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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: SourceTreeManager.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.xpath;<a name="line.21"></a> |
| <FONT color="green">022</FONT> <a name="line.22"></a> |
| <FONT color="green">023</FONT> import java.io.IOException;<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.transform.Source;<a name="line.26"></a> |
| <FONT color="green">027</FONT> import javax.xml.transform.SourceLocator;<a name="line.27"></a> |
| <FONT color="green">028</FONT> import javax.xml.transform.TransformerException;<a name="line.28"></a> |
| <FONT color="green">029</FONT> import javax.xml.transform.URIResolver;<a name="line.29"></a> |
| <FONT color="green">030</FONT> import javax.xml.transform.sax.SAXSource;<a name="line.30"></a> |
| <FONT color="green">031</FONT> import javax.xml.transform.stream.StreamSource;<a name="line.31"></a> |
| <FONT color="green">032</FONT> <a name="line.32"></a> |
| <FONT color="green">033</FONT> import org.apache.xml.dtm.DTM;<a name="line.33"></a> |
| <FONT color="green">034</FONT> import org.apache.xml.utils.SystemIDResolver;<a name="line.34"></a> |
| <FONT color="green">035</FONT> <a name="line.35"></a> |
| <FONT color="green">036</FONT> import org.xml.sax.XMLReader;<a name="line.36"></a> |
| <FONT color="green">037</FONT> import org.xml.sax.helpers.XMLReaderFactory;<a name="line.37"></a> |
| <FONT color="green">038</FONT> <a name="line.38"></a> |
| <FONT color="green">039</FONT> /**<a name="line.39"></a> |
| <FONT color="green">040</FONT> * This class bottlenecks all management of source trees. The methods<a name="line.40"></a> |
| <FONT color="green">041</FONT> * in this class should allow easy garbage collection of source<a name="line.41"></a> |
| <FONT color="green">042</FONT> * trees (not yet!), and should centralize parsing for those source trees.<a name="line.42"></a> |
| <FONT color="green">043</FONT> */<a name="line.43"></a> |
| <FONT color="green">044</FONT> public class SourceTreeManager<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> /** Vector of SourceTree objects that this manager manages. */<a name="line.47"></a> |
| <FONT color="green">048</FONT> private Vector m_sourceTree = new Vector();<a name="line.48"></a> |
| <FONT color="green">049</FONT> <a name="line.49"></a> |
| <FONT color="green">050</FONT> /**<a name="line.50"></a> |
| <FONT color="green">051</FONT> * Reset the list of SourceTree objects that this manager manages.<a name="line.51"></a> |
| <FONT color="green">052</FONT> *<a name="line.52"></a> |
| <FONT color="green">053</FONT> */<a name="line.53"></a> |
| <FONT color="green">054</FONT> public void reset()<a name="line.54"></a> |
| <FONT color="green">055</FONT> {<a name="line.55"></a> |
| <FONT color="green">056</FONT> m_sourceTree = new Vector();<a name="line.56"></a> |
| <FONT color="green">057</FONT> }<a name="line.57"></a> |
| <FONT color="green">058</FONT> <a name="line.58"></a> |
| <FONT color="green">059</FONT> /** The TrAX URI resolver used to obtain source trees. */<a name="line.59"></a> |
| <FONT color="green">060</FONT> URIResolver m_uriResolver;<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> * Set an object that will be used to resolve URIs used in<a name="line.63"></a> |
| <FONT color="green">064</FONT> * document(), etc.<a name="line.64"></a> |
| <FONT color="green">065</FONT> * @param resolver An object that implements the URIResolver interface,<a name="line.65"></a> |
| <FONT color="green">066</FONT> * or null.<a name="line.66"></a> |
| <FONT color="green">067</FONT> */<a name="line.67"></a> |
