/**
   * Returns the name of the type with its qualified name
   *
   * @param type a type
   * @return the name of the type with its qualified name
   */
  public static String getTypeLabel(Type type, Namespace model) {
    String label = ""; // $NON-NLS-1$

    List<Package> importedPackages = new ArrayList<Package>(model.getImportedPackages());

    List<Package> visitedPackages = new ArrayList<Package>();
    Package currentPackage = type.getNearestPackage();

    boolean rootFound = false;

    while (currentPackage != null && !rootFound) {
      visitedPackages.add(currentPackage);
      if (importedPackages.contains(currentPackage) || currentPackage == model) {
        rootFound = true;
      }
      Element owner = currentPackage.getOwner();
      while (owner != null && !(owner instanceof Package)) owner = owner.getOwner();

      currentPackage = owner != null ? (Package) owner : null;
    }

    for (int i = visitedPackages.size() - 1; i >= 0; i--) {
      label += visitedPackages.get(i).getName() + "::"; // $NON-NLS-1$
    }

    return label + type.getName();
  }
  /**
   * Utility methods which returns the list of classifiers that are directly or indirectly owned by
   * the namespaces imported by a context namespace
   *
   * @param context The context namespace
   * @return the list of classifiers that are directly or indirectly owned by the namespaces
   *     imported by the context namespace
   */
  private List<Classifier> getRecursivelyImportedClassifiers(Namespace context) {
    List<Classifier> recursivelyImportedClassifiers = new ArrayList<Classifier>();

    List<Package> importedPackages = context.getImportedPackages();
    for (Package p : importedPackages) {
      recursivelyImportedClassifiers.addAll(getRecursivelyOwnedClassifiers(p));
    }

    return recursivelyImportedClassifiers;
  }
  /**
   * Provides custom completion for the root element in a qualified name
   *
   * @see
   *     org.eclipse.papyrus.uml.textedit.property.xtext.ui.contentassist.AbstractUmlPropertyProposalProvider#completeTypeRule_Path(org.eclipse.emf.ecore.EObject,
   *     org.eclipse.xtext.Assignment,
   *     org.eclipse.xtext.ui.editor.contentassist.ContentAssistContext,
   *     org.eclipse.xtext.ui.editor.contentassist.ICompletionProposalAcceptor)
   */
  @Override
  public void completeTypeRule_Path(
      EObject model,
      Assignment assignment,
      ContentAssistContext context,
      ICompletionProposalAcceptor acceptor) {
    Namespace root =
        (Namespace)
            EcoreUtil.getRootContainer(ContextElementUtil.getContextElement(model.eResource()));

    if (root == null) {
      return;
    }

    // first accept the root Model
    String completionString = root.getName() + "::";
    String displayString = root.getName() + "::";
    // String displayString = c.getName() ;
    CustomCompletionProposal completionProposal =
        CompletionProposalUtils.createCompletionProposalWithReplacementOfPrefix(
            root, completionString, displayString, context);
    acceptor.accept(completionProposal);

    // then accepts all packages imported by Model
    List<Package> importedPackages = root.getImportedPackages();
    for (Package p : importedPackages) {
      if (p.getName().toLowerCase().contains(context.getPrefix().toLowerCase())) {
        completionString = p.getName() + "::";
        displayString = p.getName() + "::";
        // String displayString = c.getName() ;
        completionProposal =
            CompletionProposalUtils.createCompletionProposalWithReplacementOfPrefix(
                root, completionString, displayString, context);
        acceptor.accept(completionProposal);
      }
    }
  }