@Inject
	private AxacmlGenerator generator;

	@Inject
	IResourceDescriptions resourceDescriptions;

	@Inject
	IResourceSetProvider resourceSetProvider;

	@Inject 
	private JavaIoFileSystemAccess fileAccess;

	@Override
	public Object execute(ExecutionEvent event) throws ExecutionException {

		ISelection selection = HandlerUtil.getCurrentSelection(event);
		IStructuredSelection structuredSelection = (IStructuredSelection) selection;
		Object firstElement = structuredSelection.getFirstElement();
		if (firstElement instanceof IFile) {

			IFile file = (IFile) firstElement;
			IProject project = file.getProject();
			//IFolder srcGenFolder = project.getFolder("src");

			URI uri = URI.createPlatformResourceURI(file.getFullPath().toString(), true);
			ResourceSet rs = resourceSetProvider.get(project);
			Resource r = rs.getResource(uri, true);

			generator.doGenerate(r, fileAccess);
		}
		return null;
	}

fsa.setMonitor(new NullProgressMonitor());
fsa.setProject(project);