Java Embedding setVariableData not working - Urgent

Question

Hi Guys,
I tried a simple HelloWord/Echo Kinda example, accessing input variable using getVariableData and assigning it to output variable using setVariable data in Java Embedding. It's throwing an error.
JavaEnbedCode :
String xmlData = ((oracle.xml.parser.v2.XMLElement) getVariableData("inputVariable","payload","/client:HelloJavaEmbedBPELProcessRequest/client:input")).getFirstChild().getNodeValue();
setVariableData("outputVariable","payload","/client:HelloJavaEmbedBPELProcessResponse/client:result",xmlData);
Imports:
<bpelx:exec import="java.util.*"/>
<bpelx:exec import="java.lang.*"/>
<bpelx:exec import="java.rmi.RemoteException"/>
<bpelx:exec import="javax.naming.NamingException"/>
<bpelx:exec import="org.w3c.dom.Element"/>
<bpelx:exec import="java.math.*"/>
<bpelx:exec import="java.io.*"/>
<bpelx:exec import="java.net.*"/>
Error:
<selectionFailure xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/"><part name="summary"><summary>faultName: {{http://schemas.xmlsoap.org/ws/2003/03/business-process/}selectionFailure}
messageType: {}
parts: {{summary=&lt;summary>XPath query string returns zero node.
According to BPEL4WS spec 1.1 section 14.3, The assign activity &amp;amp;lt;to&amp;amp;gt; part query should not return zero node.
Please check the BPEL source at line number "" and verify the &amp;amp;lt;to&amp;amp;gt; part xpath query.
&lt;/summary>
</summary>
</part></selectionFailure>
I am using Jdev 10.1.3.3 and SOA Suite 10.1.3.3
Thanks in adavance.

