Examples with RawDeleter org.osate.ge.businessobjecthandling.RawDeleter used on opensource projects

Example 1 with RawDeleter

use of org.osate.ge.businessobjecthandling.RawDeleter in project osate2 by osate.

the class DeleteHandler method execute.

@Override
public Object execute(final ExecutionEvent event) throws ExecutionException {
    final IEditorPart activeEditor = HandlerUtil.getActiveEditor(event);
    if (!(activeEditor instanceof InternalDiagramEditor)) {
        throw new RuntimeException("Unexpected editor: " + activeEditor);
    }
    final InternalDiagramEditor ageEditor = (InternalDiagramEditor) activeEditor;
    final ReferenceBuilderService refBuilder = Objects.requireNonNull((ReferenceBuilderService) ageEditor.getAdapter(ReferenceBuilderService.class), "Unable to retrieve reference builder service");
    final AadlModificationService aadlModificationService = Objects.requireNonNull((AadlModificationService) ageEditor.getAdapter(AadlModificationService.class), "Unable to retrieve modification service");
    // Get diagram and selected elements
    final List<DiagramElement> selectedDiagramElements = AgeHandlerUtil.getSelectedDiagramElements();
    if (!canExecute(selectedDiagramElements)) {
        throw new RuntimeException("canExecute() returned false");
    }
    if (!confirmDelete(selectedDiagramElements)) {
        return null;
    }
    final boolean boIsContext = anyBoIsDiagramContext(selectedDiagramElements, ageEditor.getDiagram(), refBuilder);
    ageEditor.getActionExecutor().execute("Delete", ExecutionMode.NORMAL, () -> {
        if (anyRequiresRawDelete(selectedDiagramElements)) {
            if (selectedDiagramElements.size() != 1) {
                throw new RuntimeException("Deleting multiple elements when using DeleteRaw is not supported");
            }
            final DiagramElement deToDelete = selectedDiagramElements.get(0);
            // This is safe because we have already check that at least one business object requires a raw deletion and there is exactly one
            // business object being deleted.
            final RawDeleter deleter = (RawDeleter) deToDelete.getBusinessObjectHandler();
            deleter.delete(new RawDeleteContext(deToDelete.getBusinessObject()));
        } else if (anyIsInAnnex(selectedDiagramElements)) {
            if (selectedDiagramElements.size() != 1) {
                throw new RuntimeException("Deleting multiple elements when deleting an element inside of an annex is not supported");
            }
            // Handle annex specially because we need to modify the annex itself instead of the root of the model.
            // Only a single annex element can be modified at a time because modifying annex elements as part of a
            // group is not supported.
            final BusinessObjectRemoval modInfo = createBusinessObjectRemovalOrRemoveDiagramElement(selectedDiagramElements.get(0));
            if (modInfo != null) {
                aadlModificationService.modify(modInfo.staleBoToModify, (boToModify) -> {
                    modInfo.remover.accept(boToModify);
                });
            }
        } else {
            // Group elements to be removed by resource. All the elements will be removed as part of the same modification.
            // This ensures that the appropriate element is retrieved regardless of the order in the model or the URI scheme.
            final ListMultimap<Resource, BusinessObjectRemoval> removals = ArrayListMultimap.create();
            for (final DiagramElement de : selectedDiagramElements) {
                final BusinessObjectRemoval removal = createBusinessObjectRemovalOrRemoveDiagramElement(de);
                if (removal != null) {
                    removals.put(removal.staleBoToModify.eResource(), removal);
                }
            }
            // Perform the modifications. One modification will be performed for each resource.
            final List<AadlModificationService.Modification<?, ?>> modifications = new ArrayList<>();
            for (final Entry<Resource, Collection<BusinessObjectRemoval>> entry : removals.asMap().entrySet()) {
                final Resource resource = entry.getKey();
                final EObject root = Objects.requireNonNull(resource.getContents().get(0), "unable to retrieve root element");
                final Modification<EObject, EObject> mod = AadlModificationService.Modification.create(root, (rootToModify) -> {
                    // could change in between removals and an incorrect element will be removed.
                    for (final BusinessObjectRemoval removal : entry.getValue()) {
                        final URI uri = EcoreUtil.getURI(removal.staleBoToModify);
                        Objects.requireNonNull(uri, "unable to retrieve uri for " + removal.staleBoToModify);
                        removal.boToModify = rootToModify.eResource().getResourceSet().getEObject(uri, true);
                    }
                    // Remove the business object using the stored business object to modify
                    for (final BusinessObjectRemoval removal : entry.getValue()) {
                        removal.remover.accept(removal.boToModify);
                    }
                });
                modifications.add(mod);
            }
            if (!modifications.isEmpty()) {
                aadlModificationService.modify(modifications);
            }
        }
        return null;
    });
    if (boIsContext) {
        // Close the editor if the context was deleted
        Display.getDefault().syncExec(() -> ageEditor.closeEditor());
    } else {
        ageEditor.clearSelection();
    }
    return null;
}