org.argeo.eclipse.ui.workbench/src/org/argeo/eclipse/ui/workbench/commands/RenameNode.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.eclipse.ui.workbench.commands;
  17
  18 import java.util.Iterator;
  19
  20 import javax.jcr.Node;
  21 import javax.jcr.RepositoryException;
  22 import javax.jcr.Session;
  23
  24 import org.argeo.ArgeoException;
  25 import org.argeo.eclipse.ui.dialogs.SingleValue;
  26 import org.argeo.eclipse.ui.workbench.WorkbenchUiPlugin;
  27 import org.argeo.eclipse.ui.workbench.internal.jcr.model.SingleJcrNodeElem;
  28 import org.argeo.eclipse.ui.workbench.jcr.JcrBrowserView;
  29 import org.argeo.jcr.JcrUtils;
  30 import org.eclipse.core.commands.AbstractHandler;
  31 import org.eclipse.core.commands.ExecutionEvent;
  32 import org.eclipse.core.commands.ExecutionException;
  33 import org.eclipse.jface.viewers.ISelection;
  34 import org.eclipse.jface.viewers.IStructuredSelection;
  35 import org.eclipse.ui.IWorkbenchPage;
  36 import org.eclipse.ui.handlers.HandlerUtil;
  37
  38 /**
  39  * Canonically call JCR {@link Session#move(String, String)} on the first
  40  * element returned by {@link HandlerUtil#getActiveWorkbenchWindow()}
  41  * (...getActivePage().getSelection()), if it is a {@link SingleJcrNodeElem}.
  42  * The user must then fill a new name in and confirm
  43  */
  44 public class RenameNode extends AbstractHandler {
  45         public final static String ID = WorkbenchUiPlugin.ID + ".renameNode";
  46
  47         public Object execute(ExecutionEvent event) throws ExecutionException {
  48                 IWorkbenchPage iwp = HandlerUtil.getActiveWorkbenchWindow(event)
  49                                 .getActivePage();
  50
  51                 ISelection selection = iwp.getSelection();
  52                 if (selection == null || !(selection instanceof IStructuredSelection))
  53                         return null;
  54
  55                 Iterator<?> lst = ((IStructuredSelection) selection).iterator();
  56                 if (lst.hasNext()) {
  57                         Object element = lst.next();
  58                         if (element instanceof SingleJcrNodeElem) {
  59                                 SingleJcrNodeElem sjn = (SingleJcrNodeElem) element;
  60                                 Node node = sjn.getNode();
  61                                 Session session = null;
  62                                 String newName = null;
  63                                 String oldPath = null;
  64                                 try {
  65                                         newName = SingleValue.ask("New node name",
  66                                                         "Please provide a new name for [" + node.getName()
  67                                                                         + "]");
  68                                         // TODO sanity check and user feedback
  69                                         newName = JcrUtils.replaceInvalidChars(newName);
  70                                         oldPath = node.getPath();
  71                                         session = node.getSession();
  72                                         session.move(oldPath, JcrUtils.parentPath(oldPath) + "/"
  73                                                         + newName);
  74                                         session.save();
  75
  76                                         // Manually refresh the browser view. Must be enhanced
  77                                         if (iwp.getActivePart() instanceof JcrBrowserView)
  78                                                 ((JcrBrowserView) iwp.getActivePart()).refresh(sjn);
  79                                 } catch (RepositoryException e) {
  80                                         throw new ArgeoException("Unable to rename " + node
  81                                                         + " to " + newName, e);
  82                                 }
  83                         }
  84                 }
  85                 return null;
  86         }
  87 }