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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: SAX2RTFDTM.java 468653 2006-10-28 07:07:05Z 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.dtm.ref.sax2dtm;<a name="line.21"></a> |
| <FONT color="green">022</FONT> <a name="line.22"></a> |
| <FONT color="green">023</FONT> import javax.xml.transform.Source;<a name="line.23"></a> |
| <FONT color="green">024</FONT> <a name="line.24"></a> |
| <FONT color="green">025</FONT> import org.apache.xml.dtm.DTM;<a name="line.25"></a> |
| <FONT color="green">026</FONT> import org.apache.xml.dtm.DTMManager;<a name="line.26"></a> |
| <FONT color="green">027</FONT> import org.apache.xml.dtm.DTMWSFilter;<a name="line.27"></a> |
| <FONT color="green">028</FONT> import org.apache.xml.utils.IntStack;<a name="line.28"></a> |
| <FONT color="green">029</FONT> import org.apache.xml.utils.IntVector;<a name="line.29"></a> |
| <FONT color="green">030</FONT> import org.apache.xml.utils.StringVector;<a name="line.30"></a> |
| <FONT color="green">031</FONT> import org.apache.xml.utils.XMLStringFactory;<a name="line.31"></a> |
| <FONT color="green">032</FONT> <a name="line.32"></a> |
| <FONT color="green">033</FONT> import org.xml.sax.SAXException;<a name="line.33"></a> |
| <FONT color="green">034</FONT> <a name="line.34"></a> |
| <FONT color="green">035</FONT> /**<a name="line.35"></a> |
| <FONT color="green">036</FONT> * This is a subclass of SAX2DTM which has been modified to meet the needs of<a name="line.36"></a> |
| <FONT color="green">037</FONT> * Result Tree Frameworks (RTFs). The differences are:<a name="line.37"></a> |
| <FONT color="green">038</FONT> *<a name="line.38"></a> |
| <FONT color="green">039</FONT> * 1) Multiple XML trees may be appended to the single DTM. This means<a name="line.39"></a> |
| <FONT color="green">040</FONT> * that the root node of each document is _not_ node 0. Some code has<a name="line.40"></a> |
| <FONT color="green">041</FONT> * had to be deoptimized to support this mode of operation, and an<a name="line.41"></a> |
| <FONT color="green">042</FONT> * explicit mechanism for obtaining the Node Handle of the root node<a name="line.42"></a> |
| <FONT color="green">043</FONT> * has been provided.<a name="line.43"></a> |
| <FONT color="green">044</FONT> *<a name="line.44"></a> |
| <FONT color="green">045</FONT> * 2) A stack of these documents is maintained, allowing us to "tail-prune" the<a name="line.45"></a> |
| <FONT color="green">046</FONT> * most recently added trees off the end of the DTM as stylesheet elements <a name="line.46"></a> |
| <FONT color="green">047</FONT> * (and thus variable contexts) are exited.<a name="line.47"></a> |
| <FONT color="green">048</FONT> *<a name="line.48"></a> |
| <FONT color="green">049</FONT> * PLEASE NOTE that this class may be _heavily_ dependent upon the<a name="line.49"></a> |
| <FONT color="green">050</FONT> * internals of the SAX2DTM superclass, and must be maintained in<a name="line.50"></a> |
| <FONT color="green">051</FONT> * parallel with that code. Arguably, they should be conditionals<a name="line.51"></a> |
| <FONT color="green">052</FONT> * within a single class... but they have deen separated for<a name="line.52"></a> |
| <FONT color="green">053</FONT> * performance reasons. (In fact, one could even argue about which is<a name="line.53"></a> |
| <FONT color="green">054</FONT> * the superclass and which is the subclass; the current arrangement<a name="line.54"></a> |
| <FONT color="green">055</FONT> * is as much about preserving stability of existing code during<a name="line.55"></a> |
| <FONT color="green">056</FONT> * development as anything else.)<a name="line.56"></a> |
| <FONT color="green">057</FONT> * <a name="line.57"></a> |
