Luca,

Comments below.

On 14/02/2012 7:20 PM, Luca Mising name wrote:
> Hi all,
>
> I have some doubts about the serialization of an EMF model on an XMI
> file.
>
> I looked some examples online and also the auto-generated test code.
>
> Currently this is my code (where MY_MODEL is the instance of the model
> I want to serialize):
>
>
> // Create a resource set to hold the resources.
> ResourceSet resourceSet = new ResourceSetImpl();
>
> // Register the appropriate resource factory to handle all file
> extensions.
> resourceSet.getResourceFactoryRegistry().getExtensionToFactoryMap().put(Resource.Factory.Registry.DEFAULT_EXTENSION,
> new XMIResourceFactoryImpl());
>
> // Register the package to ensure it is available during loading.
> resourceSet.getPackageRegistry().put(featureModelPackage.eNS_URI,
> featureModelPackage.eINSTANCE);
>
> // If there are no arguments, emit an appropriate usage message.
> try {
> Resource resource =
> resourceSet.createResource(URI.createURI("http:///" +
> MY_MODEL.getName() + ".xmi"));
> resource.getContents().add(MY_MODEL);
> resource.save(System.out, null);
>
> ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
>
> FileOutputStream fo = new FileOutputStream(new
> File("/tmp/model.rtt"));
>
> resource.save(fo, null);
> }
> catch (IOException exception) {
> exception.printStackTrace();
> }
>
>
> My questions are:
>
> 1) Is this the best way for doing the serialization on XMI?
No.
> 2) What does the following line of code do? Why does it need an URI?
It create a resource and determines which type based on the extension.
>
>
> Resource resource =
> resourceSet.createResource(URI.createURI("http:///" +
> MY_MODEL.getName() + ".xmi"));
If you want to save to some file location, using
URI.createFileURI(file.getAbsolutePath()) to create the URI and use that
in createResource and then just call save on the resource.
>
> Thanks in advance,
> Luca