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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: FuncLast.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.functions;<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.DTMIterator;<a name="line.23"></a>
 <FONT color="green">024</FONT>    import org.apache.xpath.XPathContext;<a name="line.24"></a>
 <FONT color="green">025</FONT>    import org.apache.xpath.axes.SubContextList;<a name="line.25"></a>
 <FONT color="green">026</FONT>    import org.apache.xpath.compiler.Compiler;<a name="line.26"></a>
 <FONT color="green">027</FONT>    import org.apache.xpath.objects.XNumber;<a name="line.27"></a>
 <FONT color="green">028</FONT>    import org.apache.xpath.objects.XObject;<a name="line.28"></a>
 <FONT color="green">029</FONT>    <a name="line.29"></a>
 <FONT color="green">030</FONT>    <a name="line.30"></a>
 <FONT color="green">031</FONT>    /**<a name="line.31"></a>
 <FONT color="green">032</FONT>     * Execute the Last() function.<a name="line.32"></a>
 <FONT color="green">033</FONT>     * @xsl.usage advanced<a name="line.33"></a>
 <FONT color="green">034</FONT>     */<a name="line.34"></a>
 <FONT color="green">035</FONT>    public class FuncLast extends Function<a name="line.35"></a>
 <FONT color="green">036</FONT>    {<a name="line.36"></a>
 <FONT color="green">037</FONT>        static final long serialVersionUID = 9205812403085432943L;<a name="line.37"></a>
 <FONT color="green">038</FONT>      <a name="line.38"></a>
 <FONT color="green">039</FONT>      private boolean m_isTopLevel;<a name="line.39"></a>
 <FONT color="green">040</FONT>      <a name="line.40"></a>
 <FONT color="green">041</FONT>      /**<a name="line.41"></a>
 <FONT color="green">042</FONT>       * Figure out if we're executing a toplevel expression.<a name="line.42"></a>
 <FONT color="green">043</FONT>       * If so, we can't be inside of a predicate. <a name="line.43"></a>
 <FONT color="green">044</FONT>       */<a name="line.44"></a>
 <FONT color="green">045</FONT>      public void postCompileStep(Compiler compiler)<a name="line.45"></a>
 <FONT color="green">046</FONT>      {<a name="line.46"></a>
 <FONT color="green">047</FONT>        m_isTopLevel = compiler.getLocationPathDepth() == -1;<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>      /**<a name="line.50"></a>
 <FONT color="green">051</FONT>       * Get the position in the current context node list.<a name="line.51"></a>
 <FONT color="green">052</FONT>       *<a name="line.52"></a>
 <FONT color="green">053</FONT>       * @param xctxt non-null reference to XPath runtime context.<a name="line.53"></a>
 <FONT color="green">054</FONT>       *<a name="line.54"></a>
 <FONT color="green">055</FONT>       * @return The number of nodes in the list.<a name="line.55"></a>
 <FONT color="green">056</FONT>       *<a name="line.56"></a>
 <FONT color="green">057</FONT>       * @throws javax.xml.transform.TransformerException<a name="line.57"></a>
 <FONT color="green">058</FONT>       */<a name="line.58"></a>
 <FONT color="green">059</FONT>      public int getCountOfContextNodeList(XPathContext xctxt)<a name="line.59"></a>
 <FONT color="green">060</FONT>              throws javax.xml.transform.TransformerException<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>        // assert(null != m_contextNodeList, "m_contextNodeList must be non-null");<a name="line.63"></a>
 <FONT color="green">064</FONT>        // If we're in a predicate, then this will return non-null.<a name="line.64"></a>
 <FONT color="green">065</FONT>        SubContextList iter = m_isTopLevel ? null : xctxt.getSubContextList();<a name="line.65"></a>
 <FONT color="green">066</FONT>    <a name="line.66"></a>
 <FONT color="green">067</FONT>        // System.out.println("iter: "+iter);<a name="line.67"></a>
 <FONT color="green">068</FONT>        if (null != iter)<a name="line.68"></a>
 <FONT color="green">069</FONT>          return iter.getLastPos(xctxt);<a name="line.69"></a>
 <FONT color="green">070</FONT>    <a name="line.70"></a>
 <FONT color="green">071</FONT>        DTMIterator cnl = xctxt.getContextNodeList();<a name="line.71"></a>
 <FONT color="green">072</FONT>        int count;<a name="line.72"></a>
 <FONT color="green">073</FONT>        if(null != cnl)<a name="line.73"></a>
 <FONT color="green">074</FONT>        {<a name="line.74"></a>