| <FONT color="green">068</FONT> public void setURIResolver(URIResolver resolver)<a name="line.68"></a> |
| <FONT color="green">069</FONT> {<a name="line.69"></a> |
| <FONT color="green">070</FONT> m_uriResolver = resolver;<a name="line.70"></a> |
| <FONT color="green">071</FONT> }<a name="line.71"></a> |
| <FONT color="green">072</FONT> <a name="line.72"></a> |
| <FONT color="green">073</FONT> /**<a name="line.73"></a> |
| <FONT color="green">074</FONT> * Get the object that will be used to resolve URIs used in<a name="line.74"></a> |
| <FONT color="green">075</FONT> * document(), etc.<a name="line.75"></a> |
| <FONT color="green">076</FONT> * @return An object that implements the URIResolver interface,<a name="line.76"></a> |
| <FONT color="green">077</FONT> * or null.<a name="line.77"></a> |
| <FONT color="green">078</FONT> */<a name="line.78"></a> |
| <FONT color="green">079</FONT> public URIResolver getURIResolver()<a name="line.79"></a> |
| <FONT color="green">080</FONT> {<a name="line.80"></a> |
| <FONT color="green">081</FONT> return m_uriResolver;<a name="line.81"></a> |
| <FONT color="green">082</FONT> }<a name="line.82"></a> |
| <FONT color="green">083</FONT> <a name="line.83"></a> |
| <FONT color="green">084</FONT> /**<a name="line.84"></a> |
| <FONT color="green">085</FONT> * Given a document, find the URL associated with that document.<a name="line.85"></a> |
| <FONT color="green">086</FONT> * @param owner Document that was previously processed by this liaison.<a name="line.86"></a> |
| <FONT color="green">087</FONT> *<a name="line.87"></a> |
| <FONT color="green">088</FONT> * @return The base URI of the owner argument.<a name="line.88"></a> |
| <FONT color="green">089</FONT> */<a name="line.89"></a> |
| <FONT color="green">090</FONT> public String findURIFromDoc(int owner)<a name="line.90"></a> |
| <FONT color="green">091</FONT> {<a name="line.91"></a> |
| <FONT color="green">092</FONT> int n = m_sourceTree.size();<a name="line.92"></a> |
| <FONT color="green">093</FONT> <a name="line.93"></a> |
| <FONT color="green">094</FONT> for (int i = 0; i < n; i++)<a name="line.94"></a> |
| <FONT color="green">095</FONT> {<a name="line.95"></a> |
| <FONT color="green">096</FONT> SourceTree sTree = (SourceTree) m_sourceTree.elementAt(i);<a name="line.96"></a> |
| <FONT color="green">097</FONT> <a name="line.97"></a> |
| <FONT color="green">098</FONT> if (owner == sTree.m_root)<a name="line.98"></a> |
| <FONT color="green">099</FONT> return sTree.m_url;<a name="line.99"></a> |
| <FONT color="green">100</FONT> }<a name="line.100"></a> |
| <FONT color="green">101</FONT> <a name="line.101"></a> |
| <FONT color="green">102</FONT> return null;<a name="line.102"></a> |
| <FONT color="green">103</FONT> }<a name="line.103"></a> |
| <FONT color="green">104</FONT> <a name="line.104"></a> |
| <FONT color="green">105</FONT> /**<a name="line.105"></a> |
| <FONT color="green">106</FONT> * This will be called by the processor when it encounters<a name="line.106"></a> |
| <FONT color="green">107</FONT> * an xsl:include, xsl:import, or document() function.<a name="line.107"></a> |
| <FONT color="green">108</FONT> *<a name="line.108"></a> |
| <FONT color="green">109</FONT> * @param base The base URI that should be used.<a name="line.109"></a> |
| <FONT color="green">110</FONT> * @param urlString Value from an xsl:import or xsl:include's href attribute,<a name="line.110"></a> |
| <FONT color="green">111</FONT> * or a URI specified in the document() function.<a name="line.111"></a> |
| <FONT color="green">112</FONT> * <a name="line.112"></a> |
| <FONT color="green">113</FONT> * @return a Source that can be used to process the resource.<a name="line.113"></a> |
