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Informatica Powercenter: How to run a XSLT transform on a XML document

+1 vote

I have a complex XML document that the informatica XML parser struggles with "normalizing", how can I run a XML transformation such as XSLT to simplfy it prior to sending it into the XML parser.

posted Sep 10, 2014 by Sunil

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1 Answer

0 votes

One way of doing this is to use the standard Java transform and use the standard javax.xml.transform API to perform the transformation.

To do this add a Java Transform to your flow
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In the Import Packages pane, import the required java packages

enter image description here

import javax.xml.transform.*;

In the Helper Code pane we construct a transformer object. As I understand non static fields are created per instance, so there should be no concurrency issues. (comments?)

enter image description here

private final Transformer transformer = getNewTransformer();

public Transformer getNewTransformer()
  // /opt/informatica/infadev/DataTransformation
  final String IFCMPath = System.getenv("IFCONTENTMASTER_HOME"); 
  final String xslt = IFCMPath + "/ServiceDB/xst/mytransform.xslt";
  logInfo("Using XSLT File" + xslt);
   return TransformerFactory.newInstance().newTransformer(new StreamSource(xslt));
  } catch(TransformerConfigurationException ex) {
    logError("Could not create TransformerFactory with xslt " + xslt );

  return null;

Finally we execute the transform on the incoming xml document by executing the transform method on the transformer object.

enter image description here

if( transformer == null ) {
    failSession("Transformer was null");

//final long startTime = System.nanoTime();
//final long endTime;

try {
    //logInfo("Recieved xml with size " + xmlin.length() );
    // logInfo("Recieved xml " + xmlin );
    final StringReader reader = new StringReader(xmlin);
    final StringWriter writer = new StringWriter();

    transformer.transform(new StreamSource(reader),new StreamResult(writer));
    xmlout = writer.toString();
   // logInfo("xmlout  " + xmlout  );
} catch (Exception e) {

//finally { 
//  endTime = System.nanoTime(); 

//final long duration = endTime - startTime; 
//logInfo("Duration  " + duration / **********.0 );
answer Sep 12, 2014 by Shweta Singh
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