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Posted to j-users@xalan.apache.org by Sudhir Malhotra <su...@hotmail.com> on 2001/10/26 21:40:58 UTC

Why is int converted to Integer?

It appears that
<xsl:variable name="NumberOfColumns" select="java:size($ColumnList)"/>
makes NumberOfColumns of type Integer instead of int.

It is causing the exception per the following output:
file:///C:/JBuilder4/myprojects/xsltest/testXslTransform.xsl; Line 14; 
Column 17; Got here A

file:///C:/JBuilder4/myprojects/xsltest/testXslTransform.xsl; Line 15; 
Column 17; 3

file:///C:/JBuilder4/myprojects/xsltest/testXslTransform.xsl; Line 25; 
Column 16; Got here B

file:///C:/JBuilder4/myprojects/xsltest/testXslTransform.xsl; Line 26; 
Column 16; 3

file:///C:/JBuilder4/myprojects/xsltest/testXslTransform.xsl; Line 30; 
Column 50; javax.xml.transform.TransformerException: Can not convert 
#UNKNOWN (java.lang.Integer) to a number
-----------------------------------

I am copying the Java code, XSL code and the input file.  If I hardcode
the value of NumberOfColumns, instead of getting it fron 
java.util.ArrayList.size(), the code works fine.

Thanks for your help.

-sm

___________JAVA CODE BEGINS_____________
package xsltest;

import java.io.*;
import javax.xml.transform.*;
import javax.xml.transform.stream.*;
import org.xml.sax.*;
import java.util.*;


public class testXslParams {

    public static
  void main(String[] argv)
	throws Throwable
  {


    TransformerFactory factory = TransformerFactory.newInstance();
    Source xsl = new StreamSource(new File("testXslTransform.xsl"));
    Transformer x = factory.newTransformer(xsl);
    Source source = new StreamSource(new File("testXslResponse.xml"));
    Result target = new javax.xml.transform.stream.StreamResult(new 
FileOutputStream("Results.xml"));

   ArrayList columnList = new java.util.ArrayList();

   columnList.add("2");
   columnList.add("7");
   columnList.add("8");

    Map map = new java.util.HashMap();
    map.put("ColumnList", columnList );
    x.setParameter( "XSL_IO_TABLE",  map );

    x.transform(source, target);