| <FONT color="green">114</FONT> *<a name="line.114"></a> |
| <FONT color="green">115</FONT> * @throws IOException<a name="line.115"></a> |
| <FONT color="green">116</FONT> * @throws TransformerException<a name="line.116"></a> |
| <FONT color="green">117</FONT> */<a name="line.117"></a> |
| <FONT color="green">118</FONT> public Source resolveURI(<a name="line.118"></a> |
| <FONT color="green">119</FONT> String base, String urlString, SourceLocator locator)<a name="line.119"></a> |
| <FONT color="green">120</FONT> throws TransformerException, IOException<a name="line.120"></a> |
| <FONT color="green">121</FONT> {<a name="line.121"></a> |
| <FONT color="green">122</FONT> <a name="line.122"></a> |
| <FONT color="green">123</FONT> Source source = null;<a name="line.123"></a> |
| <FONT color="green">124</FONT> <a name="line.124"></a> |
| <FONT color="green">125</FONT> if (null != m_uriResolver)<a name="line.125"></a> |
| <FONT color="green">126</FONT> {<a name="line.126"></a> |
| <FONT color="green">127</FONT> source = m_uriResolver.resolve(urlString, base);<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> if (null == source)<a name="line.130"></a> |
| <FONT color="green">131</FONT> {<a name="line.131"></a> |
| <FONT color="green">132</FONT> String uri = SystemIDResolver.getAbsoluteURI(urlString, base);<a name="line.132"></a> |
| <FONT color="green">133</FONT> <a name="line.133"></a> |
| <FONT color="green">134</FONT> source = new StreamSource(uri);<a name="line.134"></a> |
| <FONT color="green">135</FONT> }<a name="line.135"></a> |
| <FONT color="green">136</FONT> <a name="line.136"></a> |
| <FONT color="green">137</FONT> return source;<a name="line.137"></a> |
| <FONT color="green">138</FONT> }<a name="line.138"></a> |
| <FONT color="green">139</FONT> <a name="line.139"></a> |
| <FONT color="green">140</FONT> /** JJK: Support <?xalan:doc_cache_off?> kluge in ElemForEach.<a name="line.140"></a> |
| <FONT color="green">141</FONT> * TODO: This function is highly dangerous. Cache management must be improved.<a name="line.141"></a> |
| <FONT color="green">142</FONT> *<a name="line.142"></a> |
| <FONT color="green">143</FONT> * @param n The node to remove.<a name="line.143"></a> |
| <FONT color="green">144</FONT> */<a name="line.144"></a> |
| <FONT color="green">145</FONT> public void removeDocumentFromCache(int n)<a name="line.145"></a> |
| <FONT color="green">146</FONT> {<a name="line.146"></a> |
| <FONT color="green">147</FONT> if(DTM.NULL ==n)<a name="line.147"></a> |
| <FONT color="green">148</FONT> return;<a name="line.148"></a> |
| <FONT color="green">149</FONT> for(int i=m_sourceTree.size()-1;i>=0;--i)<a name="line.149"></a> |
| <FONT color="green">150</FONT> {<a name="line.150"></a> |
| <FONT color="green">151</FONT> SourceTree st=(SourceTree)m_sourceTree.elementAt(i);<a name="line.151"></a> |
| <FONT color="green">152</FONT> if(st!=null && st.m_root==n)<a name="line.152"></a> |
| <FONT color="green">153</FONT> {<a name="line.153"></a> |
| <FONT color="green">154</FONT> m_sourceTree.removeElementAt(i);<a name="line.154"></a> |
| <FONT color="green">155</FONT> return;<a name="line.155"></a> |
| <FONT color="green">156</FONT> }<a name="line.156"></a> |
| <FONT color="green">157</FONT> }<a name="line.157"></a> |
| <FONT color="green">158</FONT> }<a name="line.158"></a> |
| <FONT color="green">159</FONT> <a name="line.159"></a> |
| <FONT color="green">160</FONT> <a name="line.160"></a> |
| <FONT color="green">161</FONT> <a name="line.161"></a> |
| <FONT color="green">162</FONT> /**<a name="line.162"></a> |
