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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: ContextMatchStepPattern.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.patterns;<a name="line.21"></a> |
| <FONT color="green">022</FONT> <a name="line.22"></a> |
| <FONT color="green">023</FONT> import org.apache.xml.dtm.Axis;<a name="line.23"></a> |
| <FONT color="green">024</FONT> import org.apache.xml.dtm.DTM;<a name="line.24"></a> |
| <FONT color="green">025</FONT> import org.apache.xml.dtm.DTMAxisTraverser;<a name="line.25"></a> |
| <FONT color="green">026</FONT> import org.apache.xml.dtm.DTMFilter;<a name="line.26"></a> |
| <FONT color="green">027</FONT> import org.apache.xpath.XPathContext;<a name="line.27"></a> |
| <FONT color="green">028</FONT> import org.apache.xpath.axes.WalkerFactory;<a name="line.28"></a> |
| <FONT color="green">029</FONT> import org.apache.xpath.objects.XObject;<a name="line.29"></a> |
| <FONT color="green">030</FONT> /**<a name="line.30"></a> |
| <FONT color="green">031</FONT> * Special context node pattern matcher.<a name="line.31"></a> |
| <FONT color="green">032</FONT> */<a name="line.32"></a> |
| <FONT color="green">033</FONT> public class ContextMatchStepPattern extends StepPattern<a name="line.33"></a> |
| <FONT color="green">034</FONT> {<a name="line.34"></a> |
| <FONT color="green">035</FONT> static final long serialVersionUID = -1888092779313211942L;<a name="line.35"></a> |
| <FONT color="green">036</FONT> <a name="line.36"></a> |
| <FONT color="green">037</FONT> /**<a name="line.37"></a> |
| <FONT color="green">038</FONT> * Construct a ContextMatchStepPattern.<a name="line.38"></a> |
| <FONT color="green">039</FONT> *<a name="line.39"></a> |
| <FONT color="green">040</FONT> */<a name="line.40"></a> |
| <FONT color="green">041</FONT> public ContextMatchStepPattern(int axis, int paxis)<a name="line.41"></a> |
| <FONT color="green">042</FONT> {<a name="line.42"></a> |
| <FONT color="green">043</FONT> super(DTMFilter.SHOW_ALL, axis, paxis);<a name="line.43"></a> |
| <FONT color="green">044</FONT> }<a name="line.44"></a> |
| <FONT color="green">045</FONT> <a name="line.45"></a> |
| <FONT color="green">046</FONT> /**<a name="line.46"></a> |
| <FONT color="green">047</FONT> * Execute this pattern step, including predicates.<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> * @param xctxt XPath runtime context.<a name="line.50"></a> |
| <FONT color="green">051</FONT> *<a name="line.51"></a> |
| <FONT color="green">052</FONT> * @return {@link org.apache.xpath.patterns.NodeTest#SCORE_NODETEST},<a name="line.52"></a> |
| <FONT color="green">053</FONT> * {@link org.apache.xpath.patterns.NodeTest#SCORE_NONE},<a name="line.53"></a> |
| <FONT color="green">054</FONT> * {@link org.apache.xpath.patterns.NodeTest#SCORE_NSWILD},<a name="line.54"></a> |
| <FONT color="green">055</FONT> * {@link org.apache.xpath.patterns.NodeTest#SCORE_QNAME}, or<a name="line.55"></a> |
| <FONT color="green">056</FONT> * {@link org.apache.xpath.patterns.NodeTest#SCORE_OTHER}.<a name="line.56"></a> |
| <FONT color="green">057</FONT> *<a name="line.57"></a> |
| <FONT color="green">058</FONT> * @throws javax.xml.transform.TransformerException<a name="line.58"></a> |
| <FONT color="green">059</FONT> */<a name="line.59"></a> |
| <FONT color="green">060</FONT> public XObject execute(XPathContext xctxt)<a name="line.60"></a> |
| <FONT color="green">061</FONT> throws javax.xml.transform.TransformerException<a name="line.61"></a> |
| <FONT color="green">062</FONT> {<a name="line.62"></a> |
| <FONT color="green">063</FONT> <a name="line.63"></a> |
| <FONT color="green">064</FONT> if (xctxt.getIteratorRoot() == xctxt.getCurrentNode())<a name="line.64"></a> |
| <FONT color="green">065</FONT> return getStaticScore();<a name="line.65"></a> |
| <FONT color="green">066</FONT> else<a name="line.66"></a> |
| <FONT color="green">067</FONT> return this.SCORE_NONE;<a name="line.67"></a> |
| <FONT color="green">068</FONT> }<a name="line.68"></a> |
| <FONT color="green">069</FONT> <a name="line.69"></a> |
