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| <FONT color="green">001</FONT> /*<a name="line.1"></a> |
| <FONT color="green">002</FONT> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <FONT color="green">003</FONT> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <FONT color="green">004</FONT> * distributed with this work for additional information<a name="line.4"></a> |
| <FONT color="green">005</FONT> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <FONT color="green">006</FONT> * to you under the Apache License, Version 2.0 (the "License");<a name="line.6"></a> |
| <FONT color="green">007</FONT> * you may not use this file except in compliance with the License.<a name="line.7"></a> |
| <FONT color="green">008</FONT> * You may obtain a copy of the License at<a name="line.8"></a> |
| <FONT color="green">009</FONT> *<a name="line.9"></a> |
| <FONT color="green">010</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <FONT color="green">011</FONT> *<a name="line.11"></a> |
| <FONT color="green">012</FONT> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <FONT color="green">013</FONT> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <FONT color="green">014</FONT> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <FONT color="green">015</FONT> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <FONT color="green">016</FONT> * limitations under the License.<a name="line.16"></a> |
| <FONT color="green">017</FONT> */<a name="line.17"></a> |
| <FONT color="green">018</FONT> /*<a name="line.18"></a> |
| <FONT color="green">019</FONT> * $Id: Extensions.java 468639 2006-10-28 06:52:33Z minchau $<a name="line.19"></a> |
| <FONT color="green">020</FONT> */<a name="line.20"></a> |
| <FONT color="green">021</FONT> package org.apache.xalan.lib;<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.StringTokenizer;<a name="line.24"></a> |
| <FONT color="green">025</FONT> <a name="line.25"></a> |
| <FONT color="green">026</FONT> import javax.xml.parsers.DocumentBuilder;<a name="line.26"></a> |
| <FONT color="green">027</FONT> import javax.xml.parsers.DocumentBuilderFactory;<a name="line.27"></a> |
| <FONT color="green">028</FONT> import javax.xml.parsers.ParserConfigurationException;<a name="line.28"></a> |
| <FONT color="green">029</FONT> <a name="line.29"></a> |
| <FONT color="green">030</FONT> import org.apache.xalan.extensions.ExpressionContext;<a name="line.30"></a> |
| <FONT color="green">031</FONT> import org.apache.xalan.xslt.EnvironmentCheck;<a name="line.31"></a> |
| <FONT color="green">032</FONT> import org.apache.xpath.NodeSet;<a name="line.32"></a> |
| <FONT color="green">033</FONT> import org.apache.xpath.objects.XBoolean;<a name="line.33"></a> |
| <FONT color="green">034</FONT> import org.apache.xpath.objects.XNumber;<a name="line.34"></a> |
| <FONT color="green">035</FONT> import org.apache.xpath.objects.XObject;<a name="line.35"></a> |
| <FONT color="green">036</FONT> <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.DocumentFragment;<a name="line.38"></a> |
| <FONT color="green">039</FONT> import org.w3c.dom.Node;<a name="line.39"></a> |
| <FONT color="green">040</FONT> import org.w3c.dom.NodeList;<a name="line.40"></a> |
| <FONT color="green">041</FONT> import org.w3c.dom.Text;<a name="line.41"></a> |
| <FONT color="green">042</FONT> import org.w3c.dom.traversal.NodeIterator;<a name="line.42"></a> |
| <FONT color="green">043</FONT> <a name="line.43"></a> |
| <FONT color="green">044</FONT> import org.xml.sax.SAXNotSupportedException;<a name="line.44"></a> |
| <FONT color="green">045</FONT> <a name="line.45"></a> |
| <FONT color="green">046</FONT> /**<a name="line.46"></a> |
| <FONT color="green">047</FONT> * This class contains many of the Xalan-supplied extensions.<a name="line.47"></a> |
| <FONT color="green">048</FONT> * It is accessed by specifying a namespace URI as follows:<a name="line.48"></a> |
| <FONT color="green">049</FONT> * <pre><a name="line.49"></a> |
| <FONT color="green">050</FONT> * xmlns:xalan="http://xml.apache.org/xalan"<a name="line.50"></a> |
| <FONT color="green">051</FONT> * </pre><a name="line.51"></a> |
| <FONT color="green">052</FONT> * @xsl.usage general<a name="line.52"></a> |
| <FONT color="green">053</FONT> */<a name="line.53"></a> |
| <FONT color="green">054</FONT> public class Extensions<a name="line.54"></a> |
| <FONT color="green">055</FONT> {<a name="line.55"></a> |
| <FONT color="green">056</FONT> /**<a name="line.56"></a> |
| <FONT color="green">057</FONT> * Constructor Extensions<a name="line.57"></a> |
