unmarshal xml to object for a nested tag

Question

I've got some generated classes from a 3rd party provider for their API - specifically Companies House ( http://xmlgw.companieshouse.gov.uk/ )

I'm having trouble unmarshalling the parts of the response from the API. I can cast the object to a GovTalkMessage object, which contains a Body tag - but the underlying object I get back after unsmarshalling is a ElementNSImpl object instead of the expected pojo.

Example

I create a request like this one: http://xmlgw.companieshouse.gov.uk/examples/companydetails_req.xml

And get a response like this one: http://xmlgw.companieshouse.gov.uk/examples/companydetails_reply.xml

You can see in the reply that there is:

<Body>
<CompanyDetails xmlns="http://xmlgw.companieshouse.gov.uk/v1-0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlgw.companieshouse.gov.uk/v1-0/schema/CompanyDetails-v2-1.xsd">
    ...
</Body>

So the contents of the Body (which is a List<Object> in the generated GovTalkMessage pojo) should have a CompanyDetails object in the first element of the list. I instead have ElementNSImpl .

Here's the marshalling code, which works fine - can send it to the API endpoint and comes back with an xml response like the example above:

JAXBContext context = JAXBContext.newInstance(GovTalkMessage.class, CompanyDetailsRequest.class, CompanyDetails.class);
Marshaller marshaller = context.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);

InputStream in = Request.Post ... //omitted - send to server, get response

Unmarshaller unmarshaller = context.createUnmarshaller();
GovTalkMessage reply = (GovTalkMessage)unmarshaller.unmarshal(in); //ok
Object object = reply.getBody().getAny().get(0); 
//object is ElementNSImpl - should be CompanyDetails

Am I doing something wrong in the unmarshal?

Thanks in advance

UPDATE

If I modify the package-info.java to have

namespace = "http://xmlgw.companieshouse.gov.uk/v1-0/schema"

instead of

namespace = "http://www.govtalk.gov.uk/CM/envelope"

then the unmarshal works. But I can't get both marshal into GovTalkMessage and unmarshal into CompanyAppointments to work, even if I specify it directy:

JAXBContext payloadContext = JAXBContext.newInstance(CompanyAppointments.class);
Unmarshaller unmarshaller = payloadContext.createUnmarshaller();
unmarshaller.unmarshal((Node)message.getBody().getAny().get(0), CompanyAppointments.class).getValue();

This just gives me a CompanyAppointments with fields full of nulls.

Answer 1

It seems namespace used for generating binding classes and one received in response are conflicted.

binding class and XML response will be required to point out error here :).

I'll suggest you to use package name in place of classes for creating JAXBContext.

final JAXBContext context = JAXBContext.newInstance("com.something"...);

unmarshal xml to object for a nested tag

Question

1 answers

solution1
0 2014-07-08 08:24:05

unmarshal xml to object for a nested tag

Question

1 answers

solution1 0 2014-07-08 08:24:05

solution1
0 2014-07-08 08:24:05