org.argeo.security.ui.admin/src/org/argeo/security/ui/admin/internal/commands/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.security.ui.admin.internal.commands;
  17
  18 import java.util.ArrayList;
  19 import java.util.Iterator;
  20 import java.util.List;
  21
  22 import org.argeo.security.ui.admin.SecurityAdminPlugin;
  23 import org.argeo.security.ui.admin.internal.UiAdminUtils;
  24 import org.argeo.security.ui.admin.internal.UserAdminWrapper;
  25 import org.eclipse.core.commands.AbstractHandler;
  26 import org.eclipse.core.commands.ExecutionEvent;
  27 import org.eclipse.core.commands.ExecutionException;
  28 import org.eclipse.jface.dialogs.MessageDialog;
  29 import org.eclipse.jface.viewers.ISelection;
  30 import org.eclipse.jface.viewers.IStructuredSelection;
  31 import org.eclipse.ui.handlers.HandlerUtil;
  32 import org.osgi.service.useradmin.User;
  33 import org.osgi.service.useradmin.UserAdmin;
  34 import org.osgi.service.useradmin.UserAdminEvent;
  35
  36 /** Deletes the selected users */
  37 public class DeleteUsers extends AbstractHandler {
  38         public final static String ID = SecurityAdminPlugin.PLUGIN_ID
  39                         + ".deleteUsers";
  40
  41         /* DEPENDENCY INJECTION */
  42         private UserAdminWrapper userAdminWrapper;
  43
  44         @SuppressWarnings("unchecked")
  45         public Object execute(ExecutionEvent event) throws ExecutionException {
  46                 ISelection selection = HandlerUtil.getCurrentSelection(event);
  47                 if (selection.isEmpty())
  48                         return null;
  49
  50                 Iterator<User> it = ((IStructuredSelection) selection).iterator();
  51                 List<User> users = new ArrayList<User>();
  52                 StringBuilder builder = new StringBuilder();
  53
  54                 while (it.hasNext()) {
  55                         User currUser = it.next();
  56                         String userName = UiAdminUtils.getUsername(currUser);
  57                         if (UiAdminUtils.isCurrentUser(currUser)) {
  58                                 MessageDialog.openError(HandlerUtil.getActiveShell(event),
  59                                                 "Deletion forbidden",
  60                                                 "You cannot delete your own user this way.");
  61                                 return null;
  62                         }
  63                         builder.append(userName).append("; ");
  64                         users.add(currUser);
  65                 }
  66
  67                 if (!MessageDialog.openQuestion(
  68                                 HandlerUtil.getActiveShell(event),
  69                                 "Delete Users",
  70                                 "Are you sure that you want to delete these users?\n"
  71                                                 + builder.substring(0, builder.length() - 2)))
  72                         return null;
  73
  74                 userAdminWrapper.beginTransactionIfNeeded();
  75                 UserAdmin userAdmin = userAdminWrapper.getUserAdmin();
  76                 for (User user : users) {
  77                         userAdmin.removeRole(user.getName());
  78                         userAdminWrapper.notifyListeners(new UserAdminEvent(null,
  79                                         UserAdminEvent.ROLE_REMOVED, user));
  80                 }
  81                 return null;
  82         }
  83
  84         /* DEPENDENCY INJECTION */
  85         public void setUserAdminWrapper(UserAdminWrapper userAdminWrapper) {
  86                 this.userAdminWrapper = userAdminWrapper;
  87         }
  88 }