| <FONT color="green">163</FONT> * Put the source tree root node in the document cache.<a name="line.163"></a> |
| <FONT color="green">164</FONT> * TODO: This function needs to be a LOT more sophisticated.<a name="line.164"></a> |
| <FONT color="green">165</FONT> *<a name="line.165"></a> |
| <FONT color="green">166</FONT> * @param n The node to cache.<a name="line.166"></a> |
| <FONT color="green">167</FONT> * @param source The Source object to cache.<a name="line.167"></a> |
| <FONT color="green">168</FONT> */<a name="line.168"></a> |
| <FONT color="green">169</FONT> public void putDocumentInCache(int n, Source source)<a name="line.169"></a> |
| <FONT color="green">170</FONT> {<a name="line.170"></a> |
| <FONT color="green">171</FONT> <a name="line.171"></a> |
| <FONT color="green">172</FONT> int cachedNode = getNode(source);<a name="line.172"></a> |
| <FONT color="green">173</FONT> <a name="line.173"></a> |
| <FONT color="green">174</FONT> if (DTM.NULL != cachedNode)<a name="line.174"></a> |
| <FONT color="green">175</FONT> {<a name="line.175"></a> |
| <FONT color="green">176</FONT> if (!(cachedNode == n))<a name="line.176"></a> |
| <FONT color="green">177</FONT> throw new RuntimeException(<a name="line.177"></a> |
| <FONT color="green">178</FONT> "Programmer's Error! "<a name="line.178"></a> |
| <FONT color="green">179</FONT> + "putDocumentInCache found reparse of doc: "<a name="line.179"></a> |
| <FONT color="green">180</FONT> + source.getSystemId());<a name="line.180"></a> |
| <FONT color="green">181</FONT> return;<a name="line.181"></a> |
| <FONT color="green">182</FONT> }<a name="line.182"></a> |
| <FONT color="green">183</FONT> if (null != source.getSystemId())<a name="line.183"></a> |
| <FONT color="green">184</FONT> {<a name="line.184"></a> |
| <FONT color="green">185</FONT> m_sourceTree.addElement(new SourceTree(n, source.getSystemId()));<a name="line.185"></a> |
| <FONT color="green">186</FONT> }<a name="line.186"></a> |
| <FONT color="green">187</FONT> }<a name="line.187"></a> |
| <FONT color="green">188</FONT> <a name="line.188"></a> |
| <FONT color="green">189</FONT> /**<a name="line.189"></a> |
| <FONT color="green">190</FONT> * Given a Source object, find the node associated with it.<a name="line.190"></a> |
| <FONT color="green">191</FONT> *<a name="line.191"></a> |
| <FONT color="green">192</FONT> * @param source The Source object to act as the key.<a name="line.192"></a> |
| <FONT color="green">193</FONT> *<a name="line.193"></a> |
| <FONT color="green">194</FONT> * @return The node that is associated with the Source, or null if not found.<a name="line.194"></a> |
| <FONT color="green">195</FONT> */<a name="line.195"></a> |
| <FONT color="green">196</FONT> public int getNode(Source source)<a name="line.196"></a> |
| <FONT color="green">197</FONT> {<a name="line.197"></a> |
| <FONT color="green">198</FONT> <a name="line.198"></a> |
| <FONT color="green">199</FONT> // if (source instanceof DOMSource)<a name="line.199"></a> |
| <FONT color="green">200</FONT> // return ((DOMSource) source).getNode();<a name="line.200"></a> |
| <FONT color="green">201</FONT> <a name="line.201"></a> |
| <FONT color="green">202</FONT> // TODO: Not sure if the BaseID is really the same thing as the ID.<a name="line.202"></a> |
| <FONT color="green">203</FONT> String url = source.getSystemId();<a name="line.203"></a> |
| <FONT color="green">204</FONT> <a name="line.204"></a> |
| <FONT color="green">205</FONT> if (null == url)<a name="line.205"></a> |
| <FONT color="green">206</FONT> return DTM.NULL;<a name="line.206"></a> |
| <FONT color="green">207</FONT> <a name="line.207"></a> |
| <FONT color="green">208</FONT> int n = m_sourceTree.size();<a name="line.208"></a> |