| <FONT color="green">058</FONT> * %REVIEW% In fact, since the differences are so minor, I think it<a name="line.58"></a> |
| <FONT color="green">059</FONT> * may be possible/practical to fold them back into the base<a name="line.59"></a> |
| <FONT color="green">060</FONT> * SAX2DTM. Consider that as a future code-size optimization.<a name="line.60"></a> |
| <FONT color="green">061</FONT> * */<a name="line.61"></a> |
| <FONT color="green">062</FONT> public class SAX2RTFDTM extends SAX2DTM<a name="line.62"></a> |
| <FONT color="green">063</FONT> {<a name="line.63"></a> |
| <FONT color="green">064</FONT> /** Set true to monitor SAX events and similar diagnostic info. */<a name="line.64"></a> |
| <FONT color="green">065</FONT> private static final boolean DEBUG = false;<a name="line.65"></a> |
| <FONT color="green">066</FONT> <a name="line.66"></a> |
| <FONT color="green">067</FONT> /** Most recently started Document, or null if the DTM is empty. */<a name="line.67"></a> |
| <FONT color="green">068</FONT> private int m_currentDocumentNode=NULL;<a name="line.68"></a> |
| <FONT color="green">069</FONT> <a name="line.69"></a> |
| <FONT color="green">070</FONT> /** Tail-pruning mark: Number of nodes in use */<a name="line.70"></a> |
| <FONT color="green">071</FONT> IntStack mark_size=new IntStack();<a name="line.71"></a> |
| <FONT color="green">072</FONT> /** Tail-pruning mark: Number of data items in use */<a name="line.72"></a> |
| <FONT color="green">073</FONT> IntStack mark_data_size=new IntStack();<a name="line.73"></a> |
| <FONT color="green">074</FONT> /** Tail-pruning mark: Number of size-of-data fields in use */<a name="line.74"></a> |
| <FONT color="green">075</FONT> IntStack mark_char_size=new IntStack();<a name="line.75"></a> |
| <FONT color="green">076</FONT> /** Tail-pruning mark: Number of dataOrQName slots in use */<a name="line.76"></a> |
| <FONT color="green">077</FONT> IntStack mark_doq_size=new IntStack();<a name="line.77"></a> |
| <FONT color="green">078</FONT> /** Tail-pruning mark: Number of namespace declaration sets in use<a name="line.78"></a> |
| <FONT color="green">079</FONT> * %REVIEW% I don't think number of NS sets is ever different from number<a name="line.79"></a> |
| <FONT color="green">080</FONT> * of NS elements. We can probabably reduce these to a single stack and save<a name="line.80"></a> |
| <FONT color="green">081</FONT> * some storage.<a name="line.81"></a> |
| <FONT color="green">082</FONT> * */<a name="line.82"></a> |
| <FONT color="green">083</FONT> IntStack mark_nsdeclset_size=new IntStack();<a name="line.83"></a> |
| <FONT color="green">084</FONT> /** Tail-pruning mark: Number of naespace declaration elements in use<a name="line.84"></a> |
| <FONT color="green">085</FONT> * %REVIEW% I don't think number of NS sets is ever different from number<a name="line.85"></a> |
| <FONT color="green">086</FONT> * of NS elements. We can probabably reduce these to a single stack and save<a name="line.86"></a> |
| <FONT color="green">087</FONT> * some storage.<a name="line.87"></a> |
| <FONT color="green">088</FONT> */<a name="line.88"></a> |
| <FONT color="green">089</FONT> IntStack mark_nsdeclelem_size=new IntStack();<a name="line.89"></a> |
| <FONT color="green">090</FONT> <a name="line.90"></a> |
| <FONT color="green">091</FONT> /**<a name="line.91"></a> |
| <FONT color="green">092</FONT> * Tail-pruning mark: initial number of nodes in use<a name="line.92"></a> |
| <FONT color="green">093</FONT> */<a name="line.93"></a> |
| <FONT color="green">094</FONT> int m_emptyNodeCount;<a name="line.94"></a> |
| <FONT color="green">095</FONT> <a name="line.95"></a> |
| <FONT color="green">096</FONT> /**<a name="line.96"></a> |
| <FONT color="green">097</FONT> * Tail-pruning mark: initial number of namespace declaration sets<a name="line.97"></a> |
