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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: CountersTable.java 468645 2006-10-28 06:57:24Z 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.transformer;<a name="line.21"></a> |
| <FONT color="green">022</FONT> <a name="line.22"></a> |
| <FONT color="green">023</FONT> import java.util.Hashtable;<a name="line.23"></a> |
| <FONT color="green">024</FONT> import java.util.Vector;<a name="line.24"></a> |
| <FONT color="green">025</FONT> <a name="line.25"></a> |
| <FONT color="green">026</FONT> import javax.xml.transform.TransformerException;<a name="line.26"></a> |
| <FONT color="green">027</FONT> <a name="line.27"></a> |
| <FONT color="green">028</FONT> import org.apache.xalan.templates.ElemNumber;<a name="line.28"></a> |
| <FONT color="green">029</FONT> import org.apache.xml.dtm.DTM;<a name="line.29"></a> |
| <FONT color="green">030</FONT> import org.apache.xpath.NodeSetDTM;<a name="line.30"></a> |
| <FONT color="green">031</FONT> import org.apache.xpath.XPathContext;<a name="line.31"></a> |
| <FONT color="green">032</FONT> <a name="line.32"></a> |
| <FONT color="green">033</FONT> /**<a name="line.33"></a> |
| <FONT color="green">034</FONT> * This is a table of counters, keyed by ElemNumber objects, each<a name="line.34"></a> |
| <FONT color="green">035</FONT> * of which has a list of Counter objects. This really isn't a true<a name="line.35"></a> |
| <FONT color="green">036</FONT> * table, it is more like a list of lists (there must be a technical<a name="line.36"></a> |
| <FONT color="green">037</FONT> * term for that...).<a name="line.37"></a> |
| <FONT color="green">038</FONT> * @xsl.usage internal<a name="line.38"></a> |
| <FONT color="green">039</FONT> */<a name="line.39"></a> |
| <FONT color="green">040</FONT> public class CountersTable extends Hashtable<a name="line.40"></a> |
| <FONT color="green">041</FONT> {<a name="line.41"></a> |
| <FONT color="green">042</FONT> static final long serialVersionUID = 2159100770924179875L;<a name="line.42"></a> |
| <FONT color="green">043</FONT> <a name="line.43"></a> |
| <FONT color="green">044</FONT> /**<a name="line.44"></a> |
| <FONT color="green">045</FONT> * Construct a CountersTable.<a name="line.45"></a> |
| <FONT color="green">046</FONT> */<a name="line.46"></a> |
| <FONT color="green">047</FONT> public CountersTable(){}<a name="line.47"></a> |
| <FONT color="green">048</FONT> <a name="line.48"></a> |
| <FONT color="green">049</FONT> /**<a name="line.49"></a> |
| <FONT color="green">050</FONT> * Get the list of counters that corresponds to<a name="line.50"></a> |
| <FONT color="green">051</FONT> * the given ElemNumber object.<a name="line.51"></a> |
| <FONT color="green">052</FONT> *<a name="line.52"></a> |
| <FONT color="green">053</FONT> * @param numberElem the given xsl:number element.<a name="line.53"></a> |
| <FONT color="green">054</FONT> *<a name="line.54"></a> |
| <FONT color="green">055</FONT> * @return the list of counters that corresponds to<a name="line.55"></a> |
| <FONT color="green">056</FONT> * the given ElemNumber object.<a name="line.56"></a> |
| <FONT color="green">057</FONT> */<a name="line.57"></a> |
| <FONT color="green">058</FONT> Vector getCounters(ElemNumber numberElem)<a name="line.58"></a> |
| <FONT color="green">059</FONT> {<a name="line.59"></a> |
| <FONT color="green">060</FONT> <a name="line.60"></a> |
| <FONT color="green">061</FONT> Vector counters = (Vector) this.get(numberElem);<a name="line.61"></a> |
| <FONT color="green">062</FONT> <a name="line.62"></a> |
| <FONT color="green">063</FONT> return (null == counters) ? putElemNumber(numberElem) : counters;<a name="line.63"></a> |
| <FONT color="green">064</FONT> }<a name="line.64"></a> |
