org.argeo.security.ui.admin/src/org/argeo/security/ui/admin/commands/DeleteGroups.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.commands;
  17
  18 import java.util.Iterator;
  19 import java.util.Map;
  20 import java.util.TreeMap;
  21
  22 import javax.transaction.UserTransaction;
  23
  24 import org.argeo.security.ui.admin.SecurityAdminPlugin;
  25 import org.argeo.security.ui.admin.internal.UiAdminUtils;
  26 import org.argeo.security.ui.admin.internal.UserAdminConstants;
  27 import org.argeo.security.ui.admin.views.GroupsView;
  28 import org.eclipse.core.commands.AbstractHandler;
  29 import org.eclipse.core.commands.ExecutionEvent;
  30 import org.eclipse.core.commands.ExecutionException;
  31 import org.eclipse.jface.dialogs.MessageDialog;
  32 import org.eclipse.jface.viewers.ISelection;
  33 import org.eclipse.jface.viewers.IStructuredSelection;
  34 import org.eclipse.ui.IWorkbenchPage;
  35 import org.eclipse.ui.IWorkbenchPart;
  36 import org.eclipse.ui.IWorkbenchWindow;
  37 import org.eclipse.ui.PlatformUI;
  38 import org.eclipse.ui.handlers.HandlerUtil;
  39 import org.osgi.service.useradmin.Group;
  40 import org.osgi.service.useradmin.UserAdmin;
  41
  42 /** Deletes the selected groups */
  43 public class DeleteGroups extends AbstractHandler {
  44         public final static String ID = SecurityAdminPlugin.PLUGIN_ID
  45                         + ".deleteGroups";
  46
  47         /* DEPENDENCY INJECTION */
  48         private UserAdmin userAdmin;
  49         private UserTransaction userTransaction;
  50
  51         @SuppressWarnings("unchecked")
  52         public Object execute(ExecutionEvent event) throws ExecutionException {
  53                 ISelection selection = HandlerUtil.getCurrentSelection(event);
  54                 if (selection.isEmpty())
  55                         return null;
  56
  57                 Map<String, String> toDelete = new TreeMap<String, String>();
  58                 // List<String> names = new ArrayList<String>();
  59                 Iterator<Group> it = ((IStructuredSelection) selection).iterator();
  60                 while (it.hasNext()) {
  61                         Group currGroup = it.next();
  62                         String groupName = UiAdminUtils.getProperty(currGroup,
  63                                         UserAdminConstants.KEY_CN);
  64                         // TODO add checks
  65                         toDelete.put(groupName, currGroup.getName());
  66                 }
  67
  68                 if (!MessageDialog
  69                                 .openQuestion(
  70                                                 HandlerUtil.getActiveShell(event),
  71                                                 "Delete Groups",
  72                                                 "Are you sure that you want to delete groups "
  73                                                                 + toDelete.keySet()
  74                                                                 + "?\n"
  75                                                                 + "This might lead to inconsistencies in the application."))
  76                         return null;
  77
  78                 UiAdminUtils.beginTransactionIfNeeded(userTransaction);
  79                 for (String name : toDelete.values())
  80                         userAdmin.removeRole(name);
  81
  82                 // TODO rather notify the update listener
  83                 forceRefresh(event);
  84                 return null;
  85         }
  86
  87         private void forceRefresh(ExecutionEvent event) {
  88                 IWorkbenchWindow iww = HandlerUtil.getActiveWorkbenchWindow(event);
  89                 if (iww == null)
  90                         return;
  91                 IWorkbenchPage activePage = iww.getActivePage();
  92                 IWorkbenchPart part = activePage.getActivePart();
  93                 if (part instanceof GroupsView)
  94                         ((GroupsView) part).refresh();
  95         }
  96
  97         /* DEPENDENCY INJECTION */
  98         public void setUserAdmin(UserAdmin userAdmin) {
  99                 this.userAdmin = userAdmin;
 100         }
 101
 102         public void setUserTransaction(UserTransaction userTransaction) {
 103                 this.userTransaction = userTransaction;
 104         }
 105 }