| <FONT color="green">058</FONT> *<a name="line.58"></a> |
| <FONT color="green">059</FONT> */<a name="line.59"></a> |
| <FONT color="green">060</FONT> private Extensions(){} // Make sure class cannot be instantiated<a name="line.60"></a> |
| <FONT color="green">061</FONT> <a name="line.61"></a> |
| <FONT color="green">062</FONT> /**<a name="line.62"></a> |
| <FONT color="green">063</FONT> * This method is an extension that implements as a Xalan extension<a name="line.63"></a> |
| <FONT color="green">064</FONT> * the node-set function also found in xt and saxon.<a name="line.64"></a> |
| <FONT color="green">065</FONT> * If the argument is a Result Tree Fragment, then <code>nodeset</code><a name="line.65"></a> |
| <FONT color="green">066</FONT> * returns a node-set consisting of a single root node as described in<a name="line.66"></a> |
| <FONT color="green">067</FONT> * section 11.1 of the XSLT 1.0 Recommendation. If the argument is a<a name="line.67"></a> |
| <FONT color="green">068</FONT> * node-set, <code>nodeset</code> returns a node-set. If the argument<a name="line.68"></a> |
| <FONT color="green">069</FONT> * is a string, number, or boolean, then <code>nodeset</code> returns<a name="line.69"></a> |
| <FONT color="green">070</FONT> * a node-set consisting of a single root node with a single text node<a name="line.70"></a> |
| <FONT color="green">071</FONT> * child that is the result of calling the XPath string() function on the<a name="line.71"></a> |
| <FONT color="green">072</FONT> * passed parameter. If the argument is anything else, then a node-set<a name="line.72"></a> |
| <FONT color="green">073</FONT> * is returned consisting of a single root node with a single text node<a name="line.73"></a> |
| <FONT color="green">074</FONT> * child that is the result of calling the java <code>toString()</code><a name="line.74"></a> |
| <FONT color="green">075</FONT> * method on the passed argument.<a name="line.75"></a> |
| <FONT color="green">076</FONT> * Most of the<a name="line.76"></a> |
| <FONT color="green">077</FONT> * actual work here is done in <code>MethodResolver</code> and<a name="line.77"></a> |
| <FONT color="green">078</FONT> * <code>XRTreeFrag</code>.<a name="line.78"></a> |
| <FONT color="green">079</FONT> * @param myProcessor Context passed by the extension processor<a name="line.79"></a> |
| <FONT color="green">080</FONT> * @param rtf Argument in the stylesheet to the nodeset extension function<a name="line.80"></a> |
| <FONT color="green">081</FONT> *<a name="line.81"></a> |
| <FONT color="green">082</FONT> * NEEDSDOC ($objectName$) @return<a name="line.82"></a> |
| <FONT color="green">083</FONT> */<a name="line.83"></a> |
| <FONT color="green">084</FONT> public static NodeSet nodeset(ExpressionContext myProcessor, Object rtf)<a name="line.84"></a> |
| <FONT color="green">085</FONT> {<a name="line.85"></a> |
| <FONT color="green">086</FONT> <a name="line.86"></a> |
| <FONT color="green">087</FONT> String textNodeValue;<a name="line.87"></a> |
| <FONT color="green">088</FONT> <a name="line.88"></a> |
| <FONT color="green">089</FONT> if (rtf instanceof NodeIterator)<a name="line.89"></a> |
| <FONT color="green">090</FONT> {<a name="line.90"></a> |
| <FONT color="green">091</FONT> return new NodeSet((NodeIterator) rtf);<a name="line.91"></a> |
| <FONT color="green">092</FONT> }<a name="line.92"></a> |
| <FONT color="green">093</FONT> else<a name="line.93"></a> |
| <FONT color="green">094</FONT> {<a name="line.94"></a> |
| <FONT color="green">095</FONT> if (rtf instanceof String)<a name="line.95"></a> |
| <FONT color="green">096</FONT> {<a name="line.96"></a> |
| <FONT color="green">097</FONT> textNodeValue = (String) rtf;<a name="line.97"></a> |
| <FONT color="green">098</FONT> }<a name="line.98"></a> |
| <FONT color="green">099</FONT> else if (rtf instanceof Boolean)<a name="line.99"></a> |
| <FONT color="green">100</FONT> {<a name="line.100"></a> |
| <FONT color="green">101</FONT> textNodeValue = new XBoolean(((Boolean) rtf).booleanValue()).str();<a name="line.101"></a> |
| <FONT color="green">102</FONT> }<a name="line.102"></a> |
| <FONT color="green">103</FONT> else if (rtf instanceof Double)<a name="line.103"></a> |
| <FONT color="green">104</FONT> {<a name="line.104"></a> |
| <FONT color="green">105</FONT> textNodeValue = new XNumber(((Double) rtf).doubleValue()).str();<a name="line.105"></a> |
| <FONT color="green">106</FONT> }<a name="line.106"></a> |
| <FONT color="green">107</FONT> else<a name="line.107"></a> |