| <FONT color="green">065</FONT> <a name="line.65"></a> |
| <FONT color="green">066</FONT> /**<a name="line.66"></a> |
| <FONT color="green">067</FONT> * Put a counter into the table and create an empty<a name="line.67"></a> |
| <FONT color="green">068</FONT> * vector as it's value.<a name="line.68"></a> |
| <FONT color="green">069</FONT> *<a name="line.69"></a> |
| <FONT color="green">070</FONT> * @param numberElem the given xsl:number element.<a name="line.70"></a> |
| <FONT color="green">071</FONT> *<a name="line.71"></a> |
| <FONT color="green">072</FONT> * @return an empty vector to be used to store counts<a name="line.72"></a> |
| <FONT color="green">073</FONT> * for this number element.<a name="line.73"></a> |
| <FONT color="green">074</FONT> */<a name="line.74"></a> |
| <FONT color="green">075</FONT> Vector putElemNumber(ElemNumber numberElem)<a name="line.75"></a> |
| <FONT color="green">076</FONT> {<a name="line.76"></a> |
| <FONT color="green">077</FONT> <a name="line.77"></a> |
| <FONT color="green">078</FONT> Vector counters = new Vector();<a name="line.78"></a> |
| <FONT color="green">079</FONT> <a name="line.79"></a> |
| <FONT color="green">080</FONT> this.put(numberElem, counters);<a name="line.80"></a> |
| <FONT color="green">081</FONT> <a name="line.81"></a> |
| <FONT color="green">082</FONT> return counters;<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> /**<a name="line.85"></a> |
| <FONT color="green">086</FONT> * Place to collect new counters.<a name="line.86"></a> |
| <FONT color="green">087</FONT> */<a name="line.87"></a> |
| <FONT color="green">088</FONT> transient private NodeSetDTM m_newFound;<a name="line.88"></a> |
| <FONT color="green">089</FONT> <a name="line.89"></a> |
| <FONT color="green">090</FONT> /**<a name="line.90"></a> |
| <FONT color="green">091</FONT> * Add a list of counted nodes that were built in backwards document<a name="line.91"></a> |
| <FONT color="green">092</FONT> * order, or a list of counted nodes that are in forwards document<a name="line.92"></a> |
| <FONT color="green">093</FONT> * order.<a name="line.93"></a> |
| <FONT color="green">094</FONT> *<a name="line.94"></a> |
| <FONT color="green">095</FONT> * @param flist Vector of nodes built in forwards document order<a name="line.95"></a> |
| <FONT color="green">096</FONT> * @param blist Vector of nodes built in backwards document order<a name="line.96"></a> |
| <FONT color="green">097</FONT> */<a name="line.97"></a> |
| <FONT color="green">098</FONT> void appendBtoFList(NodeSetDTM flist, NodeSetDTM blist)<a name="line.98"></a> |
| <FONT color="green">099</FONT> {<a name="line.99"></a> |
| <FONT color="green">100</FONT> <a name="line.100"></a> |
| <FONT color="green">101</FONT> int n = blist.size();<a name="line.101"></a> |
| <FONT color="green">102</FONT> <a name="line.102"></a> |
| <FONT color="green">103</FONT> for (int i = (n - 1); i >= 0; i--)<a name="line.103"></a> |
| <FONT color="green">104</FONT> {<a name="line.104"></a> |
| <FONT color="green">105</FONT> flist.addElement(blist.item(i));<a name="line.105"></a> |
| <FONT color="green">106</FONT> }<a name="line.106"></a> |
| <FONT color="green">107</FONT> }<a name="line.107"></a> |
| <FONT color="green">108</FONT> <a name="line.108"></a> |
| <FONT color="green">109</FONT> // For diagnostics<a name="line.109"></a> |
| <FONT color="green">110</FONT> <a name="line.110"></a> |
| <FONT color="green">111</FONT> /** Number of counters created so far */<a name="line.111"></a> |
| <FONT color="green">112</FONT> transient int m_countersMade = 0;<a name="line.112"></a> |
| <FONT color="green">113</FONT> <a name="line.113"></a> |
| <FONT color="green">114</FONT> /**<a name="line.114"></a> |
