XSLT Transformation using Xalan-Java Extensions -
i trying convert xml csv using "xalan-java extensions" [xslt template include java coding] , unfortunately no positive results.
i added external libs (bsf.jar;js.jar;xalan.jar;xercesimpl.jar;xml-apis.jar) java projects before, seems 1 not working, i'm getting error:
error during transformation - java.lang.nullpointerexception; line#: 55; column#: 45
my java code:
public class transformcsv { /** * @param args */ public static void main(string[] args) { // todo auto-generated method stub try { file stylesheet = new file("style.xsl"); file xmlsource = new file("data.xml"); documentbuilderfactory factory = documentbuilderfactory.newinstance(); documentbuilder builder = factory.newdocumentbuilder(); document document = builder.parse(xmlsource); streamsource stylesource = new streamsource(stylesheet); transformer transformer = transformerfactory.newinstance().newtransformer(stylesource); source source = new domsource(document); result outputtarget = new streamresult(new file("result.csv")); transformer.transform(source, outputtarget); system.out.println(outputtarget); system.out.println("test"); } catch (transformerconfigurationexception e) { // todo auto-generated catch block e.printstacktrace(); } catch (parserconfigurationexception e) { // todo auto-generated catch block e.printstacktrace(); } catch (saxexception e) { // todo auto-generated catch block e.printstacktrace(); } catch (ioexception e) { // todo auto-generated catch block e.printstacktrace(); } catch (transformerfactoryconfigurationerror e) { // todo auto-generated catch block e.printstacktrace(); } catch (transformerexception e) { // todo auto-generated catch block e.printstacktrace(); } } } how can call org.apache.xalan.xslt.process within in java code? without using commandline , classpath settings.
here xsl-template (taken apache example) , data.xml:
<?xml version="1.0"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/xsl/transform" xmlns:xalan="http://xml.apache.org/xalan" xmlns:counter="mycounter" extension-element-prefixes="counter" version="1.0"> <xalan:component prefix="counter" elements="init incr" functions="read"> <xalan:script lang="javascript"> var counters = new array(); function init (xslproc, elem) { name = elem.getattribute ("name"); value = parseint(elem.getattribute ("value")); counters[name] = value; return null; } function read (name) { return "" + (counters[name]); } function incr (xslproc, elem) { name = elem.getattribute ("name"); counters[name]++; return null; } </xalan:script> </xalan:component> <xsl:template match="/"> <html> <h1>javascript example.</h1> <counter:init name="index" value="1"/> <p>here names in alphabetical order last name:</p> <xsl:for-each select="doc/name"> <xsl:sort select="@last"/> <xsl:sort select="@first"/> <p> <xsl:text>[</xsl:text> <xsl:value-of select="counter:read('index')"/> <xsl:text>]. </xsl:text> <xsl:value-of select="@last"/> <xsl:text>, </xsl:text> <xsl:value-of select="@first"/> </p> <counter:incr name="index"/> </xsl:for-each> </html> </xsl:template> </xsl:stylesheet> data.xml:
<?xml version="1.0"?> <doc> <name first="sanjiva" last="weerawarana"/> <name first="joseph" last="kesselman"/> <name first="stephen" last="auriemma"/> <name first="igor" last="belakovskiy"/> <name first="david" last="marston"/> <name first="david" last="bertoni"/> <name first="donald" last="leslie"/> <name first="emily" last="farmer"/> <name first="myriam" last="midy"/> <name first="paul" last="dick"/> <name first="scott" last="boag"/> <name first="shane" last="curcuru"/> <name first="marcia" last="hoffman"/> <name first="noah" last="mendelsohn"/> <name first="alex" last="morrow"/> </doc>
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