[jboss-user] [JBoss jBPM] - Re: invoke called, but our invoker is disconnected

bertrand.njiipwo do-not-reply at jboss.com
Tue Jan 9 19:17:24 EST 2007

Hello Alex,

I have chosed the second alternative. I was trying to let the jbpm.bpel module to read the received SOAPMessage:

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  | 	<SOAP-ENV:Body>
  | 		<m:apply xmlns:m="urn:samples:loanapproval">
  | 			<loanRequestParameters>
  | 				<firstName>Bertrand</firstName>
  | 				<lastName>Njipwo</lastName>
  | 				<amount>1000</amount>
  | 			</loanRequestParameters>
  | 		</m:apply>
  | 	</SOAP-ENV:Body>
  | </SOAP-ENV:Envelope>

In PortConsumer.java the following lines:

SOAPElement operationElem = XmlUtil.getElement(envelope.getBody());
  |  Map outputParts = new HashMap();
  |     // fill in part values
  |     Iterator partIt = parts.iterator();
  |     while (partIt.hasNext()) {
  |       Part part = (Part) partIt.next();
  |       String partName = part.getName();
  |       // get part accessor from operation wrapper 
  |       SOAPElement operPartAccessor = XmlUtil.getElement(operationElem, partName);
  |       // create part accessor in output message
  |       Element outputPartAccessor = XmlUtil.createElement(null, partName);
  |       outputParts.put(partName, outputPartAccessor);
  |       // copy operation part to output part
  |       operPartAccessor.getValue();
  |       XmlUtil.copy(outputPartAccessor, operPartAccessor);
  |     }
  |     return outputParts;
 will copy the informations of the SOAPElement operPartAcessor to the outputPartAccessor and therefore retrieve the value received from the remote service and with that value initialise the outputPartAccessor-object. 

But i'm falling at: XmlUtil.copy(outputPartAccessor, operPartAccessor); 
If i call any methode on operPartAccessor it raises a NullpointerException.

That why after this call the highlighted  methodes also throw the same Exception.

 public static void copy(Element target, SOAPElement source) {
  |     // attributes
  |     removeAttributes(target);
  | copyAttributes(target, source);    
  |     // all namespaces
  |     copyVisibleNamespaces(target, source);
  |     // child nodes
  |     removeChildNodes(target);
  | copyChildNodes(target, source);
  |     if (log.isTraceEnabled()) log.trace("copied element: " + source.getNodeName());
  |   }

So copyAttributes will fail because the SOAPElement operPartAccessor has no Attributes. One question:  (Which methode give the value of the operPartAccessort ? I have tried with to manipulate the operPartAccessort  as DOM object by call getChildrens(), but its always fail).

My question is how could i get the value true of true in the following message send by the remote server: <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  | 	<soapenv:Body>
  | 		<validCustomerResponse xmlns="urn:samples:schufa">
  | 			<validCustomerReturn>true</validCustomerReturn>
  | 		</validCustomerResponse>
  | 	</soapenv:Body>
  | </soapenv:Envelope>

I have comment out the following line in PortConsumer.java: XmlUtil.copy(outputPartAccessor, operPartAccessor); so i can achieve a "cleaned" process excecution  and so i can make some performance measurements during the process execution. This is a temporary solution to be able to work. After doing this i become the following message:

<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
  | 	<env:Header/>
  | 	<env:Body>
  | 		<m:applyResponse xmlns:m="urn:examples:loanapproval">
  | 			<loanResponse>
  | 				<approved/>
  | 			</loanResponse>
  | 		</m:applyResponse>
  | 	</env:Body>
  | </env:Envelope>

Alex why i can't copy the desired value the remote service send me in my BPEL process.

Thanks once again for your help and the time you invest.



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