| <FONT color="green">115</FONT> * Count forward until the given node is found, or until<a name="line.115"></a> |
| <FONT color="green">116</FONT> * we have looked to the given amount.<a name="line.116"></a> |
| <FONT color="green">117</FONT> *<a name="line.117"></a> |
| <FONT color="green">118</FONT> * @param support The XPath context to use <a name="line.118"></a> |
| <FONT color="green">119</FONT> * @param numberElem The given xsl:number element.<a name="line.119"></a> |
| <FONT color="green">120</FONT> * @param node The node to count.<a name="line.120"></a> |
| <FONT color="green">121</FONT> * <a name="line.121"></a> |
| <FONT color="green">122</FONT> * @return The node count, or 0 if not found.<a name="line.122"></a> |
| <FONT color="green">123</FONT> *<a name="line.123"></a> |
| <FONT color="green">124</FONT> * @throws TransformerException<a name="line.124"></a> |
| <FONT color="green">125</FONT> */<a name="line.125"></a> |
| <FONT color="green">126</FONT> public int countNode(XPathContext support, ElemNumber numberElem, int node)<a name="line.126"></a> |
| <FONT color="green">127</FONT> throws TransformerException<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> int count = 0;<a name="line.130"></a> |
| <FONT color="green">131</FONT> Vector counters = getCounters(numberElem);<a name="line.131"></a> |
| <FONT color="green">132</FONT> int nCounters = counters.size();<a name="line.132"></a> |
| <FONT color="green">133</FONT> <a name="line.133"></a> |
| <FONT color="green">134</FONT> // XPath countMatchPattern = numberElem.getCountMatchPattern(support, node);<a name="line.134"></a> |
| <FONT color="green">135</FONT> // XPath fromMatchPattern = numberElem.m_fromMatchPattern;<a name="line.135"></a> |
| <FONT color="green">136</FONT> int target = numberElem.getTargetNode(support, node);<a name="line.136"></a> |
| <FONT color="green">137</FONT> <a name="line.137"></a> |
| <FONT color="green">138</FONT> if (DTM.NULL != target)<a name="line.138"></a> |
| <FONT color="green">139</FONT> {<a name="line.139"></a> |
| <FONT color="green">140</FONT> for (int i = 0; i < nCounters; i++)<a name="line.140"></a> |
| <FONT color="green">141</FONT> {<a name="line.141"></a> |
| <FONT color="green">142</FONT> Counter counter = (Counter) counters.elementAt(i);<a name="line.142"></a> |
| <FONT color="green">143</FONT> <a name="line.143"></a> |
| <FONT color="green">144</FONT> count = counter.getPreviouslyCounted(support, target);<a name="line.144"></a> |
| <FONT color="green">145</FONT> <a name="line.145"></a> |
| <FONT color="green">146</FONT> if (count > 0)<a name="line.146"></a> |
| <FONT color="green">147</FONT> return count;<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> // In the loop below, we collect the nodes in backwards doc order, so <a name="line.150"></a> |
| <FONT color="green">151</FONT> // we don't have to do inserts, but then we store the nodes in forwards <a name="line.151"></a> |
| <FONT color="green">152</FONT> // document order, so we don't have to insert nodes into that list, <a name="line.152"></a> |
| <FONT color="green">153</FONT> // so that's what the appendBtoFList stuff is all about. In cases <a name="line.153"></a> |
| <FONT color="green">154</FONT> // of forward counting by one, this will mean a single node copy from <a name="line.154"></a> |
| <FONT color="green">155</FONT> // the backwards list (m_newFound) to the forwards list (counter.m_countNodes).<a name="line.155"></a> |
| <FONT color="green">156</FONT> count = 0;<a name="line.156"></a> |
| <FONT color="green">157</FONT> if (m_newFound == null)<a name="line.157"></a> |
| <FONT color="green">158</FONT> m_newFound = new NodeSetDTM(support.getDTMManager());<a name="line.158"></a> |
| <FONT color="green">159</FONT> <a name="line.159"></a> |