Answer 1

I gave up trying to reference elements, especially those that are accessed through the input and output messages and leave that up to BPEL Assigns. So my inline Java looks like this and it works in 10.1.3.3.
Hopefully the forum leaves enough of the formatting intact for you to get the idea.
/*Write your java code below e.g.
     System.out.println("Hello, World");
try{                                                              
String in = (String)getVariableData("Input_Value");
addAuditTrailEntry("You Entered: " + in);
int InvalidCharsFound = 0;
String ValidChars="0123456789.";
String FilteredChars="$ ,";
String TempChar="";
String Tempstring="";
int innum;
double inval;
innum=in.length();//get string length
for (int i=0;i<innum;i++){         
TempChar = in.substring(i,i+1);
if (ValidChars.contains(TempChar)){         
Tempstring+=TempChar;
else {         
if (FilteredChars.contains(TempChar)){   
//filtered char was found
addAuditTrailEntry("A filtered character was found such as: " + FilteredChars);
else{   
//invalid chars
InvalidCharsFound = 1;
addAuditTrailEntry("An invalid character was found");
if (InvalidCharsFound == 0){  
//clean number input was detected so proceed.
inval = Double.valueOf(Tempstring).doubleValue();
inval *= 100;//multiply by 100
addAuditTrailEntry("Times 100 is: " + inval);
double out = Math.rint(inval);
addAuditTrailEntry("Rounded is: " + out);
out /= 100;
addAuditTrailEntry("Divided by 100 is: " + out);
DecimalFormat myFormatter = new DecimalFormat("###.00");
String output = myFormatter.format(out);
addAuditTrailEntry("Formated is: " + output);
setVariableData("Output_Value",output);
else
// The number input was not a good clean number
setVariableData("Output_Value","ERROR the input was not a number");
catch(Exception e){                                                                    
addAuditTrailEntry(e);
If you actually find this Java example that I made usefull keep in mind the Math.rint
function incorrectly rounds 100.5 to 100 instead of 101. Or in other words with this program if you try to round 100.245 it will produce 100.24. This is not a problem for what I'm using it for as I'm simply trying to correct small inaccuracies found when adding 2 currency numbers using BPEL see Bug No. 6451541
As far as the Math.rint "bug" I have found this same issue duscussed on the sun java forums and as far as I can tell someone who is mathematically brilliant (compared to me) decided that this was the correct way to round. I'm glad I'm not in school any more.
Oh the complete BPEL source looks like this (I probably should have included this instead)
<?xml version = "1.0" encoding = "UTF-8" ?>
<!--
Oracle JDeveloper BPEL Designer
Created: Tue Sep 04 10:45:03 PDT 2007
Author: RTaylor
Purpose: Synchronous BPEL Process
-->
<process name="BPEL_Round_Currency"
targetNamespace="http://xmlns.oracle.com/BPEL_Round_Currency"
xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
xmlns:bpws="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
xmlns:xp20="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.Xpath20"
xmlns:ldap="http://schemas.oracle.com/xpath/extension/ldap"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:bpelx="http://schemas.oracle.com/bpel/extension"
xmlns:client="http://xmlns.oracle.com/BPEL_Round_Currency"
xmlns:ora="http://schemas.oracle.com/xpath/extension"
xmlns:orcl="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.ExtFunc">
<!--
PARTNERLINKS
List of services participating in this BPEL process
-->
<partnerLinks>
<!--
The 'client' role represents the requester of this service. It is
used for callback. The location and correlation information associated
with the client role are automatically set using WS-Addressing.
-->
<partnerLink name="client" partnerLinkType="client:BPEL_Round_Currency"
myRole="BPEL_Round_CurrencyProvider"/>
</partnerLinks>
<!--
VARIABLES
List of messages and XML documents used within this BPEL process
-->
<variables>
<!-- Reference to the message passed as input during initiation -->
<!-- Reference to the message that will be returned to the requester-->
<variable name="inputVariable"
messageType="client:BPEL_Round_CurrencyRequestMessage"/>
<variable name="outputVariable"
messageType="client:BPEL_Round_CurrencyResponseMessage"/>
<variable name="Input_Value" type="xsd:string"/>
<variable name="Output_Value" type="xsd:string"/>
</variables>
<!--
ORCHESTRATION LOGIC
Set of activities coordinating the flow of messages across the
services integrated within this business process
-->
<sequence name="main">
<!-- Receive input from requestor. (Note: This maps to operation defined in BPEL_Round_Currency.wsdl) -->
<receive name="receiveInput" partnerLink="client"
portType="client:BPEL_Round_Currency" operation="process"
variable="inputVariable" createInstance="yes"/>
<!-- Generate reply to synchronous request -->
<assign name="Copy_Input">
<copy>
<from variable="inputVariable" part="payload"
query="/client:BPEL_Round_CurrencyProcessRequest/client:input"/>
<to variable="Input_Value"/>
</copy>
<copy>
<from variable="inputVariable" part="payload"
query="/client:BPEL_Round_CurrencyProcessRequest/client:input"/>
<to variable="Output_Value"/>
</copy>
</assign>
<bpelx:exec import="java.text.DecimalFormat"/>
<bpelx:exec name="Round_Output" language="java" version="1.3">
<![CDATA[/*Write your java code below e.g.                                       
     System.out.println("Hello, World");                                      
try{                                                              
   String in = (String)getVariableData("Input_Value");                                                                   
   addAuditTrailEntry("You Entered: " + in);  
   int InvalidCharsFound = 0;  
   String ValidChars="0123456789.";   
   String FilteredChars="$ ,";   
   String TempChar="";         
   String Tempstring="";         
   int innum;         
   double inval;         
   innum=in.length();//get string length         
   for (int i=0;i<innum;i++){         
          TempChar = in.substring(i,i+1);         
          if (ValidChars.contains(TempChar)){         
              Tempstring+=TempChar;         
else {         
if (FilteredChars.contains(TempChar)){   
//filtered char was found
addAuditTrailEntry("A filtered character was found such as: " + FilteredChars);
else{   
//invalid chars
InvalidCharsFound = 1;
addAuditTrailEntry("An invalid character was found");
if (InvalidCharsFound == 0){  
//clean number input was detected so proceed.
inval = Double.valueOf(Tempstring).doubleValue();
inval *= 100;//multiply by 100
addAuditTrailEntry("Times 100 is: " + inval);
double out = Math.rint(inval);
addAuditTrailEntry("Rounded is: " + out);
out /= 100;
addAuditTrailEntry("Divided by 100 is: " + out);
DecimalFormat myFormatter = new DecimalFormat("###.00");
String output = myFormatter.format(out);
addAuditTrailEntry("Formated is: " + output);
setVariableData("Output_Value",output);
else
// The number input was not a good clean number
setVariableData("Output_Value","ERROR the input was not a number");
catch(Exception e){                                                                    
addAuditTrailEntry(e);
}]]>
</bpelx:exec>
<assign name="Copy_Output">
<copy>
<from variable="Output_Value"/>
<to variable="outputVariable" part="payload"
query="/client:BPEL_Round_CurrencyProcessResponse/client:result"/>
</copy>
</assign>
<reply name="replyOutput" partnerLink="client"
portType="client:BPEL_Round_Currency" operation="process"
variable="outputVariable"/>
</sequence>
</process>