="green">1327</FONT> // warning(XPATHErrorResources.WG_PARSING_AND_PREPARING); <a name="line.1327"></a>
<FONT color="green">1328</FONT> break;<a name="line.1328"></a>
<FONT color="green">1329</FONT> default :<a name="line.1329"></a>
<FONT color="green">1330</FONT> // ignore<a name="line.1330"></a>
<FONT color="green">1331</FONT> break;<a name="line.1331"></a>
<FONT color="green">1332</FONT> }<a name="line.1332"></a>
<FONT color="green">1333</FONT> }<a name="line.1333"></a>
<FONT color="green">1334</FONT> }<a name="line.1334"></a>
</PRE>
</BODY>
</HTML>