| <FONT color="green">098</FONT> */<a name="line.98"></a> |
| <FONT color="green">099</FONT> int m_emptyNSDeclSetCount;<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> * Tail-pruning mark: initial number of namespace declaration elements<a name="line.102"></a> |
| <FONT color="green">103</FONT> */<a name="line.103"></a> |
| <FONT color="green">104</FONT> int m_emptyNSDeclSetElemsCount;<a name="line.104"></a> |
| <FONT color="green">105</FONT> <a name="line.105"></a> |
| <FONT color="green">106</FONT> /**<a name="line.106"></a> |
| <FONT color="green">107</FONT> * Tail-pruning mark: initial number of data items in use<a name="line.107"></a> |
| <FONT color="green">108</FONT> */<a name="line.108"></a> |
| <FONT color="green">109</FONT> int m_emptyDataCount;<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> * Tail-pruning mark: initial number of characters in use<a name="line.112"></a> |
| <FONT color="green">113</FONT> */<a name="line.113"></a> |
| <FONT color="green">114</FONT> int m_emptyCharsCount;<a name="line.114"></a> |
| <FONT color="green">115</FONT> <a name="line.115"></a> |
| <FONT color="green">116</FONT> /**<a name="line.116"></a> |
| <FONT color="green">117</FONT> * Tail-pruning mark: default initial number of dataOrQName slots in use<a name="line.117"></a> |
| <FONT color="green">118</FONT> */<a name="line.118"></a> |
| <FONT color="green">119</FONT> int m_emptyDataQNCount;<a name="line.119"></a> |
| <FONT color="green">120</FONT> <a name="line.120"></a> |
| <FONT color="green">121</FONT> public SAX2RTFDTM(DTMManager mgr, Source source, int dtmIdentity,<a name="line.121"></a> |
| <FONT color="green">122</FONT> DTMWSFilter whiteSpaceFilter,<a name="line.122"></a> |
| <FONT color="green">123</FONT> XMLStringFactory xstringfactory,<a name="line.123"></a> |
| <FONT color="green">124</FONT> boolean doIndexing)<a name="line.124"></a> |
| <FONT color="green">125</FONT> {<a name="line.125"></a> |
| <FONT color="green">126</FONT> super(mgr, source, dtmIdentity, whiteSpaceFilter, <a name="line.126"></a> |
| <FONT color="green">127</FONT> xstringfactory, doIndexing);<a name="line.127"></a> |
| <FONT color="green">128</FONT> <a name="line.128"></a> |
| <FONT color="green">129</FONT> // NEVER track source locators for RTFs; they aren't meaningful. I think.<a name="line.129"></a> |
| <FONT color="green">130</FONT> // (If we did track them, we'd need to tail-prune these too.)<a name="line.130"></a> |
| <FONT color="green">131</FONT> //org.apache.xalan.processor.TransformerFactoryImpl.m_source_location;<a name="line.131"></a> |
| <FONT color="green">132</FONT> m_useSourceLocationProperty=false;<a name="line.132"></a> |
| <FONT color="green">133</FONT> m_sourceSystemId = (m_useSourceLocationProperty) ? new StringVector()<a name="line.133"></a> |
| <FONT color="green">134</FONT> : null;<a name="line.134"></a> |
| <FONT color="green">135</FONT> m_sourceLine = (m_useSourceLocationProperty) ? new IntVector() : null;<a name="line.135"></a> |
| <FONT color="green">136</FONT> m_sourceColumn = (m_useSourceLocationProperty) ? new IntVector() : null;<a name="line.136"></a> |
| <FONT color="green">137</FONT> <a name="line.137"></a> |
| <FONT color="green">138</FONT> // Record initial sizes of fields that are pushed and restored<a name="line.138"></a> |
| <FONT color="green">139</FONT> // for RTF tail-pruning. More entries can be popped than pushed, so<a name="line.139"></a> |
| <FONT color="green">140</FONT> // we need this to mark the primordial state of the DTM.<a name="line.140"></a> |
| <FONT color="green">141</FONT> m_emptyNodeCount = m_size;<a name="line.141"></a> |
| <FONT color="green">142</FONT> m_emptyNSDeclSetCount = (m_namespaceDeclSets == null)<a name="line.142"></a> |