| <FONT color="green">108</FONT> {<a name="line.108"></a> |
| <FONT color="green">109</FONT> textNodeValue = rtf.toString();<a name="line.109"></a> |
| <FONT color="green">110</FONT> }<a name="line.110"></a> |
| <FONT color="green">111</FONT> <a name="line.111"></a> |
| <FONT color="green">112</FONT> // This no longer will work right since the DTM.<a name="line.112"></a> |
| <FONT color="green">113</FONT> // Document myDoc = myProcessor.getContextNode().getOwnerDocument();<a name="line.113"></a> |
| <FONT color="green">114</FONT> try<a name="line.114"></a> |
| <FONT color="green">115</FONT> {<a name="line.115"></a> |
| <FONT color="green">116</FONT> DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();<a name="line.116"></a> |
| <FONT color="green">117</FONT> DocumentBuilder db = dbf.newDocumentBuilder();<a name="line.117"></a> |
| <FONT color="green">118</FONT> Document myDoc = db.newDocument();<a name="line.118"></a> |
| <FONT color="green">119</FONT> <a name="line.119"></a> |
| <FONT color="green">120</FONT> Text textNode = myDoc.createTextNode(textNodeValue);<a name="line.120"></a> |
| <FONT color="green">121</FONT> DocumentFragment docFrag = myDoc.createDocumentFragment();<a name="line.121"></a> |
| <FONT color="green">122</FONT> <a name="line.122"></a> |
| <FONT color="green">123</FONT> docFrag.appendChild(textNode);<a name="line.123"></a> |
| <FONT color="green">124</FONT> <a name="line.124"></a> |
| <FONT color="green">125</FONT> return new NodeSet(docFrag);<a name="line.125"></a> |
| <FONT color="green">126</FONT> }<a name="line.126"></a> |
| <FONT color="green">127</FONT> catch(ParserConfigurationException pce)<a name="line.127"></a> |
| <FONT color="green">128</FONT> {<a name="line.128"></a> |
| <FONT color="green">129</FONT> throw new org.apache.xml.utils.WrappedRuntimeException(pce);<a name="line.129"></a> |
| <FONT color="green">130</FONT> }<a name="line.130"></a> |
| <FONT color="green">131</FONT> }<a name="line.131"></a> |
| <FONT color="green">132</FONT> }<a name="line.132"></a> |
| <FONT color="green">133</FONT> <a name="line.133"></a> |
| <FONT color="green">134</FONT> /**<a name="line.134"></a> |
| <FONT color="green">135</FONT> * Returns the intersection of two node-sets.<a name="line.135"></a> |
| <FONT color="green">136</FONT> * <a name="line.136"></a> |
| <FONT color="green">137</FONT> * @param nl1 NodeList for first node-set<a name="line.137"></a> |
| <FONT color="green">138</FONT> * @param nl2 NodeList for second node-set<a name="line.138"></a> |
| <FONT color="green">139</FONT> * @return a NodeList containing the nodes in nl1 that are also in nl2<a name="line.139"></a> |
| <FONT color="green">140</FONT> *<a name="line.140"></a> |
| <FONT color="green">141</FONT> * Note: The usage of this extension function in the xalan namespace <a name="line.141"></a> |
| <FONT color="green">142</FONT> * is deprecated. Please use the same function in the EXSLT sets extension<a name="line.142"></a> |
| <FONT color="green">143</FONT> * (http://exslt.org/sets).<a name="line.143"></a> |
| <FONT color="green">144</FONT> */<a name="line.144"></a> |
| <FONT color="green">145</FONT> public static NodeList intersection(NodeList nl1, NodeList nl2)<a name="line.145"></a> |
| <FONT color="green">146</FONT> {<a name="line.146"></a> |
| <FONT color="green">147</FONT> return ExsltSets.intersection(nl1, nl2);<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> /**<a name="line.150"></a> |
| <FONT color="green">151</FONT> * Returns the difference between two node-sets.<a name="line.151"></a> |
| <FONT color="green">152</FONT> * <a name="line.152"></a> |
| <FONT color="green">153</FONT> * @param nl1 NodeList for first node-set<a name="line.153"></a> |
| <FONT color="green">154</FONT> * @param nl2 NodeList for second node-set<a name="line.154"></a> |
| <FONT color="green">155</FONT> * @return a NodeList containing the nodes in nl1 that are not in nl2<a name="line.155"></a> |
| <FONT color="green">156</FONT> * <a name="line.156"></a> |
| <FONT color="green">157</FONT> * Note: The usage of this extension function in the xalan namespace <a name="line.157"></a> |
| <FONT color="green">158</FONT> * is deprecated. Please use the same function in the EXSLT sets extension<a name="line.158"></a> |
| <FONT color="green">159</FONT> * (http://exslt.org/sets).<a name="line.159"></a> |
| <FONT color="green">160</FONT> */<a name="line.160"></a> |
| <FONT color="green">161</FONT> public static NodeList difference(NodeList nl1, NodeList nl2)<a name="line.161"></a> |