| <FONT color="green">209</FONT> <a name="line.209"></a> |
| <FONT color="green">210</FONT> // System.out.println("getNode: "+n);<a name="line.210"></a> |
| <FONT color="green">211</FONT> for (int i = 0; i < n; i++)<a name="line.211"></a> |
| <FONT color="green">212</FONT> {<a name="line.212"></a> |
| <FONT color="green">213</FONT> SourceTree sTree = (SourceTree) m_sourceTree.elementAt(i);<a name="line.213"></a> |
| <FONT color="green">214</FONT> <a name="line.214"></a> |
| <FONT color="green">215</FONT> // System.out.println("getNode - url: "+url);<a name="line.215"></a> |
| <FONT color="green">216</FONT> // System.out.println("getNode - sTree.m_url: "+sTree.m_url);<a name="line.216"></a> |
| <FONT color="green">217</FONT> if (url.equals(sTree.m_url))<a name="line.217"></a> |
| <FONT color="green">218</FONT> return sTree.m_root;<a name="line.218"></a> |
| <FONT color="green">219</FONT> }<a name="line.219"></a> |
| <FONT color="green">220</FONT> <a name="line.220"></a> |
| <FONT color="green">221</FONT> // System.out.println("getNode - returning: "+node);<a name="line.221"></a> |
| <FONT color="green">222</FONT> return DTM.NULL;<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> /**<a name="line.225"></a> |
| <FONT color="green">226</FONT> * Get the source tree from the a base URL and a URL string.<a name="line.226"></a> |
| <FONT color="green">227</FONT> *<a name="line.227"></a> |
| <FONT color="green">228</FONT> * @param base The base URI to use if the urlString is relative.<a name="line.228"></a> |
| <FONT color="green">229</FONT> * @param urlString An absolute or relative URL string.<a name="line.229"></a> |
| <FONT color="green">230</FONT> * @param locator The location of the caller, for diagnostic purposes.<a name="line.230"></a> |
| <FONT color="green">231</FONT> *<a name="line.231"></a> |
| <FONT color="green">232</FONT> * @return should be a non-null reference to the node identified by the <a name="line.232"></a> |
| <FONT color="green">233</FONT> * base and urlString.<a name="line.233"></a> |
| <FONT color="green">234</FONT> *<a name="line.234"></a> |
| <FONT color="green">235</FONT> * @throws TransformerException If the URL can not resolve to a node.<a name="line.235"></a> |
| <FONT color="green">236</FONT> */<a name="line.236"></a> |
| <FONT color="green">237</FONT> public int getSourceTree(<a name="line.237"></a> |
| <FONT color="green">238</FONT> String base, String urlString, SourceLocator locator, XPathContext xctxt)<a name="line.238"></a> |
| <FONT color="green">239</FONT> throws TransformerException<a name="line.239"></a> |
| <FONT color="green">240</FONT> {<a name="line.240"></a> |
| <FONT color="green">241</FONT> <a name="line.241"></a> |
| <FONT color="green">242</FONT> // System.out.println("getSourceTree");<a name="line.242"></a> |
| <FONT color="green">243</FONT> try<a name="line.243"></a> |
| <FONT color="green">244</FONT> {<a name="line.244"></a> |
| <FONT color="green">245</FONT> Source source = this.resolveURI(base, urlString, locator);<a name="line.245"></a> |
| <FONT color="green">246</FONT> <a name="line.246"></a> |
| <FONT color="green">247</FONT> // System.out.println("getSourceTree - base: "+base+", urlString: "+urlString+", source: "+source.getSystemId());<a name="line.247"></a> |
| <FONT color="green">248</FONT> return getSourceTree(source, locator, xctxt);<a name="line.248"></a> |
| <FONT color="green">249</FONT> }<a name="line.249"></a> |
| <FONT color="green">250</FONT> catch (IOException ioe)<a name="line.250"></a> |
| <FONT color="green">251</FONT> {<a name="line.251"></a> |