| <FONT color="green">143</FONT> ? 0 : m_namespaceDeclSets.size();<a name="line.143"></a> |
| <FONT color="green">144</FONT> m_emptyNSDeclSetElemsCount = (m_namespaceDeclSetElements == null)<a name="line.144"></a> |
| <FONT color="green">145</FONT> ? 0 : m_namespaceDeclSetElements.size();<a name="line.145"></a> |
| <FONT color="green">146</FONT> m_emptyDataCount = m_data.size();<a name="line.146"></a> |
| <FONT color="green">147</FONT> m_emptyCharsCount = m_chars.size();<a name="line.147"></a> |
| <FONT color="green">148</FONT> m_emptyDataQNCount = m_dataOrQName.size();<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> /**<a name="line.151"></a> |
| <FONT color="green">152</FONT> * Given a DTM, find the owning document node. In the case of<a name="line.152"></a> |
| <FONT color="green">153</FONT> * SAX2RTFDTM, which may contain multiple documents, this returns<a name="line.153"></a> |
| <FONT color="green">154</FONT> * the <b>most recently started</b> document, or null if the DTM is<a name="line.154"></a> |
| <FONT color="green">155</FONT> * empty or no document is currently under construction.<a name="line.155"></a> |
| <FONT color="green">156</FONT> *<a name="line.156"></a> |
| <FONT color="green">157</FONT> * %REVIEW% Should we continue to report the most recent after<a name="line.157"></a> |
| <FONT color="green">158</FONT> * construction has ended? I think not, given that it may have been<a name="line.158"></a> |
| <FONT color="green">159</FONT> * tail-pruned.<a name="line.159"></a> |
| <FONT color="green">160</FONT> *<a name="line.160"></a> |
| <FONT color="green">161</FONT> * @return int Node handle of Document node, or null if this DTM does not<a name="line.161"></a> |
| <FONT color="green">162</FONT> * contain an "active" document.<a name="line.162"></a> |
| <FONT color="green">163</FONT> * */<a name="line.163"></a> |
| <FONT color="green">164</FONT> public int getDocument()<a name="line.164"></a> |
| <FONT color="green">165</FONT> {<a name="line.165"></a> |
| <FONT color="green">166</FONT> return makeNodeHandle(m_currentDocumentNode);<a name="line.166"></a> |
| <FONT color="green">167</FONT> }<a name="line.167"></a> |
| <FONT color="green">168</FONT> <a name="line.168"></a> |
| <FONT color="green">169</FONT> /**<a name="line.169"></a> |
| <FONT color="green">170</FONT> * Given a node handle, find the owning document node, using DTM semantics<a name="line.170"></a> |
| <FONT color="green">171</FONT> * (Document owns itself) rather than DOM semantics (Document has no owner).<a name="line.171"></a> |
| <FONT color="green">172</FONT> *<a name="line.172"></a> |
| <FONT color="green">173</FONT> * (I'm counting on the fact that getOwnerDocument() is implemented on top<a name="line.173"></a> |
| <FONT color="green">174</FONT> * of this call, in the superclass, to avoid having to rewrite that one.<a name="line.174"></a> |
| <FONT color="green">175</FONT> * Be careful if that code changes!)<a name="line.175"></a> |
| <FONT color="green">176</FONT> *<a name="line.176"></a> |
| <FONT color="green">177</FONT> * @param nodeHandle the id of the node.<a name="line.177"></a> |
| <FONT color="green">178</FONT> * @return int Node handle of owning document<a name="line.178"></a> |
| <FONT color="green">179</FONT> */<a name="line.179"></a> |
| <FONT color="green">180</FONT> public int getDocumentRoot(int nodeHandle)<a name="line.180"></a> |
| <FONT color="green">181</FONT> {<a name="line.181"></a> |
| <FONT color="green">182</FONT> for (int id=makeNodeIdentity(nodeHandle); id!=NULL; id=_parent(id)) {<a name="line.182"></a> |
| <FONT color="green">183</FONT> if (_type(id)==DTM.DOCUMENT_NODE) {<a name="line.183"></a> |
| <FONT color="green">184</FONT> return makeNodeHandle(id);<a name="line.184"></a> |