| <FONT color="green">070</FONT> /**<a name="line.70"></a> |
| <FONT color="green">071</FONT> * Execute the match pattern step relative to another step.<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> * @param xctxt The XPath runtime context.<a name="line.74"></a> |
| <FONT color="green">075</FONT> * NEEDSDOC @param prevStep<a name="line.75"></a> |
| <FONT color="green">076</FONT> *<a name="line.76"></a> |
| <FONT color="green">077</FONT> * @return {@link org.apache.xpath.patterns.NodeTest#SCORE_NODETEST},<a name="line.77"></a> |
| <FONT color="green">078</FONT> * {@link org.apache.xpath.patterns.NodeTest#SCORE_NONE},<a name="line.78"></a> |
| <FONT color="green">079</FONT> * {@link org.apache.xpath.patterns.NodeTest#SCORE_NSWILD},<a name="line.79"></a> |
| <FONT color="green">080</FONT> * {@link org.apache.xpath.patterns.NodeTest#SCORE_QNAME}, or<a name="line.80"></a> |
| <FONT color="green">081</FONT> * {@link org.apache.xpath.patterns.NodeTest#SCORE_OTHER}.<a name="line.81"></a> |
| <FONT color="green">082</FONT> *<a name="line.82"></a> |
| <FONT color="green">083</FONT> * @throws javax.xml.transform.TransformerException<a name="line.83"></a> |
| <FONT color="green">084</FONT> */<a name="line.84"></a> |
| <FONT color="green">085</FONT> public XObject executeRelativePathPattern(<a name="line.85"></a> |
| <FONT color="green">086</FONT> XPathContext xctxt, StepPattern prevStep)<a name="line.86"></a> |
| <FONT color="green">087</FONT> throws javax.xml.transform.TransformerException<a name="line.87"></a> |
| <FONT color="green">088</FONT> {<a name="line.88"></a> |
| <FONT color="green">089</FONT> <a name="line.89"></a> |
| <FONT color="green">090</FONT> XObject score = NodeTest.SCORE_NONE;<a name="line.90"></a> |
| <FONT color="green">091</FONT> int context = xctxt.getCurrentNode();<a name="line.91"></a> |
| <FONT color="green">092</FONT> DTM dtm = xctxt.getDTM(context);<a name="line.92"></a> |
| <FONT color="green">093</FONT> <a name="line.93"></a> |
| <FONT color="green">094</FONT> if (null != dtm)<a name="line.94"></a> |
| <FONT color="green">095</FONT> {<a name="line.95"></a> |
| <FONT color="green">096</FONT> int predContext = xctxt.getCurrentNode();<a name="line.96"></a> |
| <FONT color="green">097</FONT> DTMAxisTraverser traverser;<a name="line.97"></a> |
| <FONT color="green">098</FONT> <a name="line.98"></a> |
| <FONT color="green">099</FONT> int axis = m_axis;<a name="line.99"></a> |
| <FONT color="green">100</FONT> <a name="line.100"></a> |
| <FONT color="green">101</FONT> boolean needToTraverseAttrs = WalkerFactory.isDownwardAxisOfMany(axis);<a name="line.101"></a> |
| <FONT color="green">102</FONT> boolean iterRootIsAttr = (dtm.getNodeType(xctxt.getIteratorRoot()) <a name="line.102"></a> |
| <FONT color="green">103</FONT> == DTM.ATTRIBUTE_NODE);<a name="line.103"></a> |
| <FONT color="green">104</FONT> <a name="line.104"></a> |
| <FONT color="green">105</FONT> if((Axis.PRECEDING == axis) && iterRootIsAttr)<a name="line.105"></a> |
| <FONT color="green">106</FONT> {<a name="line.106"></a> |
| <FONT color="green">107</FONT> axis = Axis.PRECEDINGANDANCESTOR;<a name="line.107"></a> |
| <FONT color="green">108</FONT> }<a name="line.108"></a> |
| <FONT color="green">109</FONT> <a name="line.109"></a> |
| <FONT color="green">110</FONT> traverser = dtm.getAxisTraverser(axis);<a name="line.110"></a> |
| <FONT color="green">111</FONT> <a name="line.111"></a> |
| <FONT color="green">112</FONT> for (int relative = traverser.first(context); DTM.NULL != relative;<a name="line.112"></a> |
| <FONT color="green">113</FONT> relative = traverser.next(context, relative))<a name="line.113"></a> |
| <FONT color="green">114</FONT> {<a name="line.114"></a> |
| <FONT color="green">115</FONT> try<a name="line.115"></a> |
| <FONT color="green">116</FONT> {<a name="line.116"></a> |
| <FONT color="green">117</FONT> xctxt.pushCurrentNode(relative);<a name="line.117"></a> |
| <FONT color="green">118</FONT> <a name="line.118"></a> |
| <FONT color="green">119</FONT> score = execute(xctxt);<a name="line.119"></a> |