| <FONT color="green">252</FONT> throw new TransformerException(ioe.getMessage(), locator, ioe);<a name="line.252"></a> |
| <FONT color="green">253</FONT> }<a name="line.253"></a> |
| <FONT color="green">254</FONT> <a name="line.254"></a> |
| <FONT color="green">255</FONT> /* catch (TransformerException te)<a name="line.255"></a> |
| <FONT color="green">256</FONT> {<a name="line.256"></a> |
| <FONT color="green">257</FONT> throw new TransformerException(te.getMessage(), locator, te);<a name="line.257"></a> |
| <FONT color="green">258</FONT> }*/<a name="line.258"></a> |
| <FONT color="green">259</FONT> }<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> * Get the source tree from the input source.<a name="line.262"></a> |
| <FONT color="green">263</FONT> *<a name="line.263"></a> |
| <FONT color="green">264</FONT> * @param source The Source object that should identify the desired node.<a name="line.264"></a> |
| <FONT color="green">265</FONT> * @param locator The location of the caller, for diagnostic purposes.<a name="line.265"></a> |
| <FONT color="green">266</FONT> *<a name="line.266"></a> |
| <FONT color="green">267</FONT> * @return non-null reference to a node.<a name="line.267"></a> |
| <FONT color="green">268</FONT> *<a name="line.268"></a> |
| <FONT color="green">269</FONT> * @throws TransformerException if the Source argument can't be resolved to <a name="line.269"></a> |
| <FONT color="green">270</FONT> * a node.<a name="line.270"></a> |
| <FONT color="green">271</FONT> */<a name="line.271"></a> |
| <FONT color="green">272</FONT> public int getSourceTree(Source source, SourceLocator locator, XPathContext xctxt)<a name="line.272"></a> |
| <FONT color="green">273</FONT> throws TransformerException<a name="line.273"></a> |
| <FONT color="green">274</FONT> {<a name="line.274"></a> |
| <FONT color="green">275</FONT> <a name="line.275"></a> |
| <FONT color="green">276</FONT> int n = getNode(source);<a name="line.276"></a> |
| <FONT color="green">277</FONT> <a name="line.277"></a> |
| <FONT color="green">278</FONT> if (DTM.NULL != n)<a name="line.278"></a> |
| <FONT color="green">279</FONT> return n;<a name="line.279"></a> |
| <FONT color="green">280</FONT> <a name="line.280"></a> |
| <FONT color="green">281</FONT> n = parseToNode(source, locator, xctxt);<a name="line.281"></a> |
| <FONT color="green">282</FONT> <a name="line.282"></a> |
| <FONT color="green">283</FONT> if (DTM.NULL != n)<a name="line.283"></a> |
| <FONT color="green">284</FONT> putDocumentInCache(n, source);<a name="line.284"></a> |
| <FONT color="green">285</FONT> <a name="line.285"></a> |
| <FONT color="green">286</FONT> return n;<a name="line.286"></a> |
| <FONT color="green">287</FONT> }<a name="line.287"></a> |
| <FONT color="green">288</FONT> <a name="line.288"></a> |
| <FONT color="green">289</FONT> /**<a name="line.289"></a> |
| <FONT color="green">290</FONT> * Try to create a DOM source tree from the input source.<a name="line.290"></a> |
| <FONT color="green">291</FONT> *<a name="line.291"></a> |
| <FONT color="green">292</FONT> * @param source The Source object that identifies the source node.<a name="line.292"></a> |
| <FONT color="green">293</FONT> * @param locator The location of the caller, for diagnostic purposes.<a name="line.293"></a> |
| <FONT color="green">294</FONT> *<a name="line.294"></a> |
| <FONT color="green">295</FONT> * @return non-null reference to node identified by the source argument.<a name="line.295"></a> |
| <FONT color="green">296</FONT> *<a name="line.296"></a> |
| <FONT color="green">297</FONT> * @throws TransformerException if the source argument can not be resolved <a name="line.297"></a> |
| <FONT color="green">298</FONT> * to a source node.<a name="line.298"></a> |