| <FONT color="green">185</FONT> }<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> return DTM.NULL; // Safety net; should never happen<a name="line.188"></a> |
| <FONT color="green">189</FONT> }<a name="line.189"></a> |
| <FONT color="green">190</FONT> <a name="line.190"></a> |
| <FONT color="green">191</FONT> /**<a name="line.191"></a> |
| <FONT color="green">192</FONT> * Given a node identifier, find the owning document node. Unlike the DOM,<a name="line.192"></a> |
| <FONT color="green">193</FONT> * this considers the owningDocument of a Document to be itself. Note that<a name="line.193"></a> |
| <FONT color="green">194</FONT> * in shared DTMs this may not be zero.<a name="line.194"></a> |
| <FONT color="green">195</FONT> *<a name="line.195"></a> |
| <FONT color="green">196</FONT> * @param nodeIdentifier the id of the starting node.<a name="line.196"></a> |
| <FONT color="green">197</FONT> * @return int Node identifier of the root of this DTM tree<a name="line.197"></a> |
| <FONT color="green">198</FONT> */<a name="line.198"></a> |
| <FONT color="green">199</FONT> protected int _documentRoot(int nodeIdentifier)<a name="line.199"></a> |
| <FONT color="green">200</FONT> {<a name="line.200"></a> |
| <FONT color="green">201</FONT> if(nodeIdentifier==NULL) return NULL;<a name="line.201"></a> |
| <FONT color="green">202</FONT> <a name="line.202"></a> |
| <FONT color="green">203</FONT> for (int parent=_parent(nodeIdentifier);<a name="line.203"></a> |
| <FONT color="green">204</FONT> parent!=NULL;<a name="line.204"></a> |
| <FONT color="green">205</FONT> nodeIdentifier=parent,parent=_parent(nodeIdentifier))<a name="line.205"></a> |
| <FONT color="green">206</FONT> ;<a name="line.206"></a> |
| <FONT color="green">207</FONT> <a name="line.207"></a> |
| <FONT color="green">208</FONT> return nodeIdentifier;<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> /**<a name="line.211"></a> |
| <FONT color="green">212</FONT> * Receive notification of the beginning of a new RTF document.<a name="line.212"></a> |
| <FONT color="green">213</FONT> *<a name="line.213"></a> |
| <FONT color="green">214</FONT> * %REVIEW% Y'know, this isn't all that much of a deoptimization. We<a name="line.214"></a> |
| <FONT color="green">215</FONT> * might want to consider folding the start/endDocument changes back<a name="line.215"></a> |
| <FONT color="green">216</FONT> * into the main SAX2DTM so we don't have to expose so many fields<a name="line.216"></a> |
| <FONT color="green">217</FONT> * (even as Protected) and carry the additional code.<a name="line.217"></a> |
| <FONT color="green">218</FONT> *<a name="line.218"></a> |
| <FONT color="green">219</FONT> * @throws SAXException Any SAX exception, possibly<a name="line.219"></a> |
| <FONT color="green">220</FONT> * wrapping another exception.<a name="line.220"></a> |
| <FONT color="green">221</FONT> * @see org.xml.sax.ContentHandler#startDocument<a name="line.221"></a> |
| <FONT color="green">222</FONT> * */<a name="line.222"></a> |
| <FONT color="green">223</FONT> public void startDocument() throws SAXException<a name="line.223"></a> |
| <FONT color="green">224</FONT> {<a name="line.224"></a> |
| <FONT color="green">225</FONT> // Re-initialize the tree append process<a name="line.225"></a> |
| <FONT color="green">226</FONT> m_endDocumentOccured = false;<a name="line.226"></a> |
| <FONT color="green">227</FONT> m_prefixMappings = new java.util.Vector();<a name="line.227"></a> |
| <FONT color="green">228</FONT> m_contextIndexes = new IntStack();<a name="line.228"></a> |
| <FONT color="green">229</FONT> m_parents = new IntStack();<a name="line.229"></a> |
| <FONT color="green">230</FONT> <a name="line.230"></a> |
| <FONT color="green">231</FONT> m_currentDocumentNode=m_size;<a name="line.231"></a> |
| <FONT color="green">232</FONT> super.startDocument();<a name="line.232"></a> |
