[news.eclipse.technology.ohf] Re: ProvideAndRegisterDocumentSetType -->

[Matthew Davis <mattadav@xxxxxxxxxx>]

Hi Stefan,

Indeed this is --- kinda simple.  So, one thing to start with is - when 
sending the payload to the registry from a repository, you will need to 
convert from the ProvideAndRegisterDocumentSetType back to an ebXML 
SubmitObjectsRequestType.  Once you're back into that type, then you can 
submit to the repository.

The way we handle this in the XDS Source and XDS Consumer is 
straightforward.  In general, it requires three things:

1.  Convert the ProvideAndRegisterDocumentSetType (XDS) object to 
SubmitObjectsRequestType (ebXML) object
2.  Convert the EMF-created SubmitObjectsRequestType object to a DOM object
3.  Convert the DOM object to OM for use with Axis2.


Converting from ProvideAndRegisterDocumentSetType (XDS) object to 
SubmitObjectsRequestType (ebXML) object
---

For XDS.a:

EbXML_2_1ProvideAndRegisterDocumentSetTransformer setTransformer = new 
EbXML_2_1ProvideAndRegisterDocumentSetTransformer();
setTransformer.transform(prDocumentSetTypeObject);
SubmitObjectsRequestType submitObjectsRequest = 
setTransformer.getSubmitReq()


For XDS.b:

EbXML_3_0ProvideAndRegisterDocumentSetTransformer setTransformer = new 
EbXML_3_0ProvideAndRegisterDocumentSetTransformer();
setTransformer.transform(prDocumentSetTypeObject);
SubmitObjectsRequestType submitObjectsRequest = 
setTransformer.getSubmitReq()



Converting from EMF to DOM
---
This conversion requires the creation of an empty DOM Document and then 
using the EMF XMLResource's "save" method to save EMF to DOM.  Code 
snippet looks something like this:

// Create DOM Document Instance
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setNamespaceAware(true);
DocumentBuilder builder = factory.newDocumentBuilder();
org.w3c.dom.Document domDocument = builder.newDocument();

// Convert / "save" EMF to DOM
RegistryPackage packageInstance = RegistryPackage.eINSTANCE;
DocumentRoot root = RegistryFactory.eINSTANCE.createDocumentRoot();
root.setSubmitObjectsRequest(submitObjectsRequest);
XMLResource resource = (XMLResource)(new 
RegistryResourceFactoryImpl()).createResource(URI.createURI(RegistryPackage.eNS_URI));
resource.getContents().add(root);
resource.save(domDocument, new HashMap(), new DefaultDOMHandlerImpl());
resource.unload();

Element domElement = domDocument.getDocumentElement();



Converting from DOM to OM
---
Apache Axis provides a utility to convert from DOM to OM (and back).
Use this:

OMElement omElement = org.apache.axis2.util.XMLUtils.toOM(domElement);




The P&R element should now be "sendable" over the wire.

I put this together pretty fast, so I'm sure I missed something, but 
might give it a try!

-Matt



Stefan S. wrote:
> Hi Everybody!
>
> I have a very basic question - at least I hope it is basic ;) - that is 
> bothering me for days now!
>
> I have metadata - received by an ITI-15 request - in form of an 
> ProvideAndRegisterDocumentSetType. Now I am changing and adding some 
> specific attributes. As an example - just for testing -  I am trying to 
> add a XDSDocumentEntry.size to every DocumentEntryType with a simple 
> loop like:
>
> for (DocumentEntryType documentEntry : 
> (EList<DocumentEntryType>)xdsMetadata.getDocumentEntry()) {
>             documentEntry.setSize("123456");
>         }
>
> Now my problem is, that I want to send this "modified" metadata to an 
> IHE Registry using ITI-14.
> Therefore I have to convert this metadata 
> -ProvideAndRegisterDocumentSetType - to an OMElement.
>
> But I am really stuck on how to solve this problem.
> I hope someone can help me!
>
> Thanks in Advance for both your time and your knowledge!
>
> Greetings
> Stefan