| <FONT color="green">299</FONT> */<a name="line.299"></a> |
| <FONT color="green">300</FONT> public int parseToNode(Source source, SourceLocator locator, XPathContext xctxt)<a name="line.300"></a> |
| <FONT color="green">301</FONT> throws TransformerException<a name="line.301"></a> |
| <FONT color="green">302</FONT> {<a name="line.302"></a> |
| <FONT color="green">303</FONT> <a name="line.303"></a> |
| <FONT color="green">304</FONT> try<a name="line.304"></a> |
| <FONT color="green">305</FONT> { <a name="line.305"></a> |
| <FONT color="green">306</FONT> Object xowner = xctxt.getOwnerObject();<a name="line.306"></a> |
| <FONT color="green">307</FONT> DTM dtm;<a name="line.307"></a> |
| <FONT color="green">308</FONT> if(null != xowner && xowner instanceof org.apache.xml.dtm.DTMWSFilter)<a name="line.308"></a> |
| <FONT color="green">309</FONT> {<a name="line.309"></a> |
| <FONT color="green">310</FONT> dtm = xctxt.getDTM(source, false, <a name="line.310"></a> |
| <FONT color="green">311</FONT> (org.apache.xml.dtm.DTMWSFilter)xowner, false, true);<a name="line.311"></a> |
| <FONT color="green">312</FONT> }<a name="line.312"></a> |
| <FONT color="green">313</FONT> else<a name="line.313"></a> |
| <FONT color="green">314</FONT> {<a name="line.314"></a> |
| <FONT color="green">315</FONT> dtm = xctxt.getDTM(source, false, null, false, true);<a name="line.315"></a> |
| <FONT color="green">316</FONT> }<a name="line.316"></a> |
| <FONT color="green">317</FONT> return dtm.getDocument();<a name="line.317"></a> |
| <FONT color="green">318</FONT> }<a name="line.318"></a> |
| <FONT color="green">319</FONT> catch (Exception e)<a name="line.319"></a> |
| <FONT color="green">320</FONT> {<a name="line.320"></a> |
| <FONT color="green">321</FONT> //e.printStackTrace();<a name="line.321"></a> |
| <FONT color="green">322</FONT> throw new TransformerException(e.getMessage(), locator, e);<a name="line.322"></a> |
| <FONT color="green">323</FONT> }<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> <a name="line.326"></a> |
| <FONT color="green">327</FONT> /**<a name="line.327"></a> |
| <FONT color="green">328</FONT> * This method returns the SAX2 parser to use with the InputSource<a name="line.328"></a> |
| <FONT color="green">329</FONT> * obtained from this URI.<a name="line.329"></a> |
| <FONT color="green">330</FONT> * It may return null if any SAX2-conformant XML parser can be used,<a name="line.330"></a> |
| <FONT color="green">331</FONT> * or if getInputSource() will also return null. The parser must<a name="line.331"></a> |
| <FONT color="green">332</FONT> * be free for use (i.e.<a name="line.332"></a> |
| <FONT color="green">333</FONT> * not currently in use for another parse().<a name="line.333"></a> |
| <FONT color="green">334</FONT> *<a name="line.334"></a> |
| <FONT color="green">335</FONT> * @param inputSource The value returned from the URIResolver.<a name="line.335"></a> |
| <FONT color="green">336</FONT> * @return a SAX2 XMLReader to use to resolve the inputSource argument.<a name="line.336"></a> |
| <FONT color="green">337</FONT> * @param locator The location of the original caller, for diagnostic purposes.<a name="line.337"></a> |
| <FONT color="green">338</FONT> *<a name="line.338"></a> |
| <FONT color="green">339</FONT> * @throws TransformerException if the reader can not be created.<a name="line.339"></a> |
| <FONT color="green">340</FONT> */<a name="line.340"></a> |
| <FONT color="green">341</FONT> public static XMLReader getXMLReader(Source inputSource, SourceLocator locator)<a name="line.341"></a> |