| <FONT color="green">120</FONT> <a name="line.120"></a> |
| <FONT color="green">121</FONT> if (score != NodeTest.SCORE_NONE)<a name="line.121"></a> |
| <FONT color="green">122</FONT> {<a name="line.122"></a> |
| <FONT color="green">123</FONT> //score = executePredicates( xctxt, prevStep, SCORE_OTHER, <a name="line.123"></a> |
| <FONT color="green">124</FONT> // predContext, relative);<a name="line.124"></a> |
| <FONT color="green">125</FONT> if (executePredicates(xctxt, dtm, context))<a name="line.125"></a> |
| <FONT color="green">126</FONT> return score;<a name="line.126"></a> |
| <FONT color="green">127</FONT> <a name="line.127"></a> |
| <FONT color="green">128</FONT> score = NodeTest.SCORE_NONE;<a name="line.128"></a> |
| <FONT color="green">129</FONT> }<a name="line.129"></a> |
| <FONT color="green">130</FONT> <a name="line.130"></a> |
| <FONT color="green">131</FONT> if(needToTraverseAttrs && iterRootIsAttr<a name="line.131"></a> |
| <FONT color="green">132</FONT> && (DTM.ELEMENT_NODE == dtm.getNodeType(relative)))<a name="line.132"></a> |
| <FONT color="green">133</FONT> {<a name="line.133"></a> |
| <FONT color="green">134</FONT> int xaxis = Axis.ATTRIBUTE;<a name="line.134"></a> |
| <FONT color="green">135</FONT> for (int i = 0; i < 2; i++) <a name="line.135"></a> |
| <FONT color="green">136</FONT> { <a name="line.136"></a> |
| <FONT color="green">137</FONT> DTMAxisTraverser atraverser = dtm.getAxisTraverser(xaxis);<a name="line.137"></a> |
| <FONT color="green">138</FONT> <a name="line.138"></a> |
| <FONT color="green">139</FONT> for (int arelative = atraverser.first(relative); <a name="line.139"></a> |
| <FONT color="green">140</FONT> DTM.NULL != arelative;<a name="line.140"></a> |
| <FONT color="green">141</FONT> arelative = atraverser.next(relative, arelative))<a name="line.141"></a> |
| <FONT color="green">142</FONT> {<a name="line.142"></a> |
| <FONT color="green">143</FONT> try<a name="line.143"></a> |
| <FONT color="green">144</FONT> {<a name="line.144"></a> |
| <FONT color="green">145</FONT> xctxt.pushCurrentNode(arelative);<a name="line.145"></a> |
| <FONT color="green">146</FONT> <a name="line.146"></a> |
| <FONT color="green">147</FONT> score = execute(xctxt);<a name="line.147"></a> |
| <FONT color="green">148</FONT> <a name="line.148"></a> |
| <FONT color="green">149</FONT> if (score != NodeTest.SCORE_NONE)<a name="line.149"></a> |
| <FONT color="green">150</FONT> {<a name="line.150"></a> |
| <FONT color="green">151</FONT> //score = executePredicates( xctxt, prevStep, SCORE_OTHER, <a name="line.151"></a> |
| <FONT color="green">152</FONT> // predContext, arelative);<a name="line.152"></a> |
| <FONT color="green">153</FONT> <a name="line.153"></a> |
| <FONT color="green">154</FONT> if (score != NodeTest.SCORE_NONE)<a name="line.154"></a> |
| <FONT color="green">155</FONT> return score;<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> finally<a name="line.158"></a> |
| <FONT color="green">159</FONT> {<a name="line.159"></a> |
| <FONT color="green">160</FONT> xctxt.popCurrentNode();<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> xaxis = Axis.NAMESPACE;<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> }<a name="line.167"></a> |
| <FONT color="green">168</FONT> finally<a name="line.168"></a> |
| <FONT color="green">169</FONT> {<a name="line.169"></a> |
| <FONT color="green">170</FONT> xctxt.popCurrentNode();<a name="line.170"></a> |
| <FONT color="green">171</FONT> }<a name="line.171"></a> |
| <FONT color="green">172</FONT> }<a name="line.172"></a> |
| <FONT color="green">173</FONT> <a name="line.173"></a> |
| <FONT color="green">174</FONT> }<a name="line.174"></a> |
| <FONT color="green">175</FONT> <a name="line.175"></a> |
| <FONT color="green">176</FONT> return score;<a name="line.176"></a> |
| <FONT color="green">177</FONT> }<a name="line.177"></a> |
| <FONT color="green">178</FONT> <a name="line.178"></a> |
| <FONT color="green">179</FONT> }<a name="line.179"></a> |
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| </PRE> |
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