Examples with ChangeDescriptor org.eclipse.ltk.core.refactoring.ChangeDescriptor used on opensource projects

Example 1 with ChangeDescriptor

use of org.eclipse.ltk.core.refactoring.ChangeDescriptor in project che by eclipse.

the class RefactoringTest method performRefactoring.

protected final RefactoringStatus performRefactoring(Refactoring ref, boolean providesUndo) throws Exception {
    performDummySearch();
    IUndoManager undoManager = getUndoManager();
    if (DESCRIPTOR_TEST) {
        final CreateChangeOperation create = new CreateChangeOperation(new CheckConditionsOperation(ref, CheckConditionsOperation.ALL_CONDITIONS), RefactoringStatus.FATAL);
        create.run(new NullProgressMonitor());
        RefactoringStatus checkingStatus = create.getConditionCheckingStatus();
        if (!checkingStatus.isOK())
            return checkingStatus;
        Change change = create.getChange();
        ChangeDescriptor descriptor = change.getDescriptor();
        if (descriptor instanceof RefactoringChangeDescriptor) {
            RefactoringChangeDescriptor rcd = (RefactoringChangeDescriptor) descriptor;
            RefactoringDescriptor refactoringDescriptor = rcd.getRefactoringDescriptor();
            if (refactoringDescriptor instanceof JavaRefactoringDescriptor) {
                JavaRefactoringDescriptor jrd = (JavaRefactoringDescriptor) refactoringDescriptor;
                RefactoringStatus validation = jrd.validateDescriptor();
                if (!validation.isOK())
                    return validation;
                RefactoringStatus refactoringStatus = new RefactoringStatus();
                Class expected = jrd.getClass();
                RefactoringContribution contribution = RefactoringCore.getRefactoringContribution(jrd.getID());
                jrd = (JavaRefactoringDescriptor) contribution.createDescriptor(jrd.getID(), jrd.getProject(), jrd.getDescription(), jrd.getComment(), contribution.retrieveArgumentMap(jrd), jrd.getFlags());
                assertEquals(expected, jrd.getClass());
                ref = jrd.createRefactoring(refactoringStatus);
                if (!refactoringStatus.isOK())
                    return refactoringStatus;
                TestRenameParticipantSingle.reset();
                TestCreateParticipantSingle.reset();
                TestMoveParticipantSingle.reset();
                TestDeleteParticipantSingle.reset();
            }
        }
    }
    final CreateChangeOperation create = new CreateChangeOperation(new CheckConditionsOperation(ref, CheckConditionsOperation.ALL_CONDITIONS), RefactoringStatus.FATAL);
    final PerformChangeOperation perform = new PerformChangeOperation(create);
    perform.setUndoManager(undoManager, ref.getName());
    IWorkspace workspace = ResourcesPlugin.getWorkspace();
    if (fIsPreDeltaTest) {
        IResourceChangeListener listener = new IResourceChangeListener() {

            public void resourceChanged(IResourceChangeEvent event) {
                if (create.getConditionCheckingStatus().isOK() && perform.changeExecuted()) {
                    TestModelProvider.assertTrue(event.getDelta());
                }
            }
        };
        try {
            TestModelProvider.clearDelta();
            workspace.checkpoint(false);
            workspace.addResourceChangeListener(listener);
            executePerformOperation(perform, workspace);
        } finally {
            workspace.removeResourceChangeListener(listener);
        }
    } else {
        executePerformOperation(perform, workspace);
    }
    RefactoringStatus status = create.getConditionCheckingStatus();
    if (!status.isOK())
        return status;
    assertTrue("Change wasn't executed", perform.changeExecuted());
    Change undo = perform.getUndoChange();
    if (providesUndo) {
        assertNotNull("Undo doesn't exist", undo);
        assertTrue("Undo manager is empty", undoManager.anythingToUndo());
    } else {
        assertNull("Undo manager contains undo but shouldn't", undo);
    }
    return null;
}