| <FONT color="green">342</FONT> throws TransformerException<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> try<a name="line.345"></a> |
| <FONT color="green">346</FONT> {<a name="line.346"></a> |
| <FONT color="green">347</FONT> XMLReader reader = (inputSource instanceof SAXSource)<a name="line.347"></a> |
| <FONT color="green">348</FONT> ? ((SAXSource) inputSource).getXMLReader() : null;<a name="line.348"></a> |
| <FONT color="green">349</FONT> <a name="line.349"></a> |
| <FONT color="green">350</FONT> if (null == reader)<a name="line.350"></a> |
| <FONT color="green">351</FONT> {<a name="line.351"></a> |
| <FONT color="green">352</FONT> try {<a name="line.352"></a> |
| <FONT color="green">353</FONT> javax.xml.parsers.SAXParserFactory factory=<a name="line.353"></a> |
| <FONT color="green">354</FONT> javax.xml.parsers.SAXParserFactory.newInstance();<a name="line.354"></a> |
| <FONT color="green">355</FONT> factory.setNamespaceAware( true );<a name="line.355"></a> |
| <FONT color="green">356</FONT> javax.xml.parsers.SAXParser jaxpParser=<a name="line.356"></a> |
| <FONT color="green">357</FONT> factory.newSAXParser();<a name="line.357"></a> |
| <FONT color="green">358</FONT> reader=jaxpParser.getXMLReader();<a name="line.358"></a> |
| <FONT color="green">359</FONT> <a name="line.359"></a> |
| <FONT color="green">360</FONT> } catch( javax.xml.parsers.ParserConfigurationException ex ) {<a name="line.360"></a> |
| <FONT color="green">361</FONT> throw new org.xml.sax.SAXException( ex );<a name="line.361"></a> |
| <FONT color="green">362</FONT> } catch( javax.xml.parsers.FactoryConfigurationError ex1 ) {<a name="line.362"></a> |
| <FONT color="green">363</FONT> throw new org.xml.sax.SAXException( ex1.toString() );<a name="line.363"></a> |
| <FONT color="green">364</FONT> } catch( NoSuchMethodError ex2 ) {<a name="line.364"></a> |
| <FONT color="green">365</FONT> }<a name="line.365"></a> |
| <FONT color="green">366</FONT> catch (AbstractMethodError ame){}<a name="line.366"></a> |
| <FONT color="green">367</FONT> if(null == reader)<a name="line.367"></a> |
| <FONT color="green">368</FONT> reader = XMLReaderFactory.createXMLReader();<a name="line.368"></a> |
| <FONT color="green">369</FONT> }<a name="line.369"></a> |
| <FONT color="green">370</FONT> <a name="line.370"></a> |
| <FONT color="green">371</FONT> try<a name="line.371"></a> |
| <FONT color="green">372</FONT> {<a name="line.372"></a> |
| <FONT color="green">373</FONT> reader.setFeature("http://xml.org/sax/features/namespace-prefixes",<a name="line.373"></a> |
| <FONT color="green">374</FONT> true);<a name="line.374"></a> |
| <FONT color="green">375</FONT> }<a name="line.375"></a> |
| <FONT color="green">376</FONT> catch (org.xml.sax.SAXException se)<a name="line.376"></a> |
| <FONT color="green">377</FONT> {<a name="line.377"></a> |
| <FONT color="green">378</FONT> <a name="line.378"></a> |
| <FONT color="green">379</FONT> // What can we do?<a name="line.379"></a> |
| <FONT color="green">380</FONT> // TODO: User diagnostics.<a name="line.380"></a> |
| <FONT color="green">381</FONT> }<a name="line.381"></a> |
| <FONT color="green">382</FONT> <a name="line.382"></a> |
| <FONT color="green">383</FONT> return reader;<a name="line.383"></a> |
| <FONT color="green">384</FONT> }<a name="line.384"></a> |
| <FONT color="green">385</FONT> catch (org.xml.sax.SAXException se)<a name="line.385"></a> |
| <FONT color="green">386</FONT> {<a name="line.386"></a> |
| <FONT color="green">387</FONT> throw new TransformerException(se.getMessage(), locator, se);<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> |
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| </PRE> |
| </BODY> |
| </HTML> |