  }
}

___________JAVA CODE ENDS_____________

___________XSL CODE BEGINS_____________
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
version="1.0" xmlns:lxslt="http://xml.apache.org/xslt" 
xmlns:java="http://xml.apache.org/xslt/java" extension-element-prefixes=" 
java" exclude-result-prefixes="java">
	<xsl:param name="XSL_IO_TABLE"/>
	<xsl:variable name="ColumnList" 
select="java:get($XSL_IO_TABLE,'ColumnList')"/>
	<xsl:variable name="NumberOfColumns" select="java:size($ColumnList)"/>
	<xsl:output method="xml" indent="yes"/>
	<xsl:template match="/">
		<xsl:apply-templates select="//table/tr"/>
	</xsl:template>
	<xsl:template match="//table/tr[1]">
		<xsl:apply-templates select="th"/>
		<Point>
			<PointLabel/>
			<XData>0</XData>
			<xsl:message>Got here A </xsl:message>
			<xsl:message>
				<xsl:value-of select="$NumberOfColumns"/>
			</xsl:message>
			<xsl:call-template name="InitYData">
				<xsl:with-param name="NumberOfColumns" select="$NumberOfColumns"/>
			</xsl:call-template>
		</Point>
	</xsl:template>
	<xsl:template name="InitYData">
		<xsl:param name="NumberOfColumns" select="$NumberOfColumns"/>
		<xsl:message>Got here B </xsl:message>
		<xsl:message>
			<xsl:value-of select="$NumberOfColumns"/>
		</xsl:message>
		<YData>-9999</YData>
		<xsl:if test="number($NumberOfColumns) &gt; 1">
			<xsl:message>Got here C </xsl:message>
			<xsl:message>
				<xsl:value-of select="$NumberOfColumns"/>
			</xsl:message>
			<xsl:call-template name="InitYData">
				<xsl:with-param name="NumberOfColumns" select="number($NumberOfColumns) 
- 1"/>
			</xsl:call-template>
		</xsl:if>
	</xsl:template>
	<xsl:template match="//table/tr[1]/th">
		<xsl:variable name="isValidColumn" select="java:contains($ColumnList, 
string(position()))"/>
		<xsl:if test="$isValidColumn = 'true' ">
			<SeriesLabel>
				<xsl:value-of select="."/>
			</SeriesLabel>
		</xsl:if>
	</xsl:template>
	<xsl:template match="//table/tr[position() >1 ]">
		<Point>
			<XData>
				<xsl:value-of select="td[1]"/>
			</XData>
			<xsl:apply-templates select="td"/>
		</Point>
	</xsl:template>
	<xsl:template match="td">
		<xsl:variable name="isValidColumn" select="java:contains($ColumnList, 
string(position()))"/>
		<xsl:if test="$isValidColumn = 'true' ">
			<YData>
				<xsl:choose>
					<xsl:when test=". = 'NA'">-9999</xsl:when>
					<xsl:otherwise>
						<xsl:value-of select="."/>
					</xsl:otherwise>
				</xsl:choose>
			</YData>
		</xsl:if>
	</xsl:template>
	<xsl:template match="*"/>
</xsl:stylesheet>
___________XSL CODE ENDS_____________

___________XML INPUT FILE BEGINS_____________
<?xml version="1.0" encoding="UTF-8"?>
<reply>
	<reply>
		<data>
			<spec/>
			<table>
				<columns>
					<column id="dateof" type="numeric"/>
					<column id="a" type="numeric"/>
					<column id="b" type="numeric"/>
					<column id="column4" type="numeric"/>
					<column id="column5" type="numeric"/>
					<column id="buy" type="numeric"/>
					<column id="sell" type="numeric"/>
					<column id="column8" type="numeric"/>
				</columns>
				<tr>
					<th>dateof</th>
					<th>a</th>
					<th>b</th>
					<th>column4</th>
					<th>column5</th>
					<th>buy</th>
					<th>sell</th>
					<th>column8</th>
				</tr>
				<tr>
					<td>20000918-00:00:00.000 CDT</td>
					<td>123.250000</td>
					<td>57.500000</td>
					<td>2.143478</td>
					<td>NA</td>
					<td>NA</td>
					<td>NA</td>
					<td>NA</td>
				</tr>
				<tr>
					<td>20000919-00:00:00.000 CDT</td>
					<td>124.937500</td>
					<td>57.000000</td>
					<td>2.191886</td>
					<td>NA</td>
					<td>NA</td>
					<td>NA</td>
					<td>NA</td>
				</tr>
				<tr>
					<td>20010910-00:00:00.000 CDT</td>
					<td>96.470000</td>
					<td>39.350000</td>
					<td>2.451588</td>
					<td>2.503074</td>
					<td>2.482923</td>
					<td>2.523225</td>
					<td>0.020151</td>
				</tr>
				<tr>
					<td>20010911-00:00:00.000 CDT</td>
					<td>NA</td>
					<td>39.350000</td>
					<td>NA</td>
					<td>2.500147</td>
					<td>2.480830</td>
					<td>2.519463</td>
					<td>0.019317</td>
				</tr>
				<tr>
					<td>20010917-00:00:00.000 CDT</td>
					<td>93.340000</td>
					<td>35.150000</td>
					<td>2.655477</td>
					<td>2.507283</td>
					<td>2.480676</td>
					<td>2.533889</td>
					<td>0.026606</td>
				</tr>
			</table>
		</data>
	</reply>
</reply>

___________XML INPUT FILE ENDS_____________



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