| <FONT color="green">162</FONT> {<a name="line.162"></a> |
| <FONT color="green">163</FONT> return ExsltSets.difference(nl1, nl2);<a name="line.163"></a> |
| <FONT color="green">164</FONT> }<a name="line.164"></a> |
| <FONT color="green">165</FONT> <a name="line.165"></a> |
| <FONT color="green">166</FONT> /**<a name="line.166"></a> |
| <FONT color="green">167</FONT> * Returns node-set containing distinct string values.<a name="line.167"></a> |
| <FONT color="green">168</FONT> *<a name="line.168"></a> |
| <FONT color="green">169</FONT> * @param nl NodeList for node-set<a name="line.169"></a> |
| <FONT color="green">170</FONT> * @return a NodeList with nodes from nl containing distinct string values.<a name="line.170"></a> |
| <FONT color="green">171</FONT> * In other words, if more than one node in nl contains the same string value,<a name="line.171"></a> |
| <FONT color="green">172</FONT> * only include the first such node found.<a name="line.172"></a> |
| <FONT color="green">173</FONT> *<a name="line.173"></a> |
| <FONT color="green">174</FONT> * Note: The usage of this extension function in the xalan namespace <a name="line.174"></a> |
| <FONT color="green">175</FONT> * is deprecated. Please use the same function in the EXSLT sets extension<a name="line.175"></a> |
| <FONT color="green">176</FONT> * (http://exslt.org/sets).<a name="line.176"></a> |
| <FONT color="green">177</FONT> */<a name="line.177"></a> |
| <FONT color="green">178</FONT> public static NodeList distinct(NodeList nl)<a name="line.178"></a> |
| <FONT color="green">179</FONT> {<a name="line.179"></a> |
| <FONT color="green">180</FONT> return ExsltSets.distinct(nl);<a name="line.180"></a> |
| <FONT color="green">181</FONT> }<a name="line.181"></a> |
| <FONT color="green">182</FONT> <a name="line.182"></a> |
| <FONT color="green">183</FONT> /**<a name="line.183"></a> |
| <FONT color="green">184</FONT> * Returns true if both node-sets contain the same set of nodes.<a name="line.184"></a> |
| <FONT color="green">185</FONT> *<a name="line.185"></a> |
| <FONT color="green">186</FONT> * @param nl1 NodeList for first node-set<a name="line.186"></a> |
| <FONT color="green">187</FONT> * @param nl2 NodeList for second node-set<a name="line.187"></a> |
| <FONT color="green">188</FONT> * @return true if nl1 and nl2 contain exactly the same set of nodes.<a name="line.188"></a> |
| <FONT color="green">189</FONT> */<a name="line.189"></a> |
| <FONT color="green">190</FONT> public static boolean hasSameNodes(NodeList nl1, NodeList nl2)<a name="line.190"></a> |
| <FONT color="green">191</FONT> {<a name="line.191"></a> |
| <FONT color="green">192</FONT> <a name="line.192"></a> |
| <FONT color="green">193</FONT> NodeSet ns1 = new NodeSet(nl1);<a name="line.193"></a> |
| <FONT color="green">194</FONT> NodeSet ns2 = new NodeSet(nl2);<a name="line.194"></a> |
| <FONT color="green">195</FONT> <a name="line.195"></a> |
| <FONT color="green">196</FONT> if (ns1.getLength() != ns2.getLength())<a name="line.196"></a> |
| <FONT color="green">197</FONT> return false;<a name="line.197"></a> |
| <FONT color="green">198</FONT> <a name="line.198"></a> |
| <FONT color="green">199</FONT> for (int i = 0; i < ns1.getLength(); i++)<a name="line.199"></a> |
| <FONT color="green">200</FONT> {<a name="line.200"></a> |
| <FONT color="green">201</FONT> Node n = ns1.elementAt(i);<a name="line.201"></a> |
| <FONT color="green">202</FONT> <a name="line.202"></a> |
| <FONT color="green">203</FONT> if (!ns2.contains(n))<a name="line.203"></a> |
| <FONT color="green">204</FONT> return false;<a name="line.204"></a> |
| <FONT color="green">205</FONT> }<a name="line.205"></a> |
| <FONT color="green">206</FONT> <a name="line.206"></a> |
| <FONT color="green">207</FONT> return true;<a name="line.207"></a> |
| <FONT color="green">208</FONT> }<a name="line.208"></a> |
| <FONT color="green">209</FONT> <a name="line.209"></a> |
| <FONT color="green">210</FONT> /**<a name="line.210"></a> |
| <FONT color="green">211</FONT> * Returns the result of evaluating the argument as a string containing<a name="line.211"></a> |
| <FONT color="green">212</FONT> * an XPath expression. Used where the XPath expression is not known until<a name="line.212"></a> |
| <FONT color="green">213</FONT> * run-time. The expression is evaluated as if the run-time value of the<a name="line.213"></a> |
| <FONT color="green">214</FONT> * argument appeared in place of the evaluate function call at compile time.<a name="line.214"></a> |
| <FONT color="green">215</FONT> *<a name="line.215"></a> |
