RoleItemProvider.java

/*
 * Copyright (c) 2012, 2013, 2015, 2016 Eike Stepper (Berlin, Germany) and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Eike Stepper - initial API and implementation
 */
package org.eclipse.emf.cdo.security.provider;

import org.eclipse.emf.cdo.security.Role;
import org.eclipse.emf.cdo.security.SecurityFactory;
import org.eclipse.emf.cdo.security.SecurityPackage;

import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.edit.command.CommandParameter;
import org.eclipse.emf.edit.provider.ComposeableAdapterFactory;
import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.ItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.ViewerNotification;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;

/**
 * This is the item provider adapter for a {@link org.eclipse.emf.cdo.security.Role} object.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public class RoleItemProvider extends SecurityItemItemProvider
{
  /**
   * This constructs an instance from a factory and a notifier.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public RoleItemProvider(AdapterFactory adapterFactory)
  {
    super(adapterFactory);
  }

  /**
   * This returns the property descriptors for the adapted class.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public List<IItemPropertyDescriptor> getPropertyDescriptors(Object object)
  {
    if (itemPropertyDescriptors == null)
    {
      super.getPropertyDescriptors(object);

      addIdPropertyDescriptor(object);
      addAssigneesPropertyDescriptor(object);
    }
    return itemPropertyDescriptors;
  }

  /**
   * This adds a property descriptor for the Assignees feature.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected void addAssigneesPropertyDescriptor(Object object)
  {
    itemPropertyDescriptors.add(createItemPropertyDescriptor(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(), getResourceLocator(),
        getString("_UI_Role_assignees_feature"), //$NON-NLS-1$
        getString("_UI_PropertyDescriptor_description", "_UI_Role_assignees_feature", "_UI_Role_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
        SecurityPackage.Literals.ROLE__ASSIGNEES, true, false, true, null, null, null));
  }

  /**
   * This adds a property descriptor for the Id feature.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected void addIdPropertyDescriptor(Object object)
  {
    itemPropertyDescriptors.add(createItemPropertyDescriptor(((ComposeableAdapterFactory)adapterFactory).getRootAdapterFactory(), getResourceLocator(),
        getString("_UI_Role_id_feature"), //$NON-NLS-1$
        getString("_UI_PropertyDescriptor_description", "_UI_Role_id_feature", "_UI_Role_type"), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
        SecurityPackage.Literals.ROLE__ID, true, false, false, ItemPropertyDescriptor.GENERIC_VALUE_IMAGE, null, null));
  }

  /**
   * This specifies how to implement {@link #getChildren} and is used to deduce an appropriate feature for an
   * {@link org.eclipse.emf.edit.command.AddCommand}, {@link org.eclipse.emf.edit.command.RemoveCommand} or
   * {@link org.eclipse.emf.edit.command.MoveCommand} in {@link #createCommand}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Collection<? extends EStructuralFeature> getChildrenFeatures(Object object)
  {
    if (childrenFeatures == null)
    {
      super.getChildrenFeatures(object);
      childrenFeatures.add(SecurityPackage.Literals.ROLE__PERMISSIONS);
    }
    return childrenFeatures;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  protected EStructuralFeature getChildFeature(Object object, Object child)
  {
    // Check the type of the specified child object and return the proper feature to use for
    // adding (see {@link AddCommand}) it as a child.

    return super.getChildFeature(object, child);
  }

  /**
   * This returns Role.gif.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Object getImage(Object object)
  {
    return overlayImage(object, getResourceLocator().getImage("full/obj16/Role")); //$NON-NLS-1$
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  protected boolean shouldComposeCreationImage()
  {
    return true;
  }

  /**
   * This returns the label text for the adapted class.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated NOT
   */
  @Override
  public String getText(Object object)
  {
    String label = ((Role)object).getId();
    return label == null || label.length() == 0 ? getString("_UI_Role_type") //$NON-NLS-1$
        : label;
  }

  /**
   * This handles model notifications by calling {@link #updateChildren} to update any cached
   * children and by creating a viewer notification, which it passes to {@link #fireNotifyChanged}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public void notifyChanged(Notification notification)
  {
    updateChildren(notification);

    switch (notification.getFeatureID(Role.class))
    {
    case SecurityPackage.ROLE__ID:
      fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), false, true));
      return;
    case SecurityPackage.ROLE__PERMISSIONS:
      fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), true, false));
      return;
    }
    super.notifyChanged(notification);
  }

  /**
   * This adds {@link org.eclipse.emf.edit.command.CommandParameter}s describing the children
   * that can be created under this object.
   * <!-- begin-user-doc -->
   * @since 4.3
   * <!-- end-user-doc -->
   * @generated
   */
  @SuppressWarnings("deprecation")
  protected void collectNewChildDescriptorsGen(Collection<Object> newChildDescriptors, Object object)
  {
    super.collectNewChildDescriptors(newChildDescriptors, object);

    newChildDescriptors.add(createChildParameter(SecurityPackage.Literals.ROLE__PERMISSIONS, SecurityFactory.eINSTANCE.createClassPermission()));

    newChildDescriptors.add(createChildParameter(SecurityPackage.Literals.ROLE__PERMISSIONS, SecurityFactory.eINSTANCE.createPackagePermission()));

    newChildDescriptors.add(createChildParameter(SecurityPackage.Literals.ROLE__PERMISSIONS, SecurityFactory.eINSTANCE.createResourcePermission()));

    newChildDescriptors.add(createChildParameter(SecurityPackage.Literals.ROLE__PERMISSIONS, SecurityFactory.eINSTANCE.createFilterPermission()));
  }

  @Override
  @SuppressWarnings("deprecation")
  protected void collectNewChildDescriptors(Collection<Object> newChildDescriptors, Object object)
  {
    collectNewChildDescriptorsGen(newChildDescriptors, object);

    for (Iterator<Object> it = newChildDescriptors.iterator(); it.hasNext();)
    {
      Object newChildDescriptor = it.next();
      if (newChildDescriptor instanceof CommandParameter)
      {
        Object value = ((CommandParameter)newChildDescriptor).getValue();
        if (value instanceof org.eclipse.emf.cdo.security.ClassPermission || value instanceof org.eclipse.emf.cdo.security.PackagePermission
            || value instanceof org.eclipse.emf.cdo.security.ResourcePermission)
        {
          it.remove();
        }
      }
    }
  }

}