| <FONT color="green">233</FONT> }<a name="line.233"></a> |
| <FONT color="green">234</FONT> <a name="line.234"></a> |
| <FONT color="green">235</FONT> /**<a name="line.235"></a> |
| <FONT color="green">236</FONT> * Receive notification of the end of the document.<a name="line.236"></a> |
| <FONT color="green">237</FONT> *<a name="line.237"></a> |
| <FONT color="green">238</FONT> * %REVIEW% Y'know, this isn't all that much of a deoptimization. We<a name="line.238"></a> |
| <FONT color="green">239</FONT> * might want to consider folding the start/endDocument changes back<a name="line.239"></a> |
| <FONT color="green">240</FONT> * into the main SAX2DTM so we don't have to expose so many fields<a name="line.240"></a> |
| <FONT color="green">241</FONT> * (even as Protected).<a name="line.241"></a> |
| <FONT color="green">242</FONT> *<a name="line.242"></a> |
| <FONT color="green">243</FONT> * @throws SAXException Any SAX exception, possibly<a name="line.243"></a> |
| <FONT color="green">244</FONT> * wrapping another exception.<a name="line.244"></a> |
| <FONT color="green">245</FONT> * @see org.xml.sax.ContentHandler#endDocument<a name="line.245"></a> |
| <FONT color="green">246</FONT> * */<a name="line.246"></a> |
| <FONT color="green">247</FONT> public void endDocument() throws SAXException<a name="line.247"></a> |
| <FONT color="green">248</FONT> {<a name="line.248"></a> |
| <FONT color="green">249</FONT> charactersFlush();<a name="line.249"></a> |
| <FONT color="green">250</FONT> <a name="line.250"></a> |
| <FONT color="green">251</FONT> m_nextsib.setElementAt(NULL,m_currentDocumentNode);<a name="line.251"></a> |
| <FONT color="green">252</FONT> <a name="line.252"></a> |
| <FONT color="green">253</FONT> if (m_firstch.elementAt(m_currentDocumentNode) == NOTPROCESSED)<a name="line.253"></a> |
| <FONT color="green">254</FONT> m_firstch.setElementAt(NULL,m_currentDocumentNode);<a name="line.254"></a> |
| <FONT color="green">255</FONT> <a name="line.255"></a> |
| <FONT color="green">256</FONT> if (DTM.NULL != m_previous)<a name="line.256"></a> |
| <FONT color="green">257</FONT> m_nextsib.setElementAt(DTM.NULL,m_previous);<a name="line.257"></a> |
| <FONT color="green">258</FONT> <a name="line.258"></a> |
| <FONT color="green">259</FONT> m_parents = null;<a name="line.259"></a> |
| <FONT color="green">260</FONT> m_prefixMappings = null;<a name="line.260"></a> |
| <FONT color="green">261</FONT> m_contextIndexes = null;<a name="line.261"></a> |
| <FONT color="green">262</FONT> <a name="line.262"></a> |
| <FONT color="green">263</FONT> m_currentDocumentNode= NULL; // no longer open<a name="line.263"></a> |
| <FONT color="green">264</FONT> m_endDocumentOccured = true;<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> <a name="line.267"></a> |
| <FONT color="green">268</FONT> /** "Tail-pruning" support for RTFs.<a name="line.268"></a> |
| <FONT color="green">269</FONT> *<a name="line.269"></a> |
| <FONT color="green">270</FONT> * This function pushes information about the current size of the<a name="line.270"></a> |
| <FONT color="green">271</FONT> * DTM's data structures onto a stack, for use by popRewindMark()<a name="line.271"></a> |
| <FONT color="green">272</FONT> * (which see).<a name="line.272"></a> |
| <FONT color="green">273</FONT> *<a name="line.273"></a> |
| <FONT color="green">274</FONT> * %REVIEW% I have no idea how to rewind m_elemIndexes. However,<a name="line.274"></a> |
| <FONT color="green">275</FONT> * RTFs will not be indexed, so I can simply panic if that case<a name="line.275"></a> |
| <FONT color="green">276</FONT> * arises. Hey, it works...<a name="line.276"></a> |
| <FONT color="green">277</FONT> * */<a name="line.277"></a> |
| <FONT color="green">278</FONT> public void pushRewindMark()<a name="line.278"></a> |
