On 24/07/2009, Noel O'Brien <[email protected]> wrote:
> Hi,
>
>  There are no errors in the jmeter log, only info logged by the script:
>
>  2009/07/24 10:52:23 INFO - jmeter.util.BeanShellTestElement: Starting 
> /home/nobrien/projects/newbay/main/sng/sng-acceptance-tests/test/jmeter/data/scripts/ExtractOrderedEntries.bsh
>  2009/07/24 10:52:23 DEBUG - jmeter.util.BeanShellTestElement: Parameters:
>  2009/07/24 10:52:24 INFO - jmeter.util.BeanShellTestElement: Finished 
> /home/nobrien/projects/newbay/main/sng/sng-acceptance-tests/test/jmeter/data/scripts/ExtractOrderedEntries.bsh
>  (341ms)
>
>  However I was playing around and think I may have a lead. I developed the 
> spike script in JEdit and used it's built-in console for running it (this is 
> where everything worked). I discovered though that JEdit seems to be using a 
> different version of Java:
>
>  In JEdit Console:
>
>  /home/nobrien/sandbox/Java/XPath> java -version
>  java version "1.6.0_0"
>  OpenJDK Runtime Environment (IcedTea6 1.4.1) (6b14-1.4.1-0ubuntu10)
>  OpenJDK Server VM (build 14.0-b08, mixed mode)
>  Process java exited with code 0
>
>  In system console:
>
>  nobr...@olympia:~/sandbox/Java/XPath$ java -version
>  java version "1.6.0_12"
>  Java(TM) SE Runtime Environment (build 1.6.0_12-b04)
>  Java HotSpot(TM) Server VM (build 11.2-b01, mixed mode)
>
>  Strangely, the XPath expressions successfully match nodes when the program 
> is run from the IcedTea6 JVM but match nothing when run from the Sun 6 JVM. 
> JMeter is run using the Sun 6 JVM which would explain why the beanshell in my 
> JMeter plan is nbot matching anything either.
>
>  I'm not really sure where to go from here: is it a classpath issue or 
> perhaps a bug in the Sun6 JDK? Does anyone have any suggestions on what to 
> try?

Does XPath Extractor work OK if used to extract one set of nodes (add
a Debug Sampler to show the variables it sets up)?
If so, you could use 4 of them and then process the variables using BeanShell.

Or you could extract the code and use it in BeanShell.

Note that you can also run BeanShell in stand-alone mode for testing.

>  Regards,
>  Noel
>
>
>  ----- "sebb" <[email protected]> wrote:
>  > Check jmeter log file for errors from BeanShell.
>  >
>  > Are you seeing the final log message from the BeanShell script?
>  >
>  > On 22/07/2009, Noel O'Brien <[email protected]> wrote:
>  > > Hi,
>  > >
>  > > I have to extract an correlate many values from an XML feed. I then need 
> to sort the entries, store them, and compare them against subsequent feeds.
>  > >
>  > > Given the complexity of the task, I decided to do it with a Beanshell 
> Post-Processor. I first spiked the code in Java and everything worked. 
> However when I moved it into JMeter/Beanshell, the evaluation of the XPath 
> expressions always returns 0 nodes. Making the Document namespace-aware makes 
> no difference. The document parses fine, and printing out "new String(data, 
> "UTF-8")" displays the correct data returned by the sampler.
>  > >
>  > > Can anyone think of any reasons why this could be happening?
>  > >
>  > > Here's the code:
>  > >
>  > > >>>>>>>>>>>>>>>>>>>>
>  > >
>  > > import org.w3c.dom.*;
>  > > import javax.xml.xpath.*;
>  > > import javax.xml.parsers.*;
>  > > import java.io.*;
>  > > import java.nio.*;
>  > > import java.nio.channels.*;
>  > > import org.xml.sax.*;
>  > >
>  > >
>  > > log.info("Starting "+getSourceFileInfo());
>  > > log.debug("Parameters: " + Parameters);
>  > > startTime = System.currentTimeMillis();
>  > >
>  > > params = Parameters.split("\\|");
>  > >
>  > > sns = params[0];
>  > >
>  > > // Method for retrieving Node text value
>  > > public static String getNodeValue(Node node)
>  > > {
>  > > if(!node.hasChildNodes()) return "";
>  > > else return node.getFirstChild().getNodeValue();
>  > > }
>  > >
>  > > // Build XML document from the response
>  > > DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
>  > > domFactory.setNamespaceAware(false);
>  > > DocumentBuilder builder = domFactory.newDocumentBuilder();
>  > > InputSource inStream = new InputSource();
>  > > inStream.setCharacterStream(new StringReader(new String(data, "UTF-8")));
>  > > Document doc = builder.parse(inStream);
>  > > XPath xpath = XPathFactory.newInstance().newXPath();
>  > >
>  > >
>  > > // Create XPath Expressions
>  > > XPathExpression updatedExpr = xpath.compile("/feed/entry/updated");
>  > > XPathExpression displayNameExpr = 
> xpath.compile("/feed/entry/author/name");
>  > > XPathExpression statusExpr = xpath.compile("/feed/entry/summary");
>  > > XPathExpression snsExpr = 
> xpath.compile("/feed/entry/source/author/name");
>  > >
>  > > // Evaluate XPath Expressions
>  > > NodeList updatedNodes = (NodeList)updatedExpr.evaluate(doc, 
> XPathConstants.NODESET);
>  > > NodeList displayNameNodes = (NodeList)displayNameExpr.evaluate(doc, 
> XPathConstants.NODESET);
>  > > NodeList statusNodes = (NodeList)statusExpr.evaluate(doc, 
> XPathConstants.NODESET);
>  > > NodeList snsNodes = (NodeList)snsExpr.evaluate(doc, 
> XPathConstants.NODESET);
>  > >
>  > > System.out.println("updatedNodes: "+updatedNodes.getLength());
>  > > System.out.println("displayNameNodes: "+displayNameNodes.getLength());
>  > > System.out.println("statusNodes: "+statusNodes.getLength());
>  > > System.out.println("snsNodes: "+snsNodes.getLength());
>  > >
>  > > // Create data types
>  > > /* HashSet<List> set = new HashSet<List>();
>  > > TreeMap<Date, HashSet<List>> tree = new TreeMap<Date, HashSet<List>>();*/
>  > >
>  > > // Put values in data structure
>  > > for(int i =0; i < updatedNodes.getLength(); i++)
>  > > {
>  > > String u = getNodeValue(updatedNodes.item(i));
>  > > String d = getNodeValue(displayNameNodes.item(i));
>  > > String s1 = getNodeValue(statusNodes.item(i));
>  > > String s2 = getNodeValue(snsNodes.item(i));
>  > >
>  > > // do more stuff
>  > > }
>  > >
>  > >
>  > > // Store tree in Object variable
>  > > //vars.putObject("individual.friends.statuses.tree", tree);
>  > >
>  > > finishTime = System.currentTimeMillis();
>  > > log.info("Finished "+getSourceFileInfo()+" (" + (finishTime-startTime) + 
> "ms)");
>  > >
>  > > <<<<<<<<<<<<<<<<<<<<
>  > >
>  > > JMeter: 2.3.2
>  > > Java 1.6.0_12
>  > > OS: Linux
>  > >
>  > > Regards,
>  > >
>  > > Noel
>  > >
>  >
>
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