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.cms.ui.workbench.internal.useradmin.commands;
  17
  18 import java.util.ArrayList;
  19 import java.util.Iterator;
  20 import java.util.List;
  21
  22 import org.argeo.cms.ui.workbench.WorkbenchUiPlugin;
  23 import org.argeo.cms.ui.workbench.internal.useradmin.UserAdminWrapper;
  24 import org.argeo.cms.ui.workbench.internal.useradmin.parts.UserEditorInput;
  25 import org.argeo.cms.util.useradmin.UserAdminUtils;
  26 import org.eclipse.core.commands.AbstractHandler;
  27 import org.eclipse.core.commands.ExecutionEvent;
  28 import org.eclipse.core.commands.ExecutionException;
  29 import org.eclipse.jface.dialogs.MessageDialog;
  30 import org.eclipse.jface.viewers.ISelection;
  31 import org.eclipse.jface.viewers.IStructuredSelection;
  32 import org.eclipse.ui.IEditorPart;
  33 import org.eclipse.ui.IWorkbenchPage;
  34 import org.eclipse.ui.handlers.HandlerUtil;
  35 import org.osgi.service.useradmin.Group;
  36 import org.osgi.service.useradmin.UserAdmin;
  37 import org.osgi.service.useradmin.UserAdminEvent;
  38
  39 /** Delete the selected groups */
  40 public class DeleteGroups extends AbstractHandler {
  41         public final static String ID = WorkbenchUiPlugin.PLUGIN_ID
  42                         + ".deleteGroups";
  43
  44         /* DEPENDENCY INJECTION */
  45         private UserAdminWrapper userAdminWrapper;
  46
  47         @SuppressWarnings("unchecked")
  48         public Object execute(ExecutionEvent event) throws ExecutionException {
  49                 ISelection selection = HandlerUtil.getCurrentSelection(event);
  50                 if (selection.isEmpty())
  51                         return null;
  52
  53                 List<Group> groups = new ArrayList<Group>();
  54                 Iterator<Group> it = ((IStructuredSelection) selection).iterator();
  55                 StringBuilder builder = new StringBuilder();
  56                 while (it.hasNext()) {
  57                         Group currGroup = it.next();
  58                         String groupName = UserAdminUtils.getUsername(currGroup);
  59                         // TODO add checks
  60                         builder.append(groupName).append("; ");
  61                         groups.add(currGroup);
  62                 }
  63
  64                 if (!MessageDialog.openQuestion(HandlerUtil.getActiveShell(event),
  65                                 "Delete Groups",
  66                                 "Are you sure that you " + "want to delete these groups?\n"
  67                                                 + builder.substring(0, builder.length() - 2)))
  68                         return null;
  69
  70                 userAdminWrapper.beginTransactionIfNeeded();
  71                 UserAdmin userAdmin = userAdminWrapper.getUserAdmin();
  72                 IWorkbenchPage iwp = HandlerUtil.getActiveWorkbenchWindow(event)
  73                                 .getActivePage();
  74                 for (Group group : groups) {
  75                         String groupName = group.getName();
  76                         // TODO find a way to close the editor cleanly if opened. Cannot be
  77                         // done through the UserAdminListeners, it causes a
  78                         // java.util.ConcurrentModificationException because disposing the
  79                         // editor unregisters and disposes the listener
  80                         IEditorPart part = iwp.findEditor(new UserEditorInput(groupName));
  81                         if (part != null)
  82                                 iwp.closeEditor(part, false);
  83                         userAdmin.removeRole(groupName);
  84                 }
  85                 userAdminWrapper.commitOrNotifyTransactionStateChange();
  86
  87                 // Update the view
  88                 for (Group group : groups) {
  89                         userAdminWrapper.notifyListeners(new UserAdminEvent(null,
  90                                         UserAdminEvent.ROLE_REMOVED, group));
  91                 }
  92
  93                 return null;
  94         }
  95
  96         /* DEPENDENCY INJECTION */
  97         public void setUserAdminWrapper(UserAdminWrapper userAdminWrapper) {
  98                 this.userAdminWrapper = userAdminWrapper;
  99         }
 100 }