org.argeo.cms.e4/src/org/argeo/cms/e4/users/handlers/DeleteUsers.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.cms.e4.users.handlers;
  17
  18 import java.util.List;
  19
  20 import javax.inject.Inject;
  21 import javax.inject.Named;
  22
  23 import org.argeo.cms.e4.users.UserAdminWrapper;
  24 import org.argeo.cms.e4.users.UsersView;
  25 import org.argeo.cms.util.UserAdminUtils;
  26 import org.eclipse.e4.core.di.annotations.CanExecute;
  27 import org.eclipse.e4.core.di.annotations.Execute;
  28 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  29 import org.eclipse.e4.ui.services.IServiceConstants;
  30 import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
  31 import org.eclipse.jface.dialogs.MessageDialog;
  32 import org.eclipse.swt.widgets.Display;
  33 import org.osgi.service.useradmin.User;
  34 import org.osgi.service.useradmin.UserAdmin;
  35 import org.osgi.service.useradmin.UserAdminEvent;
  36
  37 /** Delete the selected users */
  38 public class DeleteUsers {
  39         // public final static String ID = WorkbenchUiPlugin.PLUGIN_ID + ".deleteUsers";
  40
  41         /* DEPENDENCY INJECTION */
  42         @Inject
  43         private UserAdminWrapper userAdminWrapper;
  44
  45         @SuppressWarnings("unchecked")
  46         @Execute
  47         public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart part, ESelectionService selectionService) {
  48                 // ISelection selection = null;// HandlerUtil.getCurrentSelection(event);
  49                 // if (selection.isEmpty())
  50                 // return null;
  51                 List<User> selection = (List<User>) selectionService.getSelection();
  52                 if (selection == null)
  53                         return;
  54
  55 //              Iterator<User> it = ((IStructuredSelection) selection).iterator();
  56 //              List<User> users = new ArrayList<User>();
  57                 StringBuilder builder = new StringBuilder();
  58
  59                 for(User user:selection) {
  60                         User currUser = user;
  61 //                      User currUser = it.next();
  62                         String userName = UserAdminUtils.getUserLocalId(currUser.getName());
  63                         if (UserAdminUtils.isCurrentUser(currUser)) {
  64                                 MessageDialog.openError(Display.getCurrent().getActiveShell(), "Deletion forbidden",
  65                                                 "You cannot delete your own user this way.");
  66                                 return;
  67                         }
  68                         builder.append(userName).append("; ");
  69 //                      users.add(currUser);
  70                 }
  71
  72                 if (!MessageDialog.openQuestion(Display.getCurrent().getActiveShell(), "Delete Users",
  73                                 "Are you sure that you want to delete these users?\n" + builder.substring(0, builder.length() - 2)))
  74                         return;
  75
  76                 userAdminWrapper.beginTransactionIfNeeded();
  77                 UserAdmin userAdmin = userAdminWrapper.getUserAdmin();
  78                 // IWorkbenchPage iwp =
  79                 // HandlerUtil.getActiveWorkbenchWindow(event).getActivePage();
  80
  81                 for (User user : selection) {
  82                         String userName = user.getName();
  83                         // TODO find a way to close the editor cleanly if opened. Cannot be
  84                         // done through the UserAdminListeners, it causes a
  85                         // java.util.ConcurrentModificationException because disposing the
  86                         // editor unregisters and disposes the listener
  87                         // IEditorPart part = iwp.findEditor(new UserEditorInput(userName));
  88                         // if (part != null)
  89                         // iwp.closeEditor(part, false);
  90                         userAdmin.removeRole(userName);
  91                 }
  92                 userAdminWrapper.commitOrNotifyTransactionStateChange();
  93
  94                 for (User user : selection) {
  95                         userAdminWrapper.notifyListeners(new UserAdminEvent(null, UserAdminEvent.ROLE_REMOVED, user));
  96                 }
  97         }
  98
  99         @CanExecute
 100         public boolean canExecute(@Named(IServiceConstants.ACTIVE_PART) MPart part, ESelectionService selectionService) {
 101                 return part.getObject() instanceof UsersView && selectionService.getSelection() != null;
 102         }
 103 }