| <FONT color="green">216</FONT> * @param myContext an <code>ExpressionContext</code> passed in by the<a name="line.216"></a> |
| <FONT color="green">217</FONT> * extension mechanism. This must be an XPathContext.<a name="line.217"></a> |
| <FONT color="green">218</FONT> * @param xpathExpr The XPath expression to be evaluated.<a name="line.218"></a> |
| <FONT color="green">219</FONT> * @return the XObject resulting from evaluating the XPath<a name="line.219"></a> |
| <FONT color="green">220</FONT> *<a name="line.220"></a> |
| <FONT color="green">221</FONT> * @throws SAXNotSupportedException<a name="line.221"></a> |
| <FONT color="green">222</FONT> *<a name="line.222"></a> |
| <FONT color="green">223</FONT> * Note: The usage of this extension function in the xalan namespace <a name="line.223"></a> |
| <FONT color="green">224</FONT> * is deprecated. Please use the same function in the EXSLT dynamic extension<a name="line.224"></a> |
| <FONT color="green">225</FONT> * (http://exslt.org/dynamic).<a name="line.225"></a> |
| <FONT color="green">226</FONT> */<a name="line.226"></a> |
| <FONT color="green">227</FONT> public static XObject evaluate(ExpressionContext myContext, String xpathExpr)<a name="line.227"></a> |
| <FONT color="green">228</FONT> throws SAXNotSupportedException<a name="line.228"></a> |
| <FONT color="green">229</FONT> {<a name="line.229"></a> |
| <FONT color="green">230</FONT> return ExsltDynamic.evaluate(myContext, xpathExpr);<a name="line.230"></a> |
| <FONT color="green">231</FONT> }<a name="line.231"></a> |
| <FONT color="green">232</FONT> <a name="line.232"></a> |
| <FONT color="green">233</FONT> /**<a name="line.233"></a> |
| <FONT color="green">234</FONT> * Returns a NodeSet containing one text node for each token in the first argument.<a name="line.234"></a> |
| <FONT color="green">235</FONT> * Delimiters are specified in the second argument.<a name="line.235"></a> |
| <FONT color="green">236</FONT> * Tokens are determined by a call to <code>StringTokenizer</code>.<a name="line.236"></a> |
| <FONT color="green">237</FONT> * If the first argument is an empty string or contains only delimiters, the result<a name="line.237"></a> |
| <FONT color="green">238</FONT> * will be an empty NodeSet.<a name="line.238"></a> |
| <FONT color="green">239</FONT> *<a name="line.239"></a> |
| <FONT color="green">240</FONT> * Contributed to XalanJ1 by <a href="mailto:benoit.cerrina@writeme.com">Benoit Cerrina</a>.<a name="line.240"></a> |
| <FONT color="green">241</FONT> * <a name="line.241"></a> |
| <FONT color="green">242</FONT> * @param toTokenize The string to be split into text tokens.<a name="line.242"></a> |
| <FONT color="green">243</FONT> * @param delims The delimiters to use.<a name="line.243"></a> |
| <FONT color="green">244</FONT> * @return a NodeSet as described above.<a name="line.244"></a> |
| <FONT color="green">245</FONT> */<a name="line.245"></a> |
| <FONT color="green">246</FONT> public static NodeList tokenize(String toTokenize, String delims)<a name="line.246"></a> |
| <FONT color="green">247</FONT> {<a name="line.247"></a> |
| <FONT color="green">248</FONT> <a name="line.248"></a> |
| <FONT color="green">249</FONT> Document doc = DocumentHolder.m_doc;<a name="line.249"></a> |
| <FONT color="green">250</FONT> <a name="line.250"></a> |
| <FONT color="green">251</FONT> <a name="line.251"></a> |
| <FONT color="green">252</FONT> StringTokenizer lTokenizer = new StringTokenizer(toTokenize, delims);<a name="line.252"></a> |
| <FONT color="green">253</FONT> NodeSet resultSet = new NodeSet();<a name="line.253"></a> |
| <FONT color="green">254</FONT> <a name="line.254"></a> |
| <FONT color="green">255</FONT> synchronized (doc)<a name="line.255"></a> |
| <FONT color="green">256</FONT> {<a name="line.256"></a> |
| <FONT color="green">257</FONT> while (lTokenizer.hasMoreTokens())<a name="line.257"></a> |
| <FONT color="green">258</FONT> {<a name="line.258"></a> |
| <FONT color="green">259</FONT> resultSet.addNode(doc.createTextNode(lTokenizer.nextToken()));<a name="line.259"></a> |
| <FONT color="green">260</FONT> }<a name="line.260"></a> |
| <FONT color="green">261</FONT> }<a name="line.261"></a> |
| <FONT color="green">262</FONT> <a name="line.262"></a> |
| <FONT color="green">263</FONT> return resultSet;<a name="line.263"></a> |
| <FONT color="green">264</FONT> }<a name="line.264"></a> |
| <FONT color="green">265</FONT> <a name="line.265"></a> |
| <FONT color="green">266</FONT> /**<a name="line.266"></a> |