| <FONT color="green">279</FONT> {<a name="line.279"></a> |
| <FONT color="green">280</FONT> if(m_indexing || m_elemIndexes!=null)<a name="line.280"></a> |
| <FONT color="green">281</FONT> throw new java.lang.NullPointerException("Coding error; Don't try to mark/rewind an indexed DTM");<a name="line.281"></a> |
| <FONT color="green">282</FONT> <a name="line.282"></a> |
| <FONT color="green">283</FONT> // Values from DTMDefaultBase<a name="line.283"></a> |
| <FONT color="green">284</FONT> // %REVIEW% Can the namespace stack sizes ever differ? If not, save space!<a name="line.284"></a> |
| <FONT color="green">285</FONT> mark_size.push(m_size);<a name="line.285"></a> |
| <FONT color="green">286</FONT> mark_nsdeclset_size.push((m_namespaceDeclSets==null)<a name="line.286"></a> |
| <FONT color="green">287</FONT> ? 0<a name="line.287"></a> |
| <FONT color="green">288</FONT> : m_namespaceDeclSets.size());<a name="line.288"></a> |
| <FONT color="green">289</FONT> mark_nsdeclelem_size.push((m_namespaceDeclSetElements==null)<a name="line.289"></a> |
| <FONT color="green">290</FONT> ? 0<a name="line.290"></a> |
| <FONT color="green">291</FONT> : m_namespaceDeclSetElements.size());<a name="line.291"></a> |
| <FONT color="green">292</FONT> <a name="line.292"></a> |
| <FONT color="green">293</FONT> // Values from SAX2DTM<a name="line.293"></a> |
| <FONT color="green">294</FONT> mark_data_size.push(m_data.size());<a name="line.294"></a> |
| <FONT color="green">295</FONT> mark_char_size.push(m_chars.size());<a name="line.295"></a> |
| <FONT color="green">296</FONT> mark_doq_size.push(m_dataOrQName.size());<a name="line.296"></a> |
| <FONT color="green">297</FONT> }<a name="line.297"></a> |
| <FONT color="green">298</FONT> <a name="line.298"></a> |
| <FONT color="green">299</FONT> /** "Tail-pruning" support for RTFs.<a name="line.299"></a> |
| <FONT color="green">300</FONT> *<a name="line.300"></a> |
| <FONT color="green">301</FONT> * This function pops the information previously saved by<a name="line.301"></a> |
| <FONT color="green">302</FONT> * pushRewindMark (which see) and uses it to discard all nodes added<a name="line.302"></a> |
| <FONT color="green">303</FONT> * to the DTM after that time. We expect that this will allow us to<a name="line.303"></a> |
| <FONT color="green">304</FONT> * reuse storage more effectively.<a name="line.304"></a> |
| <FONT color="green">305</FONT> *<a name="line.305"></a> |
| <FONT color="green">306</FONT> * This is _not_ intended to be called while a document is still being<a name="line.306"></a> |
| <FONT color="green">307</FONT> * constructed -- only between endDocument and the next startDocument<a name="line.307"></a> |
| <FONT color="green">308</FONT> *<a name="line.308"></a> |
| <FONT color="green">309</FONT> * %REVIEW% WARNING: This is the first use of some of the truncation<a name="line.309"></a> |
| <FONT color="green">310</FONT> * methods. If Xalan blows up after this is called, that's a likely<a name="line.310"></a> |
| <FONT color="green">311</FONT> * place to check.<a name="line.311"></a> |
| <FONT color="green">312</FONT> *<a name="line.312"></a> |
| <FONT color="green">313</FONT> * %REVIEW% Our original design for DTMs permitted them to share<a name="line.313"></a> |
| <FONT color="green">314</FONT> * string pools. If there any risk that this might be happening, we<a name="line.314"></a> |
| <FONT color="green">315</FONT> * can _not_ rewind and recover the string storage. One solution<a name="line.315"></a> |
| <FONT color="green">316</FONT> * might to assert that DTMs used for RTFs Must Not take advantage<a name="line.316"></a> |
| <FONT color="green">317</FONT> * of that feature, but this seems excessively fragile. Another, much<a name="line.317"></a> |
