[no subject]

transformer.transform(new DOMSource(doc), new StreamResult(baos));

and the difference is substantial. Running in eClipse the average time
taken is usually 60-80ms whereas within the app server its 700-800ms.

I'm at a loss to understand what could be causing a 10 fold increase
in the time taken for exactly the same code. Are there any JVM or
other settings that might be causing this ?

To be certain that the App Server (and eClipse) were picking up the
Saxon JARs and not some other parser I included in the output the
vendor name and version, which in both cases reported :-

<!--XSLT vendor: SAXON 9.1.0.6 from Saxonica, XSLT version: 2.0, XSLT
vendor URL: http://www.saxonica.com/-->

Some example code and outputs below ..

Regards

Fraser.

Example code perfroming the transform (including some timing output) :-

public String transformXml(String inputXml, String xslFilePath, Vector
paramsVector,) throws Exception {

       long transformstart = System.currentTimeMillis();

       long start = System.currentTimeMillis();
       long end = 0L;
       long totalTime = 0L;

               ByteArrayInputStream bais = new
ByteArrayInputStream(inputXml.getBytes(stringEncoding));

               InputSource in = new InputSource(bais);
               DocumentBuilderFactory dfactory =
DocumentBuilderFactory.newInstance();
               dfactory.setNamespaceAware(true);
               Document doc = dfactory.newDocumentBuilder().parse(in);

               end = System.currentTimeMillis();
               totalTime = end - start;
               System.out.println("Time to parse input: " + totalTime);
               start = System.currentTimeMillis();

               TransformerFactory tFactory = cachingTransformerFactory;
               Transformer transformer;

               transformer = tFactory.newTransformer(new
StreamSource(new File(xslFilePath)));

               transformer.clearParameters();

               end = System.currentTimeMillis();
               totalTime = end - start;
               System.out.println("Time to create transformer: " + totalTime);
               start = System.currentTimeMillis();


               // Create an instance of the wbimb URI Resolver
               URIResolver objResolver = new MessageBrokerURIResolver();
               transformer.setURIResolver(objResolver);

               end = System.currentTimeMillis();
               totalTime = end - start;
               System.out.println("Time to set URIResolver: " + totalTime);
               start = System.currentTimeMillis();

               ByteArrayOutputStream baos = new ByteArrayOutputStream();

               //set parameters
               for (int x = 0; x < paramsVector.size(); x++) {
                       Parameter param = (Parameter) paramsVector.get(x);
                       transformer.setParameter(param.name, param.value);
               }

               end = System.currentTimeMillis();
               totalTime = end - start;
               System.out.println("Time to parse params: " + totalTime);
               start = System.currentTimeMillis();

               /******* THIS IS WHERE MOST OF THE TIME TAKEN IS ********/
               transformer.transform(new DOMSource(doc), new
StreamResult(baos));

               end = System.currentTimeMillis();
               totalTime = end - start;
               System.out.println("Time to perform transform: " + totalTime);
               start = System.currentTimeMillis();

               baos.close();
               byte[] data = baos.toByteArray();
               String outputString = null;
               try {
                       outputString = new String(data, stringEncoding);
               } catch (Exception e) {
                       String message = "Got Exception converting the
output of transform to String using encoding: " + stringEncoding;
                       throw new Exception(message);
               }

               end = System.currentTimeMillis();
               totalTime = end - start;
               System.out.println("Time to convert the output of the
transform to a String: " + totalTime);

               long transformend = System.currentTimeMillis();
               long transformtotalTime = transformend - transformstart;
               System.out.println("Total time to run XSLT: " +
transformtotalTime);

               return outputString;

       }


... and this is some typical output from running in eClipse (I'm
running 20 iterations here) :-

===================================================
TEST : validResponse_CachedStylesheet
===================================================
Time to parse input: 172
Time to create transformer: 547
Time to set URIResolver: 0
Time to parse params: 0
Time to perform transform: 187
Time to convert the output of the transform to a String: 0
Total time to run XSLT: 906
Time to parse input: 0
Time to create transformer: 0
Time to set URIResolver: 0
Time to parse params: 0
Time to perform transform: 94
Time to convert the output of the transform to a String: 0
Total time to run XSLT: 94
Time to parse input: 0
Time to create transformer: 0
Time to set URIResolver: 0
Time to parse params: 0
Time to perform transform: 78
Time to convert the output of the transform to a String: 0
Total time to run XSLT: 78
Time to parse input: 0
Time to create transformer: 0
Time to set URIResolver: 0
Time to parse params: 0
Time to perform transform: 78
Time to convert the output of the transform to a String: 0
Total time to run XSLT: 78
...
Total time to run XSLT for (20) iterations : 2500
Average time to run XSLT for (20) iterations : 125

Heres some Log4j output from running the same code in the App Server
(note the LAST entry - 735ms) :-

<PrimaryLogText>CachingTransformerFactory: Entry for file [C:\Program
Files\IBM\MQSI\6.1\bin\..\config\flows\service\exceedinboundadapter\resources\retrievepolicysummarylistbyclientref\validation\validateResponse.xslt]
FOUND in CACHE..</PrimaryLogText>

<PrimaryLogText>CachingTransformerFactory: Using CACHED stylesheet
[C:\Program Files\IBM\MQSI\6.1\bin\..\config\flows\service\exceedinboundadapter\resources\retrievepolicysummarylistbyclientref\validation\validateResponse.xslt]..</PrimaryLogText>

<PrimaryLogText>eXSLTPerformance.EnhancedXMLTransformationNode: Time
to create transformer: 0.</PrimaryLogText>

<PrimaryLogText>eXSLTPerformance.EnhancedXMLTransformationNode: Time
to set URIResolver: 0.</PrimaryLogText>

<PrimaryLogText>eXSLTPerformance.EnhancedXMLTransformationNode: Time
to parse params: 0.</PrimaryLogText>

<PrimaryLogText>eXSLTPerformance.EnhancedXMLTransformationNode: Time
to perfrom transform: 735.</PrimaryLogText>