| <FONT color="green">267</FONT> * Returns a NodeSet containing one text node for each token in the first argument.<a name="line.267"></a> |
| <FONT color="green">268</FONT> * Delimiters are whitespace. That is, the delimiters that are used are tab (&#x09),<a name="line.268"></a> |
| <FONT color="green">269</FONT> * linefeed (&#x0A), return (&#x0D), and space (&#x20).<a name="line.269"></a> |
| <FONT color="green">270</FONT> * Tokens are determined by a call to <code>StringTokenizer</code>.<a name="line.270"></a> |
| <FONT color="green">271</FONT> * If the first argument is an empty string or contains only delimiters, the result<a name="line.271"></a> |
| <FONT color="green">272</FONT> * will be an empty NodeSet.<a name="line.272"></a> |
| <FONT color="green">273</FONT> *<a name="line.273"></a> |
| <FONT color="green">274</FONT> * Contributed to XalanJ1 by <a href="mailto:benoit.cerrina@writeme.com">Benoit Cerrina</a>.<a name="line.274"></a> |
| <FONT color="green">275</FONT> * <a name="line.275"></a> |
| <FONT color="green">276</FONT> * @param toTokenize The string to be split into text tokens.<a name="line.276"></a> |
| <FONT color="green">277</FONT> * @return a NodeSet as described above.<a name="line.277"></a> |
| <FONT color="green">278</FONT> */<a name="line.278"></a> |
| <FONT color="green">279</FONT> public static NodeList tokenize(String toTokenize)<a name="line.279"></a> |
| <FONT color="green">280</FONT> {<a name="line.280"></a> |
| <FONT color="green">281</FONT> return tokenize(toTokenize, " \t\n\r");<a name="line.281"></a> |
| <FONT color="green">282</FONT> }<a name="line.282"></a> |
| <FONT color="green">283</FONT> <a name="line.283"></a> |
| <FONT color="green">284</FONT> /**<a name="line.284"></a> |
| <FONT color="green">285</FONT> * Return a Node of basic debugging information from the <a name="line.285"></a> |
| <FONT color="green">286</FONT> * EnvironmentCheck utility about the Java environment.<a name="line.286"></a> |
| <FONT color="green">287</FONT> *<a name="line.287"></a> |
| <FONT color="green">288</FONT> * <p>Simply calls the {@link org.apache.xalan.xslt.EnvironmentCheck}<a name="line.288"></a> |
| <FONT color="green">289</FONT> * utility to grab info about the Java environment and CLASSPATH, <a name="line.289"></a> |
| <FONT color="green">290</FONT> * etc., and then returns the resulting Node. Stylesheets can <a name="line.290"></a> |
| <FONT color="green">291</FONT> * then maniuplate this data or simply xsl:copy-of the Node. Note <a name="line.291"></a> |
| <FONT color="green">292</FONT> * that we first attempt to load the more advanced <a name="line.292"></a> |
| <FONT color="green">293</FONT> * org.apache.env.Which utility by reflection; only if that fails <a name="line.293"></a> |
| <FONT color="green">294</FONT> * to we still use the internal version. Which is available from <a name="line.294"></a> |
| <FONT color="green">295</FONT> * <a href="http://xml.apache.org/commons/">http://xml.apache.org/commons/</a>.</p><a name="line.295"></a> |
| <FONT color="green">296</FONT> *<a name="line.296"></a> |
| <FONT color="green">297</FONT> * <p>We throw a WrappedRuntimeException in the unlikely case <a name="line.297"></a> |
| <FONT color="green">298</FONT> * that reading information from the environment throws us an <a name="line.298"></a> |
| <FONT color="green">299</FONT> * exception. (Is this really the best thing to do?)</p><a name="line.299"></a> |
| <FONT color="green">300</FONT> *<a name="line.300"></a> |
| <FONT color="green">301</FONT> * @param myContext an <code>ExpressionContext</code> passed in by the<a name="line.301"></a> |
| <FONT color="green">302</FONT> * extension mechanism. This must be an XPathContext.<a name="line.302"></a> |
| <FONT color="green">303</FONT> * @return a Node as described above.<a name="line.303"></a> |
| <FONT color="green">304</FONT> */<a name="line.304"></a> |
| <FONT color="green">305</FONT> public static Node checkEnvironment(ExpressionContext myContext)<a name="line.305"></a> |
| <FONT color="green">306</FONT> {<a name="line.306"></a> |
| <FONT color="green">307</FONT> <a name="line.307"></a> |
| <FONT color="green">308</FONT> Document factoryDocument;<a name="line.308"></a> |
| <FONT color="green">309</FONT> try<a name="line.309"></a> |
| <FONT color="green">310</FONT> {<a name="line.310"></a> |
| <FONT color="green">311</FONT> DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();<a name="line.311"></a> |
| <FONT color="green">312</FONT> DocumentBuilder db = dbf.newDocumentBuilder();<a name="line.312"></a> |