| <FONT color="green">318</FONT> * less attractive, would be to just let them leak... Nah.<a name="line.318"></a> |
| <FONT color="green">319</FONT> *<a name="line.319"></a> |
| <FONT color="green">320</FONT> * @return true if and only if the pop completely emptied the<a name="line.320"></a> |
| <FONT color="green">321</FONT> * RTF. That response is used when determining how to unspool<a name="line.321"></a> |
| <FONT color="green">322</FONT> * RTF-started-while-RTF-open situations.<a name="line.322"></a> |
| <FONT color="green">323</FONT> * */<a name="line.323"></a> |
| <FONT color="green">324</FONT> public boolean popRewindMark()<a name="line.324"></a> |
| <FONT color="green">325</FONT> {<a name="line.325"></a> |
| <FONT color="green">326</FONT> boolean top=mark_size.empty();<a name="line.326"></a> |
| <FONT color="green">327</FONT> <a name="line.327"></a> |
| <FONT color="green">328</FONT> m_size=top ? m_emptyNodeCount : mark_size.pop();<a name="line.328"></a> |
| <FONT color="green">329</FONT> m_exptype.setSize(m_size);<a name="line.329"></a> |
| <FONT color="green">330</FONT> m_firstch.setSize(m_size);<a name="line.330"></a> |
| <FONT color="green">331</FONT> m_nextsib.setSize(m_size);<a name="line.331"></a> |
| <FONT color="green">332</FONT> m_prevsib.setSize(m_size);<a name="line.332"></a> |
| <FONT color="green">333</FONT> m_parent.setSize(m_size);<a name="line.333"></a> |
| <FONT color="green">334</FONT> <a name="line.334"></a> |
| <FONT color="green">335</FONT> m_elemIndexes=null;<a name="line.335"></a> |
| <FONT color="green">336</FONT> <a name="line.336"></a> |
| <FONT color="green">337</FONT> int ds= top ? m_emptyNSDeclSetCount : mark_nsdeclset_size.pop();<a name="line.337"></a> |
| <FONT color="green">338</FONT> if (m_namespaceDeclSets!=null) {<a name="line.338"></a> |
| <FONT color="green">339</FONT> m_namespaceDeclSets.setSize(ds);<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> int ds1= top ? m_emptyNSDeclSetElemsCount : mark_nsdeclelem_size.pop();<a name="line.342"></a> |
| <FONT color="green">343</FONT> if (m_namespaceDeclSetElements!=null) {<a name="line.343"></a> |
| <FONT color="green">344</FONT> m_namespaceDeclSetElements.setSize(ds1);<a name="line.344"></a> |
| <FONT color="green">345</FONT> }<a name="line.345"></a> |
| <FONT color="green">346</FONT> <a name="line.346"></a> |
| <FONT color="green">347</FONT> // Values from SAX2DTM - m_data always has a reserved entry<a name="line.347"></a> |
| <FONT color="green">348</FONT> m_data.setSize(top ? m_emptyDataCount : mark_data_size.pop());<a name="line.348"></a> |
| <FONT color="green">349</FONT> m_chars.setLength(top ? m_emptyCharsCount : mark_char_size.pop());<a name="line.349"></a> |
| <FONT color="green">350</FONT> m_dataOrQName.setSize(top ? m_emptyDataQNCount : mark_doq_size.pop());<a name="line.350"></a> |
| <FONT color="green">351</FONT> <a name="line.351"></a> |
| <FONT color="green">352</FONT> // Return true iff DTM now empty<a name="line.352"></a> |
| <FONT color="green">353</FONT> return m_size==0;<a name="line.353"></a> |
| <FONT color="green">354</FONT> }<a name="line.354"></a> |
| <FONT color="green">355</FONT> <a name="line.355"></a> |
| <FONT color="green">356</FONT> /** @return true if a DTM tree is currently under construction.<a name="line.356"></a> |
| <FONT color="green">357</FONT> * */<a name="line.357"></a> |
| <FONT color="green">358</FONT> public boolean isTreeIncomplete()<a name="line.358"></a> |
| <FONT color="green">359</FONT> {<a name="line.359"></a> |
| <FONT color="green">360</FONT> return !m_endDocumentOccured;<a name="line.360"></a> |
| <FONT color="green">361</FONT> }<a name="line.361"></a> |
| <FONT color="green">362</FONT> }<a name="line.362"></a> |
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| </PRE> |
| </BODY> |
| </HTML> |