 <FONT color="green">075</FONT>          count = cnl.getLength();<a name="line.75"></a>
 <FONT color="green">076</FONT>          // System.out.println("count: "+count); <a name="line.76"></a>
 <FONT color="green">077</FONT>        }<a name="line.77"></a>
 <FONT color="green">078</FONT>        else<a name="line.78"></a>
 <FONT color="green">079</FONT>          count = 0;   <a name="line.79"></a>
 <FONT color="green">080</FONT>        return count;<a name="line.80"></a>
 <FONT color="green">081</FONT>      }<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>       * Execute the function.  The function must return<a name="line.84"></a>
 <FONT color="green">085</FONT>       * a valid object.<a name="line.85"></a>
 <FONT color="green">086</FONT>       * @param xctxt The current execution context.<a name="line.86"></a>
 <FONT color="green">087</FONT>       * @return A valid XObject.<a name="line.87"></a>
 <FONT color="green">088</FONT>       *<a name="line.88"></a>
 <FONT color="green">089</FONT>       * @throws javax.xml.transform.TransformerException<a name="line.89"></a>
 <FONT color="green">090</FONT>       */<a name="line.90"></a>
 <FONT color="green">091</FONT>      public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException<a name="line.91"></a>
 <FONT color="green">092</FONT>      {<a name="line.92"></a>
 <FONT color="green">093</FONT>        XNumber xnum = new XNumber((double) getCountOfContextNodeList(xctxt));<a name="line.93"></a>
 <FONT color="green">094</FONT>        // System.out.println("last: "+xnum.num());<a name="line.94"></a>
 <FONT color="green">095</FONT>        return xnum;<a name="line.95"></a>
 <FONT color="green">096</FONT>      }<a name="line.96"></a>
 <FONT color="green">097</FONT>      <a name="line.97"></a>
 <FONT color="green">098</FONT>      /**<a name="line.98"></a>
 <FONT color="green">099</FONT>       * No arguments to process, so this does nothing.<a name="line.99"></a>
 <FONT color="green">100</FONT>       */<a name="line.100"></a>
 <FONT color="green">101</FONT>      public void fixupVariables(java.util.Vector vars, int globalsSize)<a name="line.101"></a>
 <FONT color="green">102</FONT>      {<a name="line.102"></a>
 <FONT color="green">103</FONT>        // no-op<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>    }<a name="line.106"></a>


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	<PRE>
	<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: FuncLast.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.functions;<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.DTMIterator;<a name="line.23"></a>
	<FONT color="green">024</FONT> import org.apache.xpath.XPathContext;<a name="line.24"></a>
	<FONT color="green">025</FONT> import org.apache.xpath.axes.SubContextList;<a name="line.25"></a>
	<FONT color="green">026</FONT> import org.apache.xpath.compiler.Compiler;<a name="line.26"></a>
	<FONT color="green">027</FONT> import org.apache.xpath.objects.XNumber;<a name="line.27"></a>
	<FONT color="green">028</FONT> import org.apache.xpath.objects.XObject;<a name="line.28"></a>
	<FONT color="green">029</FONT> <a name="line.29"></a>
	<FONT color="green">030</FONT> <a name="line.30"></a>
	<FONT color="green">031</FONT> /**<a name="line.31"></a>
	<FONT color="green">032</FONT> * Execute the Last() function.<a name="line.32"></a>
	<FONT color="green">033</FONT> * @xsl.usage advanced<a name="line.33"></a>
	<FONT color="green">034</FONT> */<a name="line.34"></a>
	<FONT color="green">035</FONT> public class FuncLast extends Function<a name="line.35"></a>
	<FONT color="green">036</FONT> {<a name="line.36"></a>
	<FONT color="green">037</FONT> static final long serialVersionUID = 9205812403085432943L;<a name="line.37"></a>
	<FONT color="green">038</FONT> <a name="line.38"></a>
	<FONT color="green">039</FONT> private boolean m_isTopLevel;<a name="line.39"></a>
	<FONT color="green">040</FONT> <a name="line.40"></a>
	<FONT color="green">041</FONT> /**<a name="line.41"></a>
	<FONT color="green">042</FONT> * Figure out if we're executing a toplevel expression.<a name="line.42"></a>
	<FONT color="green">043</FONT> * If so, we can't be inside of a predicate. <a name="line.43"></a>
	<FONT color="green">044</FONT> */<a name="line.44"></a>
	<FONT color="green">045</FONT> public void postCompileStep(Compiler compiler)<a name="line.45"></a>