| <FONT color="green">313</FONT> factoryDocument = db.newDocument();<a name="line.313"></a> |
| <FONT color="green">314</FONT> }<a name="line.314"></a> |
| <FONT color="green">315</FONT> catch(ParserConfigurationException pce)<a name="line.315"></a> |
| <FONT color="green">316</FONT> {<a name="line.316"></a> |
| <FONT color="green">317</FONT> throw new org.apache.xml.utils.WrappedRuntimeException(pce);<a name="line.317"></a> |
| <FONT color="green">318</FONT> }<a name="line.318"></a> |
| <FONT color="green">319</FONT> <a name="line.319"></a> |
| <FONT color="green">320</FONT> Node resultNode = null;<a name="line.320"></a> |
| <FONT color="green">321</FONT> try<a name="line.321"></a> |
| <FONT color="green">322</FONT> {<a name="line.322"></a> |
| <FONT color="green">323</FONT> // First use reflection to try to load Which, which is a <a name="line.323"></a> |
| <FONT color="green">324</FONT> // better version of EnvironmentCheck<a name="line.324"></a> |
| <FONT color="green">325</FONT> resultNode = checkEnvironmentUsingWhich(myContext, factoryDocument);<a name="line.325"></a> |
| <FONT color="green">326</FONT> <a name="line.326"></a> |
| <FONT color="green">327</FONT> if (null != resultNode)<a name="line.327"></a> |
| <FONT color="green">328</FONT> return resultNode;<a name="line.328"></a> |
| <FONT color="green">329</FONT> <a name="line.329"></a> |
| <FONT color="green">330</FONT> // If reflection failed, fallback to our internal EnvironmentCheck<a name="line.330"></a> |
| <FONT color="green">331</FONT> EnvironmentCheck envChecker = new EnvironmentCheck();<a name="line.331"></a> |
| <FONT color="green">332</FONT> Hashtable h = envChecker.getEnvironmentHash();<a name="line.332"></a> |
| <FONT color="green">333</FONT> resultNode = factoryDocument.createElement("checkEnvironmentExtension");<a name="line.333"></a> |
| <FONT color="green">334</FONT> envChecker.appendEnvironmentReport(resultNode, factoryDocument, h);<a name="line.334"></a> |
| <FONT color="green">335</FONT> envChecker = null;<a name="line.335"></a> |
| <FONT color="green">336</FONT> }<a name="line.336"></a> |
| <FONT color="green">337</FONT> catch(Exception e)<a name="line.337"></a> |
| <FONT color="green">338</FONT> {<a name="line.338"></a> |
| <FONT color="green">339</FONT> throw new org.apache.xml.utils.WrappedRuntimeException(e);<a name="line.339"></a> |
| <FONT color="green">340</FONT> }<a name="line.340"></a> |
| <FONT color="green">341</FONT> <a name="line.341"></a> |
| <FONT color="green">342</FONT> return resultNode;<a name="line.342"></a> |
| <FONT color="green">343</FONT> }<a name="line.343"></a> |
| <FONT color="green">344</FONT> <a name="line.344"></a> |
| <FONT color="green">345</FONT> /**<a name="line.345"></a> |
| <FONT color="green">346</FONT> * Private worker method to attempt to use org.apache.env.Which.<a name="line.346"></a> |
| <FONT color="green">347</FONT> *<a name="line.347"></a> |
| <FONT color="green">348</FONT> * @param myContext an <code>ExpressionContext</code> passed in by the<a name="line.348"></a> |
| <FONT color="green">349</FONT> * extension mechanism. This must be an XPathContext.<a name="line.349"></a> |
| <FONT color="green">350</FONT> * @param factoryDocument providing createElement services, etc.<a name="line.350"></a> |
| <FONT color="green">351</FONT> * @return a Node with environment info; null if any error<a name="line.351"></a> |
| <FONT color="green">352</FONT> */<a name="line.352"></a> |
| <FONT color="green">353</FONT> private static Node checkEnvironmentUsingWhich(ExpressionContext myContext, <a name="line.353"></a> |
| <FONT color="green">354</FONT> Document factoryDocument)<a name="line.354"></a> |
| <FONT color="green">355</FONT> {<a name="line.355"></a> |
| <FONT color="green">356</FONT> final String WHICH_CLASSNAME = "org.apache.env.Which";<a name="line.356"></a> |
| <FONT color="green">357</FONT> final String WHICH_METHODNAME = "which";<a name="line.357"></a> |
| <FONT color="green">358</FONT> final Class WHICH_METHOD_ARGS[] = { java.util.Hashtable.class,<a name="line.358"></a> |
| <FONT color="green">359</FONT> java.lang.String.class,<a name="line.359"></a> |
| <FONT color="green">360</FONT> java.lang.String.class };<a name="line.360"></a> |
| <FONT color="green">361</FONT> try<a name="line.361"></a> |
| <FONT color="green">362</FONT> {<a name="line.362"></a> |
| <FONT color="green">363</FONT> // Use reflection to try to find xml-commons utility 'Which'<a name="line.363"></a> |
| <FONT color="green">364</FONT> Class clazz = ObjectFactory.findProviderClass(<a name="line.364"></a> |