| <FONT color="green">160</FONT> for (; DTM.NULL != target;<a name="line.160"></a> |
| <FONT color="green">161</FONT> target = numberElem.getPreviousNode(support, target))<a name="line.161"></a> |
| <FONT color="green">162</FONT> {<a name="line.162"></a> |
| <FONT color="green">163</FONT> <a name="line.163"></a> |
| <FONT color="green">164</FONT> // First time in, we should not have to check for previous counts, <a name="line.164"></a> |
| <FONT color="green">165</FONT> // since the original target node was already checked in the <a name="line.165"></a> |
| <FONT color="green">166</FONT> // block above.<a name="line.166"></a> |
| <FONT color="green">167</FONT> if (0 != count)<a name="line.167"></a> |
| <FONT color="green">168</FONT> {<a name="line.168"></a> |
| <FONT color="green">169</FONT> for (int i = 0; i < nCounters; i++)<a name="line.169"></a> |
| <FONT color="green">170</FONT> {<a name="line.170"></a> |
| <FONT color="green">171</FONT> Counter counter = (Counter) counters.elementAt(i);<a name="line.171"></a> |
| <FONT color="green">172</FONT> int cacheLen = counter.m_countNodes.size();<a name="line.172"></a> |
| <FONT color="green">173</FONT> <a name="line.173"></a> |
| <FONT color="green">174</FONT> if ((cacheLen > 0)<a name="line.174"></a> |
| <FONT color="green">175</FONT> && (counter.m_countNodes.elementAt(cacheLen<a name="line.175"></a> |
| <FONT color="green">176</FONT> - 1) == target))<a name="line.176"></a> |
| <FONT color="green">177</FONT> {<a name="line.177"></a> |
| <FONT color="green">178</FONT> count += (cacheLen + counter.m_countNodesStartCount);<a name="line.178"></a> |
| <FONT color="green">179</FONT> <a name="line.179"></a> |
| <FONT color="green">180</FONT> if (cacheLen > 0)<a name="line.180"></a> |
| <FONT color="green">181</FONT> appendBtoFList(counter.m_countNodes, m_newFound);<a name="line.181"></a> |
| <FONT color="green">182</FONT> <a name="line.182"></a> |
| <FONT color="green">183</FONT> m_newFound.removeAllElements();<a name="line.183"></a> |
| <FONT color="green">184</FONT> <a name="line.184"></a> |
| <FONT color="green">185</FONT> return count;<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> m_newFound.addElement(target);<a name="line.190"></a> |
| <FONT color="green">191</FONT> <a name="line.191"></a> |
| <FONT color="green">192</FONT> count++;<a name="line.192"></a> |
| <FONT color="green">193</FONT> }<a name="line.193"></a> |
| <FONT color="green">194</FONT> <a name="line.194"></a> |
| <FONT color="green">195</FONT> // If we got to this point, then we didn't find a counter, so make <a name="line.195"></a> |
| <FONT color="green">196</FONT> // one and add it to the list.<a name="line.196"></a> |
| <FONT color="green">197</FONT> Counter counter = new Counter(numberElem, new NodeSetDTM(support.getDTMManager()));<a name="line.197"></a> |
| <FONT color="green">198</FONT> <a name="line.198"></a> |
| <FONT color="green">199</FONT> m_countersMade++; // for diagnostics<a name="line.199"></a> |
| <FONT color="green">200</FONT> <a name="line.200"></a> |
| <FONT color="green">201</FONT> appendBtoFList(counter.m_countNodes, m_newFound);<a name="line.201"></a> |
| <FONT color="green">202</FONT> m_newFound.removeAllElements();<a name="line.202"></a> |
| <FONT color="green">203</FONT> counters.addElement(counter);<a name="line.203"></a> |
| <FONT color="green">204</FONT> }<a name="line.204"></a> |
| <FONT color="green">205</FONT> <a name="line.205"></a> |
| <FONT color="green">206</FONT> return count;<a name="line.206"></a> |
| <FONT color="green">207</FONT> }<a name="line.207"></a> |
| <FONT color="green">208</FONT> }<a name="line.208"></a> |
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| </PRE> |
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