How to use ora:parseEscapedXML() Function with String Content

Question

Hello,
I am receiving a ResponseMessage that returns a string, but the content of the string is actually XML. I have tried to use the ora:parseEscapedXML() function to parses the string (see XML Fragment below) to return structured XML data that can be assigned to typed BPEL variables. The documentation is very limited for this (I've looked in the Developer Guide draft that is available at the OraBPEL site).
2 customer records from XML literal fragment copied from string result:
<?xml version="1.0" encoding="ISO-8859-1"?>
<recordset>
<customer>
<CustNum>AROUT</CustNum>
<CustLName>Hardy</CustLName>
<CustFname>Thomas</CustFname>
<CustEmail>[email protected]</CustEmail>
<CustAddress>120 Hanover Sq.</CustAddress>
<CustCity>London</CustCity>
<CustRegion></CustRegion>
<CustPostalCode>WA1 1DP</CustPostalCode>
<CustCountry>UK</CustCountry>
</customer>
<customer>
<CustNum>BSBEV</CustNum>
<CustLName>Ashworth</CustLName>
<CustFname>Victoria</CustFname>
<CustEmail>Victoria.Ashworth@B&apos;s.com</CustEmail>
<CustAddress>Fauntleroy Circus</CustAddress>
<CustCity>London</CustCity>
<CustRegion></CustRegion>
<CustPostalCode>EC2 5NT</CustPostalCode>
<CustCountry>UK</CustCountry>
</customer>
The copy rule for assigning CustNum to accountnumber that fails:
<copy>
<from expression="ora:parseEscapedXML(bpws:getVariableData('DataService_OutputVariable','invokeSpecMsgReturn','/recordset/customer/CustNum'))"/>
<to variable="outputVariable" part="payload" query="/client:QueryResult/client:customer/client:accountNumber"/>
</copy>
Any help would be greatly appreciated.
Thanks,
Sean

Answer 1

Hello,
I am attempting to provide more information in order to hopefully get some better guidance here.
1) The BPEL process I built receives input from a client that is one of city name or region name or postal code or country name and returns a list of customer records with their AccountNumber, LastName, FirstName, Email, Address, City, Region, PostalCode and Country. The BPEL flow invokes a packaged integration Web Service that retuns the records in a string whose content is XML (see XML fragment below).
2) The string content returned is vaiable based on the input (i.e. city name="London")
Two customer records from XML literal fragment copied from string result:
<?xml version="1.0" encoding="ISO-8859-1"?>
<recordset>
<customer>
<CustNum>AROUT</CustNum>
<CustLName>Hardy</CustLName>
<CustFname>Thomas</CustFname>
<CustEmail>[email protected]</CustEmail>
<CustAddress>120 Hanover Sq.</CustAddress>
<CustCity>London</CustCity>
<CustRegion></CustRegion>
<CustPostalCode>WA1 1DP</CustPostalCode>
<CustCountry>UK</CustCountry>
</customer>
<customer>
<CustNum>BSBEV</CustNum>
<CustLName>Ashworth</CustLName>
<CustFname>Victoria</CustFname>
<CustEmail>Victoria.Ashworth@B&apos;s.com</CustEmail>
<CustAddress>Fauntleroy Circus</CustAddress>
<CustCity>London</CustCity>
<CustRegion></CustRegion>
<CustPostalCode>EC2 5NT</CustPostalCode>
<CustCountry>UK</CustCountry>
</customer>
I want to <assign> each record from the packaged integration service result (the string whose content is XML) to a complexType variable defined within the BPEL Process WSDL (see example below).
XML fragment from BPEL WSDL:
<element name="QueryResult" type="client:recordType"/>>
<complexType name="recordType">
<sequence>
<element name="customer" type="client:customerType" maxOccurs="unbounded"/>
</sequence>
</complexType>
<complexType name="customerType">
<sequence>
<element name="accountNumber" type="string"/>
<element name="lastName" type="string"/>      
<element name="firstName" type="string"/>
<element name="email" type="string"/>
<element name="address" type="string"/>
<element name="city" type="string"/>
<element name="region" type="string"/>
<element name="postalcode" type="string"/>
<element name="country" type="string"/>
</sequence>                         
</complexType>
I have read through the tutorial and reviwed the XPath Funtion example in the reference (C:\OraBPELPM_1\integration\bpelpm\orabpel\samples\references\XPathFunction), but I am stsill very unclear as to how to handle this. I would appreciate any and all help.
Thanks,
Sean