| <FONT color="green">365</FONT> WHICH_CLASSNAME, ObjectFactory.findClassLoader(), true);<a name="line.365"></a> |
| <FONT color="green">366</FONT> if (null == clazz)<a name="line.366"></a> |
| <FONT color="green">367</FONT> return null;<a name="line.367"></a> |
| <FONT color="green">368</FONT> <a name="line.368"></a> |
| <FONT color="green">369</FONT> // Fully qualify names since this is the only method they're used in<a name="line.369"></a> |
| <FONT color="green">370</FONT> java.lang.reflect.Method method = clazz.getMethod(WHICH_METHODNAME, WHICH_METHOD_ARGS);<a name="line.370"></a> |
| <FONT color="green">371</FONT> Hashtable report = new Hashtable();<a name="line.371"></a> |
| <FONT color="green">372</FONT> <a name="line.372"></a> |
| <FONT color="green">373</FONT> // Call the method with our Hashtable, common options, and ignore return value<a name="line.373"></a> |
| <FONT color="green">374</FONT> Object[] methodArgs = { report, "XmlCommons;Xalan;Xerces;Crimson;Ant", "" };<a name="line.374"></a> |
| <FONT color="green">375</FONT> Object returnValue = method.invoke(null, methodArgs);<a name="line.375"></a> |
| <FONT color="green">376</FONT> <a name="line.376"></a> |
| <FONT color="green">377</FONT> // Create a parent to hold the report and append hash to it<a name="line.377"></a> |
| <FONT color="green">378</FONT> Node resultNode = factoryDocument.createElement("checkEnvironmentExtension");<a name="line.378"></a> |
| <FONT color="green">379</FONT> org.apache.xml.utils.Hashtree2Node.appendHashToNode(report, "whichReport", <a name="line.379"></a> |
| <FONT color="green">380</FONT> resultNode, factoryDocument);<a name="line.380"></a> |
| <FONT color="green">381</FONT> <a name="line.381"></a> |
| <FONT color="green">382</FONT> return resultNode;<a name="line.382"></a> |
| <FONT color="green">383</FONT> }<a name="line.383"></a> |
| <FONT color="green">384</FONT> catch (Throwable t)<a name="line.384"></a> |
| <FONT color="green">385</FONT> {<a name="line.385"></a> |
| <FONT color="green">386</FONT> // Simply return null; no need to report error<a name="line.386"></a> |
| <FONT color="green">387</FONT> return null;<a name="line.387"></a> |
| <FONT color="green">388</FONT> }<a name="line.388"></a> |
| <FONT color="green">389</FONT> }<a name="line.389"></a> |
| <FONT color="green">390</FONT> <a name="line.390"></a> |
| <FONT color="green">391</FONT> /**<a name="line.391"></a> |
| <FONT color="green">392</FONT> * This class is not loaded until first referenced (see Java Language<a name="line.392"></a> |
| <FONT color="green">393</FONT> * Specification by Gosling/Joy/Steele, section 12.4.1)<a name="line.393"></a> |
| <FONT color="green">394</FONT> *<a name="line.394"></a> |
| <FONT color="green">395</FONT> * The static members are created when this class is first referenced, as a<a name="line.395"></a> |
| <FONT color="green">396</FONT> * lazy initialization not needing checking against null or any<a name="line.396"></a> |
| <FONT color="green">397</FONT> * synchronization.<a name="line.397"></a> |
| <FONT color="green">398</FONT> *<a name="line.398"></a> |
| <FONT color="green">399</FONT> */<a name="line.399"></a> |
| <FONT color="green">400</FONT> private static class DocumentHolder<a name="line.400"></a> |
| <FONT color="green">401</FONT> {<a name="line.401"></a> |
| <FONT color="green">402</FONT> // Reuse the Document object to reduce memory usage.<a name="line.402"></a> |
| <FONT color="green">403</FONT> private static final Document m_doc;<a name="line.403"></a> |
| <FONT color="green">404</FONT> static <a name="line.404"></a> |
| <FONT color="green">405</FONT> {<a name="line.405"></a> |
| <FONT color="green">406</FONT> try<a name="line.406"></a> |
| <FONT color="green">407</FONT> {<a name="line.407"></a> |
| <FONT color="green">408</FONT> m_doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();<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> catch(ParserConfigurationException pce)<a name="line.411"></a> |
| <FONT color="green">412</FONT> {<a name="line.412"></a> |
| <FONT color="green">413</FONT> throw new org.apache.xml.utils.WrappedRuntimeException(pce);<a name="line.413"></a> |
| <FONT color="green">414</FONT> }<a name="line.414"></a> |
| <FONT color="green">415</FONT> <a name="line.415"></a> |
| <FONT color="green">416</FONT> }<a name="line.416"></a> |
| <FONT color="green">417</FONT> } <a name="line.417"></a> |
| <FONT color="green">418</FONT> }<a name="line.418"></a> |
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