xtext

How to invoke formatter programmatically in Xtext and get output string

Instead of calling save on resource I would like to convert model to string programmatically. I have already implemented formatter and tests for it so I would like to reuse it.

Is it possible, and if possible how?

Solution 
  •     @Inject
    private Provider<ResourceSet> rsp;
    
    @Inject
    private ISerializer ser;

    ...

    ResourceSet rs = rsp.get();
    Resource r = rs.createResource(URI.createURI("dummy.mydsl"));
    r.getContents().add(myModel);
    System.out.println(ser.serialize(myModel, SaveOptions.newBuilder().format().getOptions());