	<FONT color="green">046</FONT> {<a name="line.46"></a>
	<FONT color="green">047</FONT> m_isTopLevel = compiler.getLocationPathDepth() == -1;<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> /**<a name="line.50"></a>
	<FONT color="green">051</FONT> * Get the position in the current context node list.<a name="line.51"></a>
	<FONT color="green">052</FONT> *<a name="line.52"></a>
	<FONT color="green">053</FONT> * @param xctxt non-null reference to XPath runtime context.<a name="line.53"></a>
	<FONT color="green">054</FONT> *<a name="line.54"></a>
	<FONT color="green">055</FONT> * @return The number of nodes in the list.<a name="line.55"></a>
	<FONT color="green">056</FONT> *<a name="line.56"></a>
	<FONT color="green">057</FONT> * @throws javax.xml.transform.TransformerException<a name="line.57"></a>
	<FONT color="green">058</FONT> */<a name="line.58"></a>
	<FONT color="green">059</FONT> public int getCountOfContextNodeList(XPathContext xctxt)<a name="line.59"></a>
	<FONT color="green">060</FONT> throws javax.xml.transform.TransformerException<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> // assert(null != m_contextNodeList, "m_contextNodeList must be non-null");<a name="line.63"></a>
	<FONT color="green">064</FONT> // If we're in a predicate, then this will return non-null.<a name="line.64"></a>
	<FONT color="green">065</FONT> SubContextList iter = m_isTopLevel ? null : xctxt.getSubContextList();<a name="line.65"></a>
	<FONT color="green">066</FONT> <a name="line.66"></a>
	<FONT color="green">067</FONT> // System.out.println("iter: "+iter);<a name="line.67"></a>
	<FONT color="green">068</FONT> if (null != iter)<a name="line.68"></a>
	<FONT color="green">069</FONT> return iter.getLastPos(xctxt);<a name="line.69"></a>
	<FONT color="green">070</FONT> <a name="line.70"></a>
	<FONT color="green">071</FONT> DTMIterator cnl = xctxt.getContextNodeList();<a name="line.71"></a>
	<FONT color="green">072</FONT> int count;<a name="line.72"></a>
	<FONT color="green">073</FONT> if(null != cnl)<a name="line.73"></a>
	<FONT color="green">074</FONT> {<a name="line.74"></a>
	<FONT color="green">075</FONT> count = cnl.getLength();<a name="line.75"></a>
	<FONT color="green">076</FONT> // System.out.println("count: "+count); <a name="line.76"></a>
	<FONT color="green">077</FONT> }<a name="line.77"></a>
	<FONT color="green">078</FONT> else<a name="line.78"></a>
	<FONT color="green">079</FONT> count = 0; <a name="line.79"></a>
	<FONT color="green">080</FONT> return count;<a name="line.80"></a>
	<FONT color="green">081</FONT> }<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> * Execute the function. The function must return<a name="line.84"></a>
	<FONT color="green">085</FONT> * a valid object.<a name="line.85"></a>
	<FONT color="green">086</FONT> * @param xctxt The current execution context.<a name="line.86"></a>
	<FONT color="green">087</FONT> * @return A valid XObject.<a name="line.87"></a>
	<FONT color="green">088</FONT> *<a name="line.88"></a>
	<FONT color="green">089</FONT> * @throws javax.xml.transform.TransformerException<a name="line.89"></a>
	<FONT color="green">090</FONT> */<a name="line.90"></a>
	<FONT color="green">091</FONT> public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException<a name="line.91"></a>
	<FONT color="green">092</FONT> {<a name="line.92"></a>
	<FONT color="green">093</FONT> XNumber xnum = new XNumber((double) getCountOfContextNodeList(xctxt));<a name="line.93"></a>
	<FONT color="green">094</FONT> // System.out.println("last: "+xnum.num());<a name="line.94"></a>
	<FONT color="green">095</FONT> return xnum;<a name="line.95"></a>
	<FONT color="green">096</FONT> }<a name="line.96"></a>
	<FONT color="green">097</FONT> <a name="line.97"></a>
	<FONT color="green">098</FONT> /**<a name="line.98"></a>
	<FONT color="green">099</FONT> * No arguments to process, so this does nothing.<a name="line.99"></a>
	<FONT color="green">100</FONT> */<a name="line.100"></a>
	<FONT color="green">101</FONT> public void fixupVariables(java.util.Vector vars, int globalsSize)<a name="line.101"></a>
	<FONT color="green">102</FONT> {<a name="line.102"></a>
	<FONT color="green">103</FONT> // no-op<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> }<a name